Efficient As(V) removal by alpha-FeOOH and alpha-FeOOH/alpha-MnO2 embedded PEG-6-arm functionalized multiwall carbon nanotubes
Само за регистроване кориснике
2017
Аутори
Budimirović, DragoslavVeličković, Zlate S.
Đokić, Veljko R.
Milosavljević, Milutin
Markovski, Jasmina S.
Lević, Steva
Marinković, Aleksandar D.
Чланак у часопису (Објављена верзија)
Метаподаци
Приказ свих података о документуАпстракт
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/MWCN...T, 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. (C) 2017 Institution of Chemical Engineers. Published by Elsevier B.V. All rights reserved.
Кључне речи:
Arsenic / Adsorption / Nanocomposites / MWCNT / alpha-FeOOH / alpha-MnO2Извор:
Chemical Engineering Research and Design, 2017, 119, 75-86Финансирање / пројекти:
- Синтеза, развој технологија добијања и примена наноструктурних мултифункционалних материјала дефинисаних својстава (RS-MESTD-Integrated and Interdisciplinary Research (IIR or III)-45019)
- University of Defense [VA-TT/4-16-18]
DOI: 10.1016/j.cherd.2017.01.010
ISSN: 0263-8762; 1744-3563
WoS: 000396958900008
Scopus: 2-s2.0-85010382715
Колекције
Институција/група
VinčaTY - JOUR AU - Budimirović, Dragoslav AU - Veličković, Zlate S. AU - Đokić, Veljko R. AU - Milosavljević, Milutin AU - Markovski, Jasmina S. AU - Lević, Steva AU - Marinković, Aleksandar D. PY - 2017 UR - https://vinar.vin.bg.ac.rs/handle/123456789/1467 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. (C) 2017 Institution of Chemical Engineers. Published by Elsevier B.V. All rights reserved. T2 - Chemical Engineering Research and Design T1 - Efficient As(V) removal by alpha-FeOOH and alpha-FeOOH/alpha-MnO2 embedded PEG-6-arm functionalized multiwall carbon nanotubes VL - 119 SP - 75 EP - 86 DO - 10.1016/j.cherd.2017.01.010 ER -
@article{ author = "Budimirović, Dragoslav and Veličković, Zlate S. and Đokić, Veljko R. and Milosavljević, Milutin and Markovski, Jasmina S. 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. (C) 2017 Institution of Chemical Engineers. Published by Elsevier B.V. All rights reserved.", journal = "Chemical Engineering Research and Design", title = "Efficient As(V) removal by alpha-FeOOH and alpha-FeOOH/alpha-MnO2 embedded PEG-6-arm functionalized multiwall carbon nanotubes", volume = "119", pages = "75-86", doi = "10.1016/j.cherd.2017.01.010" }
Budimirović, D., Veličković, Z. S., Đokić, V. R., Milosavljević, M., Markovski, J. S., 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 and Design, 119, 75-86. https://doi.org/10.1016/j.cherd.2017.01.010
Budimirović D, Veličković ZS, Đokić VR, Milosavljević M, Markovski JS, 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 and Design. 2017;119:75-86. doi:10.1016/j.cherd.2017.01.010 .
Budimirović, Dragoslav, Veličković, Zlate S., Đokić, Veljko R., Milosavljević, Milutin, Markovski, Jasmina S., 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 and Design, 119 (2017):75-86, https://doi.org/10.1016/j.cherd.2017.01.010 . .
Related items
Showing items related by title, author, creator and subject.
-
Arsenate adsorption on waste eggshell modified by goethite, alpha-MnO2 and goethite/alpha-MnO2
Markovski, Jasmina S.; Markovic, Dana D.; Đokić, Veljko R.; Mitrić, Miodrag; Ristić, Mirjana; Onjia, Antonije E.; Marinković, Aleksandar D. (Chemical Engineering Journal, 2014) -
Ultrasonic assisted arsenate adsorption on solvothermally synthesized calcite modified by goethite, alpha-MnO2 and goethite/alpha-MnO2
Markovski, Jasmina S.; Đokić, Veljko R.; Milosavljevic, Milutin; Mitrić, Miodrag; Perić-Grujić, Aleksandra A.; Onjia, Antonije E.; Marinković, Aleksandar D. (Ultrasonics Sonochemistry, 2014) -
Rapid LSC method for direct alpha/beta measurements in waters / Direktna metoda za određivanje ukupne alfa/beta aktivnosti u vodama
Stojković, Ivana; Todorović, Nataša; Nikolov, Jovana; Tenjović, Branislava (Београд : Институт за нуклеарне науке "Винча" : Друштво за заштиту од зрачења Србије и Црне Горе, 2017)