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首页> 外文期刊>ACS Sustainable Chemistry & Engineering >NbSe2 Nanosheet Supported PbBiO2Br as a High Performance Photocatalyst for the Visible Light-driven Asymmetric Alkylation of Aldehyde
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NbSe2 Nanosheet Supported PbBiO2Br as a High Performance Photocatalyst for the Visible Light-driven Asymmetric Alkylation of Aldehyde

机译:NbSe2纳米片负载的PbBiO2Br作为高性能光催化剂,用于可见光驱动的醛的不对称烷基化

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摘要

Visible light photoredox catalysis has been demonstrated to be a promising and green strategy for organic synthesis. In this study, a nanocomposite of PbBiO2Br nanoparticles and NbSe2 nanosheet was prepared as a high performance photocatalyst for the visible light-driven asymmetric alkylation of aldehyde. It was found that the introduction of a small amount of NbSe2 (0.5 wt %) to the PbBiO2Br semiconductor could result in ~50% increase in the yield of the final product. This study shows that NbSe2 nanosheets can be used as an efficient support to suppress the recombination of photoinduced electron-hole pairs and contribute to the enhanced photocatalytic performances of semiconductors in the visible light-driven catalysis.
机译:可见光的光氧化还原催化已被证明是有机合成的一种有前途的绿色策略。在这项研究中,制备了PbBiO2Br纳米颗粒和NbSe2纳米片的纳米复合材料,作为可见光驱动的醛的不对称烷基化的高性能光催化剂。发现向PbBiO2Br半导体中引入少量的NbSe2(0.5 wt%)可能导致最终产品的产率提高约50%。这项研究表明,NbSe2纳米片可以用作抑制光致电子-空穴对重组的有效载体,并有助于在可见光驱动的催化中增强半导体的光催化性能。

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