Journal of Liaoning Petrochemical University

Journal of Liaoning Petrochemical University ›› 2021, Vol. 41 ›› Issue (2): 32-36.DOI: 10.3969/j.issn.1672-6952.2021.02.007

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Preparation of MnFe2O4/TiO2 and Its Fenton⁃Like Photocatalytic Properties

Wang XiaodiLi LihuaZhang JinshengWu XianMa Cheng   

  1. School of Petrochemical Engineering, Liaoning Petrochemical University, Fushun Liaoning 113001, China
  • Received:2020-01-20 Revised:2020-03-16 Published:2021-04-30 Online:2021-05-20

MnFe2O4/TiO2的制备及其类芬顿光催化性能

汪筱迪李丽华张金生吴限马诚   

  1. 辽宁石油化工大学 石油化工学院,辽宁 抚顺 113001
  • 通讯作者: 李丽华(1964-),女,博士,教授,从事新型能源材料的制备及其应用研究;E-mail:llh72@163.com。
  • 作者简介:汪筱迪(1993-),女,硕士研究生,从事新型能源材料的制备及其应用研究;E-mail:24304355@qq.com。
  • 基金资助:
    中国石化科技部项目(219032-3)。

Abstract: MnFe2O4/TiO2 Fenton⁃like photocatalyst was successfully prepared by sol⁃gel method, the structure and morphology of the sample were characterized by XRD, SEM and UV⁃vis. MB was used as the target pollutant for degradation, and the photocatalytic properties of products with different doping amounts were investigated in visible light. The results show that: The degradation rate of TMF Fenton⁃like photocatalytic reaction to MB is up to 96.8%, under the optimum conditions, in the iodine⁃tungsten lamp with a light source of 300 W, the doping amount of MnFe2O4 to TiO2 is 2%, the mass of catalyst is 60 mg, pH=11, and the concentration of H2O2 is 8 mmol/L . Under the same conditions, compare with the undoped pure TiO2, the catalytic performance of MnFe2O4/TiO2 for MB under visible light is significantly improved.

Key words: MnFe2O4, TiO2, Photocatalysis, Fenton

摘要: 以溶胶⁃凝胶法成功制备了MnFe2O4/TiO2类芬顿(Fenton)光催化剂,通过XRD、SEM、UV⁃vis对材料的结构和形貌进行表征,并以亚甲基蓝(MB)为目标污染物,对其进行降解,考察了不同掺杂量(质量分数)的产物在可见光下的光催化性能。结果表明,在光源为300 W的碘钨灯、MnFe2O4掺杂量为2%、催化剂质量为60 mg、pH=11、H2O2浓度为8 mmol/L时,光照180 min后,MnFe2O4/TiO2的光催化类Fenton反应对MB的降解率高达96.8%。相同条件下与未掺杂的纯TiO2相比,MnFe2O4/TiO2在可见光下对MB的催化性能有了明显提升。

关键词: 铁酸锰, 二氧化钛, 光催化, 芬顿

Cite this article

Wang Xiaodi, Li Lihua, Zhang Jinsheng, Wu Xian, Ma Cheng. Preparation of MnFe2O4/TiO2 and Its Fenton⁃Like Photocatalytic Properties[J]. Journal of Liaoning Petrochemical University, 2021, 41(2): 32-36.

汪筱迪, 李丽华, 张金生, 吴限, 马诚. MnFe2O4/TiO2的制备及其类芬顿光催化性能[J]. 辽宁石油化工大学学报, 2021, 41(2): 32-36.