ICCAS OpenIR
Efficient photoinduced conversion of an azo dye on hexachloroplatinate(IV)-modified TiO2 surfaces under visible light irradiation - A photosensitization pathway
Zhao, W; Chen, CC; Ma, WH; Zhao, JC; Wang, DX; Hidaka, H; Serpone, N
2003-07-21
Source PublicationCHEMISTRY-A EUROPEAN JOURNAL
ISSN0947-6539
Volume9Issue:14Pages:3292-3299
AbstractThe titanium dioxide photocatalyst is employed to examine the influence of chemisorbed hexachloroplatinate(iv) anions (PtCl62-) on the surface of P-25 TiO2 particles on the photoinduced conversion of the azo dye Ethyl Orange (EO) in visible light-illuminated Pt-IV/TiO2 dispersions. Spin-trap electron spin resonance (ESR) spectral results, measurement of quantities of organoperoxides formed, total organic carbon (TOC) and chemical oxygen demand (CODC) assays, together with XPS evidence show that the self-sensitized transformation dynamics of the EO dye mediated by Pt-IV/TiO2 are much faster than those occurring on naked TiO2 under otherwise identical conditions of visible light irradiation. X-ray photoelectron spectral data also show that under the experimental conditions used, no Pt-0 formed on the titania particles during visible light irradiation. We propose a reaction mechanism in which the more rapid conversion of EO in the presence Of PtCl62- is caused principally by photoexcitation of the dye and not by localized excitation of the tetrachloroplatinate(iv)/TiO2 particles.
KeywordDyes Photochemistry Photosensitization Platinum Titanium
DOI10.1002/chem.200204559
Indexed BySCI
Language英语
WOS IDWOS:000184479300013
PublisherWILEY-V C H VERLAG GMBH
Citation statistics
Document Type期刊论文
Identifierhttp://ir.iccas.ac.cn/handle/121111/79762
Collection中国科学院化学研究所
Corresponding AuthorZhao, JC
Affiliation1.Chinese Acad Sci, Inst Chem, Ctr Mol Sci, Beijing 100080, Peoples R China
2.Meisei Univ, Frontier Res Ctr Global Environm Protect, Hino, Tokyo, Japan
3.Concordia Univ, Dept Chem & Biochem, Montreal, PQ H3G 1M8, Canada
Recommended Citation
GB/T 7714
Zhao, W,Chen, CC,Ma, WH,et al. Efficient photoinduced conversion of an azo dye on hexachloroplatinate(IV)-modified TiO2 surfaces under visible light irradiation - A photosensitization pathway[J]. CHEMISTRY-A EUROPEAN JOURNAL,2003,9(14):3292-3299.
APA Zhao, W.,Chen, CC.,Ma, WH.,Zhao, JC.,Wang, DX.,...&Serpone, N.(2003).Efficient photoinduced conversion of an azo dye on hexachloroplatinate(IV)-modified TiO2 surfaces under visible light irradiation - A photosensitization pathway.CHEMISTRY-A EUROPEAN JOURNAL,9(14),3292-3299.
MLA Zhao, W,et al."Efficient photoinduced conversion of an azo dye on hexachloroplatinate(IV)-modified TiO2 surfaces under visible light irradiation - A photosensitization pathway".CHEMISTRY-A EUROPEAN JOURNAL 9.14(2003):3292-3299.
Files in This Item:
There are no files associated with this item.
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Zhao, W]'s Articles
[Chen, CC]'s Articles
[Ma, WH]'s Articles
Baidu academic
Similar articles in Baidu academic
[Zhao, W]'s Articles
[Chen, CC]'s Articles
[Ma, WH]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Zhao, W]'s Articles
[Chen, CC]'s Articles
[Ma, WH]'s Articles
Terms of Use
No data!
Social Bookmark/Share
All comments (0)
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.