Load preparation method of nano metal oxide on basis of anodic oxidation approach

Abstract

The invention discloses a load preparation method of a nano metal oxide on the basis of an anodic oxidation approach. The method comprises the steps that 1, a cathode and an anode are relatively fixedand immersed in an electrolyte, wherein the anode is made of a metal simple substance material of the nano metal oxide, and the cathode is made of a carrier metal material; 2, the electrolyte is stirred at a constant speed, wherein the rotation speed is not lower than 500 rpm; 3, a power supply is electrically connected, and the output voltage is controlled within a range from 10 v to 50 v, an anodic oxidation reaction takes place on the metal simple substance material to generate metal oxide nanotubes / nanoparticles on the surface of the metal simple substance material, the metal oxide nanotubes / nanoparticles on the surface of the anode are gradually dissolved and fall off under the action of stirring and then enter the electrolyte, and under the action of an electric field force, dissolved and detached nano fragments move towards the cathode and adhere to the surface of the cathode material to form a metal oxide nano film. The preparation method of the film has the advantages of mildconditions, simple equipment, convenient operation and low cost; the prepared film has a good loading effect, and the metal oxide is unlikely to fall off.

Description

technical field [0001] The invention belongs to the field of nanometer materials, and in particular relates to a preparation method for loading nanometer metal oxides based on an anodic oxidation method. Background technique [0002] Nano-titanium dioxide can convert light energy into chemical energy and effectively degrade organic pollutants. At the same time, it is considered to have great development prospects and application potential due to its high catalytic activity, good stability, low price, and harmless to the human body. Environmentally friendly photocatalytic materials. [0003] Nano-titanium dioxide particles are widely used in practical applications, but they are very easy to agglomerate during preparation and use, so that they cannot effectively exert their catalytic performance. At the same time, after the degradation treatment, the nanoparticles are dispersed in the solution, and it is difficult to settle freely and separate from the solution. This makes th...

AI Technical Summary

Problems solved by technology

During the gel aging process, a large amount of water and organic solvents will volatilize, which will not only cause environmental pollution, but also easily crack the titanium dioxide film

[0009] In summary, the loading effect of powder sintering method and liquid phase deposition method is poor, the preparation conditions of chemical vapor deposition method and sputtering method are harsh and costly, and the sol-gel method is easy to cause environmental pollution and is easy to cause environmental pollution due to the gel process. Cracks due to uneven heat shrinkage

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