中国炼油与石油化工 ›› 2022, Vol. 24 ›› Issue (1): 81-89.

• Catalyst Research • 上一篇    下一篇

硫掺杂g-C3N4多孔纳米片的制备及其光催化降解性能研究

刘源1,赵华1,李会鹏2,蔡天凤3   

  1. 1. 辽宁石油化工大学
    2. 辽宁石油化工大学石油化工学院
    3. 辽宁石油化工大学化学化工与环境学部
  • 收稿日期:2021-06-11 修回日期:2022-01-09 出版日期:2022-03-30 发布日期:2022-03-30
  • 通讯作者: 李会鹏 E-mail:fslhp@sina.com
  • 作者简介:2021-09-30
  • 基金资助:
    辽宁省自然基金指导计划

One-step Synthesis and Photocatalytic Degradation Performance of Sulfur-doped Porous g-C3N4 nanosheets

  • Received:2021-06-11 Revised:2022-01-09 Online:2022-03-30 Published:2022-03-30

摘要: Abstract: In this study, sulfur-doped porous g-C3N4 nanosheets (CN-T-U 1.75) have been synthesized successfully by one-step calcination using urea and thiourea as the precursors. CN-T-U 1.75 exhibited excellent photocatalytic performance for Rhodamine B (RhB) degradation under visible light irradiation, with the kinetic reaction rate constant of 0.01838 min-1. Analysis of the characterization results showed that CN-T-U 1.75 had a larger specific surface area, and the doping caused a change in the energy band structure. Moreover, the catalytic mechanism analysis shows it could produce two oxidation groups of ?O2- and ?OH to degrade pollutants synergistically.

关键词: 硫掺杂g-C3N4, 纳米片, 光催化, 降解

Abstract: Abstract: In this study, sulfur-doped porous g-C3N4 nanosheets (CN-T-U 1.75) have been synthesized successfully by one-step calcination using urea and thiourea as the precursors. CN-T-U 1.75 exhibited excellent photocatalytic performance for Rhodamine B (RhB) degradation under visible light irradiation, with the kinetic reaction rate constant of 0.01838 min-1. Analysis of the characterization results showed that CN-T-U 1.75 had a larger specific surface area, and the doping caused a change in the energy band structure. Moreover, the catalytic mechanism analysis shows it could produce two oxidation groups of ?O2- and ?OH to degrade pollutants synergistically.

Key words: sulfur-doped g-C3N4, nanosheets, photocatalysis, degradation