Single-Crystalline LaTiO<sub>2</sub>N Nanosheets with Regulated Defects for Photocatalytic Overall Water Splitting under Visible Light up to 600 nm

doi:10.1021/acscatal.3c04743

IMR OpenIR

	Single-Crystalline LaTiO₂N Nanosheets with Regulated Defects for Photocatalytic Overall Water Splitting under Visible Light up to 600 nm
	Yu, Jinxing 1; Shi, Li 2,3; Li, Ronghua 4; Huang, Jie 5; Wang, Ran 1; Li, Zhuo 6; Shen, Cai 7; Liu, Gang 5; Li, Yanbo 4; Xu, Xiaoxiang 1
通讯作者	Xu, Xiaoxiang(xxxu@tongji.edu.cn)
	2023-12-27
发表期刊	ACS CATALYSIS
ISSN	2155-5435
卷号	14 期号:2 页码:608-618
摘要	Overall water splitting (OWS), liberating H-2 and O-2 in a 2:1 ratio, based on powdery photocatalysts, represents a simple and cost-effective means for solar hydrogen production. For an efficient solar energy harvest, the use of OWS reactions should be operated using narrow-band gap semiconductors, which remains a great challenge. In this work, photocatalytic OWS reactions, operable up to 600 nm, have been achieved over a narrow-band gap semiconductor LaTiO2N with single-crystalline nanosheet morphology. These nanosheets, prepared via a topotactic route, are of a low concentration of Ti3+ defects whose locations are limited to the top surface of similar to 1 nm thickness. Such a regulated Ti3+ distribution is essential for OWS reactions as it enables the accumulation of both photogenerated electrons and holes at the surface region simultaneously. Compared with conventional inactive LaTiO2N, LaTiO2N single-crystalline nanosheets can stably photocatalyze OWS reactions under visible light and simulated AM1.5G after being deposited with the RhCrOy cocatalyst and coated with a Ti oxyhydroxide layer. These findings provide a rational guideline to open up the OWS activity of narrow-band gap semiconductors by proper defect regulation.
关键词	defect photocatalyst overall water splitting LaTiO2N nanosheet single-crystal
资助者	National Natural Science Foundation of China ; National Natural Science Foundation of China ; Fundamental Research Funds for the Central Universities
DOI	10.1021/acscatal.3c04743
收录类别	SCI
语种	英语
资助项目	National Natural Science Foundation of China[51972233] ; National Natural Science Foundation of China[52172225] ; National Natural Science Foundation of China[52332009] ; National Natural Science Foundation of China ; Fundamental Research Funds for the Central Universities
WOS研究方向	Chemistry
WOS类目	Chemistry, Physical
WOS记录号	WOS:001146487200001
出版者	AMER CHEMICAL SOC
引用统计	被引频次：14[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/183855
专题	中国科学院金属研究所
通讯作者	Xu, Xiaoxiang
作者单位	1.Tongji Univ, Sch Chem Sci & Engn, Shanghai Key Lab Chem Assessment & Sustainabil, Shanghai 200092, Peoples R China 2.Nanjing Univ Posts & Telecommun, Sch Mat Sci & Engn, Jiangsu Key Lab Organ Elect & Informat, Displays, Nanjing 210023, Peoples R China 3.Nanjing Univ Posts & Telecommun, Inst Adv Mat, Sch Mat Sci & Engn, Nanjing 210023, Peoples R China 4.Univ Elect Sci & Technol China, Inst Fundamental & Frontier Sci, Chengdu 610054, Peoples R China 5.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China 6.Tongji Univ, Coll Environm Sci & Engn, Shanghai 200092, Peoples R China 7.Chinese Acad Sci, Ningbo Inst Mat Technol & Engn, Ningbo 315201, Zhejiang, Peoples R China
推荐引用方式 GB/T 7714	Yu, Jinxing,Shi, Li,Li, Ronghua,et al. Single-Crystalline LaTiO₂N Nanosheets with Regulated Defects for Photocatalytic Overall Water Splitting under Visible Light up to 600 nm[J]. ACS CATALYSIS,2023,14(2):608-618.
APA	Yu, Jinxing.,Shi, Li.,Li, Ronghua.,Huang, Jie.,Wang, Ran.,...&Xu, Xiaoxiang.(2023).Single-Crystalline LaTiO₂N Nanosheets with Regulated Defects for Photocatalytic Overall Water Splitting under Visible Light up to 600 nm.ACS CATALYSIS,14(2),608-618.
MLA	Yu, Jinxing,et al."Single-Crystalline LaTiO₂N Nanosheets with Regulated Defects for Photocatalytic Overall Water Splitting under Visible Light up to 600 nm".ACS CATALYSIS 14.2(2023):608-618.