Cr(VI) Removal from Aqueous by Adsorption on Amine-Functionalized Mesoporous Silica Prepared from Silica Fume
Joint Authors
Ma, Wenhui
Li, Xitong
Han, Caiyun
Zhu, Wenjie
Luo, Yongming
Zhou, Yang
Yu, Jie
Wei, Kuixian
Source
Issue
Vol. 2014, Issue 2014 (31 Dec. 2014), pp.1-10, 10 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2014-08-28
Country of Publication
Egypt
No. of Pages
10
Main Subjects
Abstract EN
Amino-functionalized mesoporous silica MCM-41 materials have been prepared to develop efficient adsorbents of Cr(VI) in wastewater, using silica fume as silica source.
Functionalization with amino groups has been carried out by using grafting method.
The materials have been characterized by means of X-ray diffraction (XRD), nitrogen (N2) adsorption-desorption, Fourier transform infrared (FTIR) spectroscopy, scanning electron microscopy (SEM), transmission electron microscopy (TEM), and X-ray photoelectron spectroscopy (XPS).
Adsorption potential of the material for Cr(VI) removal from aqueous solution was investigated by varying experimental conditions such as pH, initial metal concentration, and contact time.
The equilibrium data were analyzed using the Langmuir and Freundlich isotherm by linear regression analysis, and the results show that the adsorption equilibrium data obeyed the Langmuir model.
In addition, the kinetics analysis revealed that the overall adsorption process was successfully fitted with the pseudo-second-order kinetic model.
American Psychological Association (APA)
Li, Xitong& Han, Caiyun& Zhu, Wenjie& Ma, Wenhui& Luo, Yongming& Zhou, Yang…[et al.]. 2014. Cr(VI) Removal from Aqueous by Adsorption on Amine-Functionalized Mesoporous Silica Prepared from Silica Fume. Journal of Chemistry،Vol. 2014, no. 2014, pp.1-10.
https://search.emarefa.net/detail/BIM-1040073
Modern Language Association (MLA)
Li, Xitong…[et al.]. Cr(VI) Removal from Aqueous by Adsorption on Amine-Functionalized Mesoporous Silica Prepared from Silica Fume. Journal of Chemistry No. 2014 (2014), pp.1-10.
https://search.emarefa.net/detail/BIM-1040073
American Medical Association (AMA)
Li, Xitong& Han, Caiyun& Zhu, Wenjie& Ma, Wenhui& Luo, Yongming& Zhou, Yang…[et al.]. Cr(VI) Removal from Aqueous by Adsorption on Amine-Functionalized Mesoporous Silica Prepared from Silica Fume. Journal of Chemistry. 2014. Vol. 2014, no. 2014, pp.1-10.
https://search.emarefa.net/detail/BIM-1040073
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1040073