Design, Fabrication, and Mechanism of Nitrogen‐Doped Graphene‐Based Photocatalyst

光催化 石墨烯 材料科学 纳米技术 兴奋剂 光电子学 催化作用 化学 有机化学
作者
Chuanbiao Bie,Huogen Yu,Bei Cheng,Wingkei Ho,Jiajie Fan,Jiaguo Yu
出处
期刊:Advanced Materials [Wiley]
卷期号:33 (9) 被引量:387
标识
DOI:10.1002/adma.202003521
摘要

Solving energy and environmental problems through solar-driven photocatalysis is an attractive and challenging topic. Hence, various types of photocatalysts have been developed successively to address the demands of photocatalysis. Graphene-based materials have elicited considerable attention since the discovery of graphene. As a derivative of graphene, nitrogen-doped graphene (NG) particularly stands out. Nitrogen atoms can break the undifferentiated structure of graphene and open the bandgap while endowing graphene with an uneven electron density distribution. Therefore, NG retains nearly all the advantages of original graphene and is equipped with several novel properties, ensuring infinite possibilities for NG-based photocatalysis. This review introduces the atomic and band structures of NG, summarizes in situ and ex situ synthesis methods, highlights the mechanism and advantages of NG in photocatalysis, and outlines its applications in different photocatalysis directions (primarily hydrogen production, CO2 reduction, pollutant degradation, and as photoactive ingredient). Lastly, the central challenges and possible improvements of NG-based photocatalysis in the future are presented. This study is expected to learn from the past and achieve progress toward the future for NG-based photocatalysis.
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