Bi₂Ga₄O₉: An undoped single-phase photocatalyst for overall water splitting under visible light

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• 作者：Jia Yang ; Pengfei Jiang ; Mufei Yue ; Dingfeng Yang ; Rihong Cong ; Wenliang Gao ; Tao Yang ; ^{taoyang@cqu.edu.cn}
• 关键词：Bismuth ; Gallium ; Photocatalysis ; Overall water splitting ; Band structure ; Apparent quantum yield
• 刊名：Journal of Catalysis
• 出版年：2017
• 出版时间：January 2017
• 年：2017
• 卷：345
• 期：Complete
• 页码：236-244
• 全文大小：3925 K
• 卷排序：345

文摘

Bi2Ga4O9 shows an intrinsic dual edge of light absorption at ∼433 and ∼382 nm. The estimated valence and conduction band potentials allow water splitting. Bi2Ga4O9–0.5 wt.% RuOx photocatalyzes overall water splitting under visible light. The optimal gas generation rates are 41.5 (H2) and 19.6 (O2) μmol/h/g. The apparent quantum yield at 420 nm is 0.09%.