摘要
采用溶剂热法制备多级结构钛酸铋(Bi_(4)Ti_(3)O_(12))纳米材料,该材料由纳米片堆叠成层状,再自组装成5μm微米球状结构。表征该Bi_(4)Ti_(3)O_(12)纳米结构的光电性能,并与纳米片空心球结构Bi_(4)Ti_(3)O_(12)的光电性能进行对比。结果表明,该多级结构Bi_(4)Ti_(3)O_(12)的光电性能较纳米片空心球结构Bi_(4)Ti_(3)O_(12)提高了10倍。紫外-可见光吸收谱表明多级结构Bi_(4)Ti_(3)O_(12)的禁带宽度小于纳米片空心球结构Bi_(4)Ti_(3)O_(12)。多级结构Bi_(4)Ti_(3)O_(12)材料中纳米片暴露的晶面是影响材料光电性能的重要因素。
Hierarchical nano-Bi_(4)Ti_(3)O_(12) constructed by nanoplates stacking in stratiform were prepared by a solvothermal process.The 3D superstructures exhibit a mono-dispersed sphere morphology with a diameter about 5μm.Photoelectric performance of hierarchical nano-Bi_(4)Ti_(3)O_(12) was characterized and compared with Bi_(4)Ti_(3)O_(12) hollow microspheres.Results showed that photoelectric performance increased by 10 times.UV/Vis showed that band gap of hierarchical nano-Bi_(4)Ti_(3)O_(12) was narrower than that of hollow microspheres Bi_(4)Ti_(3)O_(12).Exposed crystal faces are key factors affecting photoelectric performance of hierarchical nano-Bi_(4)Ti_(3)O_(12).
作者
陈光辉
Chen Guanghui(Hunan University of Science and Engineering,Yongzhou 425000,Hunan,China)
出处
《工业催化》
CAS
2022年第4期56-60,共5页
Industrial Catalysis
基金
永州市科技创新指导性项目(永科发[2017]41号)
湖南科技学院项目(18XKY069)。