NbSe2 Nanosheet Supported PbBiO2Br as a High Performance Photocatalyst for the Visible Light-driven Asymmetric Alkylation of Aldehyde
NbSe2 Nanosheet Supported PbBiO2Br as a High Performance Photocatalyst for the Visible Light-driven Asymmetric Alkylation of Aldehyde
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DOI：
10.1021/acssuschemeng.5b00182
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发表时间：
2015-05-01
影响因子：
8.4
通讯作者：
Fan, Xiaobin
中科院分区：
文献类型：
--
作者：
Li, Xiaojie;Wang, Jun;Fan, Xiaobin
可见光光氧化还原催化是一种很有前途的绿色有机合成方法。在这项研究中，PbBiO2Br纳米粒子和NbSe2纳米片的纳米复合材料的制备作为一个高性能的可见光驱动的醛的不对称烷基化的光催化剂。结果发现，少量的NbSe 2（0.5wt%）的PbBiO 2 Br半导体的引入可以导致类似的50%的最终产品的产率增加。研究表明，NbSe2纳米片可以作为一种有效的载体，抑制光生电子空穴对的复合，有助于增强半导体在可见光催化中的光催化性能。
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 similar to 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.