TY  - JOUR
AU  - Veličković, Zlate
AU  - Vuković, Goran D.
AU  - Marinković, Aleksandar
AU  - Moldovan, Maria-Simona
AU  - Perić-Grujić, Aleksandra
AU  - Uskoković, Petar
AU  - Ristić, Mirjana
PY  - 2012
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/2202
AB  - New criteria in assessing the quality of drinking water reduced the maximum permissible concentration of arsenic from 50 mu g L-1 to 10 mu g L-1 and set a requirement for the development of new technologies for arsenic removal. In this paper, ethylenediamine functionalized multiwall carbon nanotubes (e-MWCNT) were loaded with iron(III) oxide in the goethite form, by precipitation of adsorbed Fe3+ and oxidized Fe2+ using base, in that way e-MWCNT/Fe3+ and e-MWCNT/Fe2+ adsorbents, respectively, were obtained. The influence of pH on the As(V) and As(III) removal from drinking water was studied in a batch system, of pH range 3-10 and initial arsenic concentration 0.05-4 mg L-1. Time dependent As(V) adsorption and adsorption data can be described by pseudo-second-order kinetic model and by Freundlich isotherm, applying linear and non-linear fitting methods. The maximum adsorption capacities obtained from Langmuir model for As(V) on e-MWCNT/Fe2+ and e-MWCNT/Fe3+ were 23.47 and 13.74 mg g(-1) at 25 degrees C. respectively. Thermodynamic parameters showed that the adsorption of As(V) was spontaneous and endothermic for both e-MWCNT/Fe2+ and e-MWCNT/Fe3+. Influences of the pH, iron(III) oxide loading and interfering ions were modeled by MINTEQ program, and good agreement between experimental and modeling data was obtained.
PB  - Elsevier Science Sa, Lausanne
T2  - Chemical Engineering Journal
T1  - Adsorption of arsenate on iron(III) oxide coated ethylenediamine functionalized multiwall carbon nanotubes
EP  - 181
SP  - 174
VL  - 181
DO  - 10.1016/j.cej.2011.11.052
ER  - 

@article{
author = "Veličković, Zlate and Vuković, Goran D. and Marinković, Aleksandar and Moldovan, Maria-Simona and Perić-Grujić, Aleksandra and Uskoković, Petar and Ristić, Mirjana",
year = "2012",
abstract = "New criteria in assessing the quality of drinking water reduced the maximum permissible concentration of arsenic from 50 mu g L-1 to 10 mu g L-1 and set a requirement for the development of new technologies for arsenic removal. In this paper, ethylenediamine functionalized multiwall carbon nanotubes (e-MWCNT) were loaded with iron(III) oxide in the goethite form, by precipitation of adsorbed Fe3+ and oxidized Fe2+ using base, in that way e-MWCNT/Fe3+ and e-MWCNT/Fe2+ adsorbents, respectively, were obtained. The influence of pH on the As(V) and As(III) removal from drinking water was studied in a batch system, of pH range 3-10 and initial arsenic concentration 0.05-4 mg L-1. Time dependent As(V) adsorption and adsorption data can be described by pseudo-second-order kinetic model and by Freundlich isotherm, applying linear and non-linear fitting methods. The maximum adsorption capacities obtained from Langmuir model for As(V) on e-MWCNT/Fe2+ and e-MWCNT/Fe3+ were 23.47 and 13.74 mg g(-1) at 25 degrees C. respectively. Thermodynamic parameters showed that the adsorption of As(V) was spontaneous and endothermic for both e-MWCNT/Fe2+ and e-MWCNT/Fe3+. Influences of the pH, iron(III) oxide loading and interfering ions were modeled by MINTEQ program, and good agreement between experimental and modeling data was obtained.",
publisher = "Elsevier Science Sa, Lausanne",
journal = "Chemical Engineering Journal",
title = "Adsorption of arsenate on iron(III) oxide coated ethylenediamine functionalized multiwall carbon nanotubes",
pages = "181-174",
volume = "181",
doi = "10.1016/j.cej.2011.11.052"
}

Veličković, Z., Vuković, G. D., Marinković, A., Moldovan, M., Perić-Grujić, A., Uskoković, P.,& Ristić, M.. (2012). Adsorption of arsenate on iron(III) oxide coated ethylenediamine functionalized multiwall carbon nanotubes. in Chemical Engineering Journal
Elsevier Science Sa, Lausanne., 181, 174-181.
https://doi.org/10.1016/j.cej.2011.11.052

Veličković Z, Vuković GD, Marinković A, Moldovan M, Perić-Grujić A, Uskoković P, Ristić M. Adsorption of arsenate on iron(III) oxide coated ethylenediamine functionalized multiwall carbon nanotubes. in Chemical Engineering Journal. 2012;181:174-181.
doi:10.1016/j.cej.2011.11.052 .

Veličković, Zlate, Vuković, Goran D., Marinković, Aleksandar, Moldovan, Maria-Simona, Perić-Grujić, Aleksandra, Uskoković, Petar, Ristić, Mirjana, "Adsorption of arsenate on iron(III) oxide coated ethylenediamine functionalized multiwall carbon nanotubes" in Chemical Engineering Journal, 181 (2012):174-181,
https://doi.org/10.1016/j.cej.2011.11.052 . .