Oxidation Degradation of Rhodamine B in Aqueous by UVS2O8 2− Treatment System
Joint Authors
Yao, Yanlai
Zhu, Fengxiang
Wang, Weiping
Chen, Xiaoyang
Xue, Zhiyong
Hong, Chunlai
Source
International Journal of Photoenergy
Issue
Vol. 2012, Issue 2012 (31 Dec. 2012), pp.1-5, 5 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2012-10-03
Country of Publication
Egypt
No. of Pages
5
Main Subjects
Abstract EN
The UV photolysis of persulfate (S2O8 2−) is a novel advanced oxidation technologies (AOTs), which leads to the formation of strong oxidizing radicals, sulfate radicals (SO4 •−).
The effect of oxidant S2O8 2− concentration, initial dye concentration, initial pH of solution, and various inorganic anions (Cl−, H2PO4 −, and HCO3 −) were investigated using Rhodamine B (RhB), a kind of xanthene dye, as a model pollutant.
With the increase of oxidant S2O8 2−, more SO4 •− produced to attack RhB molecules and result in the increase of RhB degradation.
While the improvement was not sustained above a critical value, beyond which degradation rate does not increase.
Initial pH of solution had great effect on the RhB degradation rate during UV/S2O8 2− system.
SO4 •− is rather stable in acidic solutions, while increasing system pH results in the transformation of SO4 •− to •OH.
The effects of three inorganic anions (Cl−, H2PO4 −, and HCO3 −) all had some negative effect on the degradation of RhB.
Based on the RhB solution changes of the UV-vis absorption intensity during the UV/S2O8 2− treatment, decolorization of RhB accompanied the destruction of aromatic ring structures of RhB molecules.
American Psychological Association (APA)
Chen, Xiaoyang& Xue, Zhiyong& Yao, Yanlai& Wang, Weiping& Zhu, Fengxiang& Hong, Chunlai. 2012. Oxidation Degradation of Rhodamine B in Aqueous by UVS2O8 2− Treatment System. International Journal of Photoenergy،Vol. 2012, no. 2012, pp.1-5.
https://search.emarefa.net/detail/BIM-496179
Modern Language Association (MLA)
Chen, Xiaoyang…[et al.]. Oxidation Degradation of Rhodamine B in Aqueous by UVS2O8 2− Treatment System. International Journal of Photoenergy No. 2012 (2012), pp.1-5.
https://search.emarefa.net/detail/BIM-496179
American Medical Association (AMA)
Chen, Xiaoyang& Xue, Zhiyong& Yao, Yanlai& Wang, Weiping& Zhu, Fengxiang& Hong, Chunlai. Oxidation Degradation of Rhodamine B in Aqueous by UVS2O8 2− Treatment System. International Journal of Photoenergy. 2012. Vol. 2012, no. 2012, pp.1-5.
https://search.emarefa.net/detail/BIM-496179
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-496179