g-C3N4复合光催化材料的设计合成及其光催化性能研究中期报告摘要：本文研究了一种新型g-C3N4复合光催化材料的设计合成及其光催化性能，并进行了中期报告。首先，以尿素为原料，采用水热法合成纳米片状的g-C3N4；然后，利用溶剂挥发法和离子交换法，制备了ZnO和Fe2O3纳米颗粒，将其和g-C3N4复合，制备了ZnO/g-C3N4和Fe2O3/g-C3N4光催化剂；最后，采用紫外-可见漫反射光谱、透射电镜、X射线衍射、傅里叶变换红外光谱等方法，对所制备的复合光催化剂进行了表征，并研究了其光催化性能。初步结果表明，ZnO/g-C3N4和Fe2O3/g-C3N4光催化剂具有优异的光催化性能，对有机污染物的降解效果优于纯的g-C3N4光催化剂。进一步研究将对优化复合光催化剂的制备及其应用于环境治理领域具有重要的意义。关键词：g-C3N4；光催化剂；ZnO；Fe2O3；复合材料Abstract:Inthisreport,anovelg-C3N4compositephotocatalystwasdesignedandsynthesized,anditsphotocatalyticperformancewasstudied.Firstly,nanoscaleg-C3N4sheetsweresynthesizedviaahydrothermalmethodusingureaastherawmaterial.Then,ZnOandFe2O3nanosizeparticleswerepreparedbysolventevaporationandionexchangemethod,respectively.ZnO/g-C3N4andFe2O3/g-C3N4photocatalystswereobtainedbycombiningthemwithg-C3N4.Finally,thepreparedcompositephotocatalystswerecharacterizedbyultraviolet-visiblediffusereflectancespectroscopy,transmissionelectronmicroscopy,X-raydiffraction,andFouriertransforminfraredspectroscopy,andtheirphotocatalyticperformancewasinvestigated.PreliminaryresultsshowedthatZnO/g-C3N4andFe2O3/g-C3N4photocatalystsexhibitedexcellentphotocatalyticperformance,whichwasbetterthanpureg-C3N4forthedegradationoforganicpollutants.Furtherresearchwillbeimportantforoptimizingthepreparationofcompositephotocatalystsandtheirapplicationinenvironmentalremediation.Keywords:g-C3N4;photocatalyst;ZnO;Fe2O3;compositematerial