Adsorption of arsenate on iron(III) oxide coated ethylenediamine functionalized multiwall carbon nanotubes
Само за регистроване кориснике
2012
Аутори
Veličković, ZlateVuković, Goran D.
Marinković, Aleksandar
Moldovan, Maria-Simona
Perić-Grujić, Aleksandra
Uskoković, Petar
Ristić, Mirjana
Чланак у часопису (Објављена верзија)
Метаподаци
Приказ свих података о документуАпстракт
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.
Кључне речи:
Arsenic / Multiwall carbon nanotubes / Amidation / Adsorption / Iron(III) oxideИзвор:
Chemical Engineering Journal, 2012, 181, 174-181Издавач:
- Elsevier Science Sa, Lausanne
Финансирање / пројекти:
- Reinforcing of Nanotechnology and Functional Materials Centre (EU-245916)
- Синтеза, развој технологија добијања и примена наноструктурних мултифункционалних материјала дефинисаних својстава (RS-45019)
- Развој и примена метода и материјала за мониторинг нових загађујућих и токсичних органских материја и тешких метала (RS-172007)
DOI: 10.1016/j.cej.2011.11.052
ISSN: 1385-8947
WoS: 000301087000018
Scopus: 2-s2.0-84856334922
Институција/група
Tehnološko-metalurški fakultetTY - 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 . .