The sorption of inorganic arsenic on modified sepiolite: the effect of hydrated iron(III) oxide
2014
Autori
Ilić, Nikola I.Lazarević, Slavica S.
Rajaković-Ognjanović, Vladana
Rajaković, Ljubinka V.
Janacković, Đorđe T.
Petrović, Rada D.
Članak u časopisu (Objavljena verzija)
Metapodaci
Prikaz svih podataka o dokumentuApstrakt
The sorption of inorganic arsenic species, As(III) and As(V), from water by sepiolite modified with hydrated iron(III) oxide was investigated at 25 degrees C through batch studies. The influence of the initial pH value, the initial As concentration, the contact time and the type of water on the sorption capacity was investigated. Two types of water were used, deionised and groundwater. The maximal sorption capacity for As(III) dissolved in deionised water was observed at an initial and final pH value 7.0, while the bonding of As(V) was observed to be almost pH independent for pH value in the range from 2.0 to 7.0, while a significant decrease in the sorption capacity was observed at pH values above 7.0. The sorption capacity at initial pH 7.0 was about 10 mg g(-1) for As(III) and 4.2 mg g(-1) for As(V) in deionised water. The capacity in groundwater was decreased by 40 % for As(III) and by 20 % for As(V). The Langmuir model and pseudo-second order kinetic model revealed good agreement ...with the experimental results. The results showed that Fe(III)-modified sepiolite exhibits significant affinity for arsenic removal and it has the potential for application in water purification processes.
Ključne reči:
arsenic(III) / arsenic(V) / Fe(III)-sepiolite / sorption / pH influenceIzvor:
Journal of the Serbian Chemical Society, 2014, 79, 7, 815-828Izdavač:
- Srpsko hemijsko društvo, Beograd
Finansiranje / projekti:
- Sinteza, razvoj tehnologija dobijanja i primena nanostrukturnih multifunkcionalnih materijala definisanih svojstava (RS-MESTD-Integrated and Interdisciplinary Research (IIR or III)-45019)
- Nove tehnologije za monitoring i zaštitu životnog okruženja od štetnih hemijskih supstanci i radijacionog opterećenja (RS-MESTD-Integrated and Interdisciplinary Research (IIR or III)-43009)
- Sistemi za odvođenje kišnih voda kao deo urbane i saobraćajne infrastrukture (RS-MESTD-Technological Development (TD or TR)-37010)
DOI: 10.2298/JSC130912017I
ISSN: 0352-5139
WoS: 000339931600006
Scopus: 2-s2.0-84940220069
Kolekcije
Institucija/grupa
GraFarTY - JOUR AU - Ilić, Nikola I. AU - Lazarević, Slavica S. AU - Rajaković-Ognjanović, Vladana AU - Rajaković, Ljubinka V. AU - Janacković, Đorđe T. AU - Petrović, Rada D. PY - 2014 UR - https://grafar.grf.bg.ac.rs/handle/123456789/611 AB - The sorption of inorganic arsenic species, As(III) and As(V), from water by sepiolite modified with hydrated iron(III) oxide was investigated at 25 degrees C through batch studies. The influence of the initial pH value, the initial As concentration, the contact time and the type of water on the sorption capacity was investigated. Two types of water were used, deionised and groundwater. The maximal sorption capacity for As(III) dissolved in deionised water was observed at an initial and final pH value 7.0, while the bonding of As(V) was observed to be almost pH independent for pH value in the range from 2.0 to 7.0, while a significant decrease in the sorption capacity was observed at pH values above 7.0. The sorption capacity at initial pH 7.0 was about 10 mg g(-1) for As(III) and 4.2 mg g(-1) for As(V) in deionised water. The capacity in groundwater was decreased by 40 % for As(III) and by 20 % for As(V). The Langmuir model and pseudo-second order kinetic model revealed good agreement with the experimental results. The results showed that Fe(III)-modified sepiolite exhibits significant affinity for arsenic removal and it has the potential for application in water purification processes. PB - Srpsko hemijsko društvo, Beograd T2 - Journal of the Serbian Chemical Society T1 - The sorption of inorganic arsenic on modified sepiolite: the effect of hydrated iron(III) oxide EP - 828 IS - 7 SP - 815 VL - 79 DO - 10.2298/JSC130912017I ER -
@article{ author = "Ilić, Nikola I. and Lazarević, Slavica S. and Rajaković-Ognjanović, Vladana and Rajaković, Ljubinka V. and Janacković, Đorđe T. and Petrović, Rada D.", year = "2014", abstract = "The sorption of inorganic arsenic species, As(III) and As(V), from water by sepiolite modified with hydrated iron(III) oxide was investigated at 25 degrees C through batch studies. The influence of the initial pH value, the initial As concentration, the contact time and the type of water on the sorption capacity was investigated. Two types of water were used, deionised and groundwater. The maximal sorption capacity for As(III) dissolved in deionised water was observed at an initial and final pH value 7.0, while the bonding of As(V) was observed to be almost pH independent for pH value in the range from 2.0 to 7.0, while a significant decrease in the sorption capacity was observed at pH values above 7.0. The sorption capacity at initial pH 7.0 was about 10 mg g(-1) for As(III) and 4.2 mg g(-1) for As(V) in deionised water. The capacity in groundwater was decreased by 40 % for As(III) and by 20 % for As(V). The Langmuir model and pseudo-second order kinetic model revealed good agreement with the experimental results. The results showed that Fe(III)-modified sepiolite exhibits significant affinity for arsenic removal and it has the potential for application in water purification processes.", publisher = "Srpsko hemijsko društvo, Beograd", journal = "Journal of the Serbian Chemical Society", title = "The sorption of inorganic arsenic on modified sepiolite: the effect of hydrated iron(III) oxide", pages = "828-815", number = "7", volume = "79", doi = "10.2298/JSC130912017I" }
Ilić, N. I., Lazarević, S. S., Rajaković-Ognjanović, V., Rajaković, L. V., Janacković, Đ. T.,& Petrović, R. D.. (2014). The sorption of inorganic arsenic on modified sepiolite: the effect of hydrated iron(III) oxide. in Journal of the Serbian Chemical Society Srpsko hemijsko društvo, Beograd., 79(7), 815-828. https://doi.org/10.2298/JSC130912017I
Ilić NI, Lazarević SS, Rajaković-Ognjanović V, Rajaković LV, Janacković ĐT, Petrović RD. The sorption of inorganic arsenic on modified sepiolite: the effect of hydrated iron(III) oxide. in Journal of the Serbian Chemical Society. 2014;79(7):815-828. doi:10.2298/JSC130912017I .
Ilić, Nikola I., Lazarević, Slavica S., Rajaković-Ognjanović, Vladana, Rajaković, Ljubinka V., Janacković, Đorđe T., Petrović, Rada D., "The sorption of inorganic arsenic on modified sepiolite: the effect of hydrated iron(III) oxide" in Journal of the Serbian Chemical Society, 79, no. 7 (2014):815-828, https://doi.org/10.2298/JSC130912017I . .