Facet-Dependent Interfacial Charge Transfer in Fe(III)-Grafted TiO2 Nanostructures Activated by Visible Light

CORC > 生态环境研究中心 > 中国科学院生态环境研究中心 > 环境化学与生态毒理学国家重点实验室

	Facet-Dependent Interfacial Charge Transfer in Fe(III)-Grafted TiO2 Nanostructures Activated by Visible Light
	Zhang, Hui; Wang, Weimin; Zhao, Huanxin; Zhao, Lixia; Gan, Li-Yong; Guo, Liang-Hong
刊名	ACS CATALYSIS
	2018-10-01
卷号	8 期号:10 页码:9399-9407
关键词	photocatalysis interfacial charge transfer oxygen reduction facet-dependent effect H2O2 generation
ISSN号	2155-5435
文献子类	Article
英文摘要	Interface engineering in heterogeneous catalysis is fascinating because of the modulation of charge-transfer processes and catalytic activity. Herein, by constructing Fe(III)-TiO2 systems with different interfacial contact facets, {101} and {001} facets, we demonstrate the facet-dependent interfacial charge transfer properties of TiO2/Fe(III) system activated by visible light. Although the photo reactivity of the {001} facet is documented to be higher than that of the {101} facet under UV light, phenol photodegradation experiments reveal that under visible light {101} TiO2/Fe(III) exhibits significantly higher photocatalytic activity than {001} TiO2/Fe(III). Photoelectrochemical measurements and computational calculations suggest that the {101} TiO2/Fe(III) interface significantly promotes interfacial electron transfer compared with the {001} TiO2/Fe(III) interface owing to the facet-specific electron-hole transport properties of the {101} and {001} facets in the TiO2 crystals. The reduced Fe(III) nanoclusters on the {101} TiO2 surface facilitate the reduction of adsorbed O-2 molecules to H2O2 via multielectron transfer processes and simultaneously promote hole generation in VB(TiO2) to oxidize organic contaminants. These findings demonstrate the crucial roles of the facet in determining interfacial charge transfer processes and will be applicable for designing high-performance catalysts.
内容类型	期刊论文
源URL	[http://ir.rcees.ac.cn/handle/311016/40941]
专题	生态环境研究中心_环境化学与生态毒理学国家重点实验室
推荐引用方式 GB/T 7714	Zhang, Hui,Wang, Weimin,Zhao, Huanxin,et al. Facet-Dependent Interfacial Charge Transfer in Fe(III)-Grafted TiO2 Nanostructures Activated by Visible Light[J]. ACS CATALYSIS,2018,8(10):9399-9407.
APA	Zhang, Hui,Wang, Weimin,Zhao, Huanxin,Zhao, Lixia,Gan, Li-Yong,&Guo, Liang-Hong.(2018).Facet-Dependent Interfacial Charge Transfer in Fe(III)-Grafted TiO2 Nanostructures Activated by Visible Light.ACS CATALYSIS,8(10),9399-9407.
MLA	Zhang, Hui,et al."Facet-Dependent Interfacial Charge Transfer in Fe(III)-Grafted TiO2 Nanostructures Activated by Visible Light".ACS CATALYSIS 8.10(2018):9399-9407.