辽宁石油化工大学学报

辽宁石油化工大学学报 ›› 2022, Vol. 42 ›› Issue (5): 13-17.DOI: 10.3969/j.issn.1672-6952.2022.05.002

• 化学与化学工程 • 上一篇    下一篇

Fe掺杂g⁃C3N4光催化活化过硫酸钠降解偶氮染料

亢春(), 马会强(), 李爽   

  1. 辽宁石油化工大学 环境与安全工程学院,辽宁 抚顺 113001
  • 收稿日期:2021-03-19 修回日期:2021-04-09 出版日期:2022-10-25 发布日期:2022-11-18
  • 通讯作者: 马会强
  • 作者简介:亢春(1996⁃),女,硕士研究生,从事废水高级氧化处理方面的研究;E⁃mail:2209354315@qq.com
  • 基金资助:
    辽宁省高等学校创新人才项目(LR2016059);辽宁省教育厅基本科研项目(L2017LQN001)

Fe⁃Doped g⁃C3N4 Photocatalytic Activation of Persulfate for Degradation of Azo Dyes

Chun Kang(), Huiqiang Ma(), Shuang Li   

  1. School of Environmental and Safety Engineering,Liaoning Petrochemical University,Fushun Liaoning 113001,China
  • Received:2021-03-19 Revised:2021-04-09 Published:2022-10-25 Online:2022-11-18
  • Contact: Huiqiang Ma

摘要:

以硝酸铁为铁源,通过浸渍法制备Fe?C3N4复合材料。采用FT?IR对Fe?C3N4材料进行了表征分析。结果表明,Fe掺杂不改变g?C3N4的骨架结构,可以增加g?C3N4材料的光催化性能。以橙黄II为目标污染物,在可见光下Fe?C3N4催化活化过硫酸钠降解偶氮染料,考察了过硫酸钠物质的量、Fe?C3N4质量浓度、橙黄II质量浓度及pH对降解效果的影响,并对反应进行了动力学研究,分析了所制备的催化材料的稳定性。结果表明,在Fe?C3N4质量浓度为2.0 g/L、过硫酸钠与污染物物质的量比为1 200∶1和pH=3的条件下,降解效果最好,降解率为77.8%;Fe?C3N4/过硫酸钠体系对偶氮染料的降解满足准二级动力学方程;Fe?C3N4材料具有可重复利用性。

关键词: 铁掺杂石墨相氮化碳, 过硫酸钠, 光催化, 偶氮染料

Abstract:

Ferric nitrate was used to provide iron source, and Fe?C3N4 composite material was prepared by impregnation method. FT?IR was used to characterize and analyze the prepared materials. The results show that Fe doping does not change the skeleton structure of g?C3N4 and can increase the photocatalytic performance of g?C3N4 materials. Taking orange II as the target pollutant, Fe?C3N4 catalyzed the activation of persulfate to degrade azo dyes under visible light. The effects of persulfate dosage, Fe?C3N4 dosage, pollutant concentration and pH conditions on the degradation effect were examined, and the reaction kinetics was studied to analyze the stability of the prepared catalytic materials. The results show that when the Fe?C3N4 concentration is 2.0 g/L, the molar ratio of persulfate to pollutants is 1 200∶1, and pH=3, the degradation effect is best, and the degradation rate is 77.8%; Fe?C3N4/persulfate system is dual the degradation of nitrogen dyes satisfies the quasi?second?order kinetic equation; Fe?C3N4 material is reusable.

Key words: Iron?doped graphite phase carbon nitride, Persulfate, Photocatalysis, Azo dye

中图分类号: 

引用本文

亢春, 马会强, 李爽. Fe掺杂g⁃C3N4光催化活化过硫酸钠降解偶氮染料[J]. 辽宁石油化工大学学报, 2022, 42(5): 13-17.

Chun Kang, Huiqiang Ma, Shuang Li. Fe⁃Doped g⁃C3N4 Photocatalytic Activation of Persulfate for Degradation of Azo Dyes[J]. Journal of Liaoning Petrochemical University, 2022, 42(5): 13-17.

使用本文

0
    /   /   推荐

导出引用管理器 EndNote|Ris|BibTeX

链接本文: http://journal.lnpu.edu.cn/CN/10.3969/j.issn.1672-6952.2022.05.002

               http://journal.lnpu.edu.cn/CN/Y2022/V42/I5/13