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过程工程学报 ›› 2022, Vol. 22 ›› Issue (2): 162-175.DOI: 10.12034/j.issn.1009-606X.221054

• 综述 • 上一篇    下一篇

g-C3N4制备方法及其光催化性能提升途径的研究进展

杜含笑1,2,3,4,5， 季娟1,2,3,4,5， 秦辰伟1,2,3,4,5， 张泽1,2,3,4,5， 李锋锋1,2,3,4,5*， 沈毅1,2,3,4,5*   

  1. 1. 华北理工大学材料科学与工程学院，河北 唐山 063210 2. 河北省无机非金属材料实验室，河北 唐山 063210 3. 河北省唐山市陶瓷产业技术研究院，河北 唐山 063210 4. 华北理工大学新材料产业技术研究院，河北 唐山 063210 5. 唐山市环境功能材料重点实验室，河北 唐山 063210
  • 收稿日期:2021-02-22 修回日期:2021-04-24 出版日期:2022-02-28 发布日期:2022-02-28
  • 通讯作者: 李锋锋 lifengfeng81@163.com
  • 作者简介:杜含笑(1998-)，女，河北省邯郸市人，主要研究方向为光催化材料和复合材料，E-mail: 13731002744@163.com；通讯联系人，李锋锋，E-mail: lifengfeng81@163.com；沈毅，E-mail: tsshenyi@sina.com.
  • 基金资助:
    国家自然科学基金项目;河北省高等学校科学技术研究项目;河北省博士后资助项目;华北理工大学大学生创新创业培训计划的资助项目

Preparation methods of g-C3N4 and its photocatalytic performance improvement approaches—a review

Hanxiao DU1,2,3,4,5,  Juan JI1,2,3,4,5,  Chenwei QIN1,2,3,4,5,  Ze ZHANG1,2,3,4,5,  Fengfeng LI1,2,3,4,5*,  Yi SHEN1,2,3,4,5*   

  1. 1. College of Materials Science and Engineering, North China University of Science and Technology, Tangshan, Hebei 063210, China 2. Hebei Provincial Laboratory of Inorganic Nonmetallic Materials, Tangshan, Hebei 063210, China 3. Hebei Tangshan Research Institute of Ceramic Industry Technology, Tangshan, Hebei 063210, China 4. New Material Industry Technology Institute, North China University of Science and Technology, Tangshan, Hebei 063210, China 5. Tangshan City Key Laboratory of Environment Functional Materials, Tangshan, Hebei 063210, China
  • Received:2021-02-22 Revised:2021-04-24 Online:2022-02-28 Published:2022-02-28
  • Supported by:
    National Natural Science Fund of China;Scientific and Technological Research Projects of Colleges and Universities in Hebei Province;Postdoctoral Program of Hebei Province;Entrepreneurship Training Program for College Students of North China University of Science and Technology

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摘要： 聚合物半导体g-C3N4因较窄带隙、稳定性高、成本低等特点而在污染物降解和清洁能源生产方面引起了广泛关注。但纯g-C3N4光催化剂电荷分离率低、电荷重组率高等缺点导致其光催化能力不理想，因此改善g-C3N4的光催化性能是目前光催化领域的研究热点。通过构造异质结、元素掺杂等改性手段制备的g-C3N4基光催化剂增强了对可见光的吸收，光催化能力强，拥有较好的工业应用前景。本工作首先简单介绍了g-C3N4基光催化剂的研究现状，其次概述了其制备方法的研究现状并介绍了几种制备g-C3N4工艺及特点，说明了应用不同制备工艺时应注意的问题。此外对其光催化性能提升途径的机理进行阐述，并且指明了发展方向，最后进行总结和展望。在后续研究中，若能有效结合材料科学与环境科学的优势，开发结构稳定和光催化性能优异的g-C3N4基光催化复合材料对提高其实际价值具有重要意义。

关键词: g-C3N4, 光催化, 性能提升, 制备方法, 研究进展

Abstract: The polymer semiconductor g-C3N4 has attracted widespread attention in fields such as pollutant degradation and clean energy production due to its features such as narrow band gap, high stability, low cost, etc. However, there are some drawbacks of g-C3N4 that it has low charge separation rate, high charge recombination rate, etc., which lead to its unsatisfactory photocatalytic ability. Therefore, improving the photocatalytic performance of g-C3N4 has become a research hotspot in the field of photocatalysis. The g-C3N4-based photocatalysts prepared by heterojunction construction, elemental doping and other modification methods can enhance the absorption of visible light and have strong photocatalytic ability, which have wide industrial application prospects. In this work, firstly, the research actuality of g-C3N4-based photocatalysts was briefly introduced. Secondly, this work discussed the research status of preparation methods and introduced several preparation methods for g-C3N4. It also explained the problems that should be paid attention to when applying different preparation processes. In addition, various mechanisms of the approaches to improve its photocatalytic performance were illustrated, and the development directions were pointed out, summarized and prospected. In the follow-up research, if the advantages of material science and environmental science can be effectively combined to prepare g-C3N4-based photocatalyst composites with stable structure and excellent photocatalytic performance, it will be of great significance to improve practical value of g-C3N4.

Key words: g-C3N4, photocatalysis, performance improvement, preparation, research progress