调控形貌合成BiFeO3微晶及其光催化性能

In this paper, BiFeO3 microcrystals with different grain size and morphology have been synthesized by hydrothermal process with addition of different surfactants. Crystal structure, morphology and photocatalytic activity under visible light radiation have been investigated by X-ray diffraction, Scanning Electron Microscopy and photocatalytic test. The results of XRD and SEM show that with addition of different surfacants, BiFeO3 microcrystals present different grain size and morphology. The analysis of results from photocatalytic tests reveals that the bulk/interface defects also play a key role to influence the photocatalytic activities of a semiconductor photocatalyst, except for the grain size.