ICCAS OpenIR
Mechanism of photodecomposition of H2O2 on TiO2 surfaces under visible light irradiation
Li, XZ; Chen, CC; Zhao, JC
2001-06-26
Source PublicationLANGMUIR
ISSN0743-7463
Volume17Issue:13Pages:4118-4122
AbstractPhotodecomposition of hydrogen peroxide on TiO2 surfaces under visible irradiation (lambda > 420 nm) was investigated, and an interesting result was found that small organic compounds such as salicylic acid were degraded in the presence of TiO2 and H2O2 under visible irradiation, although either TiO2 or H2O2 alone cannot absorb visible light to decompose H2O2 or small organic compounds. Furthermore, the effects of H2O2 concentration, pH, and the wavelength of irradiation light on the degradation of H2O2 were studied. The photodegradation of H2O2 occurred via a zero-order process, and (OH)-O-. radicals were detected by electron paramagnetic resonance experiments in visible-light-irradiated aqueous TiO2 suspensions. A reaction mechanism for the decomposition of H2O2 on the TiO2 surfaces is proposed involving a photoinduced electron transfer of the surface complexes of =Ti-IV-OOH.
Indexed BySCI
Language英语
WOS IDWOS:000169460000050
PublisherAMER CHEMICAL SOC
Citation statistics
Cited Times:194[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.iccas.ac.cn/handle/121111/78002
Collection中国科学院化学研究所
Corresponding AuthorZhao, JC
AffiliationAcad Sinica, Lab Photochem, Ctr Mol Sci, Inst Chem, Beijing 100101, Peoples R China
Recommended Citation
GB/T 7714
Li, XZ,Chen, CC,Zhao, JC. Mechanism of photodecomposition of H2O2 on TiO2 surfaces under visible light irradiation[J]. LANGMUIR,2001,17(13):4118-4122.
APA Li, XZ,Chen, CC,&Zhao, JC.(2001).Mechanism of photodecomposition of H2O2 on TiO2 surfaces under visible light irradiation.LANGMUIR,17(13),4118-4122.
MLA Li, XZ,et al."Mechanism of photodecomposition of H2O2 on TiO2 surfaces under visible light irradiation".LANGMUIR 17.13(2001):4118-4122.
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