Journal of Petrochemical Universities

Journal of Petrochemical Universities ›› 2024, Vol. 37 ›› Issue (3): 73-80.DOI: 10.12422/j.issn.1006-396X.2024.03.010

• Alternative Fuels and New Materials • Previous Articles    

Synthesis of Mn3O4/CuMnO2 by One-Step Hydrothermal Method and Its Photo-Fenton Reaction Performance

Zhe LI(), Fangfang WANG, Changdong CHEN()   

  1. School of Petrochemical Engineering,Liaoning Petrochemical University,Fushun Liaoning 113001,China
  • Received:2024-01-13 Revised:2024-05-16 Published:2024-06-25 Online:2024-06-18
  • Contact: Changdong CHEN

一步水热法合成Mn3O4/CuMnO2及其光芬顿反应性能的研究

李哲(), 王芳芳, 陈常东()   

  1. 辽宁石油化工大学 石油化工学院,辽宁 抚顺 113001
  • 通讯作者: 陈常东
  • 作者简介:李哲(1998-),男,硕士研究生,从事光催化材料方面的研究;E-mail:1415806233@qq.com
  • 基金资助:
    教育部“春晖计划”合作科研项目(2020703-8);国家留学基金委公派访学学者面上项目(CSC202008210025);辽宁省教育厅项目(LJKMZ20220736)

Abstract:

Heterogeneous Mn3O4/CuMnO2 catalyst CMO-A is prepared by a one-step hydrothermal method using cupric chloride dihydrate and manganese chloride tetrahydrate as raw materials.The composition of the samples prepared at different temperatures is analyzed by X-ray diffraction analysis.Using mercury lamp as light source and 50 mg/L Rhodamine B(RhB) solution as contaminant model,the photo-Fenton reaction performance of the prepared CMO-A sample is tested.The results show that CMO-150 has the best degradation effect on RhB solution when the reaction temperature is 150 ℃,and the degradation rate reaches 98.01% when the reaction time is 15 min.The optimal reaction conditions and cyclic stability of CMO-150 catalyst are investigated.The experimental results show that the optimal reaction conditions are 0.2 mol/L H2O2,50 mg CMO-150 catalyst,50 mg/L RhB solution and pH=3.0.After 5 cycles,the degradation rate only decreases by 22.24% at 15 min.The main active species in the reaction is hydroxyl radical (·OH) through the sacrificial agent experiment,and the reaction mechanism is explored by combining with the control experiment.

Key words: Hydrothermal method, CuMnO2, Heterojunction, Photo-Fenton reaction, Rhodamine B

摘要:

以二水合氯化铜、四水合氯化锰为原料,通过一步水热法制备了Mn3O4/CuMnO2异质结构催化剂CMO-AA为水热合成温度);通过X射线粉末衍射仪对不同合成温度下制备的样品进行了组成分析;以汞灯为光源,50 mg/L罗丹明B(RhB)溶液作为污染物模型,对所制备CMO-A样品的光芬顿反应性能进行了测试;向反应体系中加入牺牲剂,结合对照实验探究了反应机理。结果表明,在反应温度为150 ℃时合成的样品CMO-150对RhB溶液的降解效果最好,降解时间为15 min时降解率可达98.01%;0.2 mol/L H2O2、50 mg CMO-150催化剂、50 mg/L RhB溶液、pH=3.0为最佳反应条件;经过5次循环后,降解时间为15 min时降解率仅下降22.24%;反应的主要活性物种为羟基自由基(·OH);结合对照实验,对反应机理进行了探究。

关键词: 水热法, CuMnO2, 异质结, 光芬顿反应, 罗丹明B

CLC Number: 

Cite this article

Zhe LI, Fangfang WANG, Changdong CHEN. Synthesis of Mn3O4/CuMnO2 by One-Step Hydrothermal Method and Its Photo-Fenton Reaction Performance[J]. Journal of Petrochemical Universities, 2024, 37(3): 73-80.

李哲, 王芳芳, 陈常东. 一步水热法合成Mn3O4/CuMnO2及其光芬顿反应性能的研究[J]. 石油化工高等学校学报, 2024, 37(3): 73-80.