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ZnSnO3 visible-light-responsive photocatalyst was synthesized through template route by the way of plant mediation,then to evaluate the photocatalytic activities of the synthesized materials according the decolorization of methylene blue dye wastewater under visible light irradiation.The results indicated that the ZnSnO3 synthesized by the stripping liquid of plant leaves exhibited enhanced visible-light-driven photocatalytic activity for the degradation of methylene blue dye wastewater than that of ZnSnO3 synthesized by the pure deionized water.