ICCAS OpenIR
Photocatalytic degradation of dye sulforhodamine B: a comparative study of photocatalysis with photosensitization
Liu, GM; Zhao, JC
2000-06-01
Source PublicationNEW JOURNAL OF CHEMISTRY
ISSN1144-0546
Volume24Issue:6Pages:411-417
AbstractThe 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.
Indexed BySCI
Language英语
WOS IDWOS:000087858400010
PublisherGAUTHIER-VILLARS/EDITIONS ELSEVIER
Citation statistics
Cited Times:75[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.iccas.ac.cn/handle/121111/76226
Collection中国科学院化学研究所
Corresponding AuthorZhao, JC
AffiliationChinese Acad Sci, Inst Chem, Ctr Mol Sci, Lab Photochem, Beijing 100080, Peoples R China
Recommended Citation
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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