Composite nanometer titanium dioxide photocatalysis material and preparation method thereof

Abstract

The invention discloses a composite nanometer titanium dioxide photocatalysis material and a preparation method thereof. The method includes the steps: titanium dioxide collosol, silicon dioxide colloThe invention discloses a composite nanometer titanium dioxide photocatalysis material and a preparation method thereof. The method includes the steps: titanium dioxide collosol, silicon dioxide collove power and the hardness of a coating.ive power and the hardness of a coating.sol and propylene glycol monomethyl ether, of which the mass ratio is 1 to 4 to 10, are uniformly mixed to form composite collosol; porous ceramics are soaked in the composite collosol for 30 minutes;sol and propylene glycol monomethyl ether, of which the mass ratio is 1 to 4 to 10, are uniformly mixed to form composite collosol; porous ceramics are soaked in the composite collosol for 30 minutes; and the porous ceramics are taken out to be heated for 30 minutes at the temperature of 300 DEG C so as to obtain photocatalysis ceramics loaded titanium dioxide materials. Compared with the prior arand the porous ceramics are taken out to be heated for 30 minutes at the temperature of 300 DEG C so as to obtain photocatalysis ceramics loaded titanium dioxide materials. Compared with the prior art, the invention has the technical scheme that modified silicon dioxide collosol is mixed in the titanium dioxide collosol, and the existing Ti-O-Ti bond is replaced by a Ti-O-Si bond, thereby reducint, the invention has the technical scheme that modified silicon dioxide collosol is mixed in the titanium dioxide collosol, and the existing Ti-O-Ti bond is replaced by a Ti-O-Si bond, thereby reducing the titanium oxidation-reduction potential, enabling titanium dioxide light absorption wavelength to generate redshift, and improving the visible light utility ratio of titanium as well as the adhesg the titanium oxidation-reduction potential, enabling titanium dioxide light absorption wavelength to generate redshift, and improving the visible light utility ratio of titanium as well as the adhesi

Description

A kind of composite nano-titanium dioxide photocatalytic material and its preparation method Technical field: The invention relates to a photocatalyst material, in particular to a composite nano-titanium dioxide photocatalyst material which can be used for indoor air pollution control, and simultaneously the invention also relates to a method for preparing the material. Background technique: In recent years, with the improvement of people's living standards, a large number of new decorative materials and luxurious and fashionable modern furniture and daily necessities have continuously entered the room, and the resulting indoor environmental pollution has become increasingly serious. The main indoor pollutants formaldehyde, benzene, toluene and other volatile organic compounds (VOC) seriously exceed the standard and the diseases caused by people are attracting great attention from all over the world. Regarding the control of indoor pollutants, there are many methods at ho...

AI Technical Summary

Problems solved by technology

The disadvantage is that ultraviolet light is required for excitation, the utilization rate of visible light is low, and weak indoor light will affect the catalytic effect