FABRICATION,MODIFICATION AND PHOTOCATALYTIC APPLICATIONS OF BISMUTH FERRITE NANOMATERIALS
Bismuth ferrite has been considered to be one of the ideal materials for semiconductor photocatalysts due to its narrow band gap,high chemical stability,and excellent visible-light response.However,as a photocatalyst,bismuth ferrite always has some disadvantages,such as the low carrier efficiency and high photo-generated electron-hole pair recombination rate,which limits its practical application.Based on the basic properties of bismuth ferrite and photocatalytic mechanism,this review firstly introduced the common fabrication methods of bismuth ferrite.Subsequently,three modification strategies,including element doping,heterojunction construction and morphology control were elaborated.Finally,the photocatalytic applications of bismuth ferrite were summarized.Meanwhile,the future research focus and direction of bismuth ferrite-based photocatalysts were prospected.
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