界面增强的Bi3O4Br/Bi2O3异质结高效选择性光氧化

IF 42.9 Q1 ELECTROCHEMISTRY eScience Pub Date : 2023-04-01 DOI:10.1016/j.esci.2023.100095

Xianshun Sun , Lei Li , Sen Jin , Wei Shao , Hui Wang , Xiaodong Zhang , Yi Xie

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引用次数: 12

摘要

胺的选择性光氧化制备生物重要亚胺在工业应用中有很大的需求。该方法的转化效率和选择性强烈依赖于光催化分子氧（O2）向活性氧物种的活化。在这里，我们提出构建丰富的界面，通过促进光载流子的转移来促进光催化O2的活化。以Bi3O4Br/Bi2O3异质结为例，丰富的界面有利于电子转移到吸附的O2上产生超氧化物（O2·−），从而实现了对苄胺和苄胺衍生物≥98%的转化效率和选择性。本研究为设计用于选择性氧化反应的先进光催化剂提供了一种有效的方法。

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Interface boosted highly efficient selective photooxidation in Bi3O4Br/Bi2O3 heterojunctions

Selective photooxidation of amines to biologically important imines is in great demand for industrial applications. The conversion efficiency and selectivity of the process are strongly dependent on the activation of photocatalytic molecular oxygen (O₂) into reactive oxygen species. Here, we propose the construction of rich interfaces to boost photocatalytic O₂ activation by facilitating the transfer of photocarriers. Taking Bi₃O₄Br/Bi₂O₃ heterojunctions as an example, rich interfaces facilitate electron transfer to adsorbed O₂ for superoxide ( ${O_{2}}^{\cdot -}$ ) generation, thus achieving ≥ 98% conversion efficiency and selectivity for benzylamine and benzylamine derivatives. This study offers a valid method to design advanced photocatalysts for selective oxidation reactions.

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来源期刊

eScience

CiteScore

33.70

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0.00%

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