Active Species in Photocatalytic Reactions of Methanol on TiO2(110) Identified by Surface Sum Frequency Generation Vibrational Spectroscopy

doi:10.1021/acs.jpcc.9b03922

	Active Species in Photocatalytic Reactions of Methanol on TiO2(110) Identified by Surface Sum Frequency Generation Vibrational Spectroscopy
	Peng XX; Zhang RD; Feng RR(冯冉冉); Liu AA; Zhou CY; Guo Q; Yang XM; Jiang Y; Ren ZF
刊名	JOURNAL OF PHYSICAL CHEMISTRY C
	2019-06-06
卷号	123 期号:22 页码:13789-13794
ISSN号	1932-7447
DOI	10.1021/acs.jpcc.9b03922
通讯作者	Ren, Zefeng(zfren@dicp.ac.cn)
英文摘要	The photocatalytic reactivity of one monolayer of methanol on TiO2(110) was measured with the surface sum frequency generation vibrational spectroscopy in the C-H stretching range, which shows high photon energy dependence. The photocatalytic reactivity was systematically investigated for different active species on TiO2(110), dissociative adsorbed methanol at five-coordinated Ti sites (Ti-5c), methoxy without adsorbed methanol at Ti-5c sites, and methoxy O-b sites. The results show that the methoxy at Ti-5c sites has much higher photocatalytic reactivity than that of dissociative adsorbed methanol at Ti-5c sites, and the methoxy at O-b sites might be inactive. This work demonstrates that methoxy at Ti-5c sites is the most active species on TiO2(110) and suggests that effectively removing surface OH could enhance the photodegradation of surface organics.
分类号	二类/Q1
资助项目	Ministry of Science and Technology of China[2018YFA0208700] ; Ministry of Science and Technology of China[2016YFA0200602] ; Chinese Academy of Sciences[XDB17000000] ; National Natural Science Foundation of China[91645125] ; National Natural Science Foundation of China[21688102] ; Youth Innovation Promotion Association of CAS[2017224]
WOS关键词	METHYL FORMATE ; DEFECTIVE TIO2(110) ; HYDROGEN-PRODUCTION ; ALIPHATIC-ALCOHOLS ; RUTILE TIO2(110) ; TIO2 110 ; WATER ; DISSOCIATION ; ADSORPTION ; FORMALDEHYDE
WOS研究方向	Chemistry ; Science & Technology - Other Topics ; Materials Science
语种	英语
WOS记录号	WOS:000470938400049
资助机构	Ministry of Science and Technology of China ; Chinese Academy of Sciences ; National Natural Science Foundation of China ; Youth Innovation Promotion Association of CAS
其他责任者	Ren, Zefeng
内容类型	期刊论文
源URL	[http://dspace.imech.ac.cn/handle/311007/79349]
专题	力学研究所_国家微重力实验室
推荐引用方式 GB/T 7714	Peng XX,Zhang RD,Feng RR,et al. Active Species in Photocatalytic Reactions of Methanol on TiO2(110) Identified by Surface Sum Frequency Generation Vibrational Spectroscopy[J]. JOURNAL OF PHYSICAL CHEMISTRY C,2019,123(22):13789-13794.
APA	Peng XX.,Zhang RD.,冯冉冉.,Liu AA.,Zhou CY.,...&Ren ZF.(2019).Active Species in Photocatalytic Reactions of Methanol on TiO2(110) Identified by Surface Sum Frequency Generation Vibrational Spectroscopy.JOURNAL OF PHYSICAL CHEMISTRY C,123(22),13789-13794.
MLA	Peng XX,et al."Active Species in Photocatalytic Reactions of Methanol on TiO2(110) Identified by Surface Sum Frequency Generation Vibrational Spectroscopy".JOURNAL OF PHYSICAL CHEMISTRY C 123.22(2019):13789-13794.