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 . .