TY  - JOUR
AU  - Mihajlovic, Snezana
AU  - Vukčević, Marija
AU  - Pejic, Biljana
AU  - Perić-Grujić, Aleksandra
AU  - Ristić, Mirjana
AU  - Trivunac, Katarina
PY  - 2022
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/4991
AB  - The possibility of using waste cotton and cotton/polyester yarns to remove lead and chromium ions from polluted water was investigated in this work. Structural, morphological, and adsorption properties of yarns were determined by iodine sorption, water retention scanning electron microscopy, Fourier transform infrared spectroscopy, and streaming potential method for determination of an isoelectric point. It was found that the presence of polyester component negatively affects adsorption capacity, through the reduced porosity of cotton/polyester yarn surface, increased surface, and structural crystallinity. Relatively fast adsorption of lead and chromium ions from binary mixture onto cotton and cotton/polyester yarns follows the pseudo-second order kinetic, while equilibrium data fitted better with the Langmuir isotherm model, with maximal adsorption capacity from 259.0 to 824.7 mu g/g. Although, cotton yarn shows slightly higher maximal adsorption capacities, both cotton and cotton/polyester yarns can be utilized as cheap and highly efficient adsorbents for removal of lead and chromium ions from water.
T2  - Journal of Natural Fibers
T1  - Waste Cotton and Cotton/Polyester Yarns as Adsorbents for Removal of Lead and Chromium from Wastewater
EP  - 9873
IS  - 15
SP  - 9860
VL  - 19
DO  - 10.1080/15440478.2021.1993414
ER  - 

@article{
author = "Mihajlovic, Snezana and Vukčević, Marija and Pejic, Biljana and Perić-Grujić, Aleksandra and Ristić, Mirjana and Trivunac, Katarina",
year = "2022",
abstract = "The possibility of using waste cotton and cotton/polyester yarns to remove lead and chromium ions from polluted water was investigated in this work. Structural, morphological, and adsorption properties of yarns were determined by iodine sorption, water retention scanning electron microscopy, Fourier transform infrared spectroscopy, and streaming potential method for determination of an isoelectric point. It was found that the presence of polyester component negatively affects adsorption capacity, through the reduced porosity of cotton/polyester yarn surface, increased surface, and structural crystallinity. Relatively fast adsorption of lead and chromium ions from binary mixture onto cotton and cotton/polyester yarns follows the pseudo-second order kinetic, while equilibrium data fitted better with the Langmuir isotherm model, with maximal adsorption capacity from 259.0 to 824.7 mu g/g. Although, cotton yarn shows slightly higher maximal adsorption capacities, both cotton and cotton/polyester yarns can be utilized as cheap and highly efficient adsorbents for removal of lead and chromium ions from water.",
journal = "Journal of Natural Fibers",
title = "Waste Cotton and Cotton/Polyester Yarns as Adsorbents for Removal of Lead and Chromium from Wastewater",
pages = "9873-9860",
number = "15",
volume = "19",
doi = "10.1080/15440478.2021.1993414"
}

Mihajlovic, S., Vukčević, M., Pejic, B., Perić-Grujić, A., Ristić, M.,& Trivunac, K.. (2022). Waste Cotton and Cotton/Polyester Yarns as Adsorbents for Removal of Lead and Chromium from Wastewater. in Journal of Natural Fibers, 19(15), 9860-9873.
https://doi.org/10.1080/15440478.2021.1993414

Mihajlovic S, Vukčević M, Pejic B, Perić-Grujić A, Ristić M, Trivunac K. Waste Cotton and Cotton/Polyester Yarns as Adsorbents for Removal of Lead and Chromium from Wastewater. in Journal of Natural Fibers. 2022;19(15):9860-9873.
doi:10.1080/15440478.2021.1993414 .

Mihajlovic, Snezana, Vukčević, Marija, Pejic, Biljana, Perić-Grujić, Aleksandra, Ristić, Mirjana, Trivunac, Katarina, "Waste Cotton and Cotton/Polyester Yarns as Adsorbents for Removal of Lead and Chromium from Wastewater" in Journal of Natural Fibers, 19, no. 15 (2022):9860-9873,
https://doi.org/10.1080/15440478.2021.1993414 . .

TY  - JOUR
AU  - Zdujic, Aleksandar
AU  - Trivunac, Katarina
AU  - Pejic, Biljana
AU  - Vukčević, Marija
AU  - Kostić, Mirjana
AU  - Milivojević, Milan
PY  - 2021
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/4969
AB  - Ca-alginate particles (CA) and alginate-impregnated hemp fibers (AH) (both, as prepared, dried, and rehydrated) were used as adsorbents for removal of Ni (II) ions from water. Adsorption was examined in the batch system and experimentally obtained data were analyzed by both linear and nonlinear curve fitting using pseudo-first and pseudo-second-order rate, as well as Langmuir, Freundlich, and Sips equations. The concentration of Ni (II) ions was measured by atomic absorption spectrophotometry, while the Fourier transform infrared spectroscopy was used for characterization of adsorbent surface, before and after the adsorption. Although all tested samples showed similar adsorption capacities of 12 mg/g, it was found that rehydration improves adsorption characteristics of AH and increases the removal efficiency above 90 %. Adsorption of Ni (II) ions can be sufficiently described by both kinetic models and Sips isotherm equation, and this relatively fast process presumably occurs through the mechanism of physisorption and ion-exchange. The obtained results proved that Ca-alginate particles and alginate-impregnated hemp fibers have good potential to reduce nickel concentrations in a cost-effective and efficient manner.
T2  - Fibers and Polymers
T1  - A Comparative Study of Ni (II) Removal from Aqueous Solutions on Ca-Alginate Beads and Alginate-Impregnated Hemp Fibers
EP  - 18
IS  - 1
SP  - 9
VL  - 22
DO  - 10.1007/s12221-021-9814-6
ER  - 

@article{
author = "Zdujic, Aleksandar and Trivunac, Katarina and Pejic, Biljana and Vukčević, Marija and Kostić, Mirjana and Milivojević, Milan",
year = "2021",
abstract = "Ca-alginate particles (CA) and alginate-impregnated hemp fibers (AH) (both, as prepared, dried, and rehydrated) were used as adsorbents for removal of Ni (II) ions from water. Adsorption was examined in the batch system and experimentally obtained data were analyzed by both linear and nonlinear curve fitting using pseudo-first and pseudo-second-order rate, as well as Langmuir, Freundlich, and Sips equations. The concentration of Ni (II) ions was measured by atomic absorption spectrophotometry, while the Fourier transform infrared spectroscopy was used for characterization of adsorbent surface, before and after the adsorption. Although all tested samples showed similar adsorption capacities of 12 mg/g, it was found that rehydration improves adsorption characteristics of AH and increases the removal efficiency above 90 %. Adsorption of Ni (II) ions can be sufficiently described by both kinetic models and Sips isotherm equation, and this relatively fast process presumably occurs through the mechanism of physisorption and ion-exchange. The obtained results proved that Ca-alginate particles and alginate-impregnated hemp fibers have good potential to reduce nickel concentrations in a cost-effective and efficient manner.",
journal = "Fibers and Polymers",
title = "A Comparative Study of Ni (II) Removal from Aqueous Solutions on Ca-Alginate Beads and Alginate-Impregnated Hemp Fibers",
pages = "18-9",
number = "1",
volume = "22",
doi = "10.1007/s12221-021-9814-6"
}

Zdujic, A., Trivunac, K., Pejic, B., Vukčević, M., Kostić, M.,& Milivojević, M.. (2021). A Comparative Study of Ni (II) Removal from Aqueous Solutions on Ca-Alginate Beads and Alginate-Impregnated Hemp Fibers. in Fibers and Polymers, 22(1), 9-18.
https://doi.org/10.1007/s12221-021-9814-6

Zdujic A, Trivunac K, Pejic B, Vukčević M, Kostić M, Milivojević M. A Comparative Study of Ni (II) Removal from Aqueous Solutions on Ca-Alginate Beads and Alginate-Impregnated Hemp Fibers. in Fibers and Polymers. 2021;22(1):9-18.
doi:10.1007/s12221-021-9814-6 .

Zdujic, Aleksandar, Trivunac, Katarina, Pejic, Biljana, Vukčević, Marija, Kostić, Mirjana, Milivojević, Milan, "A Comparative Study of Ni (II) Removal from Aqueous Solutions on Ca-Alginate Beads and Alginate-Impregnated Hemp Fibers" in Fibers and Polymers, 22, no. 1 (2021):9-18,
https://doi.org/10.1007/s12221-021-9814-6 . .