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Achieving photocatalytic water oxidation on LaNbON2 under visible light irradiation
Wan, Lipeng1,2; Xiong, Feng-Qiang1; Zhang, Bingxue; Che, Ruxin2; Li, Yue1,2; Yang, Minghui1,3
KeywordPhotocatalysis Perovskite Oxynitride Water Splitting Anion Vacancy Valence Band
Source PublicationJOURNAL OF ENERGY CHEMISTRY
2018-03-01
ISSN2095-4956
DOI10.1016/j.jechem.2018.01.004
Volume27Issue:2Pages:367-371
Indexed BySCI
SubtypeArticle
WOS HeadingsScience & Technology ; Physical Sciences ; Technology
WOS SubjectChemistry, Applied ; Chemistry, Physical ; Energy & Fuels ; Engineering, Chemical
WOS Research AreaChemistry ; Energy & Fuels ; Engineering
WOS KeywordPHOTOANODES ; PERFORMANCE ; LATIO2N ; DENSITY
AbstractLaNbON2 has narrow bandgap and wide visible-light absorption band, yet no photocatalytic water oxidation on LaNbON2 has been reported. By a post-annealing treatment in Ar, anion vacancies were brought into LaNbON2 as shown by EPR spectroscopy. These could act as donors in the semiconductor. And consequently the oxidative power of holes was enhanced as indicated by the difference between fermi level and valence band maximum (EF-EVBM) evaluated from valence band XPS. The annealed LaNbON2 photocatalyst acquired water oxidation ability for the first time, which was improved by combining CoOx as cocatalyst. Annealed LaNbON2 derived from La3NbO7 had smaller particle size, higher concentration of anion vacancies, bigger EF-EVBM and better performance for photocatalytic oxygen evolution reaction than LaNbON2 derived from LaNbO4. (C) 2018 Science Press and Dalian Institute of Chemical Physics, Chinese Academy of Sciences. Published by Elsevier B.V. and Science Press. All rights reserved.
Language英语
WOS IDWOS:000425896100005
PublisherELSEVIER SCIENCE BV
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Document Type期刊论文
Identifierhttp://cas-ir.dicp.ac.cn/handle/321008/168701
Collection中国科学院大连化学物理研究所
Corresponding AuthorXiong, Feng-Qiang; Yang, Minghui
Affiliation1.Chinese Acad Sci, Dalian Inst Chem Phys, Dalian Natl Lab Clean Energy, Dalian 116023, Liaoning, Peoples R China
2.Dalian Jiaotong Univ, Coll Environm & Chem Engn, Coll Mat Sci & Engn, Dalian 116028, Liaoning, Peoples R China
3.Chinese Acad Sci, Ningbo Inst Mat Technol & Engn, Ningbo 315201, Zhejiang, Peoples R China
Recommended Citation
GB/T 7714
Wan, Lipeng,Xiong, Feng-Qiang,Zhang, Bingxue,et al. Achieving photocatalytic water oxidation on LaNbON2 under visible light irradiation[J]. JOURNAL OF ENERGY CHEMISTRY,2018,27(2):367-371.
APA Wan, Lipeng,Xiong, Feng-Qiang,Zhang, Bingxue,Che, Ruxin,Li, Yue,&Yang, Minghui.(2018).Achieving photocatalytic water oxidation on LaNbON2 under visible light irradiation.JOURNAL OF ENERGY CHEMISTRY,27(2),367-371.
MLA Wan, Lipeng,et al."Achieving photocatalytic water oxidation on LaNbON2 under visible light irradiation".JOURNAL OF ENERGY CHEMISTRY 27.2(2018):367-371.
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