摘要
通过固混法制备不同BiVO_4含量的BiVO_4/石墨相氮化碳(BiVO_4/g-C_3N_4)复合光催化材料。采用粉末X射线衍射仪、傅里叶变换红外光谱仪和扫描电子显微镜分别对BiVO_4/g-C_3N_4复合催化剂的晶相组成、官能团和微观形貌进行了表征;通过可见光照射下罗丹明B的降解来评价纳米复合材料的光催化活性。结果表明:在可见光照射3h后,30%(质量分数)BiVO_4/g-C_3N_4复合物的降解率最高,达到87%。BiVO_4/g-C_3N_4良好的光催化性能可以归因于在BiVO_4和g-C_3N_4的界面形成的异质结。
A series of BiVO4/g-C3N4 photocatalysts were successfully synthesized with different BiVO4 weight ratios.The phase composition,functional groups and morphological properties were investigated by X-ray diffraction,fourier transform infrared spectroscopy and scanning electron microscopy,respectively.The photocatalytic activity of photocatalysts was evaluated by the degradation of RhB under visible-light irradiation.The results indicated that 30%（mass fraction）of BiVO4/g-C3N4 showed the highest RhB degradation rate,reaching up to 87%.The high photocatalytic activity can be ascribed to the heterostructure formed at the interface of BiVO4 and g-C3N4.
作者
刘珊珊
左桂福
王笑敏
宗培肖
刘鑫鑫
沈毅
Liu Shanshan Zuo Guifu Wang Xiaomin Zong Peixiao Liu Xinxin Shen Yi(College of Materials Science and Engineering,North China University of Science and Technology, Hebei Provincial Key Laboratory of Inorganic Nonmetallic Materials,Tangshan 06300)
出处
《化工新型材料》
CAS
CSCD
北大核心
2017年第10期90-93,共4页
New Chemical Materials
基金
河北省普通高等学校青年拔尖人才项目(BJ2014030)
华北理工大学杰出青年基金项目(JP201504)
华北理工大学研究生创新项目(2017S22)
