工业水处理 ›› 2023, Vol. 43 ›› Issue (8): 38-47. doi: 10.19965/j.cnki.iwt.2022-0583

• 专论与综述 • 上一篇    下一篇

氮化碳改性光催化材料在水污染治理中的应用

于会娟1,2(), 张英杰1,2(), 权泓1,2, 高翠萍1, 田春梅1, 朱丹1, 杨荣彬3   

  1. 1. 大理大学农学与生物科学学院,云南大理 671000
    2. 云南省高校微生物生态修复技术 重点实验室,云南大理 671000
    3. 大理大学工程学院,云南大理 671000
  • 收稿日期:2023-05-25 出版日期:2023-08-20 发布日期:2023-08-28
  • 作者简介:

    于会娟(1998—),硕士。电话:18987246945,E-mail:

    张英杰,博士,讲师。电话:15687786161,E-mail:

  • 基金资助:
    云南省基础研究计划青年项目(202201AU070004); 云南省教育厅科学研究基金项目(2023Y1049); 云南省科技厅地方本科高校基础研究联合专项面上项目(202101BA070001-079); 大理大学高层次人才引进科研启动项目(KYBS2021069)

Application of carbon nitride modified photocatalytic materials in water pollution treatment

Huijuan YU1,2(), Yingjie ZHANG1,2(), Hong QUAN1,2, Cuiping GAO1, Chunmei TIAN1, Dan ZHU1, Rongbin YANG3   

  1. 1. College of Agriculture and Biological Science,Dali University,Dali 671000,China
    2. Key Laboratory of Ecological Microbial Remediation Technology of Yunnan Higher Education Institutes,Dali University,Dali 671000,China
    3. School of Engineering,Dali University,Dali 671000,China
  • Received:2023-05-25 Online:2023-08-20 Published:2023-08-28

摘要:

石墨相氮化碳(g-C3N4)是一种具有良好热稳定性和化学稳定性的光催化材料,具有制备原料及制备方式多样、形貌结构易调控等特征。g-C3N4及其改性材料在去除水体中重金属、有机污染物和氨氮等污染物方面得到高度关注。但因其存在光生电子-空穴对易复合、可见光响应范围窄、比表面积较小等缺点,在实际应用中受到限制。概述了g-C3N4材料的改性方法,如形貌调控、掺杂和构建异质结等,归纳了改性g-C3N4材料对水体中重金属、有机污染物和氨氮等污染物去除的相关研究,同时探究了不同制备方式得到的改性g-C3N4材料对水体中污染物的去除效果,以及在去除污染物过程中所涉及到的相关反应机理。最后对g-C3N4改性材料现阶段存在的问题进行了总结,并对未来的研究方向做出展望,为今后水体中污染物的去除研究提供参考。

关键词: 石墨相氮化碳, 催化剂, 重金属去除, 有机污染物降解

Abstract:

Graphite phase carbon nitride(g-C3N4) material is a kind of photocatalytic material with good thermal and chemical stability. Because of its characteristics of various preparation raw materials and preparation methods,easy to control the morphology and structure,g-C3N4 and its modified materials have attracted great attention in the removal of heavy metals,organic pollutants and ammonia nitrogen in water. However,it has some disadvantages,such as easy recombination of photoelectron-hole pairs,narrow response range of visible light and small specific surface area,which restrict its application in practice. This paper introduced the modification methods of g-C3N4 material,such as morphology control,doping and constructing heterojunction,and summarized the research on removal of organic pollutants,heavy metals and ammonia nitrogen in water by modified g-C3N4 materials. Furthermore,the preparation of the different way to get a modified g-C3N4 materials on the removal efficiency of pollutants in water,and the reaction mechanisms involved in the removal of contaminants were explored. Finally,the current problems of graphite g-C3N4 modified materials were summarized,and the future research directions for the removal of pollutants in water were pointed out.

Key words: graphite phase carbon nitride, catalyst, heavy metal removal, organism degradation

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