TY  - JOUR
AU  - Dimitrijević, Aleksandra
AU  - Marić, Slađana
AU  - Jocić, Ana
AU  - Tekić, Danijela
AU  - Mušović, Jasmina
AU  - Amaral, Joana S.
PY  - 2024
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/13029
AB  - Polyphenols are natural compounds with enhanced antioxidant properties. They are present in relatively high concentrations in fruit/vegetable by-products. Therefore, there is a need for the development of efficient and cost-effective methods for the separation and purification of these valuable compounds. Traditional extraction with organic solvents needs to be switched to novel methods that are more efficient, with reduced extraction times and low consumption of organic solvents. Aiming at developing sustainable processes for the separation and purification of phenolic compounds, we used three model compounds, namely resveratrol, quercetin, and gallic acid, to investigate ionic liquid-based aqueous biphasic systems (IL-ABSs) formed by choliniumbased IL in combination with polypropylene glycol with a molecular mass of 400 g/mol (PPG400). The ABS composition in the two-phase region was selected according to a previously determined phase diagram. Extraction studies indicated the preferential partition of resveratrol and quercetin toward the hydrophobic PPG-rich phase that is mainly dominated by its hydrophobic nature and the strong salting-out effect of ILs. On the other hand, due to its considerably hydrophilic nature, gallic acid preferentially migrates toward the IL phase. The achieved results from grape stem extract demonstrated high extraction efficiencies of cholinium dihydrogen phosphate (~99% for resveratrol for the PPG phase and 78% for gallic acid for the IL phase), with considerable selectivity, demonstrating promising outcomes for potential applications.
T2  - Foods
T1  - Green Extraction Strategy Using Bio-Based Aqueous Biphasic Systems for Polyphenol Valorization from Grape By-Product
VL  - 13
IS  - 6
SP  - 954
DO  - 10.3390/foods13060954
ER  - 

@article{
author = "Dimitrijević, Aleksandra and Marić, Slađana and Jocić, Ana and Tekić, Danijela and Mušović, Jasmina and Amaral, Joana S.",
year = "2024",
abstract = "Polyphenols are natural compounds with enhanced antioxidant properties. They are present in relatively high concentrations in fruit/vegetable by-products. Therefore, there is a need for the development of efficient and cost-effective methods for the separation and purification of these valuable compounds. Traditional extraction with organic solvents needs to be switched to novel methods that are more efficient, with reduced extraction times and low consumption of organic solvents. Aiming at developing sustainable processes for the separation and purification of phenolic compounds, we used three model compounds, namely resveratrol, quercetin, and gallic acid, to investigate ionic liquid-based aqueous biphasic systems (IL-ABSs) formed by choliniumbased IL in combination with polypropylene glycol with a molecular mass of 400 g/mol (PPG400). The ABS composition in the two-phase region was selected according to a previously determined phase diagram. Extraction studies indicated the preferential partition of resveratrol and quercetin toward the hydrophobic PPG-rich phase that is mainly dominated by its hydrophobic nature and the strong salting-out effect of ILs. On the other hand, due to its considerably hydrophilic nature, gallic acid preferentially migrates toward the IL phase. The achieved results from grape stem extract demonstrated high extraction efficiencies of cholinium dihydrogen phosphate (~99% for resveratrol for the PPG phase and 78% for gallic acid for the IL phase), with considerable selectivity, demonstrating promising outcomes for potential applications.",
journal = "Foods",
title = "Green Extraction Strategy Using Bio-Based Aqueous Biphasic Systems for Polyphenol Valorization from Grape By-Product",
volume = "13",
number = "6",
pages = "954",
doi = "10.3390/foods13060954"
}

Dimitrijević, A., Marić, S., Jocić, A., Tekić, D., Mušović, J.,& Amaral, J. S.. (2024). Green Extraction Strategy Using Bio-Based Aqueous Biphasic Systems for Polyphenol Valorization from Grape By-Product. in Foods, 13(6), 954.
https://doi.org/10.3390/foods13060954

Dimitrijević A, Marić S, Jocić A, Tekić D, Mušović J, Amaral JS. Green Extraction Strategy Using Bio-Based Aqueous Biphasic Systems for Polyphenol Valorization from Grape By-Product. in Foods. 2024;13(6):954.
doi:10.3390/foods13060954 .

Dimitrijević, Aleksandra, Marić, Slađana, Jocić, Ana, Tekić, Danijela, Mušović, Jasmina, Amaral, Joana S., "Green Extraction Strategy Using Bio-Based Aqueous Biphasic Systems for Polyphenol Valorization from Grape By-Product" in Foods, 13, no. 6 (2024):954,
https://doi.org/10.3390/foods13060954 . .

TY  - JOUR
AU  - Marić, Slađana
AU  - Jocić, Ana
AU  - Tekić, Danijela
AU  - Mušović, Jasmina
AU  - Milićević, Jelena
AU  - Dimitrijević, Aleksandra
PY  - 2024
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/12838
AB  - This study explores the use of a series of cholinium ionic liquids (ILs) or salts in combination with polypropylene glycol 400 to form aqueous biphasic systems (ABS) for extracting various polarity pesticides (dicamba, clomazone, pyraclostrobin, and deltamethrin) from water. We assessed five cholinium-based salting-out agents ([Ch][DHP], [Ch]Cl, [Ch][Ac], [Ch][Lac], and [Ch][Nic]), chosen for their structural diversity and unique properties, such as high salting-out potential and different ability to undergo specific interactions. Liquid-liquid equilibrium phase diagrams were established, and partition experiments were conducted to evaluate extraction efficiency. Different partition patterns were obtained for studied pesticides, with [Ch][DHP] demonstrating the highest efficiency exceeding 90 % for each target pesticide due to its strong salting-out ability. On the other hand, more diverse partition trends due to specific interactions were obtained for low-melting cholinium-ILs ABS. The effect of pH and temperature on the partitioning behavior in [Ch][Ac]-based ABS highlighted the cholinium ILs extraction system's customizable nature. Focusing on [Ch]Cl for its eco-friendly aspects, widespread availability and excellent extraction performance, we optimized parameters for the removal of pesticides from real samples, applying the technology to spiked agricultural wastewater with an extraction efficiency of over 99 %. Our findings demonstrate the potential of cholinium-based IL-ABS in reducing environmental pollution through efficient pesticide extraction.
T2  - Separation and Purification Technology
T1  - Customizable cholinium-based aqueous biphasic systems as ecofriendly extraction platform for removal of pesticide from wastewaters
VL  - 340
SP  - 126609
DO  - 10.1016/j.seppur.2024.126609
ER  - 

@article{
author = "Marić, Slađana and Jocić, Ana and Tekić, Danijela and Mušović, Jasmina and Milićević, Jelena and Dimitrijević, Aleksandra",
year = "2024",
abstract = "This study explores the use of a series of cholinium ionic liquids (ILs) or salts in combination with polypropylene glycol 400 to form aqueous biphasic systems (ABS) for extracting various polarity pesticides (dicamba, clomazone, pyraclostrobin, and deltamethrin) from water. We assessed five cholinium-based salting-out agents ([Ch][DHP], [Ch]Cl, [Ch][Ac], [Ch][Lac], and [Ch][Nic]), chosen for their structural diversity and unique properties, such as high salting-out potential and different ability to undergo specific interactions. Liquid-liquid equilibrium phase diagrams were established, and partition experiments were conducted to evaluate extraction efficiency. Different partition patterns were obtained for studied pesticides, with [Ch][DHP] demonstrating the highest efficiency exceeding 90 % for each target pesticide due to its strong salting-out ability. On the other hand, more diverse partition trends due to specific interactions were obtained for low-melting cholinium-ILs ABS. The effect of pH and temperature on the partitioning behavior in [Ch][Ac]-based ABS highlighted the cholinium ILs extraction system's customizable nature. Focusing on [Ch]Cl for its eco-friendly aspects, widespread availability and excellent extraction performance, we optimized parameters for the removal of pesticides from real samples, applying the technology to spiked agricultural wastewater with an extraction efficiency of over 99 %. Our findings demonstrate the potential of cholinium-based IL-ABS in reducing environmental pollution through efficient pesticide extraction.",
journal = "Separation and Purification Technology",
title = "Customizable cholinium-based aqueous biphasic systems as ecofriendly extraction platform for removal of pesticide from wastewaters",
volume = "340",
pages = "126609",
doi = "10.1016/j.seppur.2024.126609"
}

Marić, S., Jocić, A., Tekić, D., Mušović, J., Milićević, J.,& Dimitrijević, A.. (2024). Customizable cholinium-based aqueous biphasic systems as ecofriendly extraction platform for removal of pesticide from wastewaters. in Separation and Purification Technology, 340, 126609.
https://doi.org/10.1016/j.seppur.2024.126609

Marić S, Jocić A, Tekić D, Mušović J, Milićević J, Dimitrijević A. Customizable cholinium-based aqueous biphasic systems as ecofriendly extraction platform for removal of pesticide from wastewaters. in Separation and Purification Technology. 2024;340:126609.
doi:10.1016/j.seppur.2024.126609 .

Marić, Slađana, Jocić, Ana, Tekić, Danijela, Mušović, Jasmina, Milićević, Jelena, Dimitrijević, Aleksandra, "Customizable cholinium-based aqueous biphasic systems as ecofriendly extraction platform for removal of pesticide from wastewaters" in Separation and Purification Technology, 340 (2024):126609,
https://doi.org/10.1016/j.seppur.2024.126609 . .

TY  - JOUR
AU  - Lazarević-Pašti, Tamara
AU  - Jocić, Ana
AU  - Milanković, Vedran
AU  - Tasić, Tamara
AU  - Batalović, Katarina
AU  - Breitenbach, Stefan
AU  - Unterweger, Christoph
AU  - Fürst, Christian
AU  - Pašti, Igor A.
PY  - 2023
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/12397
AB  - In light of the escalating environmental concerns regarding pesticide accumulation, it is imperative to devise efficient strategies for their removal. Among the various options, activated carbons have emerged as promising candidates for adsorptive pesticide removal due to their many advantages, such as large surface area, well-developed porosity, and cost-effectiveness. However, the intricate relationship between the properties of these materials and their performance in pesticide adsorption remains largely unexplored. This study primarily focuses on examining the adsorption kinetics of three organophosphate pesticides: dimethoate, malathion (aliphatic), and chlorpyrifos (aromatic), using a range of cellulose-based activated carbon fibers with diverse specific surface areas, pore size distributions, and elemental compositions. By employing sophisticated data analysis tools, principal component analysis, and semi-empirical quantum chemical calculations, this study uncovers the importance of these distinct properties in efficiently removing structurally diverse pesticides. The results of the adsorption experiments suggested that these processes can be described using a pseudo-second-order kinetic model, which is confirmed via multiple linear regression. The obtained data suggest that the most effective carbon material for pesticide removal should have a pore diameter of approximately 4 nm, low oxygen content, a unimodal pore size distribution, and a high presence of sp2 domains. The insights from this research have the potential to guide the development of improved adsorbents and facilitate the rational selection of adsorbents tailored to specific pollutants based on their physicochemical properties and the pollutants’ chemical structure. By shedding light on the vital connection between adsorbent properties and performance, our findings significantly advance sustainable and effective pesticide removal, thereby fostering a cleaner and healthier environment.
T2  - C-Journal of Carbon Research
T1  - Investigating the Adsorption Kinetics of Dimethoate, Malathion and Chlorpyrifos on Cellulose-Derived Activated Carbons: Understanding the Influence of Physicochemical Properties
VL  - 9
IS  - 4
SP  - 103
DO  - 10.3390/c9040103
ER  - 

@article{
author = "Lazarević-Pašti, Tamara and Jocić, Ana and Milanković, Vedran and Tasić, Tamara and Batalović, Katarina and Breitenbach, Stefan and Unterweger, Christoph and Fürst, Christian and Pašti, Igor A.",
year = "2023",
abstract = "In light of the escalating environmental concerns regarding pesticide accumulation, it is imperative to devise efficient strategies for their removal. Among the various options, activated carbons have emerged as promising candidates for adsorptive pesticide removal due to their many advantages, such as large surface area, well-developed porosity, and cost-effectiveness. However, the intricate relationship between the properties of these materials and their performance in pesticide adsorption remains largely unexplored. This study primarily focuses on examining the adsorption kinetics of three organophosphate pesticides: dimethoate, malathion (aliphatic), and chlorpyrifos (aromatic), using a range of cellulose-based activated carbon fibers with diverse specific surface areas, pore size distributions, and elemental compositions. By employing sophisticated data analysis tools, principal component analysis, and semi-empirical quantum chemical calculations, this study uncovers the importance of these distinct properties in efficiently removing structurally diverse pesticides. The results of the adsorption experiments suggested that these processes can be described using a pseudo-second-order kinetic model, which is confirmed via multiple linear regression. The obtained data suggest that the most effective carbon material for pesticide removal should have a pore diameter of approximately 4 nm, low oxygen content, a unimodal pore size distribution, and a high presence of sp2 domains. The insights from this research have the potential to guide the development of improved adsorbents and facilitate the rational selection of adsorbents tailored to specific pollutants based on their physicochemical properties and the pollutants’ chemical structure. By shedding light on the vital connection between adsorbent properties and performance, our findings significantly advance sustainable and effective pesticide removal, thereby fostering a cleaner and healthier environment.",
journal = "C-Journal of Carbon Research",
title = "Investigating the Adsorption Kinetics of Dimethoate, Malathion and Chlorpyrifos on Cellulose-Derived Activated Carbons: Understanding the Influence of Physicochemical Properties",
volume = "9",
number = "4",
pages = "103",
doi = "10.3390/c9040103"
}

Lazarević-Pašti, T., Jocić, A., Milanković, V., Tasić, T., Batalović, K., Breitenbach, S., Unterweger, C., Fürst, C.,& Pašti, I. A.. (2023). Investigating the Adsorption Kinetics of Dimethoate, Malathion and Chlorpyrifos on Cellulose-Derived Activated Carbons: Understanding the Influence of Physicochemical Properties. in C-Journal of Carbon Research, 9(4), 103.
https://doi.org/10.3390/c9040103

Lazarević-Pašti T, Jocić A, Milanković V, Tasić T, Batalović K, Breitenbach S, Unterweger C, Fürst C, Pašti IA. Investigating the Adsorption Kinetics of Dimethoate, Malathion and Chlorpyrifos on Cellulose-Derived Activated Carbons: Understanding the Influence of Physicochemical Properties. in C-Journal of Carbon Research. 2023;9(4):103.
doi:10.3390/c9040103 .

Lazarević-Pašti, Tamara, Jocić, Ana, Milanković, Vedran, Tasić, Tamara, Batalović, Katarina, Breitenbach, Stefan, Unterweger, Christoph, Fürst, Christian, Pašti, Igor A., "Investigating the Adsorption Kinetics of Dimethoate, Malathion and Chlorpyrifos on Cellulose-Derived Activated Carbons: Understanding the Influence of Physicochemical Properties" in C-Journal of Carbon Research, 9, no. 4 (2023):103,
https://doi.org/10.3390/c9040103 . .

TY  - CONF
AU  - Mušović, Jasmina
AU  - Marić, Slađana
AU  - Jocić, Ana
AU  - Milićević, Jelena
AU  - Stanković, Dalibor
AU  - Dimitrijević, Aleksandra
PY  - 2023
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/11961
AB  - Temperature- and pH-responsive ionic liquid-based aqueous biphasic systems (IL-ABS) have been proposed as a viable and sustainable extraction/separation processes. Combining a thermosensitive polymer (such as polypropylene glycol-400, PPG400) and a pH-sensitive IL (such as choline-acetate, [Ch][Ac] as the phase-forming agents, we have tried to develop an efficient extraction platform for removing the pollutants from wastewater, namely herbicide dicamba (DIC) and insecticide deltamethrin (DLM). First, the ABS ternary phase diagrams are determined at different temperatures (25, 35 and 45°C) and pH values (2, 5, 6, and 7). The operational extraction composition was chosen to fit within the biphase region of each ABS, namely 15 wt% of IL and 40 wt% of polymer. Subsequently, extraction parameters were determined for each target compound (using high-performance chromatography) at different temperatures and pH values. Initially, polar pesticide dicamba migrated preferentially toward the IL-rich phase while deltamethrin showed the opposite direction at room temperature and pH 7. Obtained extraction efficiencies were about 93% and 23% for DLM and DIC, respectively, toward polymer-rich phase. The ability to simultaneously respond to two stimuli, in this case, temperature and pH, allowed us to obtain highly efficient extraction by changing stimuli-inducing parameters. At pH=2 and T=25°C extraction efficiencies higher than 96% for DLM and 83% for DIC were acquired. Therefore, by adjusting the applied stimuli, ABS can improve the performance resulting in the successful removal of pesticides from the aqueous phase, regardless of their polarity. This remarkable capability makes these ABSs highly appealing for designing wastewater treatment processes.
PB  - University of Belgrade : Faculty of Chemistry
C3  - YISAC 2023 : 28th Young Investigators' Seminar on Analytical Chemistry : the book of abstracts
T1  - Responsive Ionic Liquid-Based Aqueous Biphasic Systems as Efficient Extraction Platform for Sustainable Removal of Pesticides from Wastewater
SP  - 31
EP  - 31
UR  - https://hdl.handle.net/21.15107/rcub_vinar_11961
ER  - 

@conference{
author = "Mušović, Jasmina and Marić, Slađana and Jocić, Ana and Milićević, Jelena and Stanković, Dalibor and Dimitrijević, Aleksandra",
year = "2023",
abstract = "Temperature- and pH-responsive ionic liquid-based aqueous biphasic systems (IL-ABS) have been proposed as a viable and sustainable extraction/separation processes. Combining a thermosensitive polymer (such as polypropylene glycol-400, PPG400) and a pH-sensitive IL (such as choline-acetate, [Ch][Ac] as the phase-forming agents, we have tried to develop an efficient extraction platform for removing the pollutants from wastewater, namely herbicide dicamba (DIC) and insecticide deltamethrin (DLM). First, the ABS ternary phase diagrams are determined at different temperatures (25, 35 and 45°C) and pH values (2, 5, 6, and 7). The operational extraction composition was chosen to fit within the biphase region of each ABS, namely 15 wt% of IL and 40 wt% of polymer. Subsequently, extraction parameters were determined for each target compound (using high-performance chromatography) at different temperatures and pH values. Initially, polar pesticide dicamba migrated preferentially toward the IL-rich phase while deltamethrin showed the opposite direction at room temperature and pH 7. Obtained extraction efficiencies were about 93% and 23% for DLM and DIC, respectively, toward polymer-rich phase. The ability to simultaneously respond to two stimuli, in this case, temperature and pH, allowed us to obtain highly efficient extraction by changing stimuli-inducing parameters. At pH=2 and T=25°C extraction efficiencies higher than 96% for DLM and 83% for DIC were acquired. Therefore, by adjusting the applied stimuli, ABS can improve the performance resulting in the successful removal of pesticides from the aqueous phase, regardless of their polarity. This remarkable capability makes these ABSs highly appealing for designing wastewater treatment processes.",
publisher = "University of Belgrade : Faculty of Chemistry",
journal = "YISAC 2023 : 28th Young Investigators' Seminar on Analytical Chemistry : the book of abstracts",
title = "Responsive Ionic Liquid-Based Aqueous Biphasic Systems as Efficient Extraction Platform for Sustainable Removal of Pesticides from Wastewater",
pages = "31-31",
url = "https://hdl.handle.net/21.15107/rcub_vinar_11961"
}

Mušović, J., Marić, S., Jocić, A., Milićević, J., Stanković, D.,& Dimitrijević, A.. (2023). Responsive Ionic Liquid-Based Aqueous Biphasic Systems as Efficient Extraction Platform for Sustainable Removal of Pesticides from Wastewater. in YISAC 2023 : 28th Young Investigators' Seminar on Analytical Chemistry : the book of abstracts
University of Belgrade : Faculty of Chemistry., 31-31.
https://hdl.handle.net/21.15107/rcub_vinar_11961

Mušović J, Marić S, Jocić A, Milićević J, Stanković D, Dimitrijević A. Responsive Ionic Liquid-Based Aqueous Biphasic Systems as Efficient Extraction Platform for Sustainable Removal of Pesticides from Wastewater. in YISAC 2023 : 28th Young Investigators' Seminar on Analytical Chemistry : the book of abstracts. 2023;:31-31.
https://hdl.handle.net/21.15107/rcub_vinar_11961 .

Mušović, Jasmina, Marić, Slađana, Jocić, Ana, Milićević, Jelena, Stanković, Dalibor, Dimitrijević, Aleksandra, "Responsive Ionic Liquid-Based Aqueous Biphasic Systems as Efficient Extraction Platform for Sustainable Removal of Pesticides from Wastewater" in YISAC 2023 : 28th Young Investigators' Seminar on Analytical Chemistry : the book of abstracts (2023):31-31,
https://hdl.handle.net/21.15107/rcub_vinar_11961 .

TY  - JOUR
AU  - Jocić, Ana
AU  - Breitenbach, Stefan
AU  - Bajuk-Bogdanović, Danica V.
AU  - Pašti, Igor A.
AU  - Unterweger, Cristoph
AU  - Fürst, Christian
AU  - Lazarević-Pašti, Tamara
PY  - 2022
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/10185
AB  - Extensive use of pesticides resulting in their accumulation in the environment presents a hazard for their non-target species, including humans. Hence, efficient remediation strategies are needed, and, in this sense, adsorption is seen as the most straightforward approach. We have studied activated carbon fibers (ACFs) derived from viscose fibers impregnated with diammonium hydrogen phosphate (DAHP). By changing the amount of DAHP in the impregnation step, the chemical composition and textural properties of ACFs are effectively tuned, affecting their performance for dimethoate removal from water. The prepared ACFs effectively reduced the toxicity of treated water samples, both deionized water solutions and spiked tap water samples, under batch conditions and in dynamic filtration experiments. Using the results of physicochemical characterization and dimethoate adsorption measurements, multiple linear regression models were made to reliably predict performance towards dimethoate removal from water. These models can be used to quickly screen among larger sets of possible adsorbents and guide the development of novel, highly efficient adsorbents for dimethoate removal from water. © 2022 by the authors. Licensee MDPI, Basel, Switzerland.
T2  - Molecules
T1  - Viscose-Derived Activated Carbons Fibers as Highly Efficient Adsorbents for Dimethoate Removal from Water
VL  - 27
IS  - 5
SP  - 1477
DO  - 10.3390/molecules27051477
ER  - 

@article{
author = "Jocić, Ana and Breitenbach, Stefan and Bajuk-Bogdanović, Danica V. and Pašti, Igor A. and Unterweger, Cristoph and Fürst, Christian and Lazarević-Pašti, Tamara",
year = "2022",
abstract = "Extensive use of pesticides resulting in their accumulation in the environment presents a hazard for their non-target species, including humans. Hence, efficient remediation strategies are needed, and, in this sense, adsorption is seen as the most straightforward approach. We have studied activated carbon fibers (ACFs) derived from viscose fibers impregnated with diammonium hydrogen phosphate (DAHP). By changing the amount of DAHP in the impregnation step, the chemical composition and textural properties of ACFs are effectively tuned, affecting their performance for dimethoate removal from water. The prepared ACFs effectively reduced the toxicity of treated water samples, both deionized water solutions and spiked tap water samples, under batch conditions and in dynamic filtration experiments. Using the results of physicochemical characterization and dimethoate adsorption measurements, multiple linear regression models were made to reliably predict performance towards dimethoate removal from water. These models can be used to quickly screen among larger sets of possible adsorbents and guide the development of novel, highly efficient adsorbents for dimethoate removal from water. © 2022 by the authors. Licensee MDPI, Basel, Switzerland.",
journal = "Molecules",
title = "Viscose-Derived Activated Carbons Fibers as Highly Efficient Adsorbents for Dimethoate Removal from Water",
volume = "27",
number = "5",
pages = "1477",
doi = "10.3390/molecules27051477"
}

Jocić, A., Breitenbach, S., Bajuk-Bogdanović, D. V., Pašti, I. A., Unterweger, C., Fürst, C.,& Lazarević-Pašti, T.. (2022). Viscose-Derived Activated Carbons Fibers as Highly Efficient Adsorbents for Dimethoate Removal from Water. in Molecules, 27(5), 1477.
https://doi.org/10.3390/molecules27051477

Jocić A, Breitenbach S, Bajuk-Bogdanović DV, Pašti IA, Unterweger C, Fürst C, Lazarević-Pašti T. Viscose-Derived Activated Carbons Fibers as Highly Efficient Adsorbents for Dimethoate Removal from Water. in Molecules. 2022;27(5):1477.
doi:10.3390/molecules27051477 .

Jocić, Ana, Breitenbach, Stefan, Bajuk-Bogdanović, Danica V., Pašti, Igor A., Unterweger, Cristoph, Fürst, Christian, Lazarević-Pašti, Tamara, "Viscose-Derived Activated Carbons Fibers as Highly Efficient Adsorbents for Dimethoate Removal from Water" in Molecules, 27, no. 5 (2022):1477,
https://doi.org/10.3390/molecules27051477 . .

TY  - JOUR
AU  - Zdolšek, Nikola
AU  - Vujković, Milica
AU  - Metin, Önder
AU  - Brković, Snežana
AU  - Jocić, Ana
AU  - Dimitrijević, Aleksandra
AU  - Trtić-Petrović, Tatjana M.
AU  - Šljukić, Biljana
PY  - 2022
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/10229
AB  - Development of cost-effective, bi-functional carbon electrocatalysts via direct carbonization of ionic liquids (bis(cholinium) tetrachlorocobaltate(II) ([Ch]2[CoCl4]) and bis(1-butyl-3-methylimidazolium) tetrachlorocobaltate(II) ([Bmim]2[CoCl4])) is reported herein for the first time. Carbon electrocatalysts, dual-doped with cobalt and nitrogen, were tested for oxygen reduction (ORR) and oxygen evolution (OER) reactions. Both materials show high bi-functional catalytic activity and excellent stability due to synergistic effects arising from the presence of nitrogen and cobalt. Electrocatalyst prepared by carbonization of [Ch]2[CoCl4] show exceptional activity and selectivity toward ORR. Conversely, electrocatalyst prepared from [Bmim]2[CoCl4] showed a slightly better OER performance indicating that different catalytic sites are responsible for O2 reduction and H2O oxidation. Parent CoO particles with graphitic nitrogen boost activity for ORR, while elemental Co supported by nitrogen atoms is responsible for OER activity. Finally, energy consumption during electrolytic oxygen production was calculated revealing energy saving when using two materials as anode electrocatalysts.
T2  - International Journal of Hydrogen Energy
T1  - Boosting electrocatalysis of oxygen reduction and evolution reactions with cost-effective cobalt and nitrogen-doped carbons prepared by simple carbonization of ionic liquids
VL  - 47
IS  - 33
SP  - 14847
EP  - 14858
DO  - 10.1016/j.ijhydene.2022.02.225
ER  - 

@article{
author = "Zdolšek, Nikola and Vujković, Milica and Metin, Önder and Brković, Snežana and Jocić, Ana and Dimitrijević, Aleksandra and Trtić-Petrović, Tatjana M. and Šljukić, Biljana",
year = "2022",
abstract = "Development of cost-effective, bi-functional carbon electrocatalysts via direct carbonization of ionic liquids (bis(cholinium) tetrachlorocobaltate(II) ([Ch]2[CoCl4]) and bis(1-butyl-3-methylimidazolium) tetrachlorocobaltate(II) ([Bmim]2[CoCl4])) is reported herein for the first time. Carbon electrocatalysts, dual-doped with cobalt and nitrogen, were tested for oxygen reduction (ORR) and oxygen evolution (OER) reactions. Both materials show high bi-functional catalytic activity and excellent stability due to synergistic effects arising from the presence of nitrogen and cobalt. Electrocatalyst prepared by carbonization of [Ch]2[CoCl4] show exceptional activity and selectivity toward ORR. Conversely, electrocatalyst prepared from [Bmim]2[CoCl4] showed a slightly better OER performance indicating that different catalytic sites are responsible for O2 reduction and H2O oxidation. Parent CoO particles with graphitic nitrogen boost activity for ORR, while elemental Co supported by nitrogen atoms is responsible for OER activity. Finally, energy consumption during electrolytic oxygen production was calculated revealing energy saving when using two materials as anode electrocatalysts.",
journal = "International Journal of Hydrogen Energy",
title = "Boosting electrocatalysis of oxygen reduction and evolution reactions with cost-effective cobalt and nitrogen-doped carbons prepared by simple carbonization of ionic liquids",
volume = "47",
number = "33",
pages = "14847-14858",
doi = "10.1016/j.ijhydene.2022.02.225"
}

Zdolšek, N., Vujković, M., Metin, Ö., Brković, S., Jocić, A., Dimitrijević, A., Trtić-Petrović, T. M.,& Šljukić, B.. (2022). Boosting electrocatalysis of oxygen reduction and evolution reactions with cost-effective cobalt and nitrogen-doped carbons prepared by simple carbonization of ionic liquids. in International Journal of Hydrogen Energy, 47(33), 14847-14858.
https://doi.org/10.1016/j.ijhydene.2022.02.225

Zdolšek N, Vujković M, Metin Ö, Brković S, Jocić A, Dimitrijević A, Trtić-Petrović TM, Šljukić B. Boosting electrocatalysis of oxygen reduction and evolution reactions with cost-effective cobalt and nitrogen-doped carbons prepared by simple carbonization of ionic liquids. in International Journal of Hydrogen Energy. 2022;47(33):14847-14858.
doi:10.1016/j.ijhydene.2022.02.225 .

Zdolšek, Nikola, Vujković, Milica, Metin, Önder, Brković, Snežana, Jocić, Ana, Dimitrijević, Aleksandra, Trtić-Petrović, Tatjana M., Šljukić, Biljana, "Boosting electrocatalysis of oxygen reduction and evolution reactions with cost-effective cobalt and nitrogen-doped carbons prepared by simple carbonization of ionic liquids" in International Journal of Hydrogen Energy, 47, no. 33 (2022):14847-14858,
https://doi.org/10.1016/j.ijhydene.2022.02.225 . .

TY  - CHAP
AU  - Dimitrijević, Aleksandra
AU  - Jocić, Ana
PY  - 2022
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/10728
AB  - Organophosphorus pesticides (OPs) are highly effective pesticides whose usage accounts for approximately 30% of the pesticides used worldwide. However, overusing OPs in addition to their difficult degradation is threatening environmental and human health even at very low concentrations that are below detection limits of the standard analytical techniques. For that reason, great efforts have been placed in developing rapid and effective preparation methods for OPs prior to analysis, as well as in improving the performance of different analytical techniques for OPs detection from various samples. Much of the recent progress in terms of efficiency and sustainability has come from incorporating ionic liquids (ILs) as solvents or in the creation of ILsupported materials for OPs extraction purposes. ILs are liquid molten salts typically composed of bulky and unsymmetrical organic cations and various anions. ILs are non-flammable and non-volatile, have excellent (electro)chemical stability and solvation ability for a wide range of compounds and materials. Owing to a large number of ion combinations, ILs have been referred to as tunable designer solvents, the feature that overcomes the limited selectivity and efficiency of common organic solvents and allows the development of more effective extraction platforms. This review will summarize the main results achieved by the use of IL-based processes in the extraction of OPs as a part of sample preparation (liquid-liquid microextraction and solid-phase microextraction) or in designing different nanocomposites to improve electrochemical performance for the detection of different OPs. Moreover, this review will outline and discuss achievements in nucleophilic degradation of OPs where IL can act as both the nucleophile and solvent. The key accomplishments and future challenges to the role of ILs in OPs analysis and degradation will be discussed, with particular emphasis on the more benign ILs while foreseeing the development of more sustainable processes. © 2022 Nova Science Publishers, Inc.
T2  - Organophosphates: Detection, Exposure and Occurrence. Volume 1: Impact on Health and the Natural Environment
T1  - Ionic Liquids as Promising Media in (Pre)analytical Treatments and Degradation of Organophosphate Pesticides
SP  - 181
EP  - 214
UR  - https://hdl.handle.net/21.15107/rcub_vinar_10728
ER  - 

@inbook{
author = "Dimitrijević, Aleksandra and Jocić, Ana",
year = "2022",
abstract = "Organophosphorus pesticides (OPs) are highly effective pesticides whose usage accounts for approximately 30% of the pesticides used worldwide. However, overusing OPs in addition to their difficult degradation is threatening environmental and human health even at very low concentrations that are below detection limits of the standard analytical techniques. For that reason, great efforts have been placed in developing rapid and effective preparation methods for OPs prior to analysis, as well as in improving the performance of different analytical techniques for OPs detection from various samples. Much of the recent progress in terms of efficiency and sustainability has come from incorporating ionic liquids (ILs) as solvents or in the creation of ILsupported materials for OPs extraction purposes. ILs are liquid molten salts typically composed of bulky and unsymmetrical organic cations and various anions. ILs are non-flammable and non-volatile, have excellent (electro)chemical stability and solvation ability for a wide range of compounds and materials. Owing to a large number of ion combinations, ILs have been referred to as tunable designer solvents, the feature that overcomes the limited selectivity and efficiency of common organic solvents and allows the development of more effective extraction platforms. This review will summarize the main results achieved by the use of IL-based processes in the extraction of OPs as a part of sample preparation (liquid-liquid microextraction and solid-phase microextraction) or in designing different nanocomposites to improve electrochemical performance for the detection of different OPs. Moreover, this review will outline and discuss achievements in nucleophilic degradation of OPs where IL can act as both the nucleophile and solvent. The key accomplishments and future challenges to the role of ILs in OPs analysis and degradation will be discussed, with particular emphasis on the more benign ILs while foreseeing the development of more sustainable processes. © 2022 Nova Science Publishers, Inc.",
journal = "Organophosphates: Detection, Exposure and Occurrence. Volume 1: Impact on Health and the Natural Environment",
booktitle = "Ionic Liquids as Promising Media in (Pre)analytical Treatments and Degradation of Organophosphate Pesticides",
pages = "181-214",
url = "https://hdl.handle.net/21.15107/rcub_vinar_10728"
}

Dimitrijević, A.,& Jocić, A.. (2022). Ionic Liquids as Promising Media in (Pre)analytical Treatments and Degradation of Organophosphate Pesticides. in Organophosphates: Detection, Exposure and Occurrence. Volume 1: Impact on Health and the Natural Environment, 181-214.
https://hdl.handle.net/21.15107/rcub_vinar_10728

Dimitrijević A, Jocić A. Ionic Liquids as Promising Media in (Pre)analytical Treatments and Degradation of Organophosphate Pesticides. in Organophosphates: Detection, Exposure and Occurrence. Volume 1: Impact on Health and the Natural Environment. 2022;:181-214.
https://hdl.handle.net/21.15107/rcub_vinar_10728 .

Dimitrijević, Aleksandra, Jocić, Ana, "Ionic Liquids as Promising Media in (Pre)analytical Treatments and Degradation of Organophosphate Pesticides" in Organophosphates: Detection, Exposure and Occurrence. Volume 1: Impact on Health and the Natural Environment (2022):181-214,
https://hdl.handle.net/21.15107/rcub_vinar_10728 .

TY  - JOUR
AU  - Marić, Slađana
AU  - Jocić, Ana
AU  - Krstić, Aleksandar
AU  - Momčilović, Miloš
AU  - Ignjatović, Ljubiša M.
AU  - Dimitrijević, Aleksandra
PY  - 2021
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/9845
AB  - Unused/expired pharmaceuticals can be regarded as a source of valuable compounds. Valorization of active pharmaceutical ingredients (APIs) from pharmaceutical waste, as an alternative to widely adopted treatment by incineration, is a big challenge in terms of designing green, efficient, scalable and sustainable separation methods. Concerning these demands, this work aimed to investigate and propose new integrated extraction technology based on aqueous biphasic systems (ABS) with eco-friendly components namely, poloxamer (Pluronic PE 6200) and one of two salts (sodium citrate, cholinium dihydrogenphosphate) or ionic liquid (1-butyl-3-methylimidazolium chloride). Liquid-liquid equilibria of each ABS were determined at room temperature followed by partition experiments in the biphasic medium to evaluate the most favorable systems for APIs extraction (acetaminophen and caffeine from one commercial product, and theophylline from the other). The finely designed ABSs were then employed to separate APIs from pharmaceutical solids and fractionate them. The results show that citrate-based ABS induces the strongest salting-out effect leading to extraction of all APIs to the Pluronic-rich phase with high recovery efficiencies between 79.4 and 97.90%; insoluble compounds were removed as residues while hydrophilic excipients remained in the citrate-rich aqueous phase. Ionic liquid/PL6200-based ABS was further applied to fractionate acetaminophen and caffeine toward opposite phases. These results underpin the viability and adjustability of PL6200-based ABSs within an integrated process, by a deftly selected salting-out agent, as a sustainable and efficient alternative platform with the great potential to be implemented on a larger scale.
T2  - Separation and Purification Technology
T1  - Poloxamer-based aqueous biphasic systems in designing an integrated extraction platform for the valorization of pharmaceutical waste
VL  - 275
SP  - 119101
DO  - 10.1016/j.seppur.2021.119101
ER  - 

@article{
author = "Marić, Slađana and Jocić, Ana and Krstić, Aleksandar and Momčilović, Miloš and Ignjatović, Ljubiša M. and Dimitrijević, Aleksandra",
year = "2021",
abstract = "Unused/expired pharmaceuticals can be regarded as a source of valuable compounds. Valorization of active pharmaceutical ingredients (APIs) from pharmaceutical waste, as an alternative to widely adopted treatment by incineration, is a big challenge in terms of designing green, efficient, scalable and sustainable separation methods. Concerning these demands, this work aimed to investigate and propose new integrated extraction technology based on aqueous biphasic systems (ABS) with eco-friendly components namely, poloxamer (Pluronic PE 6200) and one of two salts (sodium citrate, cholinium dihydrogenphosphate) or ionic liquid (1-butyl-3-methylimidazolium chloride). Liquid-liquid equilibria of each ABS were determined at room temperature followed by partition experiments in the biphasic medium to evaluate the most favorable systems for APIs extraction (acetaminophen and caffeine from one commercial product, and theophylline from the other). The finely designed ABSs were then employed to separate APIs from pharmaceutical solids and fractionate them. The results show that citrate-based ABS induces the strongest salting-out effect leading to extraction of all APIs to the Pluronic-rich phase with high recovery efficiencies between 79.4 and 97.90%; insoluble compounds were removed as residues while hydrophilic excipients remained in the citrate-rich aqueous phase. Ionic liquid/PL6200-based ABS was further applied to fractionate acetaminophen and caffeine toward opposite phases. These results underpin the viability and adjustability of PL6200-based ABSs within an integrated process, by a deftly selected salting-out agent, as a sustainable and efficient alternative platform with the great potential to be implemented on a larger scale.",
journal = "Separation and Purification Technology",
title = "Poloxamer-based aqueous biphasic systems in designing an integrated extraction platform for the valorization of pharmaceutical waste",
volume = "275",
pages = "119101",
doi = "10.1016/j.seppur.2021.119101"
}

Marić, S., Jocić, A., Krstić, A., Momčilović, M., Ignjatović, L. M.,& Dimitrijević, A.. (2021). Poloxamer-based aqueous biphasic systems in designing an integrated extraction platform for the valorization of pharmaceutical waste. in Separation and Purification Technology, 275, 119101.
https://doi.org/10.1016/j.seppur.2021.119101

Marić S, Jocić A, Krstić A, Momčilović M, Ignjatović LM, Dimitrijević A. Poloxamer-based aqueous biphasic systems in designing an integrated extraction platform for the valorization of pharmaceutical waste. in Separation and Purification Technology. 2021;275:119101.
doi:10.1016/j.seppur.2021.119101 .

Marić, Slađana, Jocić, Ana, Krstić, Aleksandar, Momčilović, Miloš, Ignjatović, Ljubiša M., Dimitrijević, Aleksandra, "Poloxamer-based aqueous biphasic systems in designing an integrated extraction platform for the valorization of pharmaceutical waste" in Separation and Purification Technology, 275 (2021):119101,
https://doi.org/10.1016/j.seppur.2021.119101 . .

TY  - CONF
AU  - Jocić, Ana
AU  - Brković, Snežana
AU  - Lazarević-Pašti, Tamara
PY  - 2021
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/11398
AB  - The extensive application of a pesticide, such as malathion, is a potential risk to human health as it can easily enter the food chain. An efficient and economical method for pesticide removal from the environment is necessary. In this work, we prepared a carbon material derived from biowaste (rabbit litter) for the removal of malathion from water. The adsorption capacity of carbon material derived from used litter (UL) is higher than that made from not-used litter. The maximum adsorption capacity of UL is 1.16 x10-5 mol/g for malathion.
PB  - Belgrade : Vinča Institute of Nuclear Sciences
C3  - 7th Workshop Specific Methods for Food Safety and Quality, September 22nd, 2021, Belgrade, Serbia, 15th International Conference on Fundamental and Applied Aspects of Physical Chemistry - Physical Chemistry
T1  - Biowaste-Based Carbon Material for Malathion Removal from Water
SP  - 75
EP  - 78
UR  - https://hdl.handle.net/21.15107/rcub_vinar_11398
ER  - 

@conference{
author = "Jocić, Ana and Brković, Snežana and Lazarević-Pašti, Tamara",
year = "2021",
abstract = "The extensive application of a pesticide, such as malathion, is a potential risk to human health as it can easily enter the food chain. An efficient and economical method for pesticide removal from the environment is necessary. In this work, we prepared a carbon material derived from biowaste (rabbit litter) for the removal of malathion from water. The adsorption capacity of carbon material derived from used litter (UL) is higher than that made from not-used litter. The maximum adsorption capacity of UL is 1.16 x10-5 mol/g for malathion.",
publisher = "Belgrade : Vinča Institute of Nuclear Sciences",
journal = "7th Workshop Specific Methods for Food Safety and Quality, September 22nd, 2021, Belgrade, Serbia, 15th International Conference on Fundamental and Applied Aspects of Physical Chemistry - Physical Chemistry",
title = "Biowaste-Based Carbon Material for Malathion Removal from Water",
pages = "75-78",
url = "https://hdl.handle.net/21.15107/rcub_vinar_11398"
}

Jocić, A., Brković, S.,& Lazarević-Pašti, T.. (2021). Biowaste-Based Carbon Material for Malathion Removal from Water. in 7th Workshop Specific Methods for Food Safety and Quality, September 22nd, 2021, Belgrade, Serbia, 15th International Conference on Fundamental and Applied Aspects of Physical Chemistry - Physical Chemistry
Belgrade : Vinča Institute of Nuclear Sciences., 75-78.
https://hdl.handle.net/21.15107/rcub_vinar_11398

Jocić A, Brković S, Lazarević-Pašti T. Biowaste-Based Carbon Material for Malathion Removal from Water. in 7th Workshop Specific Methods for Food Safety and Quality, September 22nd, 2021, Belgrade, Serbia, 15th International Conference on Fundamental and Applied Aspects of Physical Chemistry - Physical Chemistry. 2021;:75-78.
https://hdl.handle.net/21.15107/rcub_vinar_11398 .

Jocić, Ana, Brković, Snežana, Lazarević-Pašti, Tamara, "Biowaste-Based Carbon Material for Malathion Removal from Water" in 7th Workshop Specific Methods for Food Safety and Quality, September 22nd, 2021, Belgrade, Serbia, 15th International Conference on Fundamental and Applied Aspects of Physical Chemistry - Physical Chemistry (2021):75-78,
https://hdl.handle.net/21.15107/rcub_vinar_11398 .

TY  - JOUR
AU  - Jocić, Ana
AU  - Marić, Slađana
AU  - Dimitrijević, Aleksandra
AU  - Tot, Aleksandar
AU  - Gadžurić, Slobodan
AU  - Vraneš, Milan
AU  - Trtić-Petrović, Tatjana M.
PY  - 2020
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/8835
AB  - This work addresses use of a set of 2-hydroxypropylammonium based protic ionic liquids (PILs) as adjuvants in the aqueous biphasic system (ABS) composed of polyethylene glycol, with molecular weight 2000 g/mol (PEG 2000) and potassium carbonate. The phase diagrams were determined at 25 °C for ABS without and with the addition of 5 wt% of PIL. Comparative analysis of solubility curves indicates that PILs influence liquid-liquid equilibria of PEG 2000-K2CO3 ABS by heightening the hydrophilicity of a PEG-rich phase in various degrees. The compositions of the phases (tie lines) were determined for the selected ABS mixture composition, 26 wt% of PEG 2000 + 10 wt% of K2CO3, without and with 5 wt% of PILs, that is further used for the separation studies. The distribution of PILs between two phases is mainly dependent on specific PEG-PIL interactions and on the PIL content in ABS mixture. The experimental results are supported by molecular simulations that contributed to a broader picture of underlying effects of PILs as adjuvants on ABS formation. The partition of four dye compounds, Remazol Brilliant Blue R (RBBR), Orange II (OII), Rhodamine B (RB) and Congo Red (CR), as probe molecules with different intrinsic properties, was investigated. Obtained results show that the addition of PILs can improve the extraction of hydrophilic and charged compounds as OII, RBBR and CR in PEG-rich phase. On the other hand, it promotes the extraction of hydrophobic and neutral solutes as RB in salt-rich phase. By the addition of the most hydrophilic 3-chloropropanoate based PIL in the PEG 2000-K2CO3 ABS 12 times higher separation factor for OII and RB was achieved. © 2020 Elsevier B.V.
T2  - Journal of Molecular Liquids
T1  - Protic ionic liquids as adjuvants to enhance extraction and separation performance of diverse polarity compounds in PEG-salt based aqueous biphasic system
VL  - 303
SP  - 112484
DO  - 10.1016/j.molliq.2020.112484
ER  - 

@article{
author = "Jocić, Ana and Marić, Slađana and Dimitrijević, Aleksandra and Tot, Aleksandar and Gadžurić, Slobodan and Vraneš, Milan and Trtić-Petrović, Tatjana M.",
year = "2020",
abstract = "This work addresses use of a set of 2-hydroxypropylammonium based protic ionic liquids (PILs) as adjuvants in the aqueous biphasic system (ABS) composed of polyethylene glycol, with molecular weight 2000 g/mol (PEG 2000) and potassium carbonate. The phase diagrams were determined at 25 °C for ABS without and with the addition of 5 wt% of PIL. Comparative analysis of solubility curves indicates that PILs influence liquid-liquid equilibria of PEG 2000-K2CO3 ABS by heightening the hydrophilicity of a PEG-rich phase in various degrees. The compositions of the phases (tie lines) were determined for the selected ABS mixture composition, 26 wt% of PEG 2000 + 10 wt% of K2CO3, without and with 5 wt% of PILs, that is further used for the separation studies. The distribution of PILs between two phases is mainly dependent on specific PEG-PIL interactions and on the PIL content in ABS mixture. The experimental results are supported by molecular simulations that contributed to a broader picture of underlying effects of PILs as adjuvants on ABS formation. The partition of four dye compounds, Remazol Brilliant Blue R (RBBR), Orange II (OII), Rhodamine B (RB) and Congo Red (CR), as probe molecules with different intrinsic properties, was investigated. Obtained results show that the addition of PILs can improve the extraction of hydrophilic and charged compounds as OII, RBBR and CR in PEG-rich phase. On the other hand, it promotes the extraction of hydrophobic and neutral solutes as RB in salt-rich phase. By the addition of the most hydrophilic 3-chloropropanoate based PIL in the PEG 2000-K2CO3 ABS 12 times higher separation factor for OII and RB was achieved. © 2020 Elsevier B.V.",
journal = "Journal of Molecular Liquids",
title = "Protic ionic liquids as adjuvants to enhance extraction and separation performance of diverse polarity compounds in PEG-salt based aqueous biphasic system",
volume = "303",
pages = "112484",
doi = "10.1016/j.molliq.2020.112484"
}

Jocić, A., Marić, S., Dimitrijević, A., Tot, A., Gadžurić, S., Vraneš, M.,& Trtić-Petrović, T. M.. (2020). Protic ionic liquids as adjuvants to enhance extraction and separation performance of diverse polarity compounds in PEG-salt based aqueous biphasic system. in Journal of Molecular Liquids, 303, 112484.
https://doi.org/10.1016/j.molliq.2020.112484

Jocić A, Marić S, Dimitrijević A, Tot A, Gadžurić S, Vraneš M, Trtić-Petrović TM. Protic ionic liquids as adjuvants to enhance extraction and separation performance of diverse polarity compounds in PEG-salt based aqueous biphasic system. in Journal of Molecular Liquids. 2020;303:112484.
doi:10.1016/j.molliq.2020.112484 .

Jocić, Ana, Marić, Slađana, Dimitrijević, Aleksandra, Tot, Aleksandar, Gadžurić, Slobodan, Vraneš, Milan, Trtić-Petrović, Tatjana M., "Protic ionic liquids as adjuvants to enhance extraction and separation performance of diverse polarity compounds in PEG-salt based aqueous biphasic system" in Journal of Molecular Liquids, 303 (2020):112484,
https://doi.org/10.1016/j.molliq.2020.112484 . .

TY  - JOUR
AU  - Dimitrijević, Aleksandra
AU  - Мilićević, Jelena
AU  - Jocić, Ana
AU  - Marić, Slađana
AU  - Trtić-Petrović, Tatjana M.
AU  - Papović, Snežana
AU  - Tot, Aleksandar
AU  - Gadžurić, Slobodan
AU  - Vraneš, Milan
PY  - 2020
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/8833
AB  - Despite a large collection of publications dealing with the characterization of ionic liquid-based aqueous biphasic systems (IL-ABS), a gap still exists regarding the impact of functionalized alkyl side branches and IL positional isomers on phase equilibria. Therefore, this work addresses the investigation of the ability of different methyl substituted pyridinium based ILs on the formation of ABSs with K3PO4. We evaluated the impact of (i) functional groups (hydroxyl or ether) embed in side alkyl chains of pyridinium cations, (ii) positional isomerism of methyl group (ortho, meta and para) and (iii) the IL cation core. Ternary phase diagrams of the ABSs formed by these ILs and K3PO4 and the appropriate tie lines were determined and presented. It is shown that the presence of functionalized alkyl chain largely affects the salting-in behavior of ILs (ILs with the oxygen groups are more difficult to form ABS) while more subtle differences were observed among positional isomers. Based on the obtained results it is concluded that change of biphasic area of ABS is the manifestation of the altered affinity of ILs for water as a consequence of cation structure. Moreover, aiming at gathering a broader picture of the relationship between ILs structure and ABS properties, molecular simulations were performed, and it was showed that the obtained results are consistent with the experimental results. © 2020 Elsevier B.V.
T2  - Fluid Phase Equilibria
T1  - Further insight into the influence of functionalization and positional isomerism of pyridinium ionic liquids on the aqueous two-phase system equilibria
VL  - 512
SP  - 112520
DO  - 10.1016/j.fluid.2020.112520
ER  - 

@article{
author = "Dimitrijević, Aleksandra and Мilićević, Jelena and Jocić, Ana and Marić, Slađana and Trtić-Petrović, Tatjana M. and Papović, Snežana and Tot, Aleksandar and Gadžurić, Slobodan and Vraneš, Milan",
year = "2020",
abstract = "Despite a large collection of publications dealing with the characterization of ionic liquid-based aqueous biphasic systems (IL-ABS), a gap still exists regarding the impact of functionalized alkyl side branches and IL positional isomers on phase equilibria. Therefore, this work addresses the investigation of the ability of different methyl substituted pyridinium based ILs on the formation of ABSs with K3PO4. We evaluated the impact of (i) functional groups (hydroxyl or ether) embed in side alkyl chains of pyridinium cations, (ii) positional isomerism of methyl group (ortho, meta and para) and (iii) the IL cation core. Ternary phase diagrams of the ABSs formed by these ILs and K3PO4 and the appropriate tie lines were determined and presented. It is shown that the presence of functionalized alkyl chain largely affects the salting-in behavior of ILs (ILs with the oxygen groups are more difficult to form ABS) while more subtle differences were observed among positional isomers. Based on the obtained results it is concluded that change of biphasic area of ABS is the manifestation of the altered affinity of ILs for water as a consequence of cation structure. Moreover, aiming at gathering a broader picture of the relationship between ILs structure and ABS properties, molecular simulations were performed, and it was showed that the obtained results are consistent with the experimental results. © 2020 Elsevier B.V.",
journal = "Fluid Phase Equilibria",
title = "Further insight into the influence of functionalization and positional isomerism of pyridinium ionic liquids on the aqueous two-phase system equilibria",
volume = "512",
pages = "112520",
doi = "10.1016/j.fluid.2020.112520"
}

Dimitrijević, A., Мilićević, J., Jocić, A., Marić, S., Trtić-Petrović, T. M., Papović, S., Tot, A., Gadžurić, S.,& Vraneš, M.. (2020). Further insight into the influence of functionalization and positional isomerism of pyridinium ionic liquids on the aqueous two-phase system equilibria. in Fluid Phase Equilibria, 512, 112520.
https://doi.org/10.1016/j.fluid.2020.112520

Dimitrijević A, Мilićević J, Jocić A, Marić S, Trtić-Petrović TM, Papović S, Tot A, Gadžurić S, Vraneš M. Further insight into the influence of functionalization and positional isomerism of pyridinium ionic liquids on the aqueous two-phase system equilibria. in Fluid Phase Equilibria. 2020;512:112520.
doi:10.1016/j.fluid.2020.112520 .

Dimitrijević, Aleksandra, Мilićević, Jelena, Jocić, Ana, Marić, Slađana, Trtić-Petrović, Tatjana M., Papović, Snežana, Tot, Aleksandar, Gadžurić, Slobodan, Vraneš, Milan, "Further insight into the influence of functionalization and positional isomerism of pyridinium ionic liquids on the aqueous two-phase system equilibria" in Fluid Phase Equilibria, 512 (2020):112520,
https://doi.org/10.1016/j.fluid.2020.112520 . .

TY  - JOUR
AU  - Dimitrijević, Aleksandra
AU  - Tavares, Ana Paula M.
AU  - Jocić, Ana
AU  - Marić, Slađana
AU  - Trtić-Petrović, Tatjana M.
AU  - Gadžurić, Slobodan
AU  - Freire, Mara G.
PY  - 2020
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/8995
AB  - Aqueous biphasic systems (ABS) formed by copolymers and ionic liquids (ILs) have demonstrated to be effective separation platforms, but there is still a gap on the complete understanding of the molecular-level mechanisms ruling the two-phase formation for this type of systems. This work addresses the determination of the liquid–liquid equilibrium of ABS composed of cholinium-based salts or cholinium-based ILs and the triblock copolymer Pluronic PE6200 (PL6200). It is demonstrated that PL6200 can form ABS with all investigated cholinium-based salts or ILs, contrarily to most poly(ethylene)glycol polymers, which is due to the presence of hydrophobic propylene oxide (PO) blocks. From the phase diagrams behavior and IL/salt anions properties, it is shown that the formation of ABS with cholinium-based salts is ruled by the anions polar surface and ability to be hydrated, whereas in systems comprising ILs van der Waals interactions between the copolymer and the IL cannot be discarded. The partition of a series of alkaloids in these systems, namely caffeine, nicotine, theophylline, and theobromine, was additionally appraised. It is shown that caffeine, theophylline, and theobromine preferentially migrate to the more hydrophobic PL6200-rich phase, and that their partition depends on the water content in the respective phase, being ruled by the phases’ hydrophobicity. On the other hand, nicotine, with the most prominent hydrophobic character amongst the studied alkaloids, preferentially migrates to the salt- or IL-rich phase, in which interactions occurring between this alkaloid and the IL/salt cannot be discarded. The ABS formed by cholinium dihydrogenphosphate is the most selective system identified to separate nicotine from the remaining alkaloids, giving some insights into their investigation as separation platforms for alkaloids from natural extracts.
T2  - Separation and Purification Technology
T1  - Aqueous biphasic systems comprising copolymers and cholinium-based salts or ionic liquids: Insights on the mechanisms responsible for their creation
VL  - 248
SP  - 117050
DO  - 10.1016/j.seppur.2020.117050
ER  - 

@article{
author = "Dimitrijević, Aleksandra and Tavares, Ana Paula M. and Jocić, Ana and Marić, Slađana and Trtić-Petrović, Tatjana M. and Gadžurić, Slobodan and Freire, Mara G.",
year = "2020",
abstract = "Aqueous biphasic systems (ABS) formed by copolymers and ionic liquids (ILs) have demonstrated to be effective separation platforms, but there is still a gap on the complete understanding of the molecular-level mechanisms ruling the two-phase formation for this type of systems. This work addresses the determination of the liquid–liquid equilibrium of ABS composed of cholinium-based salts or cholinium-based ILs and the triblock copolymer Pluronic PE6200 (PL6200). It is demonstrated that PL6200 can form ABS with all investigated cholinium-based salts or ILs, contrarily to most poly(ethylene)glycol polymers, which is due to the presence of hydrophobic propylene oxide (PO) blocks. From the phase diagrams behavior and IL/salt anions properties, it is shown that the formation of ABS with cholinium-based salts is ruled by the anions polar surface and ability to be hydrated, whereas in systems comprising ILs van der Waals interactions between the copolymer and the IL cannot be discarded. The partition of a series of alkaloids in these systems, namely caffeine, nicotine, theophylline, and theobromine, was additionally appraised. It is shown that caffeine, theophylline, and theobromine preferentially migrate to the more hydrophobic PL6200-rich phase, and that their partition depends on the water content in the respective phase, being ruled by the phases’ hydrophobicity. On the other hand, nicotine, with the most prominent hydrophobic character amongst the studied alkaloids, preferentially migrates to the salt- or IL-rich phase, in which interactions occurring between this alkaloid and the IL/salt cannot be discarded. The ABS formed by cholinium dihydrogenphosphate is the most selective system identified to separate nicotine from the remaining alkaloids, giving some insights into their investigation as separation platforms for alkaloids from natural extracts.",
journal = "Separation and Purification Technology",
title = "Aqueous biphasic systems comprising copolymers and cholinium-based salts or ionic liquids: Insights on the mechanisms responsible for their creation",
volume = "248",
pages = "117050",
doi = "10.1016/j.seppur.2020.117050"
}

Dimitrijević, A., Tavares, A. P. M., Jocić, A., Marić, S., Trtić-Petrović, T. M., Gadžurić, S.,& Freire, M. G.. (2020). Aqueous biphasic systems comprising copolymers and cholinium-based salts or ionic liquids: Insights on the mechanisms responsible for their creation. in Separation and Purification Technology, 248, 117050.
https://doi.org/10.1016/j.seppur.2020.117050

Dimitrijević A, Tavares APM, Jocić A, Marić S, Trtić-Petrović TM, Gadžurić S, Freire MG. Aqueous biphasic systems comprising copolymers and cholinium-based salts or ionic liquids: Insights on the mechanisms responsible for their creation. in Separation and Purification Technology. 2020;248:117050.
doi:10.1016/j.seppur.2020.117050 .

Dimitrijević, Aleksandra, Tavares, Ana Paula M., Jocić, Ana, Marić, Slađana, Trtić-Petrović, Tatjana M., Gadžurić, Slobodan, Freire, Mara G., "Aqueous biphasic systems comprising copolymers and cholinium-based salts or ionic liquids: Insights on the mechanisms responsible for their creation" in Separation and Purification Technology, 248 (2020):117050,
https://doi.org/10.1016/j.seppur.2020.117050 . .

TY  - JOUR
AU  - Dimitrijević, Aleksandra
AU  - Jocić, Ana
AU  - Zec, Nebojša
AU  - Tot, Aleksandar
AU  - Papović, Snežana
AU  - Gadžurić, Slobodan
AU  - Vraneš, Milan
AU  - Trtić-Petrović, Tatjana M.
PY  - 2019
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/8157
AB  - The novel aqueous biphasic systems based on symmetric imidazolium ionic liquids (IL-ABSs)for the extraction of toxic and resistive dyes from water was studied. The cation symmetricity of ILs strongly influence the outstanding ability of 1,3-dibutylimidazolium dicyanamide, [bbim][dca], to generate ABS with the exceptionally low amount of eco-friendly citrate salt. A remarkable potential of [bbim][dca]/citrate based ABS to remove Orange II from wastewater with concentration up to 1000 fold and efficiency above 99.4% in a single step was achieved. The improved safety of proposed method nominates it as promising future strategy for pollution prevention. © 2019 The Korean Society of Industrial and Engineering Chemistry
T2  - Journal of Industrial and Engineering Chemistry
T1  - Improved single-step extraction performance of aqueous biphasic systems using novel symmetric ionic liquids for the decolorisation of toxic dye effluents
VL  - 76
SP  - 500
EP  - 507
DO  - 10.1016/j.jiec.2019.04.017
ER  - 

@article{
author = "Dimitrijević, Aleksandra and Jocić, Ana and Zec, Nebojša and Tot, Aleksandar and Papović, Snežana and Gadžurić, Slobodan and Vraneš, Milan and Trtić-Petrović, Tatjana M.",
year = "2019",
abstract = "The novel aqueous biphasic systems based on symmetric imidazolium ionic liquids (IL-ABSs)for the extraction of toxic and resistive dyes from water was studied. The cation symmetricity of ILs strongly influence the outstanding ability of 1,3-dibutylimidazolium dicyanamide, [bbim][dca], to generate ABS with the exceptionally low amount of eco-friendly citrate salt. A remarkable potential of [bbim][dca]/citrate based ABS to remove Orange II from wastewater with concentration up to 1000 fold and efficiency above 99.4% in a single step was achieved. The improved safety of proposed method nominates it as promising future strategy for pollution prevention. © 2019 The Korean Society of Industrial and Engineering Chemistry",
journal = "Journal of Industrial and Engineering Chemistry",
title = "Improved single-step extraction performance of aqueous biphasic systems using novel symmetric ionic liquids for the decolorisation of toxic dye effluents",
volume = "76",
pages = "500-507",
doi = "10.1016/j.jiec.2019.04.017"
}

Dimitrijević, A., Jocić, A., Zec, N., Tot, A., Papović, S., Gadžurić, S., Vraneš, M.,& Trtić-Petrović, T. M.. (2019). Improved single-step extraction performance of aqueous biphasic systems using novel symmetric ionic liquids for the decolorisation of toxic dye effluents. in Journal of Industrial and Engineering Chemistry, 76, 500-507.
https://doi.org/10.1016/j.jiec.2019.04.017

Dimitrijević A, Jocić A, Zec N, Tot A, Papović S, Gadžurić S, Vraneš M, Trtić-Petrović TM. Improved single-step extraction performance of aqueous biphasic systems using novel symmetric ionic liquids for the decolorisation of toxic dye effluents. in Journal of Industrial and Engineering Chemistry. 2019;76:500-507.
doi:10.1016/j.jiec.2019.04.017 .

Dimitrijević, Aleksandra, Jocić, Ana, Zec, Nebojša, Tot, Aleksandar, Papović, Snežana, Gadžurić, Slobodan, Vraneš, Milan, Trtić-Petrović, Tatjana M., "Improved single-step extraction performance of aqueous biphasic systems using novel symmetric ionic liquids for the decolorisation of toxic dye effluents" in Journal of Industrial and Engineering Chemistry, 76 (2019):500-507,
https://doi.org/10.1016/j.jiec.2019.04.017 . .

TY  - JOUR
AU  - Dimitrijević, Aleksandra
AU  - Jocić, Ana
AU  - Zec, Nebojša
AU  - Tot, Aleksandar
AU  - Papović, Snežana
AU  - Gadžurić, Slobodan
AU  - Vraneš, Milan
AU  - Trtić-Petrović, Tatjana M.
PY  - 2019
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/8168
AB  - The novel aqueous biphasic systems based on symmetric imidazolium ionic liquids (IL-ABSs)for the extraction of toxic and resistive dyes from water was studied. The cation symmetricity of ILs strongly influence the outstanding ability of 1,3-dibutylimidazolium dicyanamide, [bbim][dca], to generate ABS with the exceptionally low amount of eco-friendly citrate salt. A remarkable potential of [bbim][dca]/citrate based ABS to remove Orange II from wastewater with concentration up to 1000 fold and efficiency above 99.4% in a single step was achieved. The improved safety of proposed method nominates it as promising future strategy for pollution prevention.
T2  - Journal of Industrial and Engineering Chemistry
T1  - Improved single-step extraction performance of aqueous biphasic systems using novel symmetric ionic liquids for the decolorisation of toxic dye effluents
VL  - 76
SP  - 500
EP  - 507
DO  - 10.1016/j.jiec.2019.04.017
ER  - 

@article{
author = "Dimitrijević, Aleksandra and Jocić, Ana and Zec, Nebojša and Tot, Aleksandar and Papović, Snežana and Gadžurić, Slobodan and Vraneš, Milan and Trtić-Petrović, Tatjana M.",
year = "2019",
abstract = "The novel aqueous biphasic systems based on symmetric imidazolium ionic liquids (IL-ABSs)for the extraction of toxic and resistive dyes from water was studied. The cation symmetricity of ILs strongly influence the outstanding ability of 1,3-dibutylimidazolium dicyanamide, [bbim][dca], to generate ABS with the exceptionally low amount of eco-friendly citrate salt. A remarkable potential of [bbim][dca]/citrate based ABS to remove Orange II from wastewater with concentration up to 1000 fold and efficiency above 99.4% in a single step was achieved. The improved safety of proposed method nominates it as promising future strategy for pollution prevention.",
journal = "Journal of Industrial and Engineering Chemistry",
title = "Improved single-step extraction performance of aqueous biphasic systems using novel symmetric ionic liquids for the decolorisation of toxic dye effluents",
volume = "76",
pages = "500-507",
doi = "10.1016/j.jiec.2019.04.017"
}

Dimitrijević, A., Jocić, A., Zec, N., Tot, A., Papović, S., Gadžurić, S., Vraneš, M.,& Trtić-Petrović, T. M.. (2019). Improved single-step extraction performance of aqueous biphasic systems using novel symmetric ionic liquids for the decolorisation of toxic dye effluents. in Journal of Industrial and Engineering Chemistry, 76, 500-507.
https://doi.org/10.1016/j.jiec.2019.04.017

Dimitrijević A, Jocić A, Zec N, Tot A, Papović S, Gadžurić S, Vraneš M, Trtić-Petrović TM. Improved single-step extraction performance of aqueous biphasic systems using novel symmetric ionic liquids for the decolorisation of toxic dye effluents. in Journal of Industrial and Engineering Chemistry. 2019;76:500-507.
doi:10.1016/j.jiec.2019.04.017 .

Dimitrijević, Aleksandra, Jocić, Ana, Zec, Nebojša, Tot, Aleksandar, Papović, Snežana, Gadžurić, Slobodan, Vraneš, Milan, Trtić-Petrović, Tatjana M., "Improved single-step extraction performance of aqueous biphasic systems using novel symmetric ionic liquids for the decolorisation of toxic dye effluents" in Journal of Industrial and Engineering Chemistry, 76 (2019):500-507,
https://doi.org/10.1016/j.jiec.2019.04.017 . .

TY  - JOUR
AU  - Vraneš, Milan
AU  - Panić, Jovana
AU  - Tot, Aleksandar
AU  - Popsavin, Mirjana
AU  - Jocić, Ana
AU  - Gadžurić, Slobodan
PY  - 2019
UR  - https://linkinghub.elsevier.com/retrieve/pii/S0021961418307808
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/7943
AB  - In this paper, physicochemical characterization of newly synthesized choline based ionic liquids with five different chelating anions were examined. The ionic liquids (ILs): cholinium-L-lactate, [Ch][Lac], cholinium-picolinate, [Ch][Pic], cholinium-anthranilate, [Ch][Ant], cholinium-oxyquinolinate, [Ch][oQ], and cholinium-diethylenetriaminepentaacetate, [Ch]3[DTPA], were prepared for the first time and their structures were confirmed by IR and 1H and 13C NMR spectra. Also, thermogravimetric analysis (TGA) was applied to determine their thermal stabilities. Based on the measured density values and viscosity in the temperature range from (293.15 to 323.15) K and calculated values of thermal expansion coefficients and activation energy of viscous flow, as well as of computational simulations, the interactions and structures of the investigated ionic liquids were discussed. © 2018 Elsevier Ltd
T2  - The Journal of Chemical Thermodynamics
T1  - Physicochemical characterization of choline based ionic liquids with chelating anions
VL  - 131
SP  - 80
EP  - 87
DO  - 10.1016/j.jct.2018.10.026
ER  - 

@article{
author = "Vraneš, Milan and Panić, Jovana and Tot, Aleksandar and Popsavin, Mirjana and Jocić, Ana and Gadžurić, Slobodan",
year = "2019",
abstract = "In this paper, physicochemical characterization of newly synthesized choline based ionic liquids with five different chelating anions were examined. The ionic liquids (ILs): cholinium-L-lactate, [Ch][Lac], cholinium-picolinate, [Ch][Pic], cholinium-anthranilate, [Ch][Ant], cholinium-oxyquinolinate, [Ch][oQ], and cholinium-diethylenetriaminepentaacetate, [Ch]3[DTPA], were prepared for the first time and their structures were confirmed by IR and 1H and 13C NMR spectra. Also, thermogravimetric analysis (TGA) was applied to determine their thermal stabilities. Based on the measured density values and viscosity in the temperature range from (293.15 to 323.15) K and calculated values of thermal expansion coefficients and activation energy of viscous flow, as well as of computational simulations, the interactions and structures of the investigated ionic liquids were discussed. © 2018 Elsevier Ltd",
journal = "The Journal of Chemical Thermodynamics",
title = "Physicochemical characterization of choline based ionic liquids with chelating anions",
volume = "131",
pages = "80-87",
doi = "10.1016/j.jct.2018.10.026"
}

Vraneš, M., Panić, J., Tot, A., Popsavin, M., Jocić, A.,& Gadžurić, S.. (2019). Physicochemical characterization of choline based ionic liquids with chelating anions. in The Journal of Chemical Thermodynamics, 131, 80-87.
https://doi.org/10.1016/j.jct.2018.10.026

Vraneš M, Panić J, Tot A, Popsavin M, Jocić A, Gadžurić S. Physicochemical characterization of choline based ionic liquids with chelating anions. in The Journal of Chemical Thermodynamics. 2019;131:80-87.
doi:10.1016/j.jct.2018.10.026 .

Vraneš, Milan, Panić, Jovana, Tot, Aleksandar, Popsavin, Mirjana, Jocić, Ana, Gadžurić, Slobodan, "Physicochemical characterization of choline based ionic liquids with chelating anions" in The Journal of Chemical Thermodynamics, 131 (2019):80-87,
https://doi.org/10.1016/j.jct.2018.10.026 . .