Ahrenkiel, Scott Phillip

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Authority KeyName Variants
56a68ba2-d9f5-4cc0-a385-0a5f2e036a57
  • Ahrenkiel, Scott Phillip (51)
Projects
Materials of Reduced Dimensions for Efficient Light Harvesting and Energy conversion Size-, shape- and structure- dependent properties of nanoparticles and nanocomposites
Electroconducting and redox-active polymers and oligomers: synthesis, structure, properties and applications U.S. Department of Energy [DE-FG02-08ER64624]
Physics of amorphous and nanostructural materials Advanced technologies for monitoring and environmental protection from chemical pollutants and radiation burden
Application of biotechnological methods for sustainable exploitation of by-products of agro-industry APV Provincial Secretariat for Science and Technological Development of the Republic of Serbia [114-451-1850/2014-03]
COST actions [CM1101, MP1106] COST Actions [CM1101, MP1106]
Czech Science Foundation [13-06700S] Modeling and Numerical Simulations of Complex Many-Body Systems
Cell Cycle Aberrations and the Impact of Oxidative Stress in Neurodegenerative Processes and Malignant Transformation of the Cell Nanostructured Functional and Composite Materials in Catalytic and Sorption Processes
Lithium-ion batteries and fuel cells - research and development Magnetic and radionuclide labeled nanostructured materials for medical applications
Nanostructured multifunctional materials and nanocomposites Ministry of Education, Science and Technological Development of the Republic of Serbia
MPNS COST Action [MP1106] NSF EPSCoR Award [1355423], State of South Dakota, Governors Office of Economic Development [SA1600653], NASA [NNX13AD31A]
Qatar National Research Fund [6-02-1-1005, 5-674-1-114] Qatar National Research Fund [8-028-1-001]
Qatar National Research Fund - NPRP grant (7-245-1-035) Qatar National Research Fund - NPRP grant (7-665-1-125)
U.S. National Aeronautics and Space Administration South Dakota EPSCoR Space Grant Consortium

Author's Bibliography

Visible-light-responsive Al2O3 powder: Photocatalytic study

Zarubica, Aleksandra; Ljupković, Radomir; Papan, Jelena; Vukoje, Ivana D.; Porobić, Slavica; Ahrenkiel, Scott Phillip; Nedeljković, Jovan

(2020)

TY  - JOUR
AU  - Zarubica, Aleksandra
AU  - Ljupković, Radomir
AU  - Papan, Jelena
AU  - Vukoje, Ivana D.
AU  - Porobić, Slavica
AU  - Ahrenkiel, Scott Phillip
AU  - Nedeljković, Jovan
PY  - 2020
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/9003
AB  - A visible-light-responsive hybrid material was prepared by surface-modification of γ-Al2O3, an insulator with a bandgap of about 8.7 eV, with 5-aminosalicylic acid (5-ASA), leading to the formation of an interfacial charge transfer (ICT) complex. The microstructural characterization of pristine γ-Al2O3 includes X-ray diffraction analysis, transmission electron microscopy, and nitrogen adsorption-desorption isotherms. The pristine γ-Al2O3 powder consists of agglomerated rod-like nanoparticles ((2-3) × (15-20) nm, diameter × length) with the large specific surface area (~420 m2/g). An enormous absorption red-shift is observed upon the formation of the ICT complex. The absorption onset of the inorganic-organic hybrid was found to be at 730 nm by diffuse reflection spectroscopy. The photocatalytic performance of prepared samples was thoroughly tested using the decolorization of the organic dye crystal violet (CV) under illumination in different spectral regions and different light intensities. Excitation with UV light leads to complete decolorization of CV, while the degradation kinetics are impeded when a visible light source is used. Also, the increase of UV light intensity induced significantly faster degradation kinetics of CV, while the degradation rates of CV are quite insensitive to the increase of visible light intensity.
T2  - Optical Materials
T1  - Visible-light-responsive Al2O3 powder: Photocatalytic study
VL  - 106
SP  - 110013
DO  - 10.1016/j.optmat.2020.110013
ER  - 
@article{
author = "Zarubica, Aleksandra and Ljupković, Radomir and Papan, Jelena and Vukoje, Ivana D. and Porobić, Slavica and Ahrenkiel, Scott Phillip and Nedeljković, Jovan",
year = "2020",
url = "https://vinar.vin.bg.ac.rs/handle/123456789/9003",
abstract = "A visible-light-responsive hybrid material was prepared by surface-modification of γ-Al2O3, an insulator with a bandgap of about 8.7 eV, with 5-aminosalicylic acid (5-ASA), leading to the formation of an interfacial charge transfer (ICT) complex. The microstructural characterization of pristine γ-Al2O3 includes X-ray diffraction analysis, transmission electron microscopy, and nitrogen adsorption-desorption isotherms. The pristine γ-Al2O3 powder consists of agglomerated rod-like nanoparticles ((2-3) × (15-20) nm, diameter × length) with the large specific surface area (~420 m2/g). An enormous absorption red-shift is observed upon the formation of the ICT complex. The absorption onset of the inorganic-organic hybrid was found to be at 730 nm by diffuse reflection spectroscopy. The photocatalytic performance of prepared samples was thoroughly tested using the decolorization of the organic dye crystal violet (CV) under illumination in different spectral regions and different light intensities. Excitation with UV light leads to complete decolorization of CV, while the degradation kinetics are impeded when a visible light source is used. Also, the increase of UV light intensity induced significantly faster degradation kinetics of CV, while the degradation rates of CV are quite insensitive to the increase of visible light intensity.",
journal = "Optical Materials",
title = "Visible-light-responsive Al2O3 powder: Photocatalytic study",
volume = "106",
pages = "110013",
doi = "10.1016/j.optmat.2020.110013"
}
Zarubica, A., Ljupković, R., Papan, J., Vukoje, I. D., Porobić, S., Ahrenkiel, S. P.,& Nedeljković, J. (2020). Visible-light-responsive Al2O3 powder: Photocatalytic study.
Optical Materials, 106, 110013.
https://doi.org/10.1016/j.optmat.2020.110013
Zarubica A, Ljupković R, Papan J, Vukoje ID, Porobić S, Ahrenkiel SP, Nedeljković J. Visible-light-responsive Al2O3 powder: Photocatalytic study. Optical Materials. 2020;106:110013
Zarubica Aleksandra, Ljupković Radomir, Papan Jelena, Vukoje Ivana D., Porobić Slavica, Ahrenkiel Scott Phillip, Nedeljković Jovan, "Visible-light-responsive Al2O3 powder: Photocatalytic study" Optical Materials, 106 (2020):110013,
https://doi.org/10.1016/j.optmat.2020.110013 .
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Selective Antimicrobial Performance of Biosynthesized Silver Nanoparticles by Horsetail Extract Against E. coli

Miljković, Miona G.; Lazić, Vesna M.; Davidović, Slađana Z.; Milivojević, Ana; Papan, Jelena; Fernandes, Margarida M.; Lanceros-Mendez, Senentxu; Ahrenkiel, Scott Phillip; Nedeljković, Jovan

(2020)

TY  - JOUR
AU  - Miljković, Miona G.
AU  - Lazić, Vesna M.
AU  - Davidović, Slađana Z.
AU  - Milivojević, Ana
AU  - Papan, Jelena
AU  - Fernandes, Margarida M.
AU  - Lanceros-Mendez, Senentxu
AU  - Ahrenkiel, Scott Phillip
AU  - Nedeljković, Jovan
PY  - 2020
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/8902
AB  - The aim of this study was the development of a non-toxic, biosynthetic antimicrobial agent which selectively acts on only one type of microorganism, and preserves the microbiota. Antimicrobial performance of biosynthesized silver nanoparticles (Ag NPs) by horsetail (Equisetum arvense L.) extract was examined against Gram-negative bacteria Escherichia coli and Gram-positive bacteria Staphylococcus aureus, as well as yeasts Candida albicans and Saccharomyces boulardii. Also, the cytotoxicity of Ag NPs was examined toward pre-osteoblast cells. The synthetic conditions—concentration of extract, temperature, and pH—were optimized to prepare silver colloids with different particle size distributions and long-term stability. The obtained samples were characterized using transmission electron microscopy, X-ray diffraction analysis, and absorption spectroscopy. The smaller-sized Ag NPs (~ 10–20 nm), prepared at a lower temperature (20 °C), showed better antimicrobial performance against E. coli compared to larger ones (~ 40–60 nm), prepared at high temperature (100 °C). On the other hand, both samples did not display any toxic action against bacteria S. aureus, or yeasts C. albicans and S. boulardii. Non-cytotoxic behavior of Ag NPs toward pre-osteoblast cells was observed for the concentrations of silver ≤ 2.25 and ≤ 4.5 mg L−1 for 10–20 and 40–60 nm-sized Ag NPs, respectively. Biosynthesized Ag NPs by horsetail extract display selective toxic action against E. coli at the ecologically acceptable concentration level. © 2019, Springer Science+Business Media, LLC, part of Springer Nature.
T2  - Journal of Inorganic and Organometallic Polymers and Materials
T1  - Selective Antimicrobial Performance of Biosynthesized Silver Nanoparticles by Horsetail Extract Against E. coli
VL  - 30
IS  - 7
SP  - 2598
EP  - 2607
DO  - 10.1007/s10904-019-01402-x
ER  - 
@article{
author = "Miljković, Miona G. and Lazić, Vesna M. and Davidović, Slađana Z. and Milivojević, Ana and Papan, Jelena and Fernandes, Margarida M. and Lanceros-Mendez, Senentxu and Ahrenkiel, Scott Phillip and Nedeljković, Jovan",
year = "2020",
url = "https://vinar.vin.bg.ac.rs/handle/123456789/8902",
abstract = "The aim of this study was the development of a non-toxic, biosynthetic antimicrobial agent which selectively acts on only one type of microorganism, and preserves the microbiota. Antimicrobial performance of biosynthesized silver nanoparticles (Ag NPs) by horsetail (Equisetum arvense L.) extract was examined against Gram-negative bacteria Escherichia coli and Gram-positive bacteria Staphylococcus aureus, as well as yeasts Candida albicans and Saccharomyces boulardii. Also, the cytotoxicity of Ag NPs was examined toward pre-osteoblast cells. The synthetic conditions—concentration of extract, temperature, and pH—were optimized to prepare silver colloids with different particle size distributions and long-term stability. The obtained samples were characterized using transmission electron microscopy, X-ray diffraction analysis, and absorption spectroscopy. The smaller-sized Ag NPs (~ 10–20 nm), prepared at a lower temperature (20 °C), showed better antimicrobial performance against E. coli compared to larger ones (~ 40–60 nm), prepared at high temperature (100 °C). On the other hand, both samples did not display any toxic action against bacteria S. aureus, or yeasts C. albicans and S. boulardii. Non-cytotoxic behavior of Ag NPs toward pre-osteoblast cells was observed for the concentrations of silver ≤ 2.25 and ≤ 4.5 mg L−1 for 10–20 and 40–60 nm-sized Ag NPs, respectively. Biosynthesized Ag NPs by horsetail extract display selective toxic action against E. coli at the ecologically acceptable concentration level. © 2019, Springer Science+Business Media, LLC, part of Springer Nature.",
journal = "Journal of Inorganic and Organometallic Polymers and Materials",
title = "Selective Antimicrobial Performance of Biosynthesized Silver Nanoparticles by Horsetail Extract Against E. coli",
volume = "30",
number = "7",
pages = "2598-2607",
doi = "10.1007/s10904-019-01402-x"
}
Miljković, M. G., Lazić, V. M., Davidović, S. Z., Milivojević, A., Papan, J., Fernandes, M. M., Lanceros-Mendez, S., Ahrenkiel, S. P.,& Nedeljković, J. (2020). Selective Antimicrobial Performance of Biosynthesized Silver Nanoparticles by Horsetail Extract Against E. coli.
Journal of Inorganic and Organometallic Polymers and Materials, 30(7), 2598-2607.
https://doi.org/10.1007/s10904-019-01402-x
Miljković MG, Lazić VM, Davidović SZ, Milivojević A, Papan J, Fernandes MM, Lanceros-Mendez S, Ahrenkiel SP, Nedeljković J. Selective Antimicrobial Performance of Biosynthesized Silver Nanoparticles by Horsetail Extract Against E. coli. Journal of Inorganic and Organometallic Polymers and Materials. 2020;30(7):2598-2607
Miljković Miona G., Lazić Vesna M., Davidović Slađana Z., Milivojević Ana, Papan Jelena, Fernandes Margarida M., Lanceros-Mendez Senentxu, Ahrenkiel Scott Phillip, Nedeljković Jovan, "Selective Antimicrobial Performance of Biosynthesized Silver Nanoparticles by Horsetail Extract Against E. coli" Journal of Inorganic and Organometallic Polymers and Materials, 30, no. 7 (2020):2598-2607,
https://doi.org/10.1007/s10904-019-01402-x .
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Size‐dependent antibacterial properties of Ag nanoparticles supported by amino‐functionalized poly(GMA‐ co ‐EGDMA) polymer

Vukoje, Ivana D.; Džunuzović, Enis S.; Dimitrijević, Suzana I.; Ahrenkiel, Scott Phillip; Nedeljković, Jovan

(2019)

TY  - JOUR
AU  - Vukoje, Ivana D.
AU  - Džunuzović, Enis S.
AU  - Dimitrijević, Suzana I.
AU  - Ahrenkiel, Scott Phillip
AU  - Nedeljković, Jovan
PY  - 2019
UR  - http://vinar.vin.bg.ac.rs/handle/123456789/8449
AB  - Size-dependent antimicrobial ability of silver nanoparticles (Ag NPs) supported by amino-functionalized poly(glycidyl methacrylate-co-ethylene glycol dimethacrylate) (poly(GMA-co-EGDMA)) macroporous copolymer was tested against Gram-negative bacteria Escherichia coli. Inorganic/organic hybrids with distinctly different average sizes of Ag NPs (6.6 and 12.1 nm) were prepared by functionalization of poly(GMA-co-EGDMA) with either 1,8-diaminooctane or ammonia, and consequent reduction of silver ions with amino groups. The transmission electron microscopy (TEM), infrared and UV–Vis reflection spectroscopy, elemental analysis, and inductively coupled plasma atomic emission measurements were used to characterize synthesized hybrid materials. Time- and concentration-dependent antimicrobial performances of prepared samples revealed higher reduction rates of E. coli when hybrid with smaller in size Ag NPs was used. The difference between rates of reduction of E. coli for different size Ag NPs is becoming more pronounced by decrease of the concentration of silver. POLYM. COMPOS., 2018. © 2018 Society of Plastics Engineers. © 2018 Society of Plastics Engineers
T2  - Polymer Composites
T1  - Size‐dependent antibacterial properties of Ag nanoparticles supported by amino‐functionalized poly(GMA‐ co ‐EGDMA) polymer
VL  - 40
IS  - 7
SP  - 2901
EP  - 2907
DO  - 10.1002/pc.25120
ER  - 
@article{
author = "Vukoje, Ivana D. and Džunuzović, Enis S. and Dimitrijević, Suzana I. and Ahrenkiel, Scott Phillip and Nedeljković, Jovan",
year = "2019",
url = "http://vinar.vin.bg.ac.rs/handle/123456789/8449",
abstract = "Size-dependent antimicrobial ability of silver nanoparticles (Ag NPs) supported by amino-functionalized poly(glycidyl methacrylate-co-ethylene glycol dimethacrylate) (poly(GMA-co-EGDMA)) macroporous copolymer was tested against Gram-negative bacteria Escherichia coli. Inorganic/organic hybrids with distinctly different average sizes of Ag NPs (6.6 and 12.1 nm) were prepared by functionalization of poly(GMA-co-EGDMA) with either 1,8-diaminooctane or ammonia, and consequent reduction of silver ions with amino groups. The transmission electron microscopy (TEM), infrared and UV–Vis reflection spectroscopy, elemental analysis, and inductively coupled plasma atomic emission measurements were used to characterize synthesized hybrid materials. Time- and concentration-dependent antimicrobial performances of prepared samples revealed higher reduction rates of E. coli when hybrid with smaller in size Ag NPs was used. The difference between rates of reduction of E. coli for different size Ag NPs is becoming more pronounced by decrease of the concentration of silver. POLYM. COMPOS., 2018. © 2018 Society of Plastics Engineers. © 2018 Society of Plastics Engineers",
journal = "Polymer Composites",
title = "Size‐dependent antibacterial properties of Ag nanoparticles supported by amino‐functionalized poly(GMA‐ co ‐EGDMA) polymer",
volume = "40",
number = "7",
pages = "2901-2907",
doi = "10.1002/pc.25120"
}
Vukoje, I. D., Džunuzović, E. S., Dimitrijević, S. I., Ahrenkiel, S. P.,& Nedeljković, J. (2019). Size‐dependent antibacterial properties of Ag nanoparticles supported by amino‐functionalized poly(GMA‐ co ‐EGDMA) polymer.
Polymer Composites, 40(7), 2901-2907.
https://doi.org/10.1002/pc.25120
Vukoje ID, Džunuzović ES, Dimitrijević SI, Ahrenkiel SP, Nedeljković J. Size‐dependent antibacterial properties of Ag nanoparticles supported by amino‐functionalized poly(GMA‐ co ‐EGDMA) polymer. Polymer Composites. 2019;40(7):2901-2907
Vukoje Ivana D., Džunuzović Enis S., Dimitrijević Suzana I., Ahrenkiel Scott Phillip, Nedeljković Jovan, "Size‐dependent antibacterial properties of Ag nanoparticles supported by amino‐functionalized poly(GMA‐ co ‐EGDMA) polymer" Polymer Composites, 40, no. 7 (2019):2901-2907,
https://doi.org/10.1002/pc.25120 .
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Antibacterial ability of immobilized silver nanoparticles in agar-agar films co-doped with magnesium ions

Davidović, Slađana Z.; Lazić, Vesna M.; Miljković, Miona G.; Gordić, Milan V.; Sekulić, Milica; Marinović-Cincović, Milena; Ratnayake, Ishara S.; Ahrenkiel, Scott Phillip; Nedeljković, Jovan

(2019)

TY  - JOUR
AU  - Davidović, Slađana Z.
AU  - Lazić, Vesna M.
AU  - Miljković, Miona G.
AU  - Gordić, Milan V.
AU  - Sekulić, Milica
AU  - Marinović-Cincović, Milena
AU  - Ratnayake, Ishara S.
AU  - Ahrenkiel, Scott Phillip
AU  - Nedeljković, Jovan
PY  - 2019
UR  - http://vinar.vin.bg.ac.rs/handle/123456789/8452
AB  - The antibacterial ability of in situ prepared nanometer-sized silver particles, immobilized in agar-agar films, was studied as a function of the concentration of co-dopant, magnesium ions. Content of inorganic components in hybrid films was determined using inductively coupled plasma optic emission spectroscopy, and found to be low (<2 wt.-%). Morphology of prepared hybrid films, studied by transmission electron microscopy, revealed the presence of non-agglomerated and randomly distributed 10–20 nm silver nanoparticles (Ag NPs) within the agar-agar matrices. Fourier-transform infrared spectroscopy indicated the distinct chemical interaction between Ag NPs and polymer chains. Thermogravimetric analysis, as well as the determination of tensile strength, Young's modulus, and elongation at break showed improvement of thermal stability and mechanical properties of agar-agar matrices upon the incorporation of Ag NPs due to high compatibility between the hydrophilic organic component and inorganic components. The complete microbial reduction of Gram-positive bacteria Staphylococcus aureuswas observed for all agar-silver films, while satisfactory results were observed for Gram-negative bacteria Pseudomonas aeruginosa (≥99.6%). The release of Ag+ ions is suppressed by the increase of the concentration of Mg2+ ions and it was found to be significantly smaller (≤0.24 ppm) than the harmful ecological level (1 ppm). © 2019 Elsevier Ltd
T2  - Carbohydrate Polymers
T1  - Antibacterial ability of immobilized silver nanoparticles in agar-agar films co-doped with magnesium ions
VL  - 224
SP  - 115187
DO  - 10.1016/j.carbpol.2019.115187
ER  - 
@article{
author = "Davidović, Slađana Z. and Lazić, Vesna M. and Miljković, Miona G. and Gordić, Milan V. and Sekulić, Milica and Marinović-Cincović, Milena and Ratnayake, Ishara S. and Ahrenkiel, Scott Phillip and Nedeljković, Jovan",
year = "2019",
url = "http://vinar.vin.bg.ac.rs/handle/123456789/8452",
abstract = "The antibacterial ability of in situ prepared nanometer-sized silver particles, immobilized in agar-agar films, was studied as a function of the concentration of co-dopant, magnesium ions. Content of inorganic components in hybrid films was determined using inductively coupled plasma optic emission spectroscopy, and found to be low (<2 wt.-%). Morphology of prepared hybrid films, studied by transmission electron microscopy, revealed the presence of non-agglomerated and randomly distributed 10–20 nm silver nanoparticles (Ag NPs) within the agar-agar matrices. Fourier-transform infrared spectroscopy indicated the distinct chemical interaction between Ag NPs and polymer chains. Thermogravimetric analysis, as well as the determination of tensile strength, Young's modulus, and elongation at break showed improvement of thermal stability and mechanical properties of agar-agar matrices upon the incorporation of Ag NPs due to high compatibility between the hydrophilic organic component and inorganic components. The complete microbial reduction of Gram-positive bacteria Staphylococcus aureuswas observed for all agar-silver films, while satisfactory results were observed for Gram-negative bacteria Pseudomonas aeruginosa (≥99.6%). The release of Ag+ ions is suppressed by the increase of the concentration of Mg2+ ions and it was found to be significantly smaller (≤0.24 ppm) than the harmful ecological level (1 ppm). © 2019 Elsevier Ltd",
journal = "Carbohydrate Polymers",
title = "Antibacterial ability of immobilized silver nanoparticles in agar-agar films co-doped with magnesium ions",
volume = "224",
pages = "115187",
doi = "10.1016/j.carbpol.2019.115187"
}
Davidović, S. Z., Lazić, V. M., Miljković, M. G., Gordić, M. V., Sekulić, M., Marinović-Cincović, M., Ratnayake, I. S., Ahrenkiel, S. P.,& Nedeljković, J. (2019). Antibacterial ability of immobilized silver nanoparticles in agar-agar films co-doped with magnesium ions.
Carbohydrate Polymers, 224, 115187.
https://doi.org/10.1016/j.carbpol.2019.115187
Davidović SZ, Lazić VM, Miljković MG, Gordić MV, Sekulić M, Marinović-Cincović M, Ratnayake IS, Ahrenkiel SP, Nedeljković J. Antibacterial ability of immobilized silver nanoparticles in agar-agar films co-doped with magnesium ions. Carbohydrate Polymers. 2019;224:115187
Davidović Slađana Z., Lazić Vesna M., Miljković Miona G., Gordić Milan V., Sekulić Milica, Marinović-Cincović Milena, Ratnayake Ishara S., Ahrenkiel Scott Phillip, Nedeljković Jovan, "Antibacterial ability of immobilized silver nanoparticles in agar-agar films co-doped with magnesium ions" Carbohydrate Polymers, 224 (2019):115187,
https://doi.org/10.1016/j.carbpol.2019.115187 .
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Gold nanorod-polyaniline composites: Synthesis and evaluation as anode electrocatalysts for direct borohydride fuel cells

Milikić, Jadranka; Stamenović, Una; Vodnik, Vesna; Ahrenkiel, Scott Phillip; Šljukić, Biljana

(2019)

TY  - JOUR
AU  - Milikić, Jadranka
AU  - Stamenović, Una
AU  - Vodnik, Vesna
AU  - Ahrenkiel, Scott Phillip
AU  - Šljukić, Biljana
PY  - 2019
UR  - http://vinar.vin.bg.ac.rs/handle/123456789/8609
AB  - Two gold nanorod-polyaniline (Au-PANI) composites with different contents of Au were prepared by two methods. An ex situ method, in the presence of preformed gold nanorods (AuNRs) and in situ one, when an AuNRs and PANI matrix is produced simultaneously, were used. Both methods were performed in immiscible water/toluene biphasic system as a simple interfacial polymerization process. Optical, structural and morphological characteristics of the formed nanocomposites were identified. It was found that AuNRs are embedded in the conducting emeraldine salt form of PANI. Nanocomposites containing 2.0 and 28.9 wt% of Au were subsequently systematically studied for borohydride oxidation reaction (BOR) for potential application in direct borohydride-peroxide fuel cell (DBPFC). Reaction parameters: number of electrons exchanged, order of reaction and activation energy, were evaluated. Both Au-PANI nanocomposites showed activity for BOR. A laboratory DBPFC was tested reaching specific peak power density of 184 Wg(-1) at 65 degrees C with Au-PANI 1 nanocomposite (containing only 2.0 wt% of Au) as anode.
T2  - Electrochimica Acta
T1  - Gold nanorod-polyaniline composites: Synthesis and evaluation as anode electrocatalysts for direct borohydride fuel cells
VL  - 328
SP  - 135115
DO  - 10.1016/j.electacta.2019.135115
ER  - 
@article{
author = "Milikić, Jadranka and Stamenović, Una and Vodnik, Vesna and Ahrenkiel, Scott Phillip and Šljukić, Biljana",
year = "2019",
url = "http://vinar.vin.bg.ac.rs/handle/123456789/8609",
abstract = "Two gold nanorod-polyaniline (Au-PANI) composites with different contents of Au were prepared by two methods. An ex situ method, in the presence of preformed gold nanorods (AuNRs) and in situ one, when an AuNRs and PANI matrix is produced simultaneously, were used. Both methods were performed in immiscible water/toluene biphasic system as a simple interfacial polymerization process. Optical, structural and morphological characteristics of the formed nanocomposites were identified. It was found that AuNRs are embedded in the conducting emeraldine salt form of PANI. Nanocomposites containing 2.0 and 28.9 wt% of Au were subsequently systematically studied for borohydride oxidation reaction (BOR) for potential application in direct borohydride-peroxide fuel cell (DBPFC). Reaction parameters: number of electrons exchanged, order of reaction and activation energy, were evaluated. Both Au-PANI nanocomposites showed activity for BOR. A laboratory DBPFC was tested reaching specific peak power density of 184 Wg(-1) at 65 degrees C with Au-PANI 1 nanocomposite (containing only 2.0 wt% of Au) as anode.",
journal = "Electrochimica Acta",
title = "Gold nanorod-polyaniline composites: Synthesis and evaluation as anode electrocatalysts for direct borohydride fuel cells",
volume = "328",
pages = "135115",
doi = "10.1016/j.electacta.2019.135115"
}
Milikić, J., Stamenović, U., Vodnik, V., Ahrenkiel, S. P.,& Šljukić, B. (2019). Gold nanorod-polyaniline composites: Synthesis and evaluation as anode electrocatalysts for direct borohydride fuel cells.
Electrochimica Acta, 328, 135115.
https://doi.org/10.1016/j.electacta.2019.135115
Milikić J, Stamenović U, Vodnik V, Ahrenkiel SP, Šljukić B. Gold nanorod-polyaniline composites: Synthesis and evaluation as anode electrocatalysts for direct borohydride fuel cells. Electrochimica Acta. 2019;328:135115
Milikić Jadranka, Stamenović Una, Vodnik Vesna, Ahrenkiel Scott Phillip, Šljukić Biljana, "Gold nanorod-polyaniline composites: Synthesis and evaluation as anode electrocatalysts for direct borohydride fuel cells" Electrochimica Acta, 328 (2019):135115,
https://doi.org/10.1016/j.electacta.2019.135115 .
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Sorption of divalent heavy metal ions onto functionalized biogenic hydroxyapatite with caffeic acid and 3,4-dihydroxybenzoic acid

Smičiklas, Ivana D.; Lazić, Vesna M.; Živković, Ljiljana; Porobić, Slavica; Ahrenkiel, Scott Phillip; Nedeljković, Jovan

(2019)

TY  - JOUR
AU  - Smičiklas, Ivana D.
AU  - Lazić, Vesna M.
AU  - Živković, Ljiljana
AU  - Porobić, Slavica
AU  - Ahrenkiel, Scott Phillip
AU  - Nedeljković, Jovan
PY  - 2019
UR  - http://vinar.vin.bg.ac.rs/handle/123456789/8172
AB  - The sorption ability of biogenic hydroxyapatite (BHAP) towards heavy metal ions (Pb, Cu, Ni, Cd, and Zn) is compared with functionalized BHAP powders with caffeic acid (CA) and 3,4-dihydroxybenzoic acid (3,4-DHBA). The functionalization of the BHAP with either CA or 3,4-DHBA is indicated by the appearance of the colored powders due to the formation of the interfacial charge transfer (ICT) complexes. The detailed characterization of as-prepared and functionalized BHAP samples was performed using transmission electron microscopy, reflection spectroscopy, thermogravimetric analysis and determination of zeta potential. All three sorbents clearly displayed preferential sorption of Pb ions when the total concentration of multi-component equimolar solutions of heavy metal ions is high. It should be emphasized that the sorption capacity of functionalized BHAP with either CA or 3,4-BHAP was found to be higher, up to 60%, compared to as-prepared BHAP without the decrease of selectivity towards Pb ions. © 2019, © 2019 Taylor & Francis Group, LLC.
T2  - Journal of Environmental Science and Health, Part A
T1  - Sorption of divalent heavy metal ions onto functionalized biogenic hydroxyapatite with caffeic acid and 3,4-dihydroxybenzoic acid
VL  - 54
IS  - 9
SP  - 899
EP  - 905
DO  - 10.1080/10934529.2019.1606575
ER  - 
@article{
author = "Smičiklas, Ivana D. and Lazić, Vesna M. and Živković, Ljiljana and Porobić, Slavica and Ahrenkiel, Scott Phillip and Nedeljković, Jovan",
year = "2019",
url = "http://vinar.vin.bg.ac.rs/handle/123456789/8172",
abstract = "The sorption ability of biogenic hydroxyapatite (BHAP) towards heavy metal ions (Pb, Cu, Ni, Cd, and Zn) is compared with functionalized BHAP powders with caffeic acid (CA) and 3,4-dihydroxybenzoic acid (3,4-DHBA). The functionalization of the BHAP with either CA or 3,4-DHBA is indicated by the appearance of the colored powders due to the formation of the interfacial charge transfer (ICT) complexes. The detailed characterization of as-prepared and functionalized BHAP samples was performed using transmission electron microscopy, reflection spectroscopy, thermogravimetric analysis and determination of zeta potential. All three sorbents clearly displayed preferential sorption of Pb ions when the total concentration of multi-component equimolar solutions of heavy metal ions is high. It should be emphasized that the sorption capacity of functionalized BHAP with either CA or 3,4-BHAP was found to be higher, up to 60%, compared to as-prepared BHAP without the decrease of selectivity towards Pb ions. © 2019, © 2019 Taylor & Francis Group, LLC.",
journal = "Journal of Environmental Science and Health, Part A",
title = "Sorption of divalent heavy metal ions onto functionalized biogenic hydroxyapatite with caffeic acid and 3,4-dihydroxybenzoic acid",
volume = "54",
number = "9",
pages = "899-905",
doi = "10.1080/10934529.2019.1606575"
}
Smičiklas, I. D., Lazić, V. M., Živković, L., Porobić, S., Ahrenkiel, S. P.,& Nedeljković, J. (2019). Sorption of divalent heavy metal ions onto functionalized biogenic hydroxyapatite with caffeic acid and 3,4-dihydroxybenzoic acid.
Journal of Environmental Science and Health, Part A, 54(9), 899-905.
https://doi.org/10.1080/10934529.2019.1606575
Smičiklas ID, Lazić VM, Živković L, Porobić S, Ahrenkiel SP, Nedeljković J. Sorption of divalent heavy metal ions onto functionalized biogenic hydroxyapatite with caffeic acid and 3,4-dihydroxybenzoic acid. Journal of Environmental Science and Health, Part A. 2019;54(9):899-905
Smičiklas Ivana D., Lazić Vesna M., Živković Ljiljana, Porobić Slavica, Ahrenkiel Scott Phillip, Nedeljković Jovan, "Sorption of divalent heavy metal ions onto functionalized biogenic hydroxyapatite with caffeic acid and 3,4-dihydroxybenzoic acid" Journal of Environmental Science and Health, Part A, 54, no. 9 (2019):899-905,
https://doi.org/10.1080/10934529.2019.1606575 .
2
1
3

Sorption of divalent heavy metal ions onto functionalized biogenic hydroxyapatite with caffeic acid and 3,4-dihydroxybenzoic acid

Smičiklas, Ivana D.; Lazić, Vesna M.; Živković, Ljiljana; Porobić, Slavica; Ahrenkiel, Scott Phillip; Nedeljković, Jovan

(2019)

TY  - JOUR
AU  - Smičiklas, Ivana D.
AU  - Lazić, Vesna M.
AU  - Živković, Ljiljana
AU  - Porobić, Slavica
AU  - Ahrenkiel, Scott Phillip
AU  - Nedeljković, Jovan
PY  - 2019
UR  - http://vinar.vin.bg.ac.rs/handle/123456789/8188
AB  - The sorption ability of biogenic hydroxyapatite (BHAP) towards heavy metal ions (Pb, Cu, Ni, Cd, and Zn) is compared with functionalized BHAP powders with caffeic acid (CA) and 3,4-dihydroxybenzoic acid (3,4-DHBA). The functionalization of the BHAP with either CA or 3,4-DHBA is indicated by the appearance of the colored powders due to the formation of the interfacial charge transfer (ICT) complexes. The detailed characterization of as-prepared and functionalized BHAP samples was performed using transmission electron microscopy, reflection spectroscopy, thermogravimetric analysis and determination of zeta potential. All three sorbents clearly displayed preferential sorption of Pb ions when the total concentration of multi-component equimolar solutions of heavy metal ions is high. It should be emphasized that the sorption capacity of functionalized BHAP with either CA or 3,4-BHAP was found to be higher, up to 60%, compared to as-prepared BHAP without the decrease of selectivity towards Pb ions. © 2019, © 2019 Taylor & Francis Group, LLC.
T2  - Journal of Environmental Science and Health, Part A
T1  - Sorption of divalent heavy metal ions onto functionalized biogenic hydroxyapatite with caffeic acid and 3,4-dihydroxybenzoic acid
VL  - 54
IS  - 9
SP  - 899
EP  - 905
DO  - 10.1080/10934529.2019.1606575
ER  - 
@article{
author = "Smičiklas, Ivana D. and Lazić, Vesna M. and Živković, Ljiljana and Porobić, Slavica and Ahrenkiel, Scott Phillip and Nedeljković, Jovan",
year = "2019",
url = "http://vinar.vin.bg.ac.rs/handle/123456789/8188",
abstract = "The sorption ability of biogenic hydroxyapatite (BHAP) towards heavy metal ions (Pb, Cu, Ni, Cd, and Zn) is compared with functionalized BHAP powders with caffeic acid (CA) and 3,4-dihydroxybenzoic acid (3,4-DHBA). The functionalization of the BHAP with either CA or 3,4-DHBA is indicated by the appearance of the colored powders due to the formation of the interfacial charge transfer (ICT) complexes. The detailed characterization of as-prepared and functionalized BHAP samples was performed using transmission electron microscopy, reflection spectroscopy, thermogravimetric analysis and determination of zeta potential. All three sorbents clearly displayed preferential sorption of Pb ions when the total concentration of multi-component equimolar solutions of heavy metal ions is high. It should be emphasized that the sorption capacity of functionalized BHAP with either CA or 3,4-BHAP was found to be higher, up to 60%, compared to as-prepared BHAP without the decrease of selectivity towards Pb ions. © 2019, © 2019 Taylor & Francis Group, LLC.",
journal = "Journal of Environmental Science and Health, Part A",
title = "Sorption of divalent heavy metal ions onto functionalized biogenic hydroxyapatite with caffeic acid and 3,4-dihydroxybenzoic acid",
volume = "54",
number = "9",
pages = "899-905",
doi = "10.1080/10934529.2019.1606575"
}
Smičiklas, I. D., Lazić, V. M., Živković, L., Porobić, S., Ahrenkiel, S. P.,& Nedeljković, J. (2019). Sorption of divalent heavy metal ions onto functionalized biogenic hydroxyapatite with caffeic acid and 3,4-dihydroxybenzoic acid.
Journal of Environmental Science and Health, Part A, 54(9), 899-905.
https://doi.org/10.1080/10934529.2019.1606575
Smičiklas ID, Lazić VM, Živković L, Porobić S, Ahrenkiel SP, Nedeljković J. Sorption of divalent heavy metal ions onto functionalized biogenic hydroxyapatite with caffeic acid and 3,4-dihydroxybenzoic acid. Journal of Environmental Science and Health, Part A. 2019;54(9):899-905
Smičiklas Ivana D., Lazić Vesna M., Živković Ljiljana, Porobić Slavica, Ahrenkiel Scott Phillip, Nedeljković Jovan, "Sorption of divalent heavy metal ions onto functionalized biogenic hydroxyapatite with caffeic acid and 3,4-dihydroxybenzoic acid" Journal of Environmental Science and Health, Part A, 54, no. 9 (2019):899-905,
https://doi.org/10.1080/10934529.2019.1606575 .
2
1
3

Visible light absorption of surface-modified Al2O3 powders: A comparative DFT and experimental study

Đorđević, Vesna R.; Sredojević, Dušan; Dostanić, Jasmina; Lončarević, Davor; Ahrenkiel, Scott Phillip; Švrakić, Nenad M.; Brothers, Edward N.; Belić, Milivoj R.; Nedeljković, Jovan

(2019)

TY  - JOUR
AU  - Đorđević, Vesna R.
AU  - Sredojević, Dušan
AU  - Dostanić, Jasmina
AU  - Lončarević, Davor
AU  - Ahrenkiel, Scott Phillip
AU  - Švrakić, Nenad M.
AU  - Brothers, Edward N.
AU  - Belić, Milivoj R.
AU  - Nedeljković, Jovan
PY  - 2019
UR  - https://linkinghub.elsevier.com/retrieve/pii/S1387181118303639
UR  - http://vinar.vin.bg.ac.rs/handle/123456789/7763
AB  - Surface modification of Al2O3 powders, prepared using reproducible sol-gel synthetic route with small colorless organic molecules, induces charge transfer complex formation and the appearance of absorption in the visible spectral region. Comprehensive microstructural characterization involving transmission electron microscopy, X-ray diffraction analysis, and nitrogen adsorption–desorption isotherms, revealed that γ-crystalline alumina powders consist of mesoporous particles in the size range from 0.1 to 0.3 μm, with specific surface area of 54.8 m2/g, and pore radius between 3 and 4 nm. The attachment of catecholate-type of ligands (catechol, caffeic acid, gallic acid, dopamine and 2,3-dihydroxy naphthalene), salicylate-type of ligands (salicylic acid and 5-amino salicylic acid), and ascorbic acid, to the surface such γ-Al2O3 particles leads to the formation of colored powders and activates their absorption in visible-light spectral region. To the best of our knowledge, similar transformation of an insulator (Al2O3), with the band gap energy of 8.7 eV, into a semiconductor-like hybrid material with tunable optical properties has not been reported in the literature before. The density functional theory (DFT) calculations with periodic boundary conditions were performed in order to estimate the energy gaps of various inorganic/organic hybrids. The calculated values compare well with the experimental data. The good agreement between the calculated and experimentally determined band gaps was found, thus demonstrating predictive ability of the theory when proper model is used.
T2  - Microporous and Mesoporous Materials
T1  - Visible light absorption of surface-modified Al2O3 powders: A comparative DFT and experimental study
VL  - 273
SP  - 41
EP  - 49
DO  - 10.1016/j.micromeso.2018.06.053
ER  - 
@article{
author = "Đorđević, Vesna R. and Sredojević, Dušan and Dostanić, Jasmina and Lončarević, Davor and Ahrenkiel, Scott Phillip and Švrakić, Nenad M. and Brothers, Edward N. and Belić, Milivoj R. and Nedeljković, Jovan",
year = "2019",
url = "https://linkinghub.elsevier.com/retrieve/pii/S1387181118303639, http://vinar.vin.bg.ac.rs/handle/123456789/7763",
abstract = "Surface modification of Al2O3 powders, prepared using reproducible sol-gel synthetic route with small colorless organic molecules, induces charge transfer complex formation and the appearance of absorption in the visible spectral region. Comprehensive microstructural characterization involving transmission electron microscopy, X-ray diffraction analysis, and nitrogen adsorption–desorption isotherms, revealed that γ-crystalline alumina powders consist of mesoporous particles in the size range from 0.1 to 0.3 μm, with specific surface area of 54.8 m2/g, and pore radius between 3 and 4 nm. The attachment of catecholate-type of ligands (catechol, caffeic acid, gallic acid, dopamine and 2,3-dihydroxy naphthalene), salicylate-type of ligands (salicylic acid and 5-amino salicylic acid), and ascorbic acid, to the surface such γ-Al2O3 particles leads to the formation of colored powders and activates their absorption in visible-light spectral region. To the best of our knowledge, similar transformation of an insulator (Al2O3), with the band gap energy of 8.7 eV, into a semiconductor-like hybrid material with tunable optical properties has not been reported in the literature before. The density functional theory (DFT) calculations with periodic boundary conditions were performed in order to estimate the energy gaps of various inorganic/organic hybrids. The calculated values compare well with the experimental data. The good agreement between the calculated and experimentally determined band gaps was found, thus demonstrating predictive ability of the theory when proper model is used.",
journal = "Microporous and Mesoporous Materials",
title = "Visible light absorption of surface-modified Al2O3 powders: A comparative DFT and experimental study",
volume = "273",
pages = "41-49",
doi = "10.1016/j.micromeso.2018.06.053"
}
Đorđević, V. R., Sredojević, D., Dostanić, J., Lončarević, D., Ahrenkiel, S. P., Švrakić, N. M., Brothers, E. N., Belić, M. R.,& Nedeljković, J. (2019). Visible light absorption of surface-modified Al2O3 powders: A comparative DFT and experimental study.
Microporous and Mesoporous Materials, 273, 41-49.
https://doi.org/10.1016/j.micromeso.2018.06.053
Đorđević VR, Sredojević D, Dostanić J, Lončarević D, Ahrenkiel SP, Švrakić NM, Brothers EN, Belić MR, Nedeljković J. Visible light absorption of surface-modified Al2O3 powders: A comparative DFT and experimental study. Microporous and Mesoporous Materials. 2019;273:41-49
Đorđević Vesna R., Sredojević Dušan, Dostanić Jasmina, Lončarević Davor, Ahrenkiel Scott Phillip, Švrakić Nenad M., Brothers Edward N., Belić Milivoj R., Nedeljković Jovan, "Visible light absorption of surface-modified Al2O3 powders: A comparative DFT and experimental study" Microporous and Mesoporous Materials, 273 (2019):41-49,
https://doi.org/10.1016/j.micromeso.2018.06.053 .
8
7
7

Antimicrobial activity of silver nanoparticles supported by magnetite

Lazić, Vesna M.; Mihajlovski, Katarina R.; Lazić, Vesna M.; Illés, Erzsébet; Stoiljković, Milovan; Ahrenkiel, Scott Phillip; Nedeljković, Jovan

(2019)

TY  - JOUR
AU  - Lazić, Vesna M.
AU  - Mihajlovski, Katarina R.
AU  - Lazić, Vesna M.
AU  - Illés, Erzsébet
AU  - Stoiljković, Milovan
AU  - Ahrenkiel, Scott Phillip
AU  - Nedeljković, Jovan
PY  - 2019
UR  - https://onlinelibrary.wiley.com/doi/abs/10.1002/slct.201900628
UR  - http://vinar.vin.bg.ac.rs/handle/123456789/8162
AB  - Antibacterial and antifungal ability of silver nanoparticles (Ag NPs) supported by functionalized magnetite (Fe 3 O 4 ) with 5-aminosalicylic acid (5-ASA) was tested against Gram-negative bacteria Escherichia coli, Gram-positive bacteria Staphylococcus aureus and yeast Candida albicans. Characterization of materials including transmission electron microscopy, X-ray diffraction analysis, and inductively coupled plasma optic emission spectroscopy technique followed each step during the course of nanocomposite preparation. The synthesized powder consists of 30–50 nm in size silver particles surrounded by clusters of smaller (∼10 nm) Fe 3 O 4 particles. The content of silver in the nanocomposite powder was found to be slightly above 40 wt.–%. Concentration-dependent and time-dependent bacterial reduction measurements in dark indicated that use of Ag NPs leads to the complete reduction of E. coli and S. aureus even at the concentration level of silver as low as 40 μg/mL. However, the negligible antifungal ability of synthesized nanocomposite was found against yeast C. albicans in the entire investigated concentration range (0.1-2.0 mg/mL of the nanocomposite, i. e., 40–800 μg/mL of silver). Complete inactivation of E. coli and S. aureus was achieved in five repeated cycles indicated that synthesized nanocomposite can perform under long-run working conditions. From the technological point of view, magnetic separation is the additional advantage of synthesized nanocomposite for potential use as an antibacterial agent. © 2019 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim
T2  - ChemistrySelect
T1  - Antimicrobial activity of silver nanoparticles supported by magnetite
VL  - 4
IS  - 14
SP  - 4018
EP  - 4024
DO  - 10.1002/slct.201900628
ER  - 
@article{
author = "Lazić, Vesna M. and Mihajlovski, Katarina R. and Lazić, Vesna M. and Illés, Erzsébet and Stoiljković, Milovan and Ahrenkiel, Scott Phillip and Nedeljković, Jovan",
year = "2019",
url = "https://onlinelibrary.wiley.com/doi/abs/10.1002/slct.201900628, http://vinar.vin.bg.ac.rs/handle/123456789/8162",
abstract = "Antibacterial and antifungal ability of silver nanoparticles (Ag NPs) supported by functionalized magnetite (Fe 3 O 4 ) with 5-aminosalicylic acid (5-ASA) was tested against Gram-negative bacteria Escherichia coli, Gram-positive bacteria Staphylococcus aureus and yeast Candida albicans. Characterization of materials including transmission electron microscopy, X-ray diffraction analysis, and inductively coupled plasma optic emission spectroscopy technique followed each step during the course of nanocomposite preparation. The synthesized powder consists of 30–50 nm in size silver particles surrounded by clusters of smaller (∼10 nm) Fe 3 O 4 particles. The content of silver in the nanocomposite powder was found to be slightly above 40 wt.–%. Concentration-dependent and time-dependent bacterial reduction measurements in dark indicated that use of Ag NPs leads to the complete reduction of E. coli and S. aureus even at the concentration level of silver as low as 40 μg/mL. However, the negligible antifungal ability of synthesized nanocomposite was found against yeast C. albicans in the entire investigated concentration range (0.1-2.0 mg/mL of the nanocomposite, i. e., 40–800 μg/mL of silver). Complete inactivation of E. coli and S. aureus was achieved in five repeated cycles indicated that synthesized nanocomposite can perform under long-run working conditions. From the technological point of view, magnetic separation is the additional advantage of synthesized nanocomposite for potential use as an antibacterial agent. © 2019 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim",
journal = "ChemistrySelect",
title = "Antimicrobial activity of silver nanoparticles supported by magnetite",
volume = "4",
number = "14",
pages = "4018-4024",
doi = "10.1002/slct.201900628"
}
Lazić, V. M., Mihajlovski, K. R., Lazić, V. M., Illés, E., Stoiljković, M., Ahrenkiel, S. P.,& Nedeljković, J. (2019). Antimicrobial activity of silver nanoparticles supported by magnetite.
ChemistrySelect, 4(14), 4018-4024.
https://doi.org/10.1002/slct.201900628
Lazić VM, Mihajlovski KR, Lazić VM, Illés E, Stoiljković M, Ahrenkiel SP, Nedeljković J. Antimicrobial activity of silver nanoparticles supported by magnetite. ChemistrySelect. 2019;4(14):4018-4024
Lazić Vesna M., Mihajlovski Katarina R., Lazić Vesna M., Illés Erzsébet, Stoiljković Milovan, Ahrenkiel Scott Phillip, Nedeljković Jovan, "Antimicrobial activity of silver nanoparticles supported by magnetite" ChemistrySelect, 4, no. 14 (2019):4018-4024,
https://doi.org/10.1002/slct.201900628 .
1
5
4
5

Electronic structure of surface complexes between CeO2 and benzene derivatives: A comparative experimental and DFT study

Prekajski-Đorđević, Marija D.; Vukoje, Ivana D.; Lazić, Vesna M.; Đorđević, Vesna R.; Sredojević, Dušan; Dostanić, Jasmina; Lončarević, Davor; Ahrenkiel, Scott Phillip; Belić, Milivoj R.; Nedeljković, Jovan

(2019)

TY  - JOUR
AU  - Prekajski-Đorđević, Marija D.
AU  - Vukoje, Ivana D.
AU  - Lazić, Vesna M.
AU  - Đorđević, Vesna R.
AU  - Sredojević, Dušan
AU  - Dostanić, Jasmina
AU  - Lončarević, Davor
AU  - Ahrenkiel, Scott Phillip
AU  - Belić, Milivoj R.
AU  - Nedeljković, Jovan
PY  - 2019
UR  - http://vinar.vin.bg.ac.rs/handle/123456789/8387
AB  - Surface modification of CeO2 nano-powder, synthesized by a self-propagating room temperature method with salicylate-type ligands (salicylic acid and 5-aminosalicylic acid) as well as catecholate-type ligands (catechol, 3,4-dihydroxybenzoic acid, caffeic acid and 2,3-dihydroxy naphthalene), induces the appearance of absorption in the visible spectral region due to the interfacial charge transfer (ICT) complex formation. Thorough characterization involving transmission electron microscopy, XRD analysis, and nitrogen adsorption-desorption isotherms, revealed that loosely agglomerated CeO2 particles of the size ranging from 2 to 4 nm have cubic fluorite structure and specific surface area of 140 m2/g. The attachment of salicylate- and catecholate-type of ligands to the surface of CeO2 powders leads to the formation of colored powders with tunable absorption in the visible spectral region. The density functional theory calculations with properly design model systems were performed to estimate the alignment of energy levels of various inorganic/organic hybrids. A reasonably good agreement between calculated values and experimental data was found. © 2019
T2  - Materials Chemistry and Physics
T1  - Electronic structure of surface complexes between CeO2 and benzene derivatives: A comparative experimental and DFT study
VL  - 236
SP  - 121816
DO  - 10.1016/j.matchemphys.2019.121816
ER  - 
@article{
author = "Prekajski-Đorđević, Marija D. and Vukoje, Ivana D. and Lazić, Vesna M. and Đorđević, Vesna R. and Sredojević, Dušan and Dostanić, Jasmina and Lončarević, Davor and Ahrenkiel, Scott Phillip and Belić, Milivoj R. and Nedeljković, Jovan",
year = "2019",
url = "http://vinar.vin.bg.ac.rs/handle/123456789/8387",
abstract = "Surface modification of CeO2 nano-powder, synthesized by a self-propagating room temperature method with salicylate-type ligands (salicylic acid and 5-aminosalicylic acid) as well as catecholate-type ligands (catechol, 3,4-dihydroxybenzoic acid, caffeic acid and 2,3-dihydroxy naphthalene), induces the appearance of absorption in the visible spectral region due to the interfacial charge transfer (ICT) complex formation. Thorough characterization involving transmission electron microscopy, XRD analysis, and nitrogen adsorption-desorption isotherms, revealed that loosely agglomerated CeO2 particles of the size ranging from 2 to 4 nm have cubic fluorite structure and specific surface area of 140 m2/g. The attachment of salicylate- and catecholate-type of ligands to the surface of CeO2 powders leads to the formation of colored powders with tunable absorption in the visible spectral region. The density functional theory calculations with properly design model systems were performed to estimate the alignment of energy levels of various inorganic/organic hybrids. A reasonably good agreement between calculated values and experimental data was found. © 2019",
journal = "Materials Chemistry and Physics",
title = "Electronic structure of surface complexes between CeO2 and benzene derivatives: A comparative experimental and DFT study",
volume = "236",
pages = "121816",
doi = "10.1016/j.matchemphys.2019.121816"
}
Prekajski-Đorđević, M. D., Vukoje, I. D., Lazić, V. M., Đorđević, V. R., Sredojević, D., Dostanić, J., Lončarević, D., Ahrenkiel, S. P., Belić, M. R.,& Nedeljković, J. (2019). Electronic structure of surface complexes between CeO2 and benzene derivatives: A comparative experimental and DFT study.
Materials Chemistry and Physics, 236, 121816.
https://doi.org/10.1016/j.matchemphys.2019.121816
Prekajski-Đorđević MD, Vukoje ID, Lazić VM, Đorđević VR, Sredojević D, Dostanić J, Lončarević D, Ahrenkiel SP, Belić MR, Nedeljković J. Electronic structure of surface complexes between CeO2 and benzene derivatives: A comparative experimental and DFT study. Materials Chemistry and Physics. 2019;236:121816
Prekajski-Đorđević Marija D., Vukoje Ivana D., Lazić Vesna M., Đorđević Vesna R., Sredojević Dušan, Dostanić Jasmina, Lončarević Davor, Ahrenkiel Scott Phillip, Belić Milivoj R., Nedeljković Jovan, "Electronic structure of surface complexes between CeO2 and benzene derivatives: A comparative experimental and DFT study" Materials Chemistry and Physics, 236 (2019):121816,
https://doi.org/10.1016/j.matchemphys.2019.121816 .
3
1
3

Antibacterial ability of supported silver nanoparticles by functionalized hydroxyapatite with 5-aminosalicylic acid

Lazić, Vesna M.; Smičiklas, Ivana D.; Marković, Jelena P.; Lončarević, Davor; Dostanic, Jasmina; Ahrenkiel, Scott Phillip; Nedeljković, Jovan

(2018)

TY  - JOUR
AU  - Lazić, Vesna M.
AU  - Smičiklas, Ivana D.
AU  - Marković, Jelena P.
AU  - Lončarević, Davor
AU  - Dostanic, Jasmina
AU  - Ahrenkiel, Scott Phillip
AU  - Nedeljković, Jovan
PY  - 2018
UR  - http://vinar.vin.bg.ac.rs/handle/123456789/1928
AB  - Antimicrobial performance of silver nanoparticles supported by functionalized hydroxyapatite with 5-aminosalycile acid was tested against Gram-negative bacteria E. coli, Gram-positive bacteria S. aureus and yeast C. albicans. Thorough characterization of materials (electron microscopy, nitrogen adsorption desorption isotherms, diffuse reflectance spectroscopy) followed each step during the course of nanocomposite preparation. Synthesized powder consists of rod-like hydroxyapatite particles (40-60 x 10-20 nm, length x diameter) decorated with nano-sized spherical silver particles whose content in nanocomposite was found to be 1.9 wt.-%. Concentration- and time-dependent bacterial reduction data indicated that use of silver nanoparticles even at concentration as low as 1 mu g mL(-1) lead to complete reduction of both bacteria (E. coli and S. aureus). On the other hand, non-toxic behavior of nanocomposite in broad concentration range (0.05-2.0 mg mL(-1)) was found towards C albicans. Successful inactivation of E. coli and S. aureus in five repeated cycles proved that synthesized nanocomposite can perform under long-run working conditions. (C) 2017 Elsevier Ltd. All rights reserved.
T2  - Vacuum
T1  - Antibacterial ability of supported silver nanoparticles by functionalized hydroxyapatite with 5-aminosalicylic acid
VL  - 148
SP  - 62
EP  - 68
DO  - 10.1016/j.vacuum.2017.10.039
ER  - 
@article{
author = "Lazić, Vesna M. and Smičiklas, Ivana D. and Marković, Jelena P. and Lončarević, Davor and Dostanic, Jasmina and Ahrenkiel, Scott Phillip and Nedeljković, Jovan",
year = "2018",
url = "http://vinar.vin.bg.ac.rs/handle/123456789/1928",
abstract = "Antimicrobial performance of silver nanoparticles supported by functionalized hydroxyapatite with 5-aminosalycile acid was tested against Gram-negative bacteria E. coli, Gram-positive bacteria S. aureus and yeast C. albicans. Thorough characterization of materials (electron microscopy, nitrogen adsorption desorption isotherms, diffuse reflectance spectroscopy) followed each step during the course of nanocomposite preparation. Synthesized powder consists of rod-like hydroxyapatite particles (40-60 x 10-20 nm, length x diameter) decorated with nano-sized spherical silver particles whose content in nanocomposite was found to be 1.9 wt.-%. Concentration- and time-dependent bacterial reduction data indicated that use of silver nanoparticles even at concentration as low as 1 mu g mL(-1) lead to complete reduction of both bacteria (E. coli and S. aureus). On the other hand, non-toxic behavior of nanocomposite in broad concentration range (0.05-2.0 mg mL(-1)) was found towards C albicans. Successful inactivation of E. coli and S. aureus in five repeated cycles proved that synthesized nanocomposite can perform under long-run working conditions. (C) 2017 Elsevier Ltd. All rights reserved.",
journal = "Vacuum",
title = "Antibacterial ability of supported silver nanoparticles by functionalized hydroxyapatite with 5-aminosalicylic acid",
volume = "148",
pages = "62-68",
doi = "10.1016/j.vacuum.2017.10.039"
}
Lazić, V. M., Smičiklas, I. D., Marković, J. P., Lončarević, D., Dostanic, J., Ahrenkiel, S. P.,& Nedeljković, J. (2018). Antibacterial ability of supported silver nanoparticles by functionalized hydroxyapatite with 5-aminosalicylic acid.
Vacuum, 148, 62-68.
https://doi.org/10.1016/j.vacuum.2017.10.039
Lazić VM, Smičiklas ID, Marković JP, Lončarević D, Dostanic J, Ahrenkiel SP, Nedeljković J. Antibacterial ability of supported silver nanoparticles by functionalized hydroxyapatite with 5-aminosalicylic acid. Vacuum. 2018;148:62-68
Lazić Vesna M., Smičiklas Ivana D., Marković Jelena P., Lončarević Davor, Dostanic Jasmina, Ahrenkiel Scott Phillip, Nedeljković Jovan, "Antibacterial ability of supported silver nanoparticles by functionalized hydroxyapatite with 5-aminosalicylic acid" Vacuum, 148 (2018):62-68,
https://doi.org/10.1016/j.vacuum.2017.10.039 .
15
13
14

Properties of Zirconia/Polyaniline hybrid nanocomposites and their application as photocatalysts for degradation of model pollutants

Carević, Milica V.; Abazović, Nadica; Mitrić, Miodrag; Ćirić-Marjanović, Gordana N.; Mojovic, M. D.; Ahrenkiel, Scott Phillip; Čomor, Mirjana

(2018)

TY  - JOUR
AU  - Carević, Milica V.
AU  - Abazović, Nadica
AU  - Mitrić, Miodrag
AU  - Ćirić-Marjanović, Gordana N.
AU  - Mojovic, M. D.
AU  - Ahrenkiel, Scott Phillip
AU  - Čomor, Mirjana
PY  - 2018
UR  - http://vinar.vin.bg.ac.rs/handle/123456789/1947
AB  - A serie of novel ZrO2/Polyaniline (PANI) hybrid nanocomposite powders were successfully synthesized by the oxidative polymerization of aniline with ammonium peroxydisulfate (APS) in water, in the presence of ZrO2 nanoparticles. Syntheses were performed at initial ZrO2/aniline mole ratios 50,100 and 150 to produce ZP-50, ZP-100 and ZP-150. The morphological, structural, and optical properties of the synthesized nano composites were studied using Transmission electron microscopy (TEM), X-ray powder diffraction (XRD), Raman, UV-Vis and Electron-paramagnetic resonance (EPR) spectroscopies. EPR spectra of ZP-50 and ZP-100 nanocomposites showed the presence of intensive peak at the g-values comparable to that for free electrons (2.0023) indicating the presence of oligo/poly (semiquinone radical cations), i.e. polarons as charge carriers in PANI part; ZP-150 showed weak polaron peak of PANI, and peak that can be assigned to defects in zirconia matrix (Zr3+, oxygen vacancies). The monoclinic crystal structure of ZrO2 nanoparticles in all nanocomposites was confirmed by XRD and by Raman spectroscopy. The photocatalytic activities of ZP nanocomposites were evaluated using the photocatalytic degradation of trichlorophenol (TCP) and Rhodamine B model compounds and compared with the activity of bare ZrO2 nanoparticles. Enhanced degradation efficiencies of nanocomposites regarding TCP degradation were observed. (C) 2017 Elsevier B.V. All rights reserved.
T2  - Materials Chemistry and Physics
T1  - Properties of Zirconia/Polyaniline hybrid nanocomposites and their application as photocatalysts for degradation of model pollutants
VL  - 205
SP  - 130
EP  - 137
DO  - 10.1016/j.matchemphys.2017.11.016
ER  - 
@article{
author = "Carević, Milica V. and Abazović, Nadica and Mitrić, Miodrag and Ćirić-Marjanović, Gordana N. and Mojovic, M. D. and Ahrenkiel, Scott Phillip and Čomor, Mirjana",
year = "2018",
url = "http://vinar.vin.bg.ac.rs/handle/123456789/1947",
abstract = "A serie of novel ZrO2/Polyaniline (PANI) hybrid nanocomposite powders were successfully synthesized by the oxidative polymerization of aniline with ammonium peroxydisulfate (APS) in water, in the presence of ZrO2 nanoparticles. Syntheses were performed at initial ZrO2/aniline mole ratios 50,100 and 150 to produce ZP-50, ZP-100 and ZP-150. The morphological, structural, and optical properties of the synthesized nano composites were studied using Transmission electron microscopy (TEM), X-ray powder diffraction (XRD), Raman, UV-Vis and Electron-paramagnetic resonance (EPR) spectroscopies. EPR spectra of ZP-50 and ZP-100 nanocomposites showed the presence of intensive peak at the g-values comparable to that for free electrons (2.0023) indicating the presence of oligo/poly (semiquinone radical cations), i.e. polarons as charge carriers in PANI part; ZP-150 showed weak polaron peak of PANI, and peak that can be assigned to defects in zirconia matrix (Zr3+, oxygen vacancies). The monoclinic crystal structure of ZrO2 nanoparticles in all nanocomposites was confirmed by XRD and by Raman spectroscopy. The photocatalytic activities of ZP nanocomposites were evaluated using the photocatalytic degradation of trichlorophenol (TCP) and Rhodamine B model compounds and compared with the activity of bare ZrO2 nanoparticles. Enhanced degradation efficiencies of nanocomposites regarding TCP degradation were observed. (C) 2017 Elsevier B.V. All rights reserved.",
journal = "Materials Chemistry and Physics",
title = "Properties of Zirconia/Polyaniline hybrid nanocomposites and their application as photocatalysts for degradation of model pollutants",
volume = "205",
pages = "130-137",
doi = "10.1016/j.matchemphys.2017.11.016"
}
Carević, M. V., Abazović, N., Mitrić, M., Ćirić-Marjanović, G. N., Mojovic, M. D., Ahrenkiel, S. P.,& Čomor, M. (2018). Properties of Zirconia/Polyaniline hybrid nanocomposites and their application as photocatalysts for degradation of model pollutants.
Materials Chemistry and Physics, 205, 130-137.
https://doi.org/10.1016/j.matchemphys.2017.11.016
Carević MV, Abazović N, Mitrić M, Ćirić-Marjanović GN, Mojovic MD, Ahrenkiel SP, Čomor M. Properties of Zirconia/Polyaniline hybrid nanocomposites and their application as photocatalysts for degradation of model pollutants. Materials Chemistry and Physics. 2018;205:130-137
Carević Milica V., Abazović Nadica, Mitrić Miodrag, Ćirić-Marjanović Gordana N., Mojovic M. D., Ahrenkiel Scott Phillip, Čomor Mirjana, "Properties of Zirconia/Polyaniline hybrid nanocomposites and their application as photocatalysts for degradation of model pollutants" Materials Chemistry and Physics, 205 (2018):130-137,
https://doi.org/10.1016/j.matchemphys.2017.11.016 .
18
16
19

Charge-transfer complex formation between TiO2 nanoparticles and thiosalicylic acid: A comprehensive experimental and DFT study

Milićević, Bojana R.; Đorđević, Vesna R.; Lončarević, Davor; Dostanic, Jasmina M.; Ahrenkiel, Scott Phillip; Dramićanin, Miroslav; Sredojević, Dušan; Švrakić, Nenad M.; Nedeljković, Jovan

(2017)

TY  - JOUR
AU  - Milićević, Bojana R.
AU  - Đorđević, Vesna R.
AU  - Lončarević, Davor
AU  - Dostanic, Jasmina M.
AU  - Ahrenkiel, Scott Phillip
AU  - Dramićanin, Miroslav
AU  - Sredojević, Dušan
AU  - Švrakić, Nenad M.
AU  - Nedeljković, Jovan
PY  - 2017
UR  - http://vinar.vin.bg.ac.rs/handle/123456789/1815
AB  - Under normal conditions, titanium dioxide does not absorb visible light photons due to large band gap. Nevertheless, when titanium dioxide nanoparticles (TiO2 NPs) are surface-modified with thiosalicylic acid (TSA), their optical properties are altered owing to the formation of charge transfer complex that initiates absorption in the visible spectral range. Colloidal and sol-gel techniques were used to synthesize uniform TiO2 NPs of different sizes (average diameters in the range 4-15 nm), and effects of their subsequent modification by TSA molecules were compared with effect of modification of commercial Degussa TiO2 powder. Thorough microstructural characterization of TiO2 nanoparticulates was performed including transmission electron microscopy (TEM) and X-ray diffraction (XRD) analysis, as well as nitrogen adsorption-desorption isotherms. Optical measurements revealed that all surface-modified TiO2 samples with TSA have similar spectral features independent of their morphological differences, and, more importantly, absorption onset of modified TiO2 samples was found to be red-shifted by 1.0 eV compared to the unmodified ones. The mode of binding between TSA and surface Ti atoms was analyzed by infrared spectroscopy. Finally, the quantum chemical calculations, based on density functional theory, were performed to support optical characterization of surface-modified TiO2 with TSA. (C) 2017 Elsevier B.V. All rights reserved.
T2  - Optical Materials
T1  - Charge-transfer complex formation between TiO2 nanoparticles and thiosalicylic acid: A comprehensive experimental and DFT study
VL  - 73
SP  - 163
EP  - 171
DO  - 10.1016/j.optmat.2017.08.011
ER  - 
@article{
author = "Milićević, Bojana R. and Đorđević, Vesna R. and Lončarević, Davor and Dostanic, Jasmina M. and Ahrenkiel, Scott Phillip and Dramićanin, Miroslav and Sredojević, Dušan and Švrakić, Nenad M. and Nedeljković, Jovan",
year = "2017",
url = "http://vinar.vin.bg.ac.rs/handle/123456789/1815",
abstract = "Under normal conditions, titanium dioxide does not absorb visible light photons due to large band gap. Nevertheless, when titanium dioxide nanoparticles (TiO2 NPs) are surface-modified with thiosalicylic acid (TSA), their optical properties are altered owing to the formation of charge transfer complex that initiates absorption in the visible spectral range. Colloidal and sol-gel techniques were used to synthesize uniform TiO2 NPs of different sizes (average diameters in the range 4-15 nm), and effects of their subsequent modification by TSA molecules were compared with effect of modification of commercial Degussa TiO2 powder. Thorough microstructural characterization of TiO2 nanoparticulates was performed including transmission electron microscopy (TEM) and X-ray diffraction (XRD) analysis, as well as nitrogen adsorption-desorption isotherms. Optical measurements revealed that all surface-modified TiO2 samples with TSA have similar spectral features independent of their morphological differences, and, more importantly, absorption onset of modified TiO2 samples was found to be red-shifted by 1.0 eV compared to the unmodified ones. The mode of binding between TSA and surface Ti atoms was analyzed by infrared spectroscopy. Finally, the quantum chemical calculations, based on density functional theory, were performed to support optical characterization of surface-modified TiO2 with TSA. (C) 2017 Elsevier B.V. All rights reserved.",
journal = "Optical Materials",
title = "Charge-transfer complex formation between TiO2 nanoparticles and thiosalicylic acid: A comprehensive experimental and DFT study",
volume = "73",
pages = "163-171",
doi = "10.1016/j.optmat.2017.08.011"
}
Milićević, B. R., Đorđević, V. R., Lončarević, D., Dostanic, J. M., Ahrenkiel, S. P., Dramićanin, M., Sredojević, D., Švrakić, N. M.,& Nedeljković, J. (2017). Charge-transfer complex formation between TiO2 nanoparticles and thiosalicylic acid: A comprehensive experimental and DFT study.
Optical Materials, 73, 163-171.
https://doi.org/10.1016/j.optmat.2017.08.011
Milićević BR, Đorđević VR, Lončarević D, Dostanic JM, Ahrenkiel SP, Dramićanin M, Sredojević D, Švrakić NM, Nedeljković J. Charge-transfer complex formation between TiO2 nanoparticles and thiosalicylic acid: A comprehensive experimental and DFT study. Optical Materials. 2017;73:163-171
Milićević Bojana R., Đorđević Vesna R., Lončarević Davor, Dostanic Jasmina M., Ahrenkiel Scott Phillip, Dramićanin Miroslav, Sredojević Dušan, Švrakić Nenad M., Nedeljković Jovan, "Charge-transfer complex formation between TiO2 nanoparticles and thiosalicylic acid: A comprehensive experimental and DFT study" Optical Materials, 73 (2017):163-171,
https://doi.org/10.1016/j.optmat.2017.08.011 .
6
7
8

Functionalized biogenic hydroxyapatite with 5-aminosalicylic acid - Sorbent for efficient separation of Pb2+ and Cu2+ ions

Smičiklas, Ivana D.; Papan, Jelena; Lazić, Vesna M.; Lončarević, Davor; Ahrenkiel, Scott Phillip; Nedeljković, Jovan

(2017)

TY  - JOUR
AU  - Smičiklas, Ivana D.
AU  - Papan, Jelena
AU  - Lazić, Vesna M.
AU  - Lončarević, Davor
AU  - Ahrenkiel, Scott Phillip
AU  - Nedeljković, Jovan
PY  - 2017
UR  - http://vinar.vin.bg.ac.rs/handle/123456789/1732
AB  - The biogenic hydroxyapatite (BHAP), obtained by proper treatment of bovine bones, was functionalized with 5-aminosalicylic acid (5-ASA). The coordination of 5-ASA to the surface of BHAP leads to the charge transfer (CT) complex formation accompanied with absorption in visible spectral range. The sorption ability of surface-modified BHAP with 5-ASA (5-ASA/BHAP) for removal of Pb2+ and Cu2+ ions from single-and bi-component solutions was compared with unmodified BHAP. The thorough characterization of both sorbents, BHAP and 5-ASA/BHAP, was performed including X-ray diffraction analysis (XRD), transmission electron microscopy (TEM), nitrogen adsorption-desorption isotherms, as well as diffuse reflection spectroscopy. Sorption kinetics and equilibriums for both ions (Pb2+ and Cu2+) by as-prepared BHAP and 5-ASA/BHAP are quite different. Functionalized sorbent demonstrated faster sorption kinetic and higher maximum sorption capacity for Pb2+ ions from bi-component solutions. From equimolar Pb2+ and Cu2+ mixture with a total concentration of 10-2 mol/L, 66% of Pb2+ was recovered using BHAP, while 97% using 5-ASA/BHAP. These preliminary data indicate potential applicability of properly functionalized hydroxyapatite for selective removal of heavy metal ions from contaminated water.
T2  - Journal of Environmental Chemical Engineering
T1  - Functionalized biogenic hydroxyapatite with 5-aminosalicylic acid - Sorbent for efficient separation of Pb2+ and Cu2+ ions
VL  - 5
IS  - 4
SP  - 3759
EP  - 3765
DO  - 10.1016/j.jece.2017.07.027
ER  - 
@article{
author = "Smičiklas, Ivana D. and Papan, Jelena and Lazić, Vesna M. and Lončarević, Davor and Ahrenkiel, Scott Phillip and Nedeljković, Jovan",
year = "2017",
url = "http://vinar.vin.bg.ac.rs/handle/123456789/1732",
abstract = "The biogenic hydroxyapatite (BHAP), obtained by proper treatment of bovine bones, was functionalized with 5-aminosalicylic acid (5-ASA). The coordination of 5-ASA to the surface of BHAP leads to the charge transfer (CT) complex formation accompanied with absorption in visible spectral range. The sorption ability of surface-modified BHAP with 5-ASA (5-ASA/BHAP) for removal of Pb2+ and Cu2+ ions from single-and bi-component solutions was compared with unmodified BHAP. The thorough characterization of both sorbents, BHAP and 5-ASA/BHAP, was performed including X-ray diffraction analysis (XRD), transmission electron microscopy (TEM), nitrogen adsorption-desorption isotherms, as well as diffuse reflection spectroscopy. Sorption kinetics and equilibriums for both ions (Pb2+ and Cu2+) by as-prepared BHAP and 5-ASA/BHAP are quite different. Functionalized sorbent demonstrated faster sorption kinetic and higher maximum sorption capacity for Pb2+ ions from bi-component solutions. From equimolar Pb2+ and Cu2+ mixture with a total concentration of 10-2 mol/L, 66% of Pb2+ was recovered using BHAP, while 97% using 5-ASA/BHAP. These preliminary data indicate potential applicability of properly functionalized hydroxyapatite for selective removal of heavy metal ions from contaminated water.",
journal = "Journal of Environmental Chemical Engineering",
title = "Functionalized biogenic hydroxyapatite with 5-aminosalicylic acid - Sorbent for efficient separation of Pb2+ and Cu2+ ions",
volume = "5",
number = "4",
pages = "3759-3765",
doi = "10.1016/j.jece.2017.07.027"
}
Smičiklas, I. D., Papan, J., Lazić, V. M., Lončarević, D., Ahrenkiel, S. P.,& Nedeljković, J. (2017). Functionalized biogenic hydroxyapatite with 5-aminosalicylic acid - Sorbent for efficient separation of Pb2+ and Cu2+ ions.
Journal of Environmental Chemical Engineering, 5(4), 3759-3765.
https://doi.org/10.1016/j.jece.2017.07.027
Smičiklas ID, Papan J, Lazić VM, Lončarević D, Ahrenkiel SP, Nedeljković J. Functionalized biogenic hydroxyapatite with 5-aminosalicylic acid - Sorbent for efficient separation of Pb2+ and Cu2+ ions. Journal of Environmental Chemical Engineering. 2017;5(4):3759-3765
Smičiklas Ivana D., Papan Jelena, Lazić Vesna M., Lončarević Davor, Ahrenkiel Scott Phillip, Nedeljković Jovan, "Functionalized biogenic hydroxyapatite with 5-aminosalicylic acid - Sorbent for efficient separation of Pb2+ and Cu2+ ions" Journal of Environmental Chemical Engineering, 5, no. 4 (2017):3759-3765,
https://doi.org/10.1016/j.jece.2017.07.027 .
8
5
7

Hybrid visible-light responsive Al2O3 particles

Đorđević, Vesna R.; Dostanic, Jasmina; Lončarević, Davor; Ahrenkiel, Scott Phillip; Sredojević, Dušan; Švrakić, Nenad M.; Belić, Milivoj R.; Nedeljković, Jovan

(2017)

TY  - JOUR
AU  - Đorđević, Vesna R.
AU  - Dostanic, Jasmina
AU  - Lončarević, Davor
AU  - Ahrenkiel, Scott Phillip
AU  - Sredojević, Dušan
AU  - Švrakić, Nenad M.
AU  - Belić, Milivoj R.
AU  - Nedeljković, Jovan
PY  - 2017
UR  - http://vinar.vin.bg.ac.rs/handle/123456789/1723
AB  - Detailed study of Al2O3, an insulator with the band gap of about 8.7 eV, and its different organic/inorganic charge transfer complexes with visible-light photo activity is presented. In particular, prepared Al2O3 particles of the size 0.1-0.3 mu m are coated with several organic complexes - the specific details for catecholate- and salicylate-type of ligands are described below - and the light absorption properties and photocatalytic activity of such hybrids are scrutinized and compared with those of other organic/inorganic hybrid materials previously studied. In addition, the obtained experimental results are supported with quantum chemical calculations based on density functional theory. (C) 2017 Elsevier B.V. All rights reserved.
T2  - Chemical Physics Letters
T1  - Hybrid visible-light responsive Al2O3 particles
VL  - 685
SP  - 416
EP  - 421
DO  - 10.1016/j.cplett.2017.08.012
ER  - 
@article{
author = "Đorđević, Vesna R. and Dostanic, Jasmina and Lončarević, Davor and Ahrenkiel, Scott Phillip and Sredojević, Dušan and Švrakić, Nenad M. and Belić, Milivoj R. and Nedeljković, Jovan",
year = "2017",
url = "http://vinar.vin.bg.ac.rs/handle/123456789/1723",
abstract = "Detailed study of Al2O3, an insulator with the band gap of about 8.7 eV, and its different organic/inorganic charge transfer complexes with visible-light photo activity is presented. In particular, prepared Al2O3 particles of the size 0.1-0.3 mu m are coated with several organic complexes - the specific details for catecholate- and salicylate-type of ligands are described below - and the light absorption properties and photocatalytic activity of such hybrids are scrutinized and compared with those of other organic/inorganic hybrid materials previously studied. In addition, the obtained experimental results are supported with quantum chemical calculations based on density functional theory. (C) 2017 Elsevier B.V. All rights reserved.",
journal = "Chemical Physics Letters",
title = "Hybrid visible-light responsive Al2O3 particles",
volume = "685",
pages = "416-421",
doi = "10.1016/j.cplett.2017.08.012"
}
Đorđević, V. R., Dostanic, J., Lončarević, D., Ahrenkiel, S. P., Sredojević, D., Švrakić, N. M., Belić, M. R.,& Nedeljković, J. (2017). Hybrid visible-light responsive Al2O3 particles.
Chemical Physics Letters, 685, 416-421.
https://doi.org/10.1016/j.cplett.2017.08.012
Đorđević VR, Dostanic J, Lončarević D, Ahrenkiel SP, Sredojević D, Švrakić NM, Belić MR, Nedeljković J. Hybrid visible-light responsive Al2O3 particles. Chemical Physics Letters. 2017;685:416-421
Đorđević Vesna R., Dostanic Jasmina, Lončarević Davor, Ahrenkiel Scott Phillip, Sredojević Dušan, Švrakić Nenad M., Belić Milivoj R., Nedeljković Jovan, "Hybrid visible-light responsive Al2O3 particles" Chemical Physics Letters, 685 (2017):416-421,
https://doi.org/10.1016/j.cplett.2017.08.012 .
10
8
9

The photocatalytic performance of silver halides - Silver carbonate heterostructures

Dostanic, Jasmina; Lončarević, Davor; Đorđević, Vesna R.; Ahrenkiel, Scott Phillip; Nedeljković, Jovan

(2017)

TY  - JOUR
AU  - Dostanic, Jasmina
AU  - Lončarević, Davor
AU  - Đorđević, Vesna R.
AU  - Ahrenkiel, Scott Phillip
AU  - Nedeljković, Jovan
PY  - 2017
UR  - http://vinar.vin.bg.ac.rs/handle/123456789/1425
AB  - The synthesized rod-like Ag2CO3 particles (2-4 x 0.3-0.6 mu m, length x diameter) served as a precursor for preparation of the AgX/Ag2CO3 (X = CI, I) composites by ion exchange method. The various microstructural (X-ray diffraction analysis, transmission electron microscopy, nitrogen adsorption desorption isotherms) and optical (diffuse reflection spectroscopy) techniques were used for thorough characterization of obtained heterostructures. The enhanced photocatalytic performance of AgX/Ag2CO3 heterostructures in comparison to Ag2CO3 nanorods (NRs) was evidenced using degradation of organic dye methylene blue as a test reaction. Also, the formation of composites improved their stability under long run illumination conditions. The effect of AgX content on photocatalytic activity of the composites were also investigated. The possible photocatalytic mechanism that facilitates efficient separation of photo-formed charge carriers in heterostructures was discussed in terms of the relative energetic of valence and conduction bands. (C) 2016 Elsevier B.V. All rights reserved.
T2  - Journal of Photochemistry and Photobiology. A: Chemistry
T1  - The photocatalytic performance of silver halides - Silver carbonate heterostructures
VL  - 336
SP  - 1
EP  - 7
DO  - 10.1016/j.jphotochem.2016.12.019
ER  - 
@article{
author = "Dostanic, Jasmina and Lončarević, Davor and Đorđević, Vesna R. and Ahrenkiel, Scott Phillip and Nedeljković, Jovan",
year = "2017",
url = "http://vinar.vin.bg.ac.rs/handle/123456789/1425",
abstract = "The synthesized rod-like Ag2CO3 particles (2-4 x 0.3-0.6 mu m, length x diameter) served as a precursor for preparation of the AgX/Ag2CO3 (X = CI, I) composites by ion exchange method. The various microstructural (X-ray diffraction analysis, transmission electron microscopy, nitrogen adsorption desorption isotherms) and optical (diffuse reflection spectroscopy) techniques were used for thorough characterization of obtained heterostructures. The enhanced photocatalytic performance of AgX/Ag2CO3 heterostructures in comparison to Ag2CO3 nanorods (NRs) was evidenced using degradation of organic dye methylene blue as a test reaction. Also, the formation of composites improved their stability under long run illumination conditions. The effect of AgX content on photocatalytic activity of the composites were also investigated. The possible photocatalytic mechanism that facilitates efficient separation of photo-formed charge carriers in heterostructures was discussed in terms of the relative energetic of valence and conduction bands. (C) 2016 Elsevier B.V. All rights reserved.",
journal = "Journal of Photochemistry and Photobiology. A: Chemistry",
title = "The photocatalytic performance of silver halides - Silver carbonate heterostructures",
volume = "336",
pages = "1-7",
doi = "10.1016/j.jphotochem.2016.12.019"
}
Dostanic, J., Lončarević, D., Đorđević, V. R., Ahrenkiel, S. P.,& Nedeljković, J. (2017). The photocatalytic performance of silver halides - Silver carbonate heterostructures.
Journal of Photochemistry and Photobiology. A: Chemistry, 336, 1-7.
https://doi.org/10.1016/j.jphotochem.2016.12.019
Dostanic J, Lončarević D, Đorđević VR, Ahrenkiel SP, Nedeljković J. The photocatalytic performance of silver halides - Silver carbonate heterostructures. Journal of Photochemistry and Photobiology. A: Chemistry. 2017;336:1-7
Dostanic Jasmina, Lončarević Davor, Đorđević Vesna R., Ahrenkiel Scott Phillip, Nedeljković Jovan, "The photocatalytic performance of silver halides - Silver carbonate heterostructures" Journal of Photochemistry and Photobiology. A: Chemistry, 336 (2017):1-7,
https://doi.org/10.1016/j.jphotochem.2016.12.019 .
5
4
3
4

Synthesis, Characterization, and Antimicrobial Activity of Silver Nanoparticles on Poly(GMA-co-EGDMA) Polymer Support

Vukoje, Ivana D.; Džunuzović, Enis S.; Lončarević, Davor; Dimitrijević, Suzana I.; Ahrenkiel, Scott Phillip; Nedeljković, Jovan

(2017)

TY  - JOUR
AU  - Vukoje, Ivana D.
AU  - Džunuzović, Enis S.
AU  - Lončarević, Davor
AU  - Dimitrijević, Suzana I.
AU  - Ahrenkiel, Scott Phillip
AU  - Nedeljković, Jovan
PY  - 2017
UR  - http://vinar.vin.bg.ac.rs/handle/123456789/1361
AB  - Poly(glycidyl methacrylate-co-ethylene glycol dimethacrylate) (poly(GMA-co-EGDMA) macroporous copolymer decorated with silver nanoparticles was prepared by a modification of poly(GMA-co-EGDMA) in the reaction with arginine, and consequent reduction of silver ions with amino groups. The mercury intrusion porosimetry, transmission electron microscopy, X-ray diffraction, UV-vis reflection spectroscopy, and inductively coupled plasma atomic emission measurements were used to characterize obtained composite. The coordination of silver nanoparticles to the poly(GMA-co-EGDMA) copolymer was studied using infrared spectroscopy. Time dependence and concentration dependence of the antimicrobial efficiency of composite were tested against Gram-negative bacteria Escherichia coli, Gram-positive bacteria Staphylococcus aureus, and fungus Candida albicans. The composite ensured maximum reduction of both bacteria, while the fungi reduction reached satisfactory 96.8%. Preliminary antimicrobial efficiency measurements using laboratory flow setup indicated potential applicability of composite for wastewater treatment. (C) 2015 Society of Plastics Engineers
T2  - Polymer Composites
T1  - Synthesis, Characterization, and Antimicrobial Activity of Silver Nanoparticles on Poly(GMA-co-EGDMA) Polymer Support
VL  - 38
IS  - 6
SP  - 1206
EP  - 1214
DO  - 10.1002/pc.23684
ER  - 
@article{
author = "Vukoje, Ivana D. and Džunuzović, Enis S. and Lončarević, Davor and Dimitrijević, Suzana I. and Ahrenkiel, Scott Phillip and Nedeljković, Jovan",
year = "2017",
url = "http://vinar.vin.bg.ac.rs/handle/123456789/1361",
abstract = "Poly(glycidyl methacrylate-co-ethylene glycol dimethacrylate) (poly(GMA-co-EGDMA) macroporous copolymer decorated with silver nanoparticles was prepared by a modification of poly(GMA-co-EGDMA) in the reaction with arginine, and consequent reduction of silver ions with amino groups. The mercury intrusion porosimetry, transmission electron microscopy, X-ray diffraction, UV-vis reflection spectroscopy, and inductively coupled plasma atomic emission measurements were used to characterize obtained composite. The coordination of silver nanoparticles to the poly(GMA-co-EGDMA) copolymer was studied using infrared spectroscopy. Time dependence and concentration dependence of the antimicrobial efficiency of composite were tested against Gram-negative bacteria Escherichia coli, Gram-positive bacteria Staphylococcus aureus, and fungus Candida albicans. The composite ensured maximum reduction of both bacteria, while the fungi reduction reached satisfactory 96.8%. Preliminary antimicrobial efficiency measurements using laboratory flow setup indicated potential applicability of composite for wastewater treatment. (C) 2015 Society of Plastics Engineers",
journal = "Polymer Composites",
title = "Synthesis, Characterization, and Antimicrobial Activity of Silver Nanoparticles on Poly(GMA-co-EGDMA) Polymer Support",
volume = "38",
number = "6",
pages = "1206-1214",
doi = "10.1002/pc.23684"
}
Vukoje, I. D., Džunuzović, E. S., Lončarević, D., Dimitrijević, S. I., Ahrenkiel, S. P.,& Nedeljković, J. (2017). Synthesis, Characterization, and Antimicrobial Activity of Silver Nanoparticles on Poly(GMA-co-EGDMA) Polymer Support.
Polymer Composites, 38(6), 1206-1214.
https://doi.org/10.1002/pc.23684
Vukoje ID, Džunuzović ES, Lončarević D, Dimitrijević SI, Ahrenkiel SP, Nedeljković J. Synthesis, Characterization, and Antimicrobial Activity of Silver Nanoparticles on Poly(GMA-co-EGDMA) Polymer Support. Polymer Composites. 2017;38(6):1206-1214
Vukoje Ivana D., Džunuzović Enis S., Lončarević Davor, Dimitrijević Suzana I., Ahrenkiel Scott Phillip, Nedeljković Jovan, "Synthesis, Characterization, and Antimicrobial Activity of Silver Nanoparticles on Poly(GMA-co-EGDMA) Polymer Support" Polymer Composites, 38, no. 6 (2017):1206-1214,
https://doi.org/10.1002/pc.23684 .
14
12
14

Detailed study of structural and luminescent properties of Y2-xEuxZr2O7 (0 LT = x LT = 1) nanophosphors

Papan, Jelena; Vukovic, Katarina; Ahrenkiel, Scott Phillip; Jovanović, Dragana J.; Dramićanin, Miroslav

(2017)

TY  - JOUR
AU  - Papan, Jelena
AU  - Vukovic, Katarina
AU  - Ahrenkiel, Scott Phillip
AU  - Jovanović, Dragana J.
AU  - Dramićanin, Miroslav
PY  - 2017
UR  - http://vinar.vin.bg.ac.rs/handle/123456789/1586
AB  - Nanocrystalline Y2-xEuxZr2O7 (0 LT = x LT = 1) phosphor particles were prepared by polymer facilitated combustion and subsequent calcination at 800 degrees C. The thorough study of Eu-concentration influence on particles structure, morphology and luminescence is presented. This type of synthesis provides particles of similar to 5 nm in diameter, which crystallize in a defect fluorite structure (space group Fm-3m), and where each particle consists of a single crystallite, as revealed by X-ray diffraction and high-resolution transmission electron microscopy. With the increase of Eu concentration, the unit-cell parameter slightly increases to accommodate larger Eu3+ ions at sites of smaller Y3+, while the shape and size of particles remain the same. Analysis of emission intensity and decay dependence on Eu concentration showed that this host material could be heavily doped with Eu since concentration quenching of emission occurs at high Eu content of 25-30 at.% (with respect to Y ions). The critical distance for energy transfer between Eu ions is estimated to 10.28 A and dipole-quadrupole interaction is found as the dominant mechanism responsible for the concentration quenching of emission. Radiative and non-radiative transition rates, the quantum efficiency of emission, Omega-intensity parameters, and branching ratios of Eu3+ emission are calculated for nanocrystals of all doping concentrations. It is found that more to-the-point expression 86% of emission comes from D-5(0) - GT F-7(2) and D-5(0) - GT F-7(1) transitions. Therefore, this phosphor emits pure red light with (0.661, 0.338) CIE color coordinates. (C) 2017 Elsevier B.V. All rights reserved.
T2  - Journal of Alloys and Compounds
T1  - Detailed study of structural and luminescent properties of Y2-xEuxZr2O7 (0 LT = x LT = 1) nanophosphors
VL  - 712
SP  - 437
EP  - 444
DO  - 10.1016/j.jallcom.2017.04.139
ER  - 
@article{
author = "Papan, Jelena and Vukovic, Katarina and Ahrenkiel, Scott Phillip and Jovanović, Dragana J. and Dramićanin, Miroslav",
year = "2017",
url = "http://vinar.vin.bg.ac.rs/handle/123456789/1586",
abstract = "Nanocrystalline Y2-xEuxZr2O7 (0 LT = x LT = 1) phosphor particles were prepared by polymer facilitated combustion and subsequent calcination at 800 degrees C. The thorough study of Eu-concentration influence on particles structure, morphology and luminescence is presented. This type of synthesis provides particles of similar to 5 nm in diameter, which crystallize in a defect fluorite structure (space group Fm-3m), and where each particle consists of a single crystallite, as revealed by X-ray diffraction and high-resolution transmission electron microscopy. With the increase of Eu concentration, the unit-cell parameter slightly increases to accommodate larger Eu3+ ions at sites of smaller Y3+, while the shape and size of particles remain the same. Analysis of emission intensity and decay dependence on Eu concentration showed that this host material could be heavily doped with Eu since concentration quenching of emission occurs at high Eu content of 25-30 at.% (with respect to Y ions). The critical distance for energy transfer between Eu ions is estimated to 10.28 A and dipole-quadrupole interaction is found as the dominant mechanism responsible for the concentration quenching of emission. Radiative and non-radiative transition rates, the quantum efficiency of emission, Omega-intensity parameters, and branching ratios of Eu3+ emission are calculated for nanocrystals of all doping concentrations. It is found that more to-the-point expression 86% of emission comes from D-5(0) - GT F-7(2) and D-5(0) - GT F-7(1) transitions. Therefore, this phosphor emits pure red light with (0.661, 0.338) CIE color coordinates. (C) 2017 Elsevier B.V. All rights reserved.",
journal = "Journal of Alloys and Compounds",
title = "Detailed study of structural and luminescent properties of Y2-xEuxZr2O7 (0 LT = x LT = 1) nanophosphors",
volume = "712",
pages = "437-444",
doi = "10.1016/j.jallcom.2017.04.139"
}
Papan, J., Vukovic, K., Ahrenkiel, S. P., Jovanović, D. J.,& Dramićanin, M. (2017). Detailed study of structural and luminescent properties of Y2-xEuxZr2O7 (0 LT = x LT = 1) nanophosphors.
Journal of Alloys and Compounds, 712, 437-444.
https://doi.org/10.1016/j.jallcom.2017.04.139
Papan J, Vukovic K, Ahrenkiel SP, Jovanović DJ, Dramićanin M. Detailed study of structural and luminescent properties of Y2-xEuxZr2O7 (0 LT = x LT = 1) nanophosphors. Journal of Alloys and Compounds. 2017;712:437-444
Papan Jelena, Vukovic Katarina, Ahrenkiel Scott Phillip, Jovanović Dragana J., Dramićanin Miroslav, "Detailed study of structural and luminescent properties of Y2-xEuxZr2O7 (0 LT = x LT = 1) nanophosphors" Journal of Alloys and Compounds, 712 (2017):437-444,
https://doi.org/10.1016/j.jallcom.2017.04.139 .
5
5
5

Formation of ZnIn2S4 nanosheets and tubular structures in organic media

Carević, Milica V.; Savić, Tatjana D.; Abazović, Nadica; Mitrić, Miodrag; Stojanović, Zoran A.; Ahrenkiel, Scott Phillip; Čomor, Mirjana

(2017)

TY  - JOUR
AU  - Carević, Milica V.
AU  - Savić, Tatjana D.
AU  - Abazović, Nadica
AU  - Mitrić, Miodrag
AU  - Stojanović, Zoran A.
AU  - Ahrenkiel, Scott Phillip
AU  - Čomor, Mirjana
PY  - 2017
UR  - http://vinar.vin.bg.ac.rs/handle/123456789/1397
AB  - Hot-injection method for synthesis of ZnIn2S4 (ZIS) in organic media was studied. Nanosized ZnIn2S4 is successfully synthesized in oleic acid/oleylamine mixture in different ratios, which are both: complexing and/or capping agents. Nanosheets/nanoscrolls of about 50 nm are obtained. The band gaps of synthesized nanostructures were calculated to be in the range from 2.6 to 3.0 eV, values which are increased compared to bulk value (2.3-2.5 eV). The increase of band gap can be assigned to nanodimensions of the particles. Potential of band edges is calculated using empirical equation and find to be in the range from -0.16 to -0.36 V for conduction band, and from 2.24 to 2.69 V for valence band. By using XRD and TEM techniques, crystal structure and morphology of obtained materials were investigated, and detailed formation and growth mechanism of nanosheets/nanoscroles is proposed accordingly. (C) 2016 Elsevier Ltd. All rights reserved.
T2  - Materials Research Bulletin
T1  - Formation of ZnIn2S4 nanosheets and tubular structures in organic media
VL  - 87
SP  - 140
EP  - 147
DO  - 10.1016/j.materresbull.2016.11.037
ER  - 
@article{
author = "Carević, Milica V. and Savić, Tatjana D. and Abazović, Nadica and Mitrić, Miodrag and Stojanović, Zoran A. and Ahrenkiel, Scott Phillip and Čomor, Mirjana",
year = "2017",
url = "http://vinar.vin.bg.ac.rs/handle/123456789/1397",
abstract = "Hot-injection method for synthesis of ZnIn2S4 (ZIS) in organic media was studied. Nanosized ZnIn2S4 is successfully synthesized in oleic acid/oleylamine mixture in different ratios, which are both: complexing and/or capping agents. Nanosheets/nanoscrolls of about 50 nm are obtained. The band gaps of synthesized nanostructures were calculated to be in the range from 2.6 to 3.0 eV, values which are increased compared to bulk value (2.3-2.5 eV). The increase of band gap can be assigned to nanodimensions of the particles. Potential of band edges is calculated using empirical equation and find to be in the range from -0.16 to -0.36 V for conduction band, and from 2.24 to 2.69 V for valence band. By using XRD and TEM techniques, crystal structure and morphology of obtained materials were investigated, and detailed formation and growth mechanism of nanosheets/nanoscroles is proposed accordingly. (C) 2016 Elsevier Ltd. All rights reserved.",
journal = "Materials Research Bulletin",
title = "Formation of ZnIn2S4 nanosheets and tubular structures in organic media",
volume = "87",
pages = "140-147",
doi = "10.1016/j.materresbull.2016.11.037"
}
Carević, M. V., Savić, T. D., Abazović, N., Mitrić, M., Stojanović, Z. A., Ahrenkiel, S. P.,& Čomor, M. (2017). Formation of ZnIn2S4 nanosheets and tubular structures in organic media.
Materials Research Bulletin, 87, 140-147.
https://doi.org/10.1016/j.materresbull.2016.11.037
Carević MV, Savić TD, Abazović N, Mitrić M, Stojanović ZA, Ahrenkiel SP, Čomor M. Formation of ZnIn2S4 nanosheets and tubular structures in organic media. Materials Research Bulletin. 2017;87:140-147
Carević Milica V., Savić Tatjana D., Abazović Nadica, Mitrić Miodrag, Stojanović Zoran A., Ahrenkiel Scott Phillip, Čomor Mirjana, "Formation of ZnIn2S4 nanosheets and tubular structures in organic media" Materials Research Bulletin, 87 (2017):140-147,
https://doi.org/10.1016/j.materresbull.2016.11.037 .
1
5
4
6

Superior photocatalytic properties of carbonized PANI/TiO2 nanocomposites

Radoičić, Marija B.; Ćirić-Marjanović, Gordana N.; Spasojević, Vuk D.; Ahrenkiel, Scott Phillip; Mitrić, Miodrag; Novaković, Tatjana B.; Šaponjić, Zoran

(2017)

TY  - JOUR
AU  - Radoičić, Marija B.
AU  - Ćirić-Marjanović, Gordana N.
AU  - Spasojević, Vuk D.
AU  - Ahrenkiel, Scott Phillip
AU  - Mitrić, Miodrag
AU  - Novaković, Tatjana B.
AU  - Šaponjić, Zoran
PY  - 2017
UR  - http://vinar.vin.bg.ac.rs/handle/123456789/1597
AB  - A simple bottom-up method for the preparation of novel and very efficient photocatalytic nanocomposite system based on carbonized form of polyaniline (PANI) and colloidal TiO2 nanocrystals has been developed. The carbonized PANI/TiO2 nanocomposites were synthesized in a two-step procedure. Firstly, non-carbonized PANI/TiO2 nanocomposites were synthesized by the chemical oxidative polymerization of aniline (ANI) with ammonium peroxydisulfate, in the presence of colloidal TiO2 nanoparticles (TiO2 NPs) (d 4.5 nm). Initial [TiO2 NANI] mole ratios were 20, 50, and 80. In the second step, following the polymerization process, the carbonization of PANI/TiO2 nanocomposites was performed by thermal treatment in an inert atmosphere at 650 degrees C. The morphological and structural properties of the carbonized nanocomposites were studied using transmission electron microscopy (TEM), scanning electron microscopy (SEM), X-ray powder diffraction (XRD) and Raman spectroscopy. The accomplishment of complete carbonization of PANI in PANI/TiO2 nanocomposites was confirmed by Raman spectroscopy. The appearance of anatase and rutile crystal forms in TiO2 NPs upon carbonization, with mass ratio depending on the initial molar ratio of ANI and TiO2 NPs was revealed by XRD measurements, TEM, SEM and Raman spectroscopy. The photocatalytic activities of carbonized PANI/TiO2 nanocomposites were evaluated following the photocatalytic degradation processes of Rhodamine B and Methylene blue. Carbonized PANI/TiO2 nanocomposites showed higher photocatalytic efficacy compared to bare TiO2 NPs and non-carbonized PANI/TiO2 nanocomposites. The porosity and surface structure of carbonized PANI/TiO2 nanocomposites, as well as crystalline structure of TiO2, affect photocatalytic activity of nanocomposites. (C) 2017 Elsevier B.V. All rights reserved.
T2  - Applied Catalysis. B: Environmental
T1  - Superior photocatalytic properties of carbonized PANI/TiO2 nanocomposites
VL  - 213
SP  - 155
EP  - 166
DO  - 10.1016/j.apcatb.2017.05.023
ER  - 
@article{
author = "Radoičić, Marija B. and Ćirić-Marjanović, Gordana N. and Spasojević, Vuk D. and Ahrenkiel, Scott Phillip and Mitrić, Miodrag and Novaković, Tatjana B. and Šaponjić, Zoran",
year = "2017",
url = "http://vinar.vin.bg.ac.rs/handle/123456789/1597",
abstract = "A simple bottom-up method for the preparation of novel and very efficient photocatalytic nanocomposite system based on carbonized form of polyaniline (PANI) and colloidal TiO2 nanocrystals has been developed. The carbonized PANI/TiO2 nanocomposites were synthesized in a two-step procedure. Firstly, non-carbonized PANI/TiO2 nanocomposites were synthesized by the chemical oxidative polymerization of aniline (ANI) with ammonium peroxydisulfate, in the presence of colloidal TiO2 nanoparticles (TiO2 NPs) (d 4.5 nm). Initial [TiO2 NANI] mole ratios were 20, 50, and 80. In the second step, following the polymerization process, the carbonization of PANI/TiO2 nanocomposites was performed by thermal treatment in an inert atmosphere at 650 degrees C. The morphological and structural properties of the carbonized nanocomposites were studied using transmission electron microscopy (TEM), scanning electron microscopy (SEM), X-ray powder diffraction (XRD) and Raman spectroscopy. The accomplishment of complete carbonization of PANI in PANI/TiO2 nanocomposites was confirmed by Raman spectroscopy. The appearance of anatase and rutile crystal forms in TiO2 NPs upon carbonization, with mass ratio depending on the initial molar ratio of ANI and TiO2 NPs was revealed by XRD measurements, TEM, SEM and Raman spectroscopy. The photocatalytic activities of carbonized PANI/TiO2 nanocomposites were evaluated following the photocatalytic degradation processes of Rhodamine B and Methylene blue. Carbonized PANI/TiO2 nanocomposites showed higher photocatalytic efficacy compared to bare TiO2 NPs and non-carbonized PANI/TiO2 nanocomposites. The porosity and surface structure of carbonized PANI/TiO2 nanocomposites, as well as crystalline structure of TiO2, affect photocatalytic activity of nanocomposites. (C) 2017 Elsevier B.V. All rights reserved.",
journal = "Applied Catalysis. B: Environmental",
title = "Superior photocatalytic properties of carbonized PANI/TiO2 nanocomposites",
volume = "213",
pages = "155-166",
doi = "10.1016/j.apcatb.2017.05.023"
}
Radoičić, M. B., Ćirić-Marjanović, G. N., Spasojević, V. D., Ahrenkiel, S. P., Mitrić, M., Novaković, T. B.,& Šaponjić, Z. (2017). Superior photocatalytic properties of carbonized PANI/TiO2 nanocomposites.
Applied Catalysis. B: Environmental, 213, 155-166.
https://doi.org/10.1016/j.apcatb.2017.05.023
Radoičić MB, Ćirić-Marjanović GN, Spasojević VD, Ahrenkiel SP, Mitrić M, Novaković TB, Šaponjić Z. Superior photocatalytic properties of carbonized PANI/TiO2 nanocomposites. Applied Catalysis. B: Environmental. 2017;213:155-166
Radoičić Marija B., Ćirić-Marjanović Gordana N., Spasojević Vuk D., Ahrenkiel Scott Phillip, Mitrić Miodrag, Novaković Tatjana B., Šaponjić Zoran, "Superior photocatalytic properties of carbonized PANI/TiO2 nanocomposites" Applied Catalysis. B: Environmental, 213 (2017):155-166,
https://doi.org/10.1016/j.apcatb.2017.05.023 .
35
30
30

Surface-modified TiO2 nanoparticles with ascorbic acid: Antioxidant properties and efficiency against DNA damage in vitro

Bajić, Vladan P.; Spremo-Potparević, Biljana; Živković, Lada; Cabarkapa, Andrea; Kotur-Stevuljevic, Jelena; Isenović, Esma R.; Sredojević, Dušan; Vukoje, Ivana D.; Lazić, Vesna M.; Ahrenkiel, Scott Phillip; Nedeljković, Jovan

(2017)

TY  - JOUR
AU  - Bajić, Vladan P.
AU  - Spremo-Potparević, Biljana
AU  - Živković, Lada
AU  - Cabarkapa, Andrea
AU  - Kotur-Stevuljevic, Jelena
AU  - Isenović, Esma R.
AU  - Sredojević, Dušan
AU  - Vukoje, Ivana D.
AU  - Lazić, Vesna M.
AU  - Ahrenkiel, Scott Phillip
AU  - Nedeljković, Jovan
PY  - 2017
UR  - http://vinar.vin.bg.ac.rs/handle/123456789/1607
AB  - The antigenotoxic and antioxidative properties of surface-modified TiO2 nanoparticles (NPs) with ascorbic acid (AA) were compared with those of constituents (free AA and bare TiO2 NPs). Colloids consisting of the TiO2 NPs with anatase crystal structure were prepared by acidic hydrolysis of TiCl4. The synthesized TiO2 NPs were characterized using transmission electron microscopy and X-ray diffraction analysis. The charge transfer (CT) complex formation between surface Ti atoms and AA is indicated by immediate appearance of red color. Composition and stability constants of CT complex were determined using Jobs method and Banesi-Hildebrand analysis, respectively. The surface structure of CT complex was determined from infra-red spectra of free and bound AA to the surface Ti atoms. The experimental data were supported with quantum chemical calculations based on density functional theory (DFT). The antigenotoxic potential of CT complex was evaluated in leukocytes of whole blood cells in vitro by comet assay method. For evaluation of antioxidant properties, total antioxidant status (TAS) and total oxidant status (TOS) were determined in human serum pool in vitro. The presented results indicate that bare TiO2 NPs have more pronounced antigenotoxic effects in comparison with either surface-modified TiO2 NPs with AA or free AA. No significant differences between the antigenotoxic and antioxidative properties of free and bound AA on the TiO2 NPs were noticed in the investigated concentration range. It seems that surface-modified TiO2 NPs with AA and/or similar compounds can be used to maintain its beneficial activities. (C) 2017 Elsevier B.V. All rights reserved.
T2  - Colloids and Surfaces. B: Biointerfaces
T1  - Surface-modified TiO2 nanoparticles with ascorbic acid: Antioxidant properties and efficiency against DNA damage in vitro
VL  - 155
SP  - 323
EP  - 331
DO  - 10.1016/j.colsurfb.2017.04.032
ER  - 
@article{
author = "Bajić, Vladan P. and Spremo-Potparević, Biljana and Živković, Lada and Cabarkapa, Andrea and Kotur-Stevuljevic, Jelena and Isenović, Esma R. and Sredojević, Dušan and Vukoje, Ivana D. and Lazić, Vesna M. and Ahrenkiel, Scott Phillip and Nedeljković, Jovan",
year = "2017",
url = "http://vinar.vin.bg.ac.rs/handle/123456789/1607",
abstract = "The antigenotoxic and antioxidative properties of surface-modified TiO2 nanoparticles (NPs) with ascorbic acid (AA) were compared with those of constituents (free AA and bare TiO2 NPs). Colloids consisting of the TiO2 NPs with anatase crystal structure were prepared by acidic hydrolysis of TiCl4. The synthesized TiO2 NPs were characterized using transmission electron microscopy and X-ray diffraction analysis. The charge transfer (CT) complex formation between surface Ti atoms and AA is indicated by immediate appearance of red color. Composition and stability constants of CT complex were determined using Jobs method and Banesi-Hildebrand analysis, respectively. The surface structure of CT complex was determined from infra-red spectra of free and bound AA to the surface Ti atoms. The experimental data were supported with quantum chemical calculations based on density functional theory (DFT). The antigenotoxic potential of CT complex was evaluated in leukocytes of whole blood cells in vitro by comet assay method. For evaluation of antioxidant properties, total antioxidant status (TAS) and total oxidant status (TOS) were determined in human serum pool in vitro. The presented results indicate that bare TiO2 NPs have more pronounced antigenotoxic effects in comparison with either surface-modified TiO2 NPs with AA or free AA. No significant differences between the antigenotoxic and antioxidative properties of free and bound AA on the TiO2 NPs were noticed in the investigated concentration range. It seems that surface-modified TiO2 NPs with AA and/or similar compounds can be used to maintain its beneficial activities. (C) 2017 Elsevier B.V. All rights reserved.",
journal = "Colloids and Surfaces. B: Biointerfaces",
title = "Surface-modified TiO2 nanoparticles with ascorbic acid: Antioxidant properties and efficiency against DNA damage in vitro",
volume = "155",
pages = "323-331",
doi = "10.1016/j.colsurfb.2017.04.032"
}
Bajić, V. P., Spremo-Potparević, B., Živković, L., Cabarkapa, A., Kotur-Stevuljevic, J., Isenović, E. R., Sredojević, D., Vukoje, I. D., Lazić, V. M., Ahrenkiel, S. P.,& Nedeljković, J. (2017). Surface-modified TiO2 nanoparticles with ascorbic acid: Antioxidant properties and efficiency against DNA damage in vitro.
Colloids and Surfaces. B: Biointerfaces, 155, 323-331.
https://doi.org/10.1016/j.colsurfb.2017.04.032
Bajić VP, Spremo-Potparević B, Živković L, Cabarkapa A, Kotur-Stevuljevic J, Isenović ER, Sredojević D, Vukoje ID, Lazić VM, Ahrenkiel SP, Nedeljković J. Surface-modified TiO2 nanoparticles with ascorbic acid: Antioxidant properties and efficiency against DNA damage in vitro. Colloids and Surfaces. B: Biointerfaces. 2017;155:323-331
Bajić Vladan P., Spremo-Potparević Biljana, Živković Lada, Cabarkapa Andrea, Kotur-Stevuljevic Jelena, Isenović Esma R., Sredojević Dušan, Vukoje Ivana D., Lazić Vesna M., Ahrenkiel Scott Phillip, Nedeljković Jovan, "Surface-modified TiO2 nanoparticles with ascorbic acid: Antioxidant properties and efficiency against DNA damage in vitro" Colloids and Surfaces. B: Biointerfaces, 155 (2017):323-331,
https://doi.org/10.1016/j.colsurfb.2017.04.032 .
16
15
17

Influence of hematite nanorods on the mechanical properties of epoxy resin

Bogdanovic, Gordana; Kovač, Tijana S.; Džunuzović, Enis S.; Spirkova, Milena; Ahrenkiel, Scott Phillip; Nedeljković, Jovan

(2017)

TY  - JOUR
AU  - Bogdanovic, Gordana
AU  - Kovač, Tijana S.
AU  - Džunuzović, Enis S.
AU  - Spirkova, Milena
AU  - Ahrenkiel, Scott Phillip
AU  - Nedeljković, Jovan
PY  - 2017
UR  - http://vinar.vin.bg.ac.rs/handle/123456789/1625
AB  - The mechanical properties of nanocomposites obtained by incorporation of fairly uniform hematite nanorods (alpha-Fe2O3 NRs) into epoxy resin were studied as a function of the content of the inorganic phase. A thorough microstructural characterization of the alpha-Fe2O3 NRs and the nanocomposites was performed using transmission electron microscopy (TEM) and atomic force microscopy (AFM). The TEM measurements revealed rod-like morphology of the nanofiller with a uniform size distribution (8.5 nmx170 nm, diameterxlength). High-magnification TEM and AFM measurements indicated agglomeration of alpha-Fe2O3 NRs embedded in the epoxy resin. Stress at break, strain at break, elastic modulus and tensile toughness of the nanocomposites were compared with the data obtained for pure epoxy resin. Significant influence of nanofiller on the mechanical properties of epoxy resin, as well as on the glass transition temperature, could be noticed for samples with low contents of the inorganic phase (up to 1 wt. %).
T2  - Journal of the Serbian Chemical Society
T1  - Influence of hematite nanorods on the mechanical properties of epoxy resin
VL  - 82
IS  - 4
SP  - 437
EP  - 447
DO  - 10.2298/JSC160707017B
ER  - 
@article{
author = "Bogdanovic, Gordana and Kovač, Tijana S. and Džunuzović, Enis S. and Spirkova, Milena and Ahrenkiel, Scott Phillip and Nedeljković, Jovan",
year = "2017",
url = "http://vinar.vin.bg.ac.rs/handle/123456789/1625",
abstract = "The mechanical properties of nanocomposites obtained by incorporation of fairly uniform hematite nanorods (alpha-Fe2O3 NRs) into epoxy resin were studied as a function of the content of the inorganic phase. A thorough microstructural characterization of the alpha-Fe2O3 NRs and the nanocomposites was performed using transmission electron microscopy (TEM) and atomic force microscopy (AFM). The TEM measurements revealed rod-like morphology of the nanofiller with a uniform size distribution (8.5 nmx170 nm, diameterxlength). High-magnification TEM and AFM measurements indicated agglomeration of alpha-Fe2O3 NRs embedded in the epoxy resin. Stress at break, strain at break, elastic modulus and tensile toughness of the nanocomposites were compared with the data obtained for pure epoxy resin. Significant influence of nanofiller on the mechanical properties of epoxy resin, as well as on the glass transition temperature, could be noticed for samples with low contents of the inorganic phase (up to 1 wt. %).",
journal = "Journal of the Serbian Chemical Society",
title = "Influence of hematite nanorods on the mechanical properties of epoxy resin",
volume = "82",
number = "4",
pages = "437-447",
doi = "10.2298/JSC160707017B"
}
Bogdanovic, G., Kovač, T. S., Džunuzović, E. S., Spirkova, M., Ahrenkiel, S. P.,& Nedeljković, J. (2017). Influence of hematite nanorods on the mechanical properties of epoxy resin.
Journal of the Serbian Chemical Society, 82(4), 437-447.
https://doi.org/10.2298/JSC160707017B
Bogdanovic G, Kovač TS, Džunuzović ES, Spirkova M, Ahrenkiel SP, Nedeljković J. Influence of hematite nanorods on the mechanical properties of epoxy resin. Journal of the Serbian Chemical Society. 2017;82(4):437-447
Bogdanovic Gordana, Kovač Tijana S., Džunuzović Enis S., Spirkova Milena, Ahrenkiel Scott Phillip, Nedeljković Jovan, "Influence of hematite nanorods on the mechanical properties of epoxy resin" Journal of the Serbian Chemical Society, 82, no. 4 (2017):437-447,
https://doi.org/10.2298/JSC160707017B .
2
2
2

Photocatalytic Ability of Visible-Light-Responsive TiO2 Nanoparticles

Vukoje, Ivana D.; Kovač, Tijana S.; Džunuzović, Jasna V.; Džunuzović, Enis S.; Lončarević, Davor; Ahrenkiel, Scott Phillip; Nedeljković, Jovan

(2016)

TY  - JOUR
AU  - Vukoje, Ivana D.
AU  - Kovač, Tijana S.
AU  - Džunuzović, Jasna V.
AU  - Džunuzović, Enis S.
AU  - Lončarević, Davor
AU  - Ahrenkiel, Scott Phillip
AU  - Nedeljković, Jovan
PY  - 2016
UR  - http://vinar.vin.bg.ac.rs/handle/123456789/1221
AB  - The synthetic procedures for preparation of free-standing and attached to polymer support surface modified TiO2 nanoparticles (NPs) with absorption extended into the visible spectral region due to charge transfer complex formation were developed. The one-step synthesis of colloids consisting of surface-modified TiO2 NPs is based on the reaction between titanium(IV) isopropoxide (TTIP) and lauryl galatte in nonprotic organic solvents (tetrahydrofuran, xylol, chloroform). The poly(GMA-co-EGDMA) copolymer decorated with surface-modified TiO2 NPs was obtained in two steps. First, copolymer was functionalized with dopamine and then treated with TTIP in organic solvent at slightly elevated temperature. Thorough microstructural and optical characterization of free-standing and attached to polymer support surface-modified TiO2 NPs was performed involving transmission electron microscopy as well as absorption and reflection spectroscopy. Infrared spectroscopy was used to understand coordination of ligands to surface Ti atoms. Photoredox chemistry of surface-modified TiO2 NPs attached to the polymer support was tested. Enhanced photooxidative ability of composite was demonstrated by degradation of organic dye crystal violet under visible light illumination, i.e., using photons with energy smaller than 2.75 eV. On the other hand, photocatalytic hydrogen production was used to demonstrate photoreduction ability of surface modified TiO2 NPs attached to the polymer support.
T2  - Journal of Physical Chemistry. C
T1  - Photocatalytic Ability of Visible-Light-Responsive TiO2 Nanoparticles
VL  - 120
IS  - 33
SP  - 18560
EP  - 18569
DO  - 10.1021/acs.jpcc.6b04293
ER  - 
@article{
author = "Vukoje, Ivana D. and Kovač, Tijana S. and Džunuzović, Jasna V. and Džunuzović, Enis S. and Lončarević, Davor and Ahrenkiel, Scott Phillip and Nedeljković, Jovan",
year = "2016",
url = "http://vinar.vin.bg.ac.rs/handle/123456789/1221",
abstract = "The synthetic procedures for preparation of free-standing and attached to polymer support surface modified TiO2 nanoparticles (NPs) with absorption extended into the visible spectral region due to charge transfer complex formation were developed. The one-step synthesis of colloids consisting of surface-modified TiO2 NPs is based on the reaction between titanium(IV) isopropoxide (TTIP) and lauryl galatte in nonprotic organic solvents (tetrahydrofuran, xylol, chloroform). The poly(GMA-co-EGDMA) copolymer decorated with surface-modified TiO2 NPs was obtained in two steps. First, copolymer was functionalized with dopamine and then treated with TTIP in organic solvent at slightly elevated temperature. Thorough microstructural and optical characterization of free-standing and attached to polymer support surface-modified TiO2 NPs was performed involving transmission electron microscopy as well as absorption and reflection spectroscopy. Infrared spectroscopy was used to understand coordination of ligands to surface Ti atoms. Photoredox chemistry of surface-modified TiO2 NPs attached to the polymer support was tested. Enhanced photooxidative ability of composite was demonstrated by degradation of organic dye crystal violet under visible light illumination, i.e., using photons with energy smaller than 2.75 eV. On the other hand, photocatalytic hydrogen production was used to demonstrate photoreduction ability of surface modified TiO2 NPs attached to the polymer support.",
journal = "Journal of Physical Chemistry. C",
title = "Photocatalytic Ability of Visible-Light-Responsive TiO2 Nanoparticles",
volume = "120",
number = "33",
pages = "18560-18569",
doi = "10.1021/acs.jpcc.6b04293"
}
Vukoje, I. D., Kovač, T. S., Džunuzović, J. V., Džunuzović, E. S., Lončarević, D., Ahrenkiel, S. P.,& Nedeljković, J. (2016). Photocatalytic Ability of Visible-Light-Responsive TiO2 Nanoparticles.
Journal of Physical Chemistry. C, 120(33), 18560-18569.
https://doi.org/10.1021/acs.jpcc.6b04293
Vukoje ID, Kovač TS, Džunuzović JV, Džunuzović ES, Lončarević D, Ahrenkiel SP, Nedeljković J. Photocatalytic Ability of Visible-Light-Responsive TiO2 Nanoparticles. Journal of Physical Chemistry. C. 2016;120(33):18560-18569
Vukoje Ivana D., Kovač Tijana S., Džunuzović Jasna V., Džunuzović Enis S., Lončarević Davor, Ahrenkiel Scott Phillip, Nedeljković Jovan, "Photocatalytic Ability of Visible-Light-Responsive TiO2 Nanoparticles" Journal of Physical Chemistry. C, 120, no. 33 (2016):18560-18569,
https://doi.org/10.1021/acs.jpcc.6b04293 .
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Effect of annealing on luminescence of Eu3+- and Sm3+-doped Mg2TiO4 nanoparticles

Medić, Mina M.; Antić, Željka; Đorđević, Vesna R.; Ahrenkiel, Scott Phillip; Marinović-Cincović, Milena; Dramićanin, Miroslav

(2016)

TY  - JOUR
AU  - Medić, Mina M.
AU  - Antić, Željka
AU  - Đorđević, Vesna R.
AU  - Ahrenkiel, Scott Phillip
AU  - Marinović-Cincović, Milena
AU  - Dramićanin, Miroslav
PY  - 2016
UR  - http://vinar.vin.bg.ac.rs/handle/123456789/879
AB  - This work explores the influence of annealing temperature on the structure and luminescence of 2 at% Eu3+ and 1 at Sm3+-doped Mg2TiO4 nanopowders produced via Pechini-type polymerized complex route. Mg2TiO4 samples were annealed at 7 different temperatures (400 degrees C, 450 degrees C, 500 degrees C, 550 degrees C, 600 degrees C, 650 degrees C and 700 degrees C) to determine the temperature range in which cubic inverse spinel structure is stable and to follow the changes of material luminescence properties. X-ray diffraction revealed that crystallization of both Eu3+ and Sm3+-doped Mg2TiO4 nanopowders starts at 400 degrees C, and that Sm3+ doped Mg2TiO4 starts to decompose at 650 degrees C, while Eu3+ doped Mg2TiO4 starts to decompose at 700 degrees C. Samples annealed at higher temperatures show higher crystallinity and larger crystallite size. Mg2TiO4 powder annealed at 600 degrees C is composed of similar to 5 nm size nanoparticles agglomerated in micron-size and dense chunks. The emission spectra of nanoparticles are composed of emissions from defects in Mg2TiO4 host and characteristic emissions of Eu3+ (D-5(0) - GT F-7(J)) and Sm3+ ((4)G(5/2) - GT H-6(J)) ions. The stronger emission and longer emission decays are observed with samples annealed at high temperatures. In the case of the Eu3+ ions emission intensity increased one order of magnitude between samples annealed at 400 degrees C and 650 degrees C. (C) 2015 Elsevier B.V. All rights reserved.
T2  - Journal of Luminescence
T1  - Effect of annealing on luminescence of Eu3+- and Sm3+-doped Mg2TiO4 nanoparticles
VL  - 170
IS  - SI
SP  - 679
EP  - 685
DO  - 10.1016/j.jlumin.2015.06.007
ER  - 
@article{
author = "Medić, Mina M. and Antić, Željka and Đorđević, Vesna R. and Ahrenkiel, Scott Phillip and Marinović-Cincović, Milena and Dramićanin, Miroslav",
year = "2016",
url = "http://vinar.vin.bg.ac.rs/handle/123456789/879",
abstract = "This work explores the influence of annealing temperature on the structure and luminescence of 2 at% Eu3+ and 1 at Sm3+-doped Mg2TiO4 nanopowders produced via Pechini-type polymerized complex route. Mg2TiO4 samples were annealed at 7 different temperatures (400 degrees C, 450 degrees C, 500 degrees C, 550 degrees C, 600 degrees C, 650 degrees C and 700 degrees C) to determine the temperature range in which cubic inverse spinel structure is stable and to follow the changes of material luminescence properties. X-ray diffraction revealed that crystallization of both Eu3+ and Sm3+-doped Mg2TiO4 nanopowders starts at 400 degrees C, and that Sm3+ doped Mg2TiO4 starts to decompose at 650 degrees C, while Eu3+ doped Mg2TiO4 starts to decompose at 700 degrees C. Samples annealed at higher temperatures show higher crystallinity and larger crystallite size. Mg2TiO4 powder annealed at 600 degrees C is composed of similar to 5 nm size nanoparticles agglomerated in micron-size and dense chunks. The emission spectra of nanoparticles are composed of emissions from defects in Mg2TiO4 host and characteristic emissions of Eu3+ (D-5(0) - GT F-7(J)) and Sm3+ ((4)G(5/2) - GT H-6(J)) ions. The stronger emission and longer emission decays are observed with samples annealed at high temperatures. In the case of the Eu3+ ions emission intensity increased one order of magnitude between samples annealed at 400 degrees C and 650 degrees C. (C) 2015 Elsevier B.V. All rights reserved.",
journal = "Journal of Luminescence",
title = "Effect of annealing on luminescence of Eu3+- and Sm3+-doped Mg2TiO4 nanoparticles",
volume = "170",
number = "SI",
pages = "679-685",
doi = "10.1016/j.jlumin.2015.06.007"
}
Medić, M. M., Antić, Ž., Đorđević, V. R., Ahrenkiel, S. P., Marinović-Cincović, M.,& Dramićanin, M. (2016). Effect of annealing on luminescence of Eu3+- and Sm3+-doped Mg2TiO4 nanoparticles.
Journal of Luminescence, 170(SI), 679-685.
https://doi.org/10.1016/j.jlumin.2015.06.007
Medić MM, Antić Ž, Đorđević VR, Ahrenkiel SP, Marinović-Cincović M, Dramićanin M. Effect of annealing on luminescence of Eu3+- and Sm3+-doped Mg2TiO4 nanoparticles. Journal of Luminescence. 2016;170(SI):679-685
Medić Mina M., Antić Željka, Đorđević Vesna R., Ahrenkiel Scott Phillip, Marinović-Cincović Milena, Dramićanin Miroslav, "Effect of annealing on luminescence of Eu3+- and Sm3+-doped Mg2TiO4 nanoparticles" Journal of Luminescence, 170, no. SI (2016):679-685,
https://doi.org/10.1016/j.jlumin.2015.06.007 .
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4

Room temperature ferromagnetism in Cu2+ doped TiO2 nanocrystals: The impact of their size, shape and dopant concentration

Vranješ, Mila; Kuljanin-Jakovljević, Jadranka Ž.; Konstantinovic, Z.; Pomar, A.; Ahrenkiel, Scott Phillip; Radetic, T.; Stoiljković, Milovan; Mitrić, Miodrag; Šaponjić, Zoran

(2016)

TY  - JOUR
AU  - Vranješ, Mila
AU  - Kuljanin-Jakovljević, Jadranka Ž.
AU  - Konstantinovic, Z.
AU  - Pomar, A.
AU  - Ahrenkiel, Scott Phillip
AU  - Radetic, T.
AU  - Stoiljković, Milovan
AU  - Mitrić, Miodrag
AU  - Šaponjić, Zoran
PY  - 2016
UR  - http://vinar.vin.bg.ac.rs/handle/123456789/1024
AB  - Cu2+ doped TiO2 nanocrystals were synthesized using dispersions of titania nanotubes in the presence of Cu2+ ions as a precursors. The morphologies of nanotubular titania precursors and resulted Cu2+ doped TiO2 nanocrystals were characterized by TEM. Structural and optical properties were studied by XRPD analysis and UV-vis spectroscopy in reflectance mode, respectively. Their magnetic properties were investigated using SQUID magnetometer. Tetragonal anatase crystalline structure was confirmed in all synthesized samples. Polygonal (d similar to 15 nm) and spheroid like (length, up to 90 nm) Cu2+ doped TiO2 nanocrystals in samples synthesized at different pHs were observed by TEM. Ferromagnetic ordering with almost closed loop (H-c similar to 200 Oe) was detected in all Cu2+ doped TiO2 nanoparticle films. The saturation magnetization values varied depending on the Cu2+ concentration, nanoparticles shape, size and consequently different number of oxygen vacancies. This study revealed possibility to control magnetic ordering by changing the shape/aspect ratio of Cu2+ doped TiO2 nanocrystals. (C) 2015 Elsevier Ltd. All rights reserved.
T2  - Materials Research Bulletin
T1  - Room temperature ferromagnetism in Cu2+ doped TiO2 nanocrystals: The impact of their size, shape and dopant concentration
VL  - 76
SP  - 100
EP  - 106
DO  - 10.1016/j.materresbull.2015.11.051
ER  - 
@article{
author = "Vranješ, Mila and Kuljanin-Jakovljević, Jadranka Ž. and Konstantinovic, Z. and Pomar, A. and Ahrenkiel, Scott Phillip and Radetic, T. and Stoiljković, Milovan and Mitrić, Miodrag and Šaponjić, Zoran",
year = "2016",
url = "http://vinar.vin.bg.ac.rs/handle/123456789/1024",
abstract = "Cu2+ doped TiO2 nanocrystals were synthesized using dispersions of titania nanotubes in the presence of Cu2+ ions as a precursors. The morphologies of nanotubular titania precursors and resulted Cu2+ doped TiO2 nanocrystals were characterized by TEM. Structural and optical properties were studied by XRPD analysis and UV-vis spectroscopy in reflectance mode, respectively. Their magnetic properties were investigated using SQUID magnetometer. Tetragonal anatase crystalline structure was confirmed in all synthesized samples. Polygonal (d similar to 15 nm) and spheroid like (length, up to 90 nm) Cu2+ doped TiO2 nanocrystals in samples synthesized at different pHs were observed by TEM. Ferromagnetic ordering with almost closed loop (H-c similar to 200 Oe) was detected in all Cu2+ doped TiO2 nanoparticle films. The saturation magnetization values varied depending on the Cu2+ concentration, nanoparticles shape, size and consequently different number of oxygen vacancies. This study revealed possibility to control magnetic ordering by changing the shape/aspect ratio of Cu2+ doped TiO2 nanocrystals. (C) 2015 Elsevier Ltd. All rights reserved.",
journal = "Materials Research Bulletin",
title = "Room temperature ferromagnetism in Cu2+ doped TiO2 nanocrystals: The impact of their size, shape and dopant concentration",
volume = "76",
pages = "100-106",
doi = "10.1016/j.materresbull.2015.11.051"
}
Vranješ, M., Kuljanin-Jakovljević, J. Ž., Konstantinovic, Z., Pomar, A., Ahrenkiel, S. P., Radetic, T., Stoiljković, M., Mitrić, M.,& Šaponjić, Z. (2016). Room temperature ferromagnetism in Cu2+ doped TiO2 nanocrystals: The impact of their size, shape and dopant concentration.
Materials Research Bulletin, 76, 100-106.
https://doi.org/10.1016/j.materresbull.2015.11.051
Vranješ M, Kuljanin-Jakovljević JŽ, Konstantinovic Z, Pomar A, Ahrenkiel SP, Radetic T, Stoiljković M, Mitrić M, Šaponjić Z. Room temperature ferromagnetism in Cu2+ doped TiO2 nanocrystals: The impact of their size, shape and dopant concentration. Materials Research Bulletin. 2016;76:100-106
Vranješ Mila, Kuljanin-Jakovljević Jadranka Ž., Konstantinovic Z., Pomar A., Ahrenkiel Scott Phillip, Radetic T., Stoiljković Milovan, Mitrić Miodrag, Šaponjić Zoran, "Room temperature ferromagnetism in Cu2+ doped TiO2 nanocrystals: The impact of their size, shape and dopant concentration" Materials Research Bulletin, 76 (2016):100-106,
https://doi.org/10.1016/j.materresbull.2015.11.051 .
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