2023年第43卷第1期化工环保ENVIRONMENTALPROTECTIONOFCHEMICALINDUSTRY·101·α-Fe2O3/γ-Fe2O3/Cu2O的制备及其对橙黄G的催化降解性能侯清瑶,彭雪儿,周琛阳,高丽丽(太原理工大学环境科学与工程学院,山西晋中030600)[摘要]通过对常规CuFeO2进行修饰,合成了复合催化剂α-Fe2O3/γ-Fe2O3/Cu2O(CuFe-13),采用XRD、FTIR、SEM、VSM等技术进行了表征,考察了CuFe-13-过一硫酸盐(PMS)体系对橙黄G(OG)的催化降解性能,分析了催化剂加入量、PMS浓度和反应pH对OG降解性能的影响。实验结果表明:在CuFe-13加入量为0.20g/L、PMS浓度为1.0mmol/L、pH为7.0的条件下,CuFe-13-PMS体系的催化降解性能最佳,反应30min后OG的去除率为100%,反应120min后TOC的去除率为73.4%;在CuFe-13-PMS体系中,起主要作用的活性物种为1O2、SO4-·和·OH。[关键词]α-Fe2O3/γ-Fe2O3/Cu2O;过一硫酸盐(PMS);橙黄G;高级氧化[中图分类号]X703[文献标志码]A[文章编号]1006-1878(2023)01-0101-06[DOI]10.3969/j.issn.1006-1878.2023.01.015Preparationofα-Fe2O3/γ-Fe2O3/Cu2OandcatalyticdegradationofOrangeGHOUQingyao,PENGXueer,ZHOUChenyang,GAOLili(CollegeofEnvironmentalScienceandEngineering,TaiyuanUniversityofTechnology,Jinzhong030600,China)Abstract:Thecompositecatalystα-Fe2O3/γ-Fe2O3/Cu2O(CuFe-13)wassynthesizedbymodifyingconventionalCuFeO2andcharacterizedbyXRD,FT-IR,SEMandVSM.ThecatalyticdegradationcapabilityofCuFe-13-peroxymonosulfate(PMS)systemtoOrangeG(OG)wasinvestigated,andtheeffectsofcatalystamount,PMSconcentrationandreactionpHonOGdegradationwerestudied.Theexperimentalresultsshowthatundertheconditionsofcatalystamount0.20g/L,PMSconcentration1.0mmol/LandreactionpH7.0,thecatalyticdegradationcapabilityofCuFe-13-PMSsystemisthebest,andtheremovalrateofOGis100%after30minofreaction,theremovalrateofTOCis73.4%after120minofreaction.IntheCuFe-13/PMSsystem,themainactivespeciesare1O2,SO4-·and·OH.Keywords:α-Fe2O3/γ-Fe2O3/Cu2O;peroxymonosulfate(PMS);OrangeG;advancedoxidation[收稿日期]2022-03-18;[修订日期]2022-11-04。[作者简介]侯清瑶(1996—),女,山西省吕梁市人,硕士生,电话17836057343,电邮ayaoyaoyao2020@163.com...