Bismuth‐Based Oxide Photocatalysts for Selective Oxidation Transformations of Organic Compounds

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Abstract
Selective oxidation of organic compounds is incredibly important in the production of a broad range of important chemicals. As such, these reactions attract a great deal of research attention, particularly where conventional synthesis uses harsh and corrosive reaction conditions. To decrease energy consumption, improve yields and mitigate environmental impacts, heterogeneous photocatalysis has emerged as a green and facile method, where its attractiveness is due to promises of providing low toxicity and low‐cost routes, driven by renewable energy. Among various semiconductor photocatalysts, bismuth‐based oxides are particularly promising candidates due to their high chemical and thermal stability, environmental friendliness, and good visible light responses. This paper provides a comprehensive overview of bismuth‐based oxide photocatalysts as employed in selective organic synthesis, including reaction mechanisms, with a particular focus on the reactive oxygen species involved. In addition, detailed information on the bismuth‐based oxide materials used as photocatalysts is covered. This includes crystal and electronic structures, strategies for improving photocatalytic performance, and a comparison of photocatalytic performances for key organic reactions. Furthermore, prospects and challenges of bismuth‐based oxide photocatalysts in selective organic synthesis are discussed, to aid future developments of efficient photocatalytic materials.

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