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
刊名JOURNAL OF ENERGY CHEMISTRY
2018-03-01
卷号27期号:2页码:367-371
关键词Photocatalysis Perovskite Oxynitride Water Splitting Anion Vacancy Valence Band
ISSN号2095-4956
DOI10.1016/j.jechem.2018.01.004
文献子类Article
英文摘要LaNbON2 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.
WOS关键词PHOTOANODES ; PERFORMANCE ; LATIO2N ; DENSITY
WOS研究方向Chemistry ; Energy & Fuels ; Engineering
语种英语
出版者ELSEVIER SCIENCE BV
WOS记录号WOS:000425896100005
内容类型期刊论文
源URL[http://cas-ir.dicp.ac.cn/handle/321008/168700]  
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Xiong, Feng-Qiang; Yang, Minghui
作者单位1.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
推荐引用方式
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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