TY  - JOUR
AU  - Maletić, Marina
AU  - Kalijadis, Ana
AU  - Lazović, Vladimir
AU  - Trifunović, Snežana
AU  - Babić, Biljana M.
AU  - Dapčević, Aleksandra
AU  - Kovač, Janez
AU  - Vukčević, Marija
PY  - 2023
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/10693
AB  - N-doped TiO2/carbon composites (TiO2/CN) with different nitrogen content, were obtained starting from titanium isopropoxide and glucose, and by varying the amount of melamine, added to starting reaction mixture. For comparison, an undoped sample (TiO2/C) was also prepared. Structural and surface characteristics were determined through scanning electron microscopy, thermogravimetric analysis, elemental analysis, Fourier transform infrared spectroscopy, X-ray photoelectron spectroscopy, X-ray diffraction and nitrogen adsorption–desorption isotherms. The photocatalytic activity of TiO2/CN composites was examined via photocatalytic degradation of methylene blue and multiclass pharmaceuticals from water solution. It was found that N doping of TiO2/carbon composites induced changes in structural and surface characteristics of TiO2/CN composites, improving their adsorption, but decreasing photocatalytic efficiency. Nevertheless, TiO2/CN0.05 composite obtained by the hydrothermal synthesis in the presence of glucose and 0.05 g melamine showed the highest efficiency for removing selected pharmaceuticals and methylene blue from aqueous solutions through the combined processes of adsorption in the dark, and photocatalytic degradation under UV and visible irradiation.
T2  - Journal of the Serbian Chemical Society
T1  - Influence of N doping on structural and photocatalytic properties of hydrothermally synthesized TiO2/carbon composites
VL  - 88
IS  - 2
SP  - 183
EP  - 197
DO  - 10.2298/JSC220608079M
ER  - 

@article{
author = "Maletić, Marina and Kalijadis, Ana and Lazović, Vladimir and Trifunović, Snežana and Babić, Biljana M. and Dapčević, Aleksandra and Kovač, Janez and Vukčević, Marija",
year = "2023",
abstract = "N-doped TiO2/carbon composites (TiO2/CN) with different nitrogen content, were obtained starting from titanium isopropoxide and glucose, and by varying the amount of melamine, added to starting reaction mixture. For comparison, an undoped sample (TiO2/C) was also prepared. Structural and surface characteristics were determined through scanning electron microscopy, thermogravimetric analysis, elemental analysis, Fourier transform infrared spectroscopy, X-ray photoelectron spectroscopy, X-ray diffraction and nitrogen adsorption–desorption isotherms. The photocatalytic activity of TiO2/CN composites was examined via photocatalytic degradation of methylene blue and multiclass pharmaceuticals from water solution. It was found that N doping of TiO2/carbon composites induced changes in structural and surface characteristics of TiO2/CN composites, improving their adsorption, but decreasing photocatalytic efficiency. Nevertheless, TiO2/CN0.05 composite obtained by the hydrothermal synthesis in the presence of glucose and 0.05 g melamine showed the highest efficiency for removing selected pharmaceuticals and methylene blue from aqueous solutions through the combined processes of adsorption in the dark, and photocatalytic degradation under UV and visible irradiation.",
journal = "Journal of the Serbian Chemical Society",
title = "Influence of N doping on structural and photocatalytic properties of hydrothermally synthesized TiO2/carbon composites",
volume = "88",
number = "2",
pages = "183-197",
doi = "10.2298/JSC220608079M"
}

Maletić, M., Kalijadis, A., Lazović, V., Trifunović, S., Babić, B. M., Dapčević, A., Kovač, J.,& Vukčević, M.. (2023). Influence of N doping on structural and photocatalytic properties of hydrothermally synthesized TiO2/carbon composites. in Journal of the Serbian Chemical Society, 88(2), 183-197.
https://doi.org/10.2298/JSC220608079M

Maletić M, Kalijadis A, Lazović V, Trifunović S, Babić BM, Dapčević A, Kovač J, Vukčević M. Influence of N doping on structural and photocatalytic properties of hydrothermally synthesized TiO2/carbon composites. in Journal of the Serbian Chemical Society. 2023;88(2):183-197.
doi:10.2298/JSC220608079M .

Maletić, Marina, Kalijadis, Ana, Lazović, Vladimir, Trifunović, Snežana, Babić, Biljana M., Dapčević, Aleksandra, Kovač, Janez, Vukčević, Marija, "Influence of N doping on structural and photocatalytic properties of hydrothermally synthesized TiO2/carbon composites" in Journal of the Serbian Chemical Society, 88, no. 2 (2023):183-197,
https://doi.org/10.2298/JSC220608079M . .

TY  - CONF
AU  - Kovačević, Aleksander G.
AU  - Petrović, Suzana
AU  - Potočnik, Jelena
AU  - Lekić, Marina
AU  - Salatić, Branislav
AU  - Lazović, Vladimir
AU  - Pantelić, Dejan
AU  - Jelenković, Branislav
PY  - 2021
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/11087
AB  - The interaction of ultrashort laser beam with metal surfaces may induce the generation of periodic structures (LIPSS) with period less than the incoming wavelength, opening wide area of application [1, 2]. The presence of the underneath layer influences the quality of the LIPSS [3] . We have exposed multilayer thin films Ni/Ti, Ni/Pd, W/Ti, Ti/Ta to femtosecond beams of various wavelengths and powers. The interactions have been performed by Mira900 fs laser of Coherent. Detailed surface morphology after irradiation was examined firstly by optical microscopy, and then by scanning electron microscopy (JEOL JSM-7500F, Tokyo, Japan). Two types of structures have been noticed. Their appearance differ in the direction against the polarization direction, in pronounced ablation and in the spatial period, enabling their grouping into LIPSS of higher and lower spatial frequencies. Surface plasmon polariton is seen as the most probable cause of periodic distribution of energy at the surface and consequently to LIPSS.
PB  - Belgrade : Institute of Physics
C3  - 14th Photonics Workshop : Conference : Book of abstracts; March 14-17, 2021; Kopaonik, Serbia
T1  - Laser-induced parallel structures on multilayer thin films of Ni, Pd, Ti, Ta and W
SP  - 13
UR  - https://hdl.handle.net/21.15107/rcub_vinar_11087
ER  - 

@conference{
author = "Kovačević, Aleksander G. and Petrović, Suzana and Potočnik, Jelena and Lekić, Marina and Salatić, Branislav and Lazović, Vladimir and Pantelić, Dejan and Jelenković, Branislav",
year = "2021",
abstract = "The interaction of ultrashort laser beam with metal surfaces may induce the generation of periodic structures (LIPSS) with period less than the incoming wavelength, opening wide area of application [1, 2]. The presence of the underneath layer influences the quality of the LIPSS [3] . We have exposed multilayer thin films Ni/Ti, Ni/Pd, W/Ti, Ti/Ta to femtosecond beams of various wavelengths and powers. The interactions have been performed by Mira900 fs laser of Coherent. Detailed surface morphology after irradiation was examined firstly by optical microscopy, and then by scanning electron microscopy (JEOL JSM-7500F, Tokyo, Japan). Two types of structures have been noticed. Their appearance differ in the direction against the polarization direction, in pronounced ablation and in the spatial period, enabling their grouping into LIPSS of higher and lower spatial frequencies. Surface plasmon polariton is seen as the most probable cause of periodic distribution of energy at the surface and consequently to LIPSS.",
publisher = "Belgrade : Institute of Physics",
journal = "14th Photonics Workshop : Conference : Book of abstracts; March 14-17, 2021; Kopaonik, Serbia",
title = "Laser-induced parallel structures on multilayer thin films of Ni, Pd, Ti, Ta and W",
pages = "13",
url = "https://hdl.handle.net/21.15107/rcub_vinar_11087"
}

Kovačević, A. G., Petrović, S., Potočnik, J., Lekić, M., Salatić, B., Lazović, V., Pantelić, D.,& Jelenković, B.. (2021). Laser-induced parallel structures on multilayer thin films of Ni, Pd, Ti, Ta and W. in 14th Photonics Workshop : Conference : Book of abstracts; March 14-17, 2021; Kopaonik, Serbia
Belgrade : Institute of Physics., 13.
https://hdl.handle.net/21.15107/rcub_vinar_11087

Kovačević AG, Petrović S, Potočnik J, Lekić M, Salatić B, Lazović V, Pantelić D, Jelenković B. Laser-induced parallel structures on multilayer thin films of Ni, Pd, Ti, Ta and W. in 14th Photonics Workshop : Conference : Book of abstracts; March 14-17, 2021; Kopaonik, Serbia. 2021;:13.
https://hdl.handle.net/21.15107/rcub_vinar_11087 .

Kovačević, Aleksander G., Petrović, Suzana, Potočnik, Jelena, Lekić, Marina, Salatić, Branislav, Lazović, Vladimir, Pantelić, Dejan, Jelenković, Branislav, "Laser-induced parallel structures on multilayer thin films of Ni, Pd, Ti, Ta and W" in 14th Photonics Workshop : Conference : Book of abstracts; March 14-17, 2021; Kopaonik, Serbia (2021):13,
https://hdl.handle.net/21.15107/rcub_vinar_11087 .

TY  - CONF
AU  - Kovačević, Aleksander G.
AU  - Petrović, Suzana
AU  - Lekić, Marina
AU  - Peruško, Davor
AU  - Lazović, Vladimir
AU  - Savić-Šević, Svetlana
AU  - Vasić, Borislav
AU  - Salatić, Branislav
AU  - Gajić, Radoš
AU  - Pantelić, Dejan
AU  - Jelenković, Branislav
PY  - 2018
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/12275
PB  - Belgrade : Institute of physics
C3  - 11th Workshop on PHOTONICS : Book of abstracts
T1  - Formation of LIPSS on Al/Ti thin metal films by scanning of low-fluence femtosecond beam during cross-directional scanning
SP  - 34
EP  - 34
UR  - https://hdl.handle.net/21.15107/rcub_vinar_12275
ER  - 

@conference{
author = "Kovačević, Aleksander G. and Petrović, Suzana and Lekić, Marina and Peruško, Davor and Lazović, Vladimir and Savić-Šević, Svetlana and Vasić, Borislav and Salatić, Branislav and Gajić, Radoš and Pantelić, Dejan and Jelenković, Branislav",
year = "2018",
publisher = "Belgrade : Institute of physics",
journal = "11th Workshop on PHOTONICS : Book of abstracts",
title = "Formation of LIPSS on Al/Ti thin metal films by scanning of low-fluence femtosecond beam during cross-directional scanning",
pages = "34-34",
url = "https://hdl.handle.net/21.15107/rcub_vinar_12275"
}

Kovačević, A. G., Petrović, S., Lekić, M., Peruško, D., Lazović, V., Savić-Šević, S., Vasić, B., Salatić, B., Gajić, R., Pantelić, D.,& Jelenković, B.. (2018). Formation of LIPSS on Al/Ti thin metal films by scanning of low-fluence femtosecond beam during cross-directional scanning. in 11th Workshop on PHOTONICS : Book of abstracts
Belgrade : Institute of physics., 34-34.
https://hdl.handle.net/21.15107/rcub_vinar_12275

Kovačević AG, Petrović S, Lekić M, Peruško D, Lazović V, Savić-Šević S, Vasić B, Salatić B, Gajić R, Pantelić D, Jelenković B. Formation of LIPSS on Al/Ti thin metal films by scanning of low-fluence femtosecond beam during cross-directional scanning. in 11th Workshop on PHOTONICS : Book of abstracts. 2018;:34-34.
https://hdl.handle.net/21.15107/rcub_vinar_12275 .

Kovačević, Aleksander G., Petrović, Suzana, Lekić, Marina, Peruško, Davor, Lazović, Vladimir, Savić-Šević, Svetlana, Vasić, Borislav, Salatić, Branislav, Gajić, Radoš, Pantelić, Dejan, Jelenković, Branislav, "Formation of LIPSS on Al/Ti thin metal films by scanning of low-fluence femtosecond beam during cross-directional scanning" in 11th Workshop on PHOTONICS : Book of abstracts (2018):34-34,
https://hdl.handle.net/21.15107/rcub_vinar_12275 .

TY  - CONF
AU  - Ralević, Uroš
AU  - Isić, Goran
AU  - Laban, Bojana
AU  - Vasić Anićijević, Dragana D.
AU  - Vodnik, Vesna
AU  - Bogdanović, Una M.
AU  - Vasić, Vesna M.
AU  - Lazović, Vladimir
AU  - Gajić, Radoš
PY  - 2017
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/13345
AB  - Metallic nanoparticles are known for their remarkable ability to confine and enhance the electromagnetic fields incident upon them. These nanoobjects have thus been successfully utilized as a platform for enhancing the intensity of light scattered from analyte molecules residing in their close vicinity. A perfect example is surface enhanced Raman spectroscopy (SERS) in which the confined, strong electromagnetic fields transfer the electromagnetic energy to the analyte thereby increasing the magnitude of the analyte phonon-modulated dipole moment and consequently its Raman scattering efficiency [1]. The SERS enhancement factors depend on various factors such as the topology of the metallic nanoobjects, and can be as high as 1011 [1]. Large enhancement factors render SERS a very versatile technique which can be used for detection of extremely small amounts of analyte adsorbed on the surface of metallic nanoobjects [2] as well as for studies on a single molecule level [3].   Here we investigate silver nanoparticle clusters deposited on an insulating substrate as a platform for SERS, using confocal Raman microspectroscopy and a finite element based numerical analysis. The analysis of SERS enhancement based on rigorous numerical simulations of Maxwell equations for the case of plane wave scattering on random silver nanoparticle clusters, shows that the highest field enhancement factors are reached at collective nanoparticle plasmon resonances and become redshifted in elongated clusters with an increasing number of particles. From an inspection of electromagnetic field distribution on nanoparticle surfaces, a conclusion is reached that at least 90% of the total enhancement originates from nanogaps between adjacent nanoparticles, implying that the SERS experiments are sensitive only to adsorbates located in these gaps. The latter conclusion is used to aid the experimental SERS study of the thiacyanine (TC) dye adsorption on the surface of silver nanoparticle clusters. By analyzing the SERS spectra of TC dye coated nanoparticle clusters, we find that the adsorption of this particular dye is strongly influenced by the capping anions which are initially conformed on the surface of the nanoparticles.
PB  - Belgrade : Institute of Physics Belgrade
C3  - PHOTONICA2017 : 6th International School and Conference on Photonics and COST actions: MP1406 and MP1402 : Program and the book of abstracts
T1  - Surface enhanced Raman spectroscopy of thiacyanine coated silver nanoparticle clusters
SP  - 46
EP  - 46
ER  - 

@conference{
author = "Ralević, Uroš and Isić, Goran and Laban, Bojana and Vasić Anićijević, Dragana D. and Vodnik, Vesna and Bogdanović, Una M. and Vasić, Vesna M. and Lazović, Vladimir and Gajić, Radoš",
year = "2017",
abstract = "Metallic nanoparticles are known for their remarkable ability to confine and enhance the electromagnetic fields incident upon them. These nanoobjects have thus been successfully utilized as a platform for enhancing the intensity of light scattered from analyte molecules residing in their close vicinity. A perfect example is surface enhanced Raman spectroscopy (SERS) in which the confined, strong electromagnetic fields transfer the electromagnetic energy to the analyte thereby increasing the magnitude of the analyte phonon-modulated dipole moment and consequently its Raman scattering efficiency [1]. The SERS enhancement factors depend on various factors such as the topology of the metallic nanoobjects, and can be as high as 1011 [1]. Large enhancement factors render SERS a very versatile technique which can be used for detection of extremely small amounts of analyte adsorbed on the surface of metallic nanoobjects [2] as well as for studies on a single molecule level [3].   Here we investigate silver nanoparticle clusters deposited on an insulating substrate as a platform for SERS, using confocal Raman microspectroscopy and a finite element based numerical analysis. The analysis of SERS enhancement based on rigorous numerical simulations of Maxwell equations for the case of plane wave scattering on random silver nanoparticle clusters, shows that the highest field enhancement factors are reached at collective nanoparticle plasmon resonances and become redshifted in elongated clusters with an increasing number of particles. From an inspection of electromagnetic field distribution on nanoparticle surfaces, a conclusion is reached that at least 90% of the total enhancement originates from nanogaps between adjacent nanoparticles, implying that the SERS experiments are sensitive only to adsorbates located in these gaps. The latter conclusion is used to aid the experimental SERS study of the thiacyanine (TC) dye adsorption on the surface of silver nanoparticle clusters. By analyzing the SERS spectra of TC dye coated nanoparticle clusters, we find that the adsorption of this particular dye is strongly influenced by the capping anions which are initially conformed on the surface of the nanoparticles.",
publisher = "Belgrade : Institute of Physics Belgrade",
journal = "PHOTONICA2017 : 6th International School and Conference on Photonics and COST actions: MP1406 and MP1402 : Program and the book of abstracts",
title = "Surface enhanced Raman spectroscopy of thiacyanine coated silver nanoparticle clusters",
pages = "46-46"
}

Ralević, U., Isić, G., Laban, B., Vasić Anićijević, D. D., Vodnik, V., Bogdanović, U. M., Vasić, V. M., Lazović, V.,& Gajić, R.. (2017). Surface enhanced Raman spectroscopy of thiacyanine coated silver nanoparticle clusters. in PHOTONICA2017 : 6th International School and Conference on Photonics and COST actions: MP1406 and MP1402 : Program and the book of abstracts
Belgrade : Institute of Physics Belgrade., 46-46.

Ralević U, Isić G, Laban B, Vasić Anićijević DD, Vodnik V, Bogdanović UM, Vasić VM, Lazović V, Gajić R. Surface enhanced Raman spectroscopy of thiacyanine coated silver nanoparticle clusters. in PHOTONICA2017 : 6th International School and Conference on Photonics and COST actions: MP1406 and MP1402 : Program and the book of abstracts. 2017;:46-46..

Ralević, Uroš, Isić, Goran, Laban, Bojana, Vasić Anićijević, Dragana D., Vodnik, Vesna, Bogdanović, Una M., Vasić, Vesna M., Lazović, Vladimir, Gajić, Radoš, "Surface enhanced Raman spectroscopy of thiacyanine coated silver nanoparticle clusters" in PHOTONICA2017 : 6th International School and Conference on Photonics and COST actions: MP1406 and MP1402 : Program and the book of abstracts (2017):46-46.