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	Photocatalytic degradation of dye sulforhodamine B: a comparative study of photocatalysis with photosensitization
	Liu, GM; Zhao, JC
刊名	NEW JOURNAL OF CHEMISTRY
	2000-06-01
卷号	24期号:6页码:411-417
ISSN号	1144-0546
英文摘要	The direct photocatalytic degradation of dye pollutant sulforhodamine B (SRB) in aqueous TiO2 dispersions has been examined and compared to the photosensitization process. The mineralization extent of SRB degradation, the formation of intermediates and final products were monitored to assess the degradation pathways caused by direct photocatalysis. In the initial stage of the direct photocatalysis, SRB is mainly oxidized by a positive hole upon band-gap excitation of TiO2 by UV light (330 nm < lambda < 380 nm) and subsequently undergoes the similar degradation pathways as occur in the photosensitization under visible irradiation (lambda > 420 nm). Diethylamine, N,N-diethylacetamide, N-ethylformamide, N,N-diethylformamide, formic acid and acetic acid were identified as intermediate species; SO42-, NH4+, CO2 and H2O are final mineralized products produced in the direct photocatalytic process.
语种	英语
出版者	GAUTHIER-VILLARS/EDITIONS ELSEVIER
WOS记录号	WOS:000087858400010
内容类型	期刊论文
源URL	[http://ir.iccas.ac.cn/handle/121111/76225]
专题	中国科学院化学研究所
通讯作者	Zhao, JC
作者单位	Chinese Acad Sci, Inst Chem, Ctr Mol Sci, Lab Photochem, Beijing 100080, Peoples R China
推荐引用方式 GB/T 7714	Liu, GM,Zhao, JC. Photocatalytic degradation of dye sulforhodamine B: a comparative study of photocatalysis with photosensitization[J]. NEW JOURNAL OF CHEMISTRY,2000,24(6):411-417.
APA	Liu, GM,&Zhao, JC.(2000).Photocatalytic degradation of dye sulforhodamine B: a comparative study of photocatalysis with photosensitization.NEW JOURNAL OF CHEMISTRY,24(6),411-417.
MLA	Liu, GM,et al."Photocatalytic degradation of dye sulforhodamine B: a comparative study of photocatalysis with photosensitization".NEW JOURNAL OF CHEMISTRY 24.6(2000):411-417.

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