Plasmonic photocatalysis has recently made rapid progress in enhancing the photocatalytic efficiency under visible light irradiation, raising the hope to directly use the sunlight for environmental and energy applications such as wastewater treatment, water splitting and carbon dioxide reduction. A low-cost and efficient photocatalytic reactor for environmental treatment and green technology was presented. Ag/ZnO nano structure firmly growing on polycarbonate substrate (DVD-RW) are generally perpendicular to the substrate as the immobilized photocatalyst of the spinning disk reactor. The photocatalytic efficiency and durability of the Ag/ZnO nanostructure were tested and proven.