TY  - JOUR
AU  - Budimirović, Dragoslav
AU  - Velicković, Zlate
AU  - Djokić, Veljko
AU  - Milosauljević, Milutin
AU  - Markovski, Jasmina
AU  - Lević, Steva
AU  - Marinković, Aleksandar D.
PY  - 2017
UR  - http://aspace.agrif.bg.ac.rs/handle/123456789/4385
AB  - A novel adsorbents, 6-arm amino polyethylene glycol functionalized multiwall carbon nanotubes (PEG/MWCNT) loaded with alpha-FeOOH (Fe/PEG/MWCNT), and hybrid alpha-FeOOH/alpha-MnO2 nano-deposit (Fe-Mn/PEG/MWCNT) were used for As(V) removal. In a batch test, the influence of pH, contact time, initial ion concentration and temperature on adsorption efficiency was studied. Time-dependent adsorption was best described by pseudo-second-order kinetic model and Weber-Morris model which predicted intra-particle diffusion as a rate controlling step of overall process. Competitive kinetic study in the presence of interfering ions shows low detrimental effect on both capacity and kinetic of As(V) removal. Thermodynamic parameters showed that the adsorption was spontaneous and endothermic processes. Influences of the pH, iron oxide loading and interfering ions were modeled by using Visual MINTEQ software. High adsorption capacities: 49.39 and 59.78 mg g(-1) were obtained for Fe/- and Fe-Mn/PEG/MWCNT, respectively, and multi-cycle reusability indicated high applicability of obtained material. Two step removal process, in a batch study, was successfully performed by using PEG/MWCNT for cations removal in the first step, and Fe or Fe-Mn/PEG/MWCNT for As(V) removal in the second.
PB  - Inst Chemical Engineers, Rugby
T2  - Chemical Engineering Research & Design
T1  - Efficient As(V) removal by alpha-FeOOH and alpha-FeOOH/alpha-MnO2 embedded PEG-6-arm functionalized multiwall carbon nanotubes
EP  - 86
SP  - 75
VL  - 119
DO  - 10.1016/j.cherd.2017.01.010
ER  - 

@article{
author = "Budimirović, Dragoslav and Velicković, Zlate and Djokić, Veljko and Milosauljević, Milutin and Markovski, Jasmina and Lević, Steva and Marinković, Aleksandar D.",
year = "2017",
abstract = "A novel adsorbents, 6-arm amino polyethylene glycol functionalized multiwall carbon nanotubes (PEG/MWCNT) loaded with alpha-FeOOH (Fe/PEG/MWCNT), and hybrid alpha-FeOOH/alpha-MnO2 nano-deposit (Fe-Mn/PEG/MWCNT) were used for As(V) removal. In a batch test, the influence of pH, contact time, initial ion concentration and temperature on adsorption efficiency was studied. Time-dependent adsorption was best described by pseudo-second-order kinetic model and Weber-Morris model which predicted intra-particle diffusion as a rate controlling step of overall process. Competitive kinetic study in the presence of interfering ions shows low detrimental effect on both capacity and kinetic of As(V) removal. Thermodynamic parameters showed that the adsorption was spontaneous and endothermic processes. Influences of the pH, iron oxide loading and interfering ions were modeled by using Visual MINTEQ software. High adsorption capacities: 49.39 and 59.78 mg g(-1) were obtained for Fe/- and Fe-Mn/PEG/MWCNT, respectively, and multi-cycle reusability indicated high applicability of obtained material. Two step removal process, in a batch study, was successfully performed by using PEG/MWCNT for cations removal in the first step, and Fe or Fe-Mn/PEG/MWCNT for As(V) removal in the second.",
publisher = "Inst Chemical Engineers, Rugby",
journal = "Chemical Engineering Research & Design",
title = "Efficient As(V) removal by alpha-FeOOH and alpha-FeOOH/alpha-MnO2 embedded PEG-6-arm functionalized multiwall carbon nanotubes",
pages = "86-75",
volume = "119",
doi = "10.1016/j.cherd.2017.01.010"
}

Budimirović, D., Velicković, Z., Djokić, V., Milosauljević, M., Markovski, J., Lević, S.,& Marinković, A. D.. (2017). Efficient As(V) removal by alpha-FeOOH and alpha-FeOOH/alpha-MnO2 embedded PEG-6-arm functionalized multiwall carbon nanotubes. in Chemical Engineering Research & Design
Inst Chemical Engineers, Rugby., 119, 75-86.
https://doi.org/10.1016/j.cherd.2017.01.010

Budimirović D, Velicković Z, Djokić V, Milosauljević M, Markovski J, Lević S, Marinković AD. Efficient As(V) removal by alpha-FeOOH and alpha-FeOOH/alpha-MnO2 embedded PEG-6-arm functionalized multiwall carbon nanotubes. in Chemical Engineering Research & Design. 2017;119:75-86.
doi:10.1016/j.cherd.2017.01.010 .

Budimirović, Dragoslav, Velicković, Zlate, Djokić, Veljko, Milosauljević, Milutin, Markovski, Jasmina, Lević, Steva, Marinković, Aleksandar D., "Efficient As(V) removal by alpha-FeOOH and alpha-FeOOH/alpha-MnO2 embedded PEG-6-arm functionalized multiwall carbon nanotubes" in Chemical Engineering Research & Design, 119 (2017):75-86,
https://doi.org/10.1016/j.cherd.2017.01.010 . .