Issue

Vol. 17 (2025)

An Overview of Dynamic Descriptions for Nanoscale Materials in Particulate Photocatalytic Systems from Spatiotemporal Perspectives

https://doi.org/10.1007/s40820-025-01687-3
Jiawei Yan
Research Center for Combustion and Environment Technology, Shanghai Jiao Tong University, Shanghai 200240, People’s Republic of China
Zhidong Wei
College of Smart Energy, Shanghai Jiao Tong University, Shanghai 200240, People’s Republic of China
Kai Takagi
Research Institute for Science and Technology, Tokyo University of Science, Chiba 278‑8510, Japan
Masaya Motodate
Research Institute for Science and Technology, Tokyo University of Science, Chiba 278‑8510, Japan
Zhi Jiang
Research Center for Combustion and Environment Technology, Shanghai Jiao Tong University, Shanghai 200240, People’s Republic of China
Chiaki Terashima
Research Institute for Science and Technology, Tokyo University of Science, Chiba 278‑8510, Japan
Wenfeng Shangguan
Research Center for Combustion and Environment Technology, Shanghai Jiao Tong University, Shanghai 200240, People’s Republic of China

Corresponding Author: Wenfeng Shangguan

shangguan@sjtu.edu.cn

Nano-Micro Letters, Vol. 17 (2025), Article Number: 196

Abstract

Particulate photocatalytic systems using nanoscale photocatalysts have been developed as an attractive promising route for solar energy utilization to achieve resource sustainability and environmental harmony. Dynamic obstacles are considered as the dominant inhibition for attaining satisfactory energy-conversion efficiency. The complexity in light absorption and carrier transfer behaviors has remained to be further clearly illuminated. It is challenging to trace the fast evolution of charge carriers involved in transfer migration and interfacial reactions within a micro–nano-single-particle photocatalyst, which requires spatiotemporal high resolution. In this review, comprehensive dynamic descriptions including irradiation field, carrier separation and transfer, and interfacial reaction processes have been elucidated and discussed. The corresponding mechanisms for revealing dynamic behaviors have been explained. In addition, numerical simulation and modeling methods have been illustrated for the description of the irradiation field. Experimental measurements and spatiotemporal characterizations have been clarified for the reflection of carrier behavior and probing detection of interfacial reactions. The representative applications have been introduced according to the reported advanced research works, and the relationships between mechanistic conclusions from variable spatiotemporal measurements and photocatalytic performance results in the specific photocatalytic reactions have been concluded. This review provides a collective perspective for the full understanding and thorough evaluation of the primary dynamic processes, which would be inspired for the improvement in designing solar-driven energy-conversion systems based on nanoscale particulate photocatalysts.


Highlights:
1 The dynamic descriptions for nanoscale particulate photocatalysts have been elucidated in terms of the irradiation field, photo-excited carrier behavior and interfacial reaction in the photocatalytic systems.
2 The advanced spatiotemporal characterization techniques and evaluation methods are collected with the introduction of recent works and applications.
3 The challenges and prospects in the elaborate investigation of photocatalytic dynamics are discussed.

Keywords

Dynamic description Particulate photocatalytic system Nanoscale photocatalyst Spatiotemporal characterization
Yan, Jiawei, Zhidong Wei, Kai Takagi, Masaya Motodate, Zhi Jiang, Chiaki Terashima, and Wenfeng Shangguan. 2025. “An Overview of Dynamic Descriptions for Nanoscale Materials in Particulate Photocatalytic Systems from Spatiotemporal Perspectives”. Nano-Micro Letters 17 (March):196. https://doi.org/10.1007/s40820-025-01687-3.
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