硝基苯
化学
光催化
铋
光化学
辐照
可见光谱
转移加氢
选择性
氢
氧化还原
催化作用
无机化学
有机化学
光电子学
钌
核物理学
物理
作者
Yitao Dai,Chao Li,Yanbin Shen,Su‐Li Zhu,Mathias S. Hvid,Lai Chin Wu,Jørgen Skibsted,Yongwang Li,J.W. Niemantsverdriet,Flemming Besenbacher,Nina Lock,Ren Su
摘要
Photocatalytic organic conversions involving a hydrogen transfer (HT) step have attracted much attention, but the efficiency and selectivity under visible light irradiation still needs to be significantly enhanced. Here we have developed a noble metal-free, basic-site engineered bismuth oxybromide [Bi24O31Br10(OH)δ] that can accelerate the photocatalytic HT step in both reduction and oxidation reactions, i.e., nitrobenzene to azo/azoxybenzene, quinones to quinols, thiones to thiols, and alcohols to ketones under visible light irradiation and ambient conditions. Remarkably, quantum efficiencies of 42% and 32% for the nitrobenzene reduction can be reached under 410 and 450 nm irradiation, respectively. The Bi24O31Br10(OH)δ photocatalyst also exhibits excellent performance in up-scaling and stability under visible light and even solar irradiation, revealing economic potential for industrial applications.
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