Vu Nhu-Nang, Kaliaguine Serge, Do Trong-On
Department of Chemical Engineering, Laval University, 1065 Avenue de la Médecine, Québec, Québec, G1V 0A6, Canada.
ChemSusChem. 2020 Aug 21;13(16):3967-3991. doi: 10.1002/cssc.202000905. Epub 2020 Jul 2.
Plasmonic photocatalysis is among the most efficient processes for the photoreduction of CO into valuable fuels. The formation of localized surface plasmon resonance (LSPR), energy transfer, and surface reaction are the significant steps in this process. LSPR plays an essential role in the performance of plasmonic photocatalysts as it promotes an excellent, light absorption over a broad wavelength range while simultaneously facilitating an efficient energy transfer to semiconductors. The LSPR transfers energy to a semiconductor through various mechanisms, which have both advantages and disadvantages. This work points out four critical features for plasmonic photocatalyst design, that is, plasmonic materials, size, shape of plasmonic nanoparticles (PNPs), and the contact between PNPs and semiconductor. Various developed plasmonic photocatalysts, as well as their photocatalytic performance in CO photoreduction, are reviewed and discussed. Finally, perspectives of advanced architectures and structural engineering for plasmonic photocatalyst design are put forward with high expectations to achieve an efficient CO photoreduction shortly.
等离子体光催化是将CO光还原为有价值燃料的最有效过程之一。局域表面等离子体共振（LSPR）的形成、能量转移和表面反应是该过程中的重要步骤。LSPR在等离子体光催化剂的性能中起着至关重要的作用，因为它能在很宽的波长范围内促进优异的光吸收，同时促进向半导体的高效能量转移。LSPR通过多种机制将能量转移到半导体，这些机制既有优点也有缺点。这项工作指出了等离子体光催化剂设计的四个关键特征，即等离子体材料、尺寸、等离子体纳米颗粒（PNP）的形状以及PNP与半导体之间的接触。综述并讨论了各种已开发的等离子体光催化剂及其在CO光还原中的光催化性能。最后，对等离子体光催化剂设计的先进结构和结构工程提出了展望，寄希望于在不久的将来实现高效的CO光还原。
