ICCAS OpenIR
Effect of chemical treatment on TiO2 particles by IMPS
Yin, F; Lin, Y; Lin, RF; Li, XP; Xiao, XR
2002-10-01
Source PublicationCHINESE JOURNAL OF CHEMISTRY
ISSN1001-604X
Volume20Issue:10Pages:978-982
AbstractThe photodegradation reaction rate of CHCl3 in TiO2 particulate suspension was improved significanty by HCl-treatment. The effect of HCl-treatment on the photocatalytic activity of TiO2 was studied in a PEC cell by using Intensity-Modulated Photocurrent Spectroscopy (IMPS). The magnitude of photocurrent response and the characteristic frequencies of the upper and lower semicircles in the complex plane of EVES response were analyzed, and the cathodic and anodic reaction processes of photogenerated holes and electrons were discussed. The increases in the cathodic and anodic photocurrent response and in the time constants of both cathodic and anodic reaction processes indicate that HCl-treatment leads to the improvement of the photocatalytic activity of TiO2 and a change of the photocatalytic kinetic mechanism.
KeywordPhotodegradation Tio2 Particulate Suspension Photocatalytic Activity Hcl-treatment Imps
Indexed BySCI
Language英语
WOS IDWOS:000178644700010
PublisherSCIENCE CHINA PRESS
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Document Type期刊论文
Identifierhttp://ir.iccas.ac.cn/handle/121111/78758
Collection中国科学院化学研究所
Corresponding AuthorYin, F
AffiliationChinese Acad Sci, Inst Chem, Ctr Mol Sci, Beijing 100080, Peoples R China
Recommended Citation
GB/T 7714
Yin, F,Lin, Y,Lin, RF,et al. Effect of chemical treatment on TiO2 particles by IMPS[J]. CHINESE JOURNAL OF CHEMISTRY,2002,20(10):978-982.
APA Yin, F,Lin, Y,Lin, RF,Li, XP,&Xiao, XR.(2002).Effect of chemical treatment on TiO2 particles by IMPS.CHINESE JOURNAL OF CHEMISTRY,20(10),978-982.
MLA Yin, F,et al."Effect of chemical treatment on TiO2 particles by IMPS".CHINESE JOURNAL OF CHEMISTRY 20.10(2002):978-982.
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