工业水处理 ›› 2022, Vol. 42 ›› Issue (6): 125-132. doi: 10.19965/j.cnki.iwt.2021-0370

• 专论与综述 • 上一篇    下一篇

铁基石墨相氮化碳复合材料在水处理中的研究进展

刘晨1,2(), 杜永娟1, 焦钰珠1, 孙迎雪1,3,4()   

  1. 1. 北京工商大学生态环境学院,北京 100048
    2. 北京恩菲环保股份有限公司,北京 100038
    3. 北京工商大学国家环境保护食品链污染防治重点实验室,北京 100048
    4. 北京工商 大学中国轻工业清洁生产与资源综合利用重点实验室,北京 100048
  • 收稿日期:2022-02-28 出版日期:2022-06-20 发布日期:2022-06-22
  • 作者简介:

    刘晨(1995— ),硕士研究生。电话:18600549517,E-mail:

    孙迎雪,博士,教授。E-mail:

Research progress on iron-based graphitic carbon nitride composites in water treatment

Chen LIU1,2(), Yongjuan DU1, Yuzhu JIAO1, Yingxue SUN1,3,4()   

  1. 1. School of Ecology and Environment,Beijing Technology and Business University,Beijing 100048,China
    2. Beijing ENFI Environmental Protection Co. ,Ltd. ,Beijing 100038,China
    3. State Environmental Protection Key Laboratory of Food Chain Pollution Control,Beijing Technology and Business University,Beijing 100048,China
    4. Key Laboratory of Cleaner Production and Integrated Resource Utilization of China National Light Industry,Beijing Technology and Business University,Beijing 100048,China
  • Received:2022-02-28 Online:2022-06-20 Published:2022-06-22

摘要:

铁基石墨相氮化碳复合材料结合了铁基材料、石墨相氮化碳(g-C3N4)以及异质结结构的优点,在促进复合材料光生电子-空穴的分离、扩大可见光响应能力、提高材料光催化性能等方面有着显著的优势。综述了铁基石墨相氮化碳异质结体系的基本分类、结构特点及其研究进展,包括Ⅱ型异质结体系(n-n结、p-n结)、Z型异质结体系(全固态Z结、直接Z结)以及典型非异质结体系(铁离子掺杂、核壳结构)中光生载流子的转移机制,总结了铁基材料在不同异质结体系中光催化降解有机物过程的氧化机理与增强机制。

关键词: 石墨相氮化碳, 铁物种, 异质结, 光催化机制, 水处理

Abstract:

Iron-based graphitic carbon nitride integrates the advantages of iron-based materials,graphitic carbon nitride(g-C3N4) and heterojunction to accelerate the separation of photo-induced charges,extend the visible light absorption range and enhance the photocatalytic performance of composites. This review aimed to give a comprehensive introduction in basic classifications,structural features and research progress of iron-based graphitic carbon nitride heterojunction,including the photogenerated charges transfer mechanism of type-Ⅱ heterojunction(n-n heterojunction and p-n heterojunction),Z-scheme heterojunction(all-solid-state Z-scheme and direct Z-scheme) and typical non-heterojunction (iron ion doping,core-shell structure). The oxidation and activity-enhanced mechanisms of iron-based materials in the photocatalytic degradation of organic pollutants in different heterojunction systems were summarized.

Key words: graphitic carbon nitride, iron species, heterojunction, photocatalytic mechanism, water treatment

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