In situ synthesis method for palladium-loaded titanium dioxide base nanometer heterojunction material

Abstract

The invention discloses an in situ synthesis method for a palladium-loaded titanium dioxide base nanometer heterojunction material. The in situ synthesis method comprises the following steps of the preparation of blue titanium dioxide and the in situ synthesis of the palladium-loaded titanium dioxide base nanometer heterojunction material. By use of the own reducibility of the blue titanium dioxide, palladium nano particles are directly grown on the surface of the blue titanium dioxide, a tightly combined heterojunction interface is formed so as to be favorable for electronic transmission, theeffective separation of photo-induced electrons and holes is realized, the absorption of visible light is enhanced, the palladium-loaded titanium dioxide base nanometer heterojunction material has the advantages of low cost, high photocatalytic activity and stability and the like, and can be widely applied to the energy and environment fields of photocatalytic solar fuel preparation, photocatalytic degradation of pollutants and the like.

Description

technical field [0001] The invention relates to an in-situ synthesis method of a palladium-supported titanium dioxide-based nano-heterojunction material. Background technique [0002] Energy crisis and environmental pollution are two major challenges facing human society, and photocatalytic technology provides an ideal way to solve energy and environmental problems. Photocatalytic solar fuels and photocatalytic degradation of pollutants have shown important applications in the fields of energy and the environment prospect. However, the realization of large-scale industrial application still needs to solve the bottleneck problems such as the lack of visible light-responsive catalytic materials and the low photocatalytic efficiency caused by the high recombination rate of photogenerated electrons and holes. [0003] Titanium dioxide is the best commercial application so far, and it is also a photocatalytic material with great development prospects in the future. It has strong...

AI Technical Summary

Problems solved by technology

However, the realization of large-scale industrial applications still needs to solve the bottleneck problems of the lack of visible light-responsive catalytic materials and the low photocatalytic efficiency caused by the high recombination rate of photogenerated electrons and holes.

[0003] Titanium dioxide is the best commercial application so far, and it is also a promising photocatalytic material in the future. It has strong photocatalytic redox ability, high stability, resistance to light and chemical corrosion, low cost, reusable, and harmless to the human body. It is non-toxic and environmentally friendly, but it also has the problems of high recombination rate of photogenerated electrons and holes and low utilization rate of visible light

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