Issue 12, 2022

Review on LSPR assisted photocatalysis: effects of physical fields and opportunities in multifield decoupling

Abstract

Since nano scale local surface plasmon resonance (LSPR) can broaden the visible absorption region, enhance the local electromagnetic field and produce a thermal effect simultaneously, the appropriate utilization of the LSPR effect is a noteworthy research direction towards visible light driven photocatalysts with high efficiency and low cost. In this study, the influence mechanism of the optical, electric, magnetic, and thermal physical fields on the photocatalytic efficiency of the LSPR system is for the first time reviewed, based on which the research bottlenecks of this method including the accurate predesign and regulation of the photocatalyst, the interpretation of electron movement and energy transfer mechanism, are specifically analyzed. Due to the micro-nano localization of LSPR, auxiliary methods are needed to reflect the micro electromagnetic and temperature field distribution which are otherwise formidable to measure experimentally. Alternatively, numerical methods with decoupling calculations of nano-scale physical fields are necessary to develop. Therefore, the development potential of different numerical simulation methods including mainstream FDTD, FEM and DDA is subsequently expounded, providing opportunities in resolving the bottleneck issues associated with photocatalysis. It is worth mentioning that although many important advances have been achieved in the preparation and application of LSPR assisted photocatalysts, the convincing function mechanism of LSPR is still lacking due to its multifield synergistic enhancement effect.

Graphical abstract: Review on LSPR assisted photocatalysis: effects of physical fields and opportunities in multifield decoupling

Article information

Article type
Review Article
Submitted
03 มี.ค. 2565
Accepted
28 เม.ย. 2565
First published
28 เม.ย. 2565
This article is Open Access
Creative Commons BY-NC license

Nanoscale Adv., 2022,4, 2608-2631

Review on LSPR assisted photocatalysis: effects of physical fields and opportunities in multifield decoupling

S. Lv, Y. Du, F. Wu, Y. Cai and T. Zhou, Nanoscale Adv., 2022, 4, 2608 DOI: 10.1039/D2NA00140C

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