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Title

Removal of Arsenic ions from aqueous media by selective silica coated magnetic nanoparticles SMNPs : Isotherm and kinetic studies

Year: 1392
COI: NCNC01_265
Language: EnglishView: 1,009
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Authors

Marzieh Sadeghi - Analytical chemistry lab., Chemistry Department., Faculty of Science, Razi University, Kermanshah , Iran
Mohsen Irandoust - Analytical chemistry lab., Chemistry Department., Faculty of Science, Razi University, Kermanshah , Iran
Fatemeh Khorshidi
Tahereh Shojaeimehr - Analytical chemistry lab., Chemistry Department., Faculty of Science, Razi University, Kermanshah , Iran.

Abstract:

Arsenic is a ever-present element in exists naturally in both organic and inorganic forms. The aim of this study is the removal of inorganic arsenic fromaqueous solution using selective (SMNPs) as a sorbent.The synthesis was facilitated by the high degree of iron oxide and silica group. The batchexperiments were performed to investigate. The possibility of arsenic ions removal from aqueous solution using selective (SMNPs) was investigated inthis work. FESEM, XRD, BET, Zeta Potential sizer (ξ) analyses are used to determine the sorbent characterization. The influences of some effectiveparameters on Arsenic ions adsorption process such as initial pH (1-10), initial concentration (0.05-10 mg/L), and the contact time (0-120 min) werestudied. Also, the equilibrium behavior of SMNPs in arsenic ions removal was investigated in the temperature range of (20-40 ºC). The results showedthat the equilibrium data were fitted well with Langmuir than Freundlich isotherm model. The maximum monolayer adsorption capacity estimatedby Langmuir isotherm was obtained from (24.010 mg/g). The required contact time to achieve the equilibrium condition was 120 min. Also, theregression coefficients of the kinetic models and more conformity of the (qexp) to the calculated (qcal) were confirmed that the experimental data follow the pseudo-second-order kinetic model.

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This Paper COI Code is NCNC01_265. Also You can use the following address to link to this article. This link is permanent and is used as an article registration confirmation in the Civilica reference:

https://civilica.com/doc/211962/

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Sadeghi, Marzieh and Irandoust, Mohsen and Khorshidi, Fatemeh and Shojaeimehr, Tahereh,1392,Removal of Arsenic ions from aqueous media by selective silica coated magnetic nanoparticles SMNPs : Isotherm and kinetic studies,The first national conference on new technologies in Chemistry & Chemical Engineering,Tehran,https://civilica.com/doc/211962

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  • Budinova, T, Petrov, N, Razvigorova, M, Parra, J, Galiatsatou, P, ...
  • Mandal, B.K, Suzuki, K.T, 2002, Talanta, 58, pp. 201- 235. ...
  • Lorenzen, L, Van Deventer, J. S. J, Landi. Miner, W. ...
  • Mohan, D, Pittman, C. U, Review, 2007, J. Hazard. Mater, ...
  • Meharg, A, 2005, Earth. Venomous Earth: How Arsenic Caused The ...
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Type of center: دانشگاه دولتی
Paper count: 10,856
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