CAS OpenIR  > 中科院上海应用物理研究所2004-2010年
Radiation degradation of Congo Red in aqueous solution
Ma, HJ(马红娟); Wang, M(王敏); Yang, RY; Wang, WF(王文锋); Zhao, J; Shen, ZQ; Yao, SD(姚思德); Wang, M (reprint author), Chinese Acad Sci, Shanghai Inst Appl Phys, POB 800-204, Shanghai 201800, Peoples R China
2007
Source PublicationCHEMOSPHERE
ISSN0045-6535
Volume68Issue:6Pages:1098
AbstractRadiation-induced degradation of Congo Red (an azo dye) in aqueous solution was studied both with steady-state radiolysis and time-resolve techniques of pulse radiolysis and laser flash photolysis. Decomposition and mineralization of Congo Red by gamma-rays was investigated with the changes of absorption spectra, degradation efficiency, TOC removal and pH changes of the solutions in different irradiation systems. The main radiolytic products resulting from steady-state radiolysis of Congo Red were examined by HPLC and LC-MS. Complete degradation of Congo Red was observed at different absorbed doses under diverse irradiation condition. The TOC removal of the solutions saturated with O-2 or N2O reached 76% and 86% at the absorbed dose of 11.9 kGy, respectively. Pulse radiolysis and laser flash photolysis experiments were carried out to study the reaction of Congo Red with e(aq)(-) and (OH)-O-center dot. The reaction rate constants were determined. (c) 2007 Elsevier Ltd. All rights reserved.
KeywordGamma-rays Irradiation Degradation Toc Removal Pulse Radiolysis Laser Photolysis
Subject AreaPhysics
Indexed BySCI
Language英语
Funding Project应物所项目组
WOS IDWOS:000247389600013
Citation statistics
Cited Times:46[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.sinap.ac.cn/handle/331007/8173
Collection中科院上海应用物理研究所2004-2010年
Corresponding AuthorWang, M (reprint author), Chinese Acad Sci, Shanghai Inst Appl Phys, POB 800-204, Shanghai 201800, Peoples R China
Recommended Citation
GB/T 7714
Ma, HJ,Wang, M,Yang, RY,et al. Radiation degradation of Congo Red in aqueous solution[J]. CHEMOSPHERE,2007,68(6):1098.
APA Ma, HJ.,Wang, M.,Yang, RY.,Wang, WF.,Zhao, J.,...&Wang, M .(2007).Radiation degradation of Congo Red in aqueous solution.CHEMOSPHERE,68(6),1098.
MLA Ma, HJ,et al."Radiation degradation of Congo Red in aqueous solution".CHEMOSPHERE 68.6(2007):1098.
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