Patent ID: 9349541
Filing Date: 2016-05-24
CPC Classification: C01G,C01P,H01G,H01L,Y02E

Claim Text:
1. A method for producing a mesoporous titanium dioxide thin film, comprising the steps of: (a) dispersing a polymer-grafted hybrid alumina composite into a solvent to provide a support solution; (b) introducing a titanium precursor into an acid solution for forming a sol solution, followed by agitation, to form the sol solution, and mixing the sol solution with the support solution to provide a sol-like mixed solution; (c) drop casting the mixed solution, followed by sintering at high temperature to form an alumina/titanium dioxide composite thin film; and (d) removing alumina selectively from the composite thin film by dipping the composite thin film into an acid or base solution for removing alumina, which contains 5-30 parts by weight of an acid or a base and 5-100 parts by weight of solvent based on 1 part by weight of the composite thin film of alumina with titanium dioxide.