Lyu Pin, Hoffman Lauren, Cahua Daniel Valenzuela, Nguyen Son C
Department of Chemistry and Biochemistry, University of California, Merced, 5200 North Lake Road, Merced, California 95343, United States.
Department of Chemistry and Biochemistry, University of North Carolina, Asheville, 1 University Heights, Asheville, North Carolina 28804, United States.
J Phys Chem C Nanomater Interfaces. 2024 Aug 22;128(35):14674-14682. doi: 10.1021/acs.jpcc.4c03940. eCollection 2024 Sep 5.
Metallic nanoparticles have been demonstrated to be versatile photocatalysts, as exemplified by those made from noble and precious metals. Transitioning from precious to earth-abundant metals for sustainable photocatalysis requires benchmarking their catalytic performance. In this work, we attempt to compare the photocatalytic activities of Au, Pd, and Co-B nanoparticles in the reduction of nitrobenzene by hydrazine. Despite their different morphologies and surface structures, Co-B nanoparticles offer the highest catalytic enhancement when comparing their reaction rates under irradiation to those under nonirradiation conditions. The trend of improved photocatalytic performance when transitioning from Au to Pd, and then to Co-B, can be explained by the nature of their d-band positions and corresponding hot carriers photogenerated from interband transitions.
金属纳米颗粒已被证明是多功能光催化剂，以由贵金属制成的那些为例。从贵金属过渡到储量丰富的金属以实现可持续光催化，需要对它们的催化性能进行基准测试。在这项工作中，我们试图比较金、钯和钴硼纳米颗粒在肼还原硝基苯中的光催化活性。尽管它们具有不同的形态和表面结构，但在比较辐照条件下与非辐照条件下的反应速率时，钴硼纳米颗粒提供了最高的催化增强效果。从金到钯，再到钴硼，光催化性能改善的趋势可以通过它们的d带位置以及带间跃迁产生的相应热载流子的性质来解释。
