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In recent years,the p-block semiconductors have received more and more interest as a new family of visible-light photocatalyts because of their physicochemical properties.As a group of Ⅴ-Ⅵ-Ⅶ ternary compound semiconductors,the bismuth oxide halides belong to this family [1].Because of the strong relationship between the physicochemical properties and the microstructure,BiOCl semiconductors of different shapes and morphologies have been synthesized and researched for photocatalysis.