Efficient solar-driven hydrogen transfer by Bismuth-based photocatalyst with engineered basic sites

Yitao Dai, Chao Li, Yanbin Shen, Shujie Zhu, Mathias S. Hvid, Lai Chin Wu, Jørgen Skibsted, Yongwang Li, J. W.Hans Niemantsverdriet, Flemming Besenbacher, Nina Lock, Ren Su (Corresponding author)

    Research output: Contribution to journalArticleAcademicpeer-review

    21 Citations (Scopus)


    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
    Pages (from-to)16711-16719
    Number of pages9
    JournalJournal of the American Chemical Society
    Issue number48
    Publication statusPublished - 5 Dec 2018

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