ICCAS OpenIR
Efficient photosensitized degradation of 4-chlorophenol over immobilized aluminum tetrasulfophthalocyanine in the presence of hydrogen peroxide
Hu, MQ; Xu, YM; Zhao, JC
2004-07-20
Source PublicationLANGMUIR
ISSN0743-7463
Volume20Issue:15Pages:6302-6307
AbstractThe photosensitized degradation of 4-chlorophenol (4-CP) under visible light (lambda greater than or equal to 450 nm) irradiation in an aerated aqueous medium at pH 12 was studied using an immobilized photosensitizer, aluminum tetrasulfophthalocyanine, on a commercial resin Amberlite IRA 400. The catalyst exhibited strong adsorption toward 4-CP, but the adsorption led to an exponential decrease in both the initial rate and the apparent first-order rate constant, as measured by 4-CP loss in the bulk solution. Several intermediates were formed from 4-CP oxidation, including fumaric acid, benzoquinone, and hydroquinone, which were adsorbed strongly on the catalyst and lowered the photosensitized reaction. Addition of H2O2 was found to be an efficient way to eliminate the colored intermediates and consequently recover the catalyst activity. The immobilized sensitizer was stable and could be used repeatedly in the presence of H2O2. The optimal loading of the photosensitizer in the catalyst was about 1.0 wt %.
DOI10.1021/la049710z
Indexed BySCI
Language英语
WOS IDWOS:000222669800033
PublisherAMER CHEMICAL SOC
Citation statistics
Cited Times:60[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.iccas.ac.cn/handle/121111/82534
Collection中国科学院化学研究所
Corresponding AuthorXu, YM
Affiliation1.Zhejiang Univ, Dept Chem, Hangzhou 310027, Peoples R China
2.Chinese Acad Sci, Inst Chem, Ctr Mol Sci, Beijing 100080, Peoples R China
Recommended Citation
GB/T 7714
Hu, MQ,Xu, YM,Zhao, JC. Efficient photosensitized degradation of 4-chlorophenol over immobilized aluminum tetrasulfophthalocyanine in the presence of hydrogen peroxide[J]. LANGMUIR,2004,20(15):6302-6307.
APA Hu, MQ,Xu, YM,&Zhao, JC.(2004).Efficient photosensitized degradation of 4-chlorophenol over immobilized aluminum tetrasulfophthalocyanine in the presence of hydrogen peroxide.LANGMUIR,20(15),6302-6307.
MLA Hu, MQ,et al."Efficient photosensitized degradation of 4-chlorophenol over immobilized aluminum tetrasulfophthalocyanine in the presence of hydrogen peroxide".LANGMUIR 20.15(2004):6302-6307.
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