期刊
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
卷 112, 期 45, 页码 13774-13778出版社
NATL ACAD SCIENCES
DOI: 10.1073/pnas.1509674112
关键词
photocatalysis; water splitting; band edge engineering; bismuth vanadate; dual doping
资金
- Samsung Foundation of Culture
- Brain Korea Plus Program of the Ministry of Education, Korean Centre for Artificial Photosynthesis [2009-0093880]
- Ministry of Trade, Industry and Energy of Republic of Korea [10050509]
- Ulsan National Institute of Science and Technology
- US Army Research Laboratory
- US Army Research Office through Institute for Soldier Nanotechnologies [W911NF-13-D-0001]
Through phase transition-induced band edge engineering by dual doping with In and Mo, a new greenish BiVO4 (Bi1-XInXV1-XMoXO4) is developed that has a larger band gap energy than the usual yellow scheelite monoclinic BiVO4 as well as a higher (more negative) conduction band than H+/H-2 potential [0 V-RHE (reversible hydrogen electrode) at pH 7]. Hence, it can extract H-2 from pure water by visible light-driven overall water splitting without using any sacrificial reagents. The density functional theory calculation indicates that In3+/Mo6+ dual doping triggers partial phase transformation from pure monoclinic BiVO4 to a mixture of monoclinic BiVO4 and tetragonal BiVO4, which sequentially leads to unit cell volume growth, compressive lattice strain increase, conduction band edge uplift, and band gap widening.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据