PERYLENE IMIDE AND COMPOSITE PHOTOCATALYTIC MATERIAL THEREOF, PREPARATION METHOD THEREFOR AND APPLICATION THEREOF IN REMOVING ORGANIC POLLUTANTS FROM WATER

摘要

Perylene imide, a composite photocatalytic material thereof, a preparation method therefor and an application thereof in removing organic pollutants from water, wherein melamine is calcined to obtain melem; thereafter, the melem, perylene tetracarboxylic dianhydride, and a solvent are mixed to obtain a mixture, and then the mixture is subjected to a solvothermal reaction in an inert atmosphere to obtain perylene imide; and the perylene imide is dispersed in an aqueous solution containing a bismuth source and a tungsten source, and is subjected to a hydrothermal reaction to obtain a perylene imide/bismuth tungstate composite photocatalytic material. By means of constructing the organic-inorganic composite photocatalytic material, on the one hand, the introduction of the organic photocatalytic material that responds to visible light may enable the composite photocatalytic material to have a wider spectral response range; and on the other hand, the introduction of an inorganic semiconductor catalyst enables the composite material to produce more oxidizing active free radicals, thereby enhancing the photocatalytic degradation performance of the composite material on organic pollutants. Therefore, the constructed organic-inorganic composite photocatalytic material has an excellent catalytic performance.