Development of Novel Perovskite-Like Oxide Photocatalyst LiCuTa3O9 with Dual Functions of Water Reduction and Oxidation under Visible Light Irradiation

doi:10.1002/aenm.201801660

	Development of Novel Perovskite-Like Oxide Photocatalyst LiCuTa3O9 with Dual Functions of Water Reduction and Oxidation under Visible Light Irradiation
	Li, Can 1; Zhang, Fuxiang 1; Dong, Beibei 1,2; Cui, Junyan 1; Liu, Taifeng 3; Gao, Yuying 1,2; Qi, Yu 1; Li, Deng 1,2; Xiong, Fengqiang 1
刊名	ADVANCED ENERGY MATERIALS
	2018-12-01
卷号	8 期号:35 页码:7
关键词	hydrogen oxide photocatalysis solar energy conversion water splitting
ISSN号	1614-6832
DOI	10.1002/aenm.201801660
通讯作者	Zhang, Fuxiang(fxzhang@dicp.ac.cn) ; Li, Can(canli@dicp.ac.cn)
英文摘要	Development of new visible-light-responsive materials is highly desirable in photocatalysis. Here, a novel oxide material LiCuTa3O9 (LCTO) with a characteristic perovskite-like structure, exhibiting a visible light absorption edge of approximate to 500 nm due to the hybridization of Cu 3d and O 2p orbitals, is reported. The structure of the as-obtained LCTO is experimentally characterized and theoretically simulated. UV-vis diffuse reflectance spectroscopy, Mott-Schottky, and density functional theory calculation results show that the LCTO is an n-type semiconductor with bandgap of approximate to 2.48 eV and exhibits suitable conduction band and valence band positions of approximate to-0.45 and 2.03 eV vs reversible hydrogen electrode, respectively. Based on initial optimization of preparative conditions and loading of cocatalysts, the as-modified LCTO sample can drive both water reduction and oxidation half reactions in the presence of corresponding sacrificial reagents under visible light irradiation (lambda >= 420 nm), demonstrating its promising application in solar water splitting. The dual functional features of LCTO render it a promising photocatalyst for one-step overall water splitting to produce hydrogen. In addition, the unobvious structural change of the LCTO photocatalyst during the reaction and repeated runs of the photocatalytic H-2 evolution reaction demonstrate its good photochemical stability.
资助项目	National Natural Science Foundation of China[21633009] ; National Natural Science Foundation of China[21522306] ; National Natural Science Foundation of China[21633010] ; Basic Research Program of China (973 Program)[2014CB239403] ; Dalian Science Foundation for Distinguished Young Scholars[2017RJ02] ; priority support from the Hundred Talents Program of Chinese Academy of Sciences
WOS关键词	RHODIUM HYDROXIDE NANOPARTICLES ; DRIVEN Z-SCHEME ; EVOLUTION ; BIVO4 ; H-2 ; SEMICONDUCTOR ; NIOBATE ; O-2 ; NB ; PHOTOOXIDATION
WOS研究方向	Chemistry ; Energy & Fuels ; Materials Science ; Physics
语种	英语
出版者	WILEY-V C H VERLAG GMBH
WOS记录号	WOS:000453273200011
资助机构	National Natural Science Foundation of China ; National Natural Science Foundation of China ; Basic Research Program of China (973 Program) ; Basic Research Program of China (973 Program) ; Dalian Science Foundation for Distinguished Young Scholars ; Dalian Science Foundation for Distinguished Young Scholars ; priority support from the Hundred Talents Program of Chinese Academy of Sciences ; priority support from the Hundred Talents Program of Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Basic Research Program of China (973 Program) ; Basic Research Program of China (973 Program) ; Dalian Science Foundation for Distinguished Young Scholars ; Dalian Science Foundation for Distinguished Young Scholars ; priority support from the Hundred Talents Program of Chinese Academy of Sciences ; priority support from the Hundred Talents Program of Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Basic Research Program of China (973 Program) ; Basic Research Program of China (973 Program) ; Dalian Science Foundation for Distinguished Young Scholars ; Dalian Science Foundation for Distinguished Young Scholars ; priority support from the Hundred Talents Program of Chinese Academy of Sciences ; priority support from the Hundred Talents Program of Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Basic Research Program of China (973 Program) ; Basic Research Program of China (973 Program) ; Dalian Science Foundation for Distinguished Young Scholars ; Dalian Science Foundation for Distinguished Young Scholars ; priority support from the Hundred Talents Program of Chinese Academy of Sciences ; priority support from the Hundred Talents Program of Chinese Academy of Sciences
内容类型	期刊论文
源URL	[http://cas-ir.dicp.ac.cn/handle/321008/166394]
专题	大连化学物理研究所_中国科学院大连化学物理研究所
通讯作者	Li, Can; Zhang, Fuxiang
作者单位	1.Chinese Acad Sci, Dalian Inst Chem Phys, Collaborat Innovat Ctr Chem Energy Mat iChEM, State Key Lab Catalysis,Dalian Natl Lab Clean Ene, Dalian 116023, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Henan Univ, Natl & Local Joint Engn Res Ctr Appl Technol Hybr, Collaborat Innovat Ctr Nano Funct Mat & Applicat, Kaifeng 475004, Peoples R China
推荐引用方式 GB/T 7714	Li, Can,Zhang, Fuxiang,Dong, Beibei,et al. Development of Novel Perovskite-Like Oxide Photocatalyst LiCuTa3O9 with Dual Functions of Water Reduction and Oxidation under Visible Light Irradiation[J]. ADVANCED ENERGY MATERIALS,2018,8(35):7.
APA	Li, Can.,Zhang, Fuxiang.,Dong, Beibei.,Cui, Junyan.,Liu, Taifeng.,...&Xiong, Fengqiang.(2018).Development of Novel Perovskite-Like Oxide Photocatalyst LiCuTa3O9 with Dual Functions of Water Reduction and Oxidation under Visible Light Irradiation.ADVANCED ENERGY MATERIALS,8(35),7.
MLA	Li, Can,et al."Development of Novel Perovskite-Like Oxide Photocatalyst LiCuTa3O9 with Dual Functions of Water Reduction and Oxidation under Visible Light Irradiation".ADVANCED ENERGY MATERIALS 8.35(2018):7.