ICCAS OpenIR
A novel beta-CD-hemin complex photocatalyst for efficient degradation of organic pollutants at neutral pHs under visible irradiation
Huang, YP; Ma, WH; Li, J; Cheng, MM; Zhao, JC; Wang, LJ; Yu, JC
2003-09-04
Source PublicationJOURNAL OF PHYSICAL CHEMISTRY B
ISSN1520-6106
Volume107Issue:35Pages:9409-9414
AbstractA novel photooxidative system for degrading toxic organic Pollutants, including organic dyes and small molecular compounds such as Rhodamine B (RhB) and 2,4-dichlorophenol (DCP), is reported. A metalorganic complex (beta-cyclodextrin-hemin, CDH), synthesized by combining beta-CD with the bioactive small molecule hemin, can efficiently activate hydrogen peroxide to oxidize and mineralize the target compounds in aqueous media at neutral pHs under ambient conditions of temperature and pressure and with visible light irradiation (lambda > 450 nm). The RhB and DCP were mineralized at yields of 72% and 85% at ratios of catalyst to substrate of 1:200 and 1:1000, respectively. Meanwhile, the catalyst exhibited excellent stability. The photoreaction processes were examined by UV/vis spectroscopy, high-performance liquid chromatography, ion chromatography, IR, spin-trapping electron paramagnetic resonance, and total organic carbon measurements. A possible photooxidative mechanism for the degradation of organic pollutants in aqueous CDH/H2O2 solutions under visible light illumination is proposed on the basis of the experimental results.
DOI10.1021/jp034854s
Indexed BySCI
Language英语
WOS IDWOS:000185034700038
PublisherAMER CHEMICAL SOC
Citation statistics
Document Type期刊论文
Identifierhttp://ir.iccas.ac.cn/handle/121111/79760
Collection中国科学院化学研究所
Corresponding AuthorZhao, JC
Affiliation1.Chinese Acad Sci, Inst Chem, Ctr Mol Sci, Lab Photochem, Beijing 100080, Peoples R China
2.Chinese Acad Sci, Inst Chem, Key Lab Mol Nanostruct & Nanotechnol, Beijing 100080, Peoples R China
3.Chinese Univ Hong Kong, Dept Chem, Shatin, Hong Kong, Peoples R China
Recommended Citation
GB/T 7714
Huang, YP,Ma, WH,Li, J,et al. A novel beta-CD-hemin complex photocatalyst for efficient degradation of organic pollutants at neutral pHs under visible irradiation[J]. JOURNAL OF PHYSICAL CHEMISTRY B,2003,107(35):9409-9414.
APA Huang, YP.,Ma, WH.,Li, J.,Cheng, MM.,Zhao, JC.,...&Yu, JC.(2003).A novel beta-CD-hemin complex photocatalyst for efficient degradation of organic pollutants at neutral pHs under visible irradiation.JOURNAL OF PHYSICAL CHEMISTRY B,107(35),9409-9414.
MLA Huang, YP,et al."A novel beta-CD-hemin complex photocatalyst for efficient degradation of organic pollutants at neutral pHs under visible irradiation".JOURNAL OF PHYSICAL CHEMISTRY B 107.35(2003):9409-9414.
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