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	Remarkable synergistic effect between {001} facets and surface F ions promoting hole migration on anatase TiO2
	Ma, Jinzhu; Zhang, Changbin; Li, Yaobin; He, Guangzhi; Zhang, Bo; Chen, Min; He, Hong
刊名	APPLIED CATALYSIS B-ENVIRONMENTAL
	2017-06-15
卷号	207期号:0页码:397-403
关键词	Photocatalysis Exposed Facet Tio2 Surface Fluorine Nh3 Oxidation
英文摘要	Controllable synthesis and surface modification of TiO2 crystals with specific exposed facets using fluoride as a shape directing agent have drawn a great deal of attention in the photocatalytic field. Both the exposed facets and surface F ions are known to have a great influence on the phOtocatalytic performance of TiO2 crystals, while these two factors are usually considered and discussed separately. Here, we investigated the influence of surface F ions on the carrier migration when the surface F ions are present on anatase TiO2 crystals with predominant {001} or {101} facets by using the H2O photo-oxidation and NH3 photo oxidation as the probe reactions. We observed a remarkable synergistic effect between {001} facets and surface F ions on the photogenerated hole migration. The {001} facets provide hole-trapping sites and the electrostatic effect of surface F anions attract and accelerate the holes migration to {001} facets, which synergistically promote the electron-hole pair separation and thus significantly enhance the photo oxidation activity. However, no synergistic effect was detected between {101} facets and the surface F ions. This finding provides a new insight into the photogenerated charge migration on fluorinated TiO2 with specific exposed facets. (C) 2017 Elsevier B.V. All rights reserved.
内容类型	期刊论文
源URL	[http://ir.rcees.ac.cn/handle/311016/39209]
专题	生态环境研究中心_大气污染控制中心
推荐引用方式 GB/T 7714	Ma, Jinzhu,Zhang, Changbin,Li, Yaobin,et al. Remarkable synergistic effect between {001} facets and surface F ions promoting hole migration on anatase TiO2[J]. APPLIED CATALYSIS B-ENVIRONMENTAL,2017,207(0):397-403.
APA	Ma, Jinzhu.,Zhang, Changbin.,Li, Yaobin.,He, Guangzhi.,Zhang, Bo.,...&He, Hong.(2017).Remarkable synergistic effect between {001} facets and surface F ions promoting hole migration on anatase TiO2.APPLIED CATALYSIS B-ENVIRONMENTAL,207(0),397-403.
MLA	Ma, Jinzhu,et al."Remarkable synergistic effect between {001} facets and surface F ions promoting hole migration on anatase TiO2".APPLIED CATALYSIS B-ENVIRONMENTAL 207.0(2017):397-403.

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