采用改进的Hummer法制备出薄层石墨烯材料,采用溶胶-凝胶法结合旋转涂膜技术以玻璃基底制备出石墨烯基LaNiO3复合薄膜。采用X射线衍射(XRD)仪,透射电镜(TEM),扫描电镜(SEM),拉曼光谱,X射线衍射光电子能谱(XPS)、紫外-可见(UV-Vis)吸收光谱和荧光光谱(PL)等测试手段对复合薄膜进行表征。结果表明,晶粒粒径约为20 nm的LaNiO3较均匀地生长在了石墨烯片上。光催化性能研究表明,LaNiO3/石墨烯复合薄膜的光催化活性显著优于LaNiO3薄膜,当石墨烯的含量约为4%时,复合薄膜4 h内对酸性红的降解效率比LaNiO3薄膜提高了1倍。 Thin layer graphene materials were prepared by a modified Hummer method. The graphene-based LaNiO3 composite films were prepared by sol-gel method and spin coating technique. The microstructure and mechanical properties were characterized by XRD, TEM, SEM, Raman, XPS, UV-Vis and PL ) And other testing methods to characterize the composite film. The results show that LaNiO3 with a grain size of about 20 nm grows more evenly on the graphene sheets. The photocatalytic properties of LaNiO3 / graphene composite films showed that the photocatalytic activity of LaNiO3 / LaNiO3 thin films was significantly better than that of LaNiO3 thin films. When the content of graphene was about 4%, the degradation efficiency of acid red was improved by 1 Times