文章编号：1009−444X（2023）01−0012−08CoFe2O4/BiOI磁性光催化剂的制备及其六价铬去除应用叶恒暄1，季璇1，李芷妍1，方青1，张慧青2，黄婷婷1，杨靖霞1（1.上海工程技术大学化学化工学院,上海201620；2.河南省科学院化学研究所有限公司,郑州450002）摘要：水体中的重金属六价铬离子对人体、环境均有严重影响，其含量是水体质量优劣的重要指标之一，需要对其进行严格控制.以BiOI为光催化剂，CoFe2O4（简称CFO）作为复合材料的磁性成分，合成CFO/BiOI纳米磁性光催化材料，研究不同摩尔比的CFO/BiOI对六价铬去除性能的影响.研究发现，CFO/BiOI复合材料在六价铬催化去除中，表现出比纯CFO和BiOI更好的性能.此外，CFO的引入赋予了材料磁性，可将催化材料通过磁力快速分离.关键词：磁性纳米材料；光催化；六价铬去除中图分类号：O69文献标志码：APreparationofCoFe2O4/BiOImagneticphotocatalystanditsapplicationinCr(VI)removalYEHengxuan1，JIXuan1，LIZhiyan1，FANGQing1，ZHANGHuiqing2，HUANGTingting1，YANGJingxia1（1.SchoolofChemistryandChemicalEngineering,ShanghaiUniversityofEngineeringScience,Shanghai201620,China；2.InstituteofChemistryCo.,Ltd.HenanAcademyofSciences,Zhengzhou450002,China）Abstract：Theheavymetalhexavalentchromium(Cr(VI))ioninwaterhasseriousimpactonhumanbodyandenvironment,anditsconcentrationisoneoftheimportantindicatorsofwaterquality,whichneedstobestrictlycontrolled.CFO/BiOInanometermagneticphotocatalystmaterialwassynthesizedwithBiOIasphotocatalystandCoFe2O4(CFOforshort)asmagneticcomponentofcompositematerial,andtheeffectofdifferentproportionofCFO/BiOIontheremovalperformanceofhexavalentchromiumwasstudied.ItwasfoundthattheCFO/BiOIcompositeexhibitedbettercatalyticperformancethanpureCFOandBiOIintheapplicationofhexavalentchromiumremoval.ThismaybecausedbytheconstructionofheterojunctionbetweenCFOandBiOI,whichacceleratedthechargeseparation.Inaddition,theintroductionofCFOendowedtheBiOImaterialwithmagnetism,whichallowedrapidlyseparationofthecatalystthroughmagneticforce.Keywords：magneticnano-material；photocatalysis；hexavalentchromium(Cr(VI))removal六价铬具有难降解特性，随着社会工业化水平的发展，水体中的重金属六价铬离子污染...
