Preparation method of titanium dioxide-graphene composite nano paper

Abstract

The invention discloses a preparation method of a piece of titanium dioxide-graphene composite nano paper. The titanium dioxide-graphene composite nano paper mainly comprises a titanium dioxide nano zone and graphene, or a titanium dioxide nano zone, graphene and additives. The preparation method of the titanium dioxide-graphene composite nano paper mainly comprises the following procedures of synthesizing, compounding, dispersing, suction filtering, drying and the like. Compared with the ordinary nano granules or nano films, the titanium dioxide-graphene composite nano paper is more excellent in performance, simple in manufacturing method and lower in cost. Due to the introduction of the graphene, the nano paper has good conductivity, can effectively solve the problem that electrons are compounded with cavities when being excited, and improves the photocatalysis efficiency. The composite nano paper has important application prospects in high-tech fields of photocatalysis, sensors, electronic devices and the like. The composite nano paper has the advantages of reasonable design, simple process, non-toxicity, harmlessness, low price and the like, is easy to operate and can be directly cut.

Description

technical field [0001] The invention relates to a preparation method of titanium dioxide-graphene composite nano paper, which belongs to the field of preparation of composite nano materials. Background technique [0002] Titanium dioxide (TiO 2 ) is an important inorganic semiconductor functional material, due to its moisture sensitivity, gas sensitivity, chemical inertness, photoelectric conversion, dielectric effect, good biocompatibility, strong oxidation ability, chemical corrosion and photocorrosion resistance, superior Photocatalytic performance and other characteristics, and non-toxic, harmless, easy to prepare, low price, in energy conversion, sensors, dielectric materials, self-cleaning materials, solar cells, coatings, cosmetics, catalysts, fillers, photocatalytic degradation of pollutants And other high-tech fields have important application prospects, and have become one of the hot research topics at home and abroad. [0003] At present, titanium dioxide in pra...

AI Technical Summary

Problems solved by technology

When TiO 2 After the nanobelt is excited by light, the electrons separated from the holes will be excited from the valence band to the conduction band. However, due to the TiO 2 Due to the perfect surface structure and single phase structure of the nanobelt, most of the electrons will return to the valence band to recombine with holes, resulting in a decrease in photocatalytic activity.

Its application in photocatalysis is limited