第51卷第3期2023年2月广州化工GuangzhouChemicalIndustryVol.51No.3Mar.2023MOF基光催化剂的制备及其光催化产氢性能研究∗曾俊辉1,王明华2,邓哲1,易杰1(1嘉兴学院材料与纺织工程学院,浙江嘉兴314001;2嘉兴市海盐生态环境监测站,浙江嘉兴314300)摘要:通过在球形中空结构Ni-MOF的表面原位生长CdS纳米颗粒制备了CdS/Ni-MOF可见光驱动的非贵金属光催化剂。相对纯CdS纳米颗粒,CdS/Ni-MOF的产氢性能有明显提升,CdS/Ni-MOF(60)复合光催化剂的产氢率达到了211.5μmol·h-1,是纯CdS产氢率的6倍,且其具有良好的光催化稳定性。CdS和Ni-MOF的相匹配的能带位置实现了光生电子的有效分离,加速电子转移,减少了CdS中光生电子与空穴的复合几率,从而有效阻碍了CdS的光腐蚀现象。关键词:金属有机骨架;电荷分离;光催化产氢中图分类号:O649.2文献标志码:A文章编号:1001-9677(2023)03-0079-04∗基金项目:浙江省科技创新活动计划(新苗人才,2021R417038)。通讯作者:易杰(1988-),男,博士,讲师,研究方向为纳米功能材料的开发应用与表征分析。PreparationofMOF-basedPhotocatalystandItsPhotocatalyticPerformanceforHydrogenProduction∗ZENGJun-hui1,WANGMing-hua2,DENGZhe1,YIJie1(1CollegeofMaterialandTextileEngineering,JiaxingUniversity,ZhejiangJiaxing314001;2EcologicalEnvironmentMonitoringStationofHaiyan,ZhejiangJiaxing314300,China)Abstract:Thevisible-drivennon-noblemetalCdS/Ni-MOFphotocatalystswerepreparedbyin-situgrowthofCdSnanoparticlesonthesurfaceofsphericalhollowstructureNi-MOF.ComparedwithpureCdSnanoparticles,thehydrogenproductionperformanceofCdS/Ni-MOFcompositephotocatalystwassignificantlyimproved,andthehydrogenproductionrateofCdS/Ni-MOF(60)compositephotocatalystreached211.5μmol·h-1,whichwas6timesofthatofpureCdS.AndCdS/Ni-MOF(60)compositephotocatalystshowedthegoodstabilityandrecycling.DuetothebandpositionmatchingbetweenCdSandNi-MOF,theeffectiveseparationofphotogeneratedelectronswadrealized,whichacceleratedelectrontransferandreducedtherecombinationprobabilityofphotogeneratedelectronsandholedinCdS,thuseffectivelyhinderedthephotocorrosionphenomenonofCdS.Keywords:metal-organicskeleton;chargeseparation;photocatalytichydrogenproduction伴随着全球能源需求的大幅持续增长以及不...
