期刊
CHEMICAL ENGINEERING JOURNAL
卷 470, 期 -, 页码 -出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.cej.2023.144100
关键词
Polarization; Bismuth; Non-centrosymmetric materials; Photocatalysis; Environmental remediation; Energy conversion
In recent years, great progress has been made in enhancing photocatalytic activity through polarization field to promote charge transfer and suppress recombination. Polarization-enhanced photocatalysis has gained increasing attention in the field. Among non-centrosymmetric (NCS) materials, Bismuth (Bi)-based NCS materials have attracted extensive attention due to their diverse composition, unique electronic structures, distinctive physiochemical characteristics, and hybrid electronic band structure. However, a review on the classification and application of Bi-based NCS materials in polarization-enhanced photocatalysis is still lacking. In this study, we provide a systematic overview of the application of Bi-based NCS materials in polarization-enhanced photocatalysis, starting with their classification and synthesis. We also introduce the fundamental mechanisms of band bending and charge migration regulated by three types of polarization effects (ferro-, piezo-, and pyroelectric effects). By analyzing the structural-activity relationships, we summarize the recent advances of Bi-based NCS materials in polarization-promoted photocatalytic processes. Optimization strategies to enhance their photocatalytic performance are also discussed. Finally, we discuss the current challenges and future prospects of Bi-based NCS materials in polarization-promoted photocatalysis.
The past several years has witnessed great advances in boosting photocatalytic activity via polarization field to promote the transfer and suppress the recombination of charge carriers. Polarization-enhanced photocatalysis have triggered soaring attention in photocatalytic field. Polarity is a distinct property, widely exists in the interior of non-centrosymmetric (NCS) materials. Among these materials, Bismuth (Bi)-based NCS materials have attracted extensive attention owing to the diverse composition, unique electronic structures, distinctive physi-ochemical characteristics and hybrid electronic band structure. However, a review that declare the classification and application of Bi-based NCS materials in polarization-enhanced photocatalysis is still absent. Herein, we present a systematic overview on the Bi-based NCS materials applied in polarization-enhanced photocatalysis, starting with the classification and synthesis. Secondly, the fundamental mechanisms of band bending and charge migration regulated by three kinds of polarization effects (ferro-, piezo-, and pyroelectric effects) are introduced. Based on analyzing the structural-activity relationships, the recent advances of Bi-based NCS materials in polarization-promoted photocatalytic processes are overviewed. Meanwhile the optimization strategies to enhance their photocatalytic performance are introduced. Finally, the current challenges and future prospects of Bi-based NCS materials in polarization-promoted photocatalysis are discussed.
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