▎ 摘　　要

NOVELTY - Preparation of anatase titanium dioxide nanosheet involves absorbing special biomimetic reagent polyethyleneimine to graphene oxide in mild environment under action of electrostatic attraction such that the polyethyleneimine absorbed by graphene oxide serves as a composite soft template, carrying out layer by layer self-assembly of the composite soft template and the aqueous solution of the organic titanium precursor in the mild environment and obtaining precursor having multi-stage titanium dioxide nanosheet structure. USE - Preparation of anatase titanium dioxide nanosheet (claimed). ADVANTAGE - The method efficiently and economically provides anatase titanium dioxide nanosheet. DETAILED DESCRIPTION - Preparation of anatase titanium dioxide nanosheet involves absorbing special biomimetic reagent polyethyleneimine to graphene oxide in mild environment under action of electrostatic attraction such that the polyethyleneimine absorbed by graphene oxide serves as a composite soft template, carrying out layer by layer self-assembly of the composite soft template and the aqueous solution of the organic titanium precursor in the mild environment such that the organic has hydrolysis reaction under the action of the polyethyleneimine, and obtaining precursor having multi-stage titanium dioxide nanosheet structure and then performing thermal treatment of precursor in air atmosphere.