As(III) and As(V) Sorption on MnO2 Synthesized by Mechano-chemical Reaction from Aqueous phase
No Thumbnail
Authors
Anđelković, IvanManojlović, Dragan D.
Škrivanj, Sandra B.
Pavlovic, B. M.
Amaizah, N. R.
Roglić, Goran
Article (Published version)
Metadata
Show full item recordAbstract
Nanoparticles of manganese-dioxide synthesized by mechano-chemical reaction were used for As(III) and As(V) sorption from water environment. The influence of a milling time of manganese-dioxide on sorption was examined with batch procedure. Sorption as a function of contact time was investigated. Kinetic of sorption, for both As(III) and As(V), was fast. The equilibrium condition for milled sorbents was achieved after one hour of mixing. Experimental data were fitted to Freundlich and Langmuir adsorption models. Both models represent experimental data well with slightly better regression coefficient for Freundlich isotherm model. With the increase of the milling time manganese-dioxide adsorption capacity for As(III) and As(V) increased. The decrease of average particle size with milling could be responsible for increase of sorption capacity. The influence of pH on sorption was also investigated. The sorption of both, As(III) and As(V), in investigated pH range (6.0-9.0) was not signifi...cantly disturbed and showed similar behaviour, what could indirectly imply oxidation of As(III) to As(V) before sorption.
Keywords:
Arsenite / arsenate / Removal / mechano-chemical reaction / Drinking waterSource:
International Journal of Environmental Research, 2013, 7, 2, 395-402Publisher:
- Univ Tehran, Tehran
Collections
Institution/Community
Hemijski fakultet / Faculty of ChemistryTY - JOUR AU - Anđelković, Ivan AU - Manojlović, Dragan D. AU - Škrivanj, Sandra B. AU - Pavlovic, B. M. AU - Amaizah, N. R. AU - Roglić, Goran PY - 2013 UR - https://cherry.chem.bg.ac.rs/handle/123456789/1610 AB - Nanoparticles of manganese-dioxide synthesized by mechano-chemical reaction were used for As(III) and As(V) sorption from water environment. The influence of a milling time of manganese-dioxide on sorption was examined with batch procedure. Sorption as a function of contact time was investigated. Kinetic of sorption, for both As(III) and As(V), was fast. The equilibrium condition for milled sorbents was achieved after one hour of mixing. Experimental data were fitted to Freundlich and Langmuir adsorption models. Both models represent experimental data well with slightly better regression coefficient for Freundlich isotherm model. With the increase of the milling time manganese-dioxide adsorption capacity for As(III) and As(V) increased. The decrease of average particle size with milling could be responsible for increase of sorption capacity. The influence of pH on sorption was also investigated. The sorption of both, As(III) and As(V), in investigated pH range (6.0-9.0) was not significantly disturbed and showed similar behaviour, what could indirectly imply oxidation of As(III) to As(V) before sorption. PB - Univ Tehran, Tehran T2 - International Journal of Environmental Research T1 - As(III) and As(V) Sorption on MnO2 Synthesized by Mechano-chemical Reaction from Aqueous phase VL - 7 IS - 2 SP - 395 EP - 402 UR - https://hdl.handle.net/21.15107/rcub_cherry_1610 ER -
@article{ author = "Anđelković, Ivan and Manojlović, Dragan D. and Škrivanj, Sandra B. and Pavlovic, B. M. and Amaizah, N. R. and Roglić, Goran", year = "2013", abstract = "Nanoparticles of manganese-dioxide synthesized by mechano-chemical reaction were used for As(III) and As(V) sorption from water environment. The influence of a milling time of manganese-dioxide on sorption was examined with batch procedure. Sorption as a function of contact time was investigated. Kinetic of sorption, for both As(III) and As(V), was fast. The equilibrium condition for milled sorbents was achieved after one hour of mixing. Experimental data were fitted to Freundlich and Langmuir adsorption models. Both models represent experimental data well with slightly better regression coefficient for Freundlich isotherm model. With the increase of the milling time manganese-dioxide adsorption capacity for As(III) and As(V) increased. The decrease of average particle size with milling could be responsible for increase of sorption capacity. The influence of pH on sorption was also investigated. The sorption of both, As(III) and As(V), in investigated pH range (6.0-9.0) was not significantly disturbed and showed similar behaviour, what could indirectly imply oxidation of As(III) to As(V) before sorption.", publisher = "Univ Tehran, Tehran", journal = "International Journal of Environmental Research", title = "As(III) and As(V) Sorption on MnO2 Synthesized by Mechano-chemical Reaction from Aqueous phase", volume = "7", number = "2", pages = "395-402", url = "https://hdl.handle.net/21.15107/rcub_cherry_1610" }
Anđelković, I., Manojlović, D. D., Škrivanj, S. B., Pavlovic, B. M., Amaizah, N. R.,& Roglić, G.. (2013). As(III) and As(V) Sorption on MnO2 Synthesized by Mechano-chemical Reaction from Aqueous phase. in International Journal of Environmental Research Univ Tehran, Tehran., 7(2), 395-402. https://hdl.handle.net/21.15107/rcub_cherry_1610
Anđelković I, Manojlović DD, Škrivanj SB, Pavlovic BM, Amaizah NR, Roglić G. As(III) and As(V) Sorption on MnO2 Synthesized by Mechano-chemical Reaction from Aqueous phase. in International Journal of Environmental Research. 2013;7(2):395-402. https://hdl.handle.net/21.15107/rcub_cherry_1610 .
Anđelković, Ivan, Manojlović, Dragan D., Škrivanj, Sandra B., Pavlovic, B. M., Amaizah, N. R., Roglić, Goran, "As(III) and As(V) Sorption on MnO2 Synthesized by Mechano-chemical Reaction from Aqueous phase" in International Journal of Environmental Research, 7, no. 2 (2013):395-402, https://hdl.handle.net/21.15107/rcub_cherry_1610 .