Simultaneous Adsorption and Degradation of Cr(VI) and Cd(II) Ions from Aqueous Solution by Silica-Coated Fe0 Nanoparticles
Joint Authors
Ma, Hongpu
Li, Tielong
Ren, Bozhi
Li, Yongchao
Source
Journal of Analytical Methods in Chemistry
Issue
Vol. 2013, Issue 2013 (31 Dec. 2013), pp.1-8, 8 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2013-12-15
Country of Publication
Egypt
No. of Pages
8
Main Subjects
Abstract EN
Core-shell silica-coated Fe0 nanoparticles (Fe@SiO2) were prepared in one-step synthesis by aqueous reduction combined with modified Stöber method.
The as-prepared Fe@SiO2 were then used for simultaneous removal of Cr(VI) and Cd(II) from aqueous solution.
Batch tests indicated that Fe@SiO2 exhibited high removal capacity toward Cr(VI) and Cd(II).
Cr(VI) was removed by Fe@SiO2 through reduction rather than adsorption, while Cd(II) removal was mainly through adsorption.
The removal rate increased with increasing initial Fe NPs dose and decreased with increasing initial Cr(VI) and Cd(II) concentrations.
Cd(II) adsorption was also strengthened by Cr(VI) reduction with the release of OH−.
The removals of Cr(VI) and Cd(II) were weakened in the presence of cations or humic acid, as a result of aggregation and less active site of Fe@SiO2.
Overall, the simply prepared Fe@SiO2 were potential material for the heavy metals removed from water.
American Psychological Association (APA)
Li, Yongchao& Ma, Hongpu& Ren, Bozhi& Li, Tielong. 2013. Simultaneous Adsorption and Degradation of Cr(VI) and Cd(II) Ions from Aqueous Solution by Silica-Coated Fe0 Nanoparticles. Journal of Analytical Methods in Chemistry،Vol. 2013, no. 2013, pp.1-8.
https://search.emarefa.net/detail/BIM-488138
Modern Language Association (MLA)
Li, Yongchao…[et al.]. Simultaneous Adsorption and Degradation of Cr(VI) and Cd(II) Ions from Aqueous Solution by Silica-Coated Fe0 Nanoparticles. Journal of Analytical Methods in Chemistry No. 2013 (2013), pp.1-8.
https://search.emarefa.net/detail/BIM-488138
American Medical Association (AMA)
Li, Yongchao& Ma, Hongpu& Ren, Bozhi& Li, Tielong. Simultaneous Adsorption and Degradation of Cr(VI) and Cd(II) Ions from Aqueous Solution by Silica-Coated Fe0 Nanoparticles. Journal of Analytical Methods in Chemistry. 2013. Vol. 2013, no. 2013, pp.1-8.
https://search.emarefa.net/detail/BIM-488138
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-488138