Preparation And Characterization Of Organic Dyes And Their Photocatalytic Nano-sulfide Supported Phosphotungstic Acid Degradation

With development of industrial, water pollution is the biggest problem in today’s field of environmental protection, photocatalytic oxidation technology as a means of dealing with pollution increasing attention has been paid to study an efficient catalyst imminent. Photocatalytic Nano sulfide which occupies an important position in the field. In recent years, studies of zinc sulfide, cadmium sulfide, and two composite prepared nano-materials, more and more of these nano-sulphide potential applications exist in energy, environmental protection and other areas, they are not only with its own photocatalysis can also serve as a carrier of some soluble, difficult recovery of high catalytic properties of the catalyst.In this paper, heterogeneous reflow technology made the opening of the hollow zinc sulfide, cadmium sulfide, zinc sulfide, cadmium sulfide composite nanospheres were prepared by impregnation method supported phosphotungstic acid zinc sulfide, cadmium sulfide supported phosphotungstic acid, zinc sulfide, cadmium sulfide composite nano material supported phosphotungstic acid catalyst series, and its infrared, X-ray diffraction, transmission electron microscopy characterization. With these solid catalysts photocatalytic degradation of methylene blue, methyl orange experiment, the effect of the initial concentration of solution to be solved, a different source, amount of catalyst, pH and other conditions on the degradation effect. Experimental results show that zinc sulfide (cadmium) supported phosphotungstic acid photocatalytic degradation better.