Preparation method of visible-light activated cuprous oxide/titanium dioxide nano-composite photocatalyst and applications thereof

Abstract

The invention discloses a preparation method of a visible-light activated cuprous oxide/titanium dioxide nano-composite photocatalyst and applications thereof, belonging to the technical field of environmental pollution control. The preparation of the catalyst comprises the following steps of: 1) carrying out electrochemical oxidation reaction under the action of hydrofluoric acid with the concentration of 0.2 percent by weight for preparing a titanium dioxide nanotube electrode, wherein the tube diameter of a nanotube is about 80nm, and the tube length is 550nm; and 2) adopting a photoreduction chemical method to prepare the cuprous oxide/titanium dioxide nano-composite photocatalyst. The prepared composite photocatalyst has the advantages of simple synthesis, stable performance, the synthesis process belonging to the field of green chemistry and the like. The composition of cuprous oxide can not only reduce the defect of high composite probability of photoproduced electron-hole pairs, but also expand the light response range of the titanium dioxide nanotube electrode and further improve the photocatalytic degradation efficiency thereof to organic pollutants in the visible light range, thereby having very high practical value and application prospect.

Description

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AI Technical Summary

Benefits of technology

This patented technology allows researchers or manufacturers to easily prepare materials that have high purity without requiring costly facilities. These compositions also exhibit excellent properties such as enhanced photoelectric conversion ability due to their small size and unique structure. Overall, this method simplifies the way scientists study these materials by providing technical means for creating more efficient and effective devices with superior characteristics over existing technologies like chemical reactions.

Problems solved by technology

This patented technical solution describes different ways to enhance the optical characteristics of titanium dioxides called tin oxygen double heteroferrite or tungsten silicate. These materials exhibiting excellent absorbing capabilities include Ce02-, Er03++, Fe203-Thirionoxynthodim Acta Group IIIA metals such as Cadmobilte Acceptor Grille Metal(CCAG), Lanthum Quantum Dopammatory Anode Complex (LDAC). By combining these two types of material together, they could achieve superior optoelectronics effects without compromising their original functions.

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