Advanced Science (Oct 2022)

Fluid Field Modulation in Mass Transfer for Efficient Photocatalysis

  • Baoying Dai,
  • Yihao Zhou,
  • Xiao Xiao,
  • Yukai Chen,
  • Jiahao Guo,
  • Chenchen Gao,
  • Yannan Xie,
  • Jun Chen

DOI
https://doi.org/10.1002/advs.202203057
Journal volume & issue
Vol. 9, no. 28
pp. n/a – n/a

Abstract

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Abstract Mass transfer is an essential factor determining photocatalytic performance, which can be modulated by fluid field via manipulating the kinetic characteristics of photocatalysts and photocatalytic intermediates. Past decades have witnessed the efforts and achievements made in manipulating mass transfer based on photocatalyst structure and composition design, and thus, a critical survey that scrutinizes the recent progress in this topic is urgently necessitated. This review examines the basic principles of how mass transfer behavior impacts photocatalytic activity accompanying with the discussion on theoretical simulation calculation including fluid flow speed and pattern. Meanwhile, newly emerged viable photocatalytic micro/nanomotors with self‐thermophoresis, self‐diffusiophoresis, and bubble‐propulsion mechanisms as well as magnet‐actuated photocatalytic artificial cilia for facilitating mass transfer will be covered. Furthermore, their applications in photocatalytic hydrogen evolution, carbon dioxide reduction, organic pollution degradation, bacteria disinfection and so forth are scrutinized. Finally, a brief summary and future outlook are presented, providing a viable guideline to those working in photocatalysis, mass transfer, and other related fields.

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