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Efficient Solar-Driven Hydrogen Transfer by Bismuth-Based Photocatalyst with Engineered Basic Sites

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  • Yitao Dai, Synfuels China Technology Co.Ltd.
  • ,
  • Chao Li, Synfuels China Technology Co.Ltd.
  • ,
  • Yanbin Shen, Suzhou Institute of Nano-Tech and Nano-Bionics
  • ,
  • Shujie Zhu, University of Copenhagen
  • ,
  • Mathias S. Hvid
  • ,
  • Lai Chin Wu
  • Jørgen Skibsted
  • Yongwang Li, Synfuels China Technology Co.Ltd.
  • ,
  • J. W.Hans Niemantsverdriet, Synfuels China Technology Co.Ltd., Syngaschem BV
  • ,
  • Flemming Besenbacher
  • Nina Lock
  • Ren Su

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)] 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) photocatalyst also exhibits excellent performance in up-scaling and stability under visible light and even solar irradiation, revealing economic potential for industrial applications.

Original languageEnglish
JournalJournal of the American Chemical Society
Pages (from-to)16711-16719
Number of pages9
Publication statusPublished - 5 Dec 2018

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