▎ 摘　　要

NOVELTY - Preparing flower-type titanium dioxide-based composite photocatalytic antibacterial aqueous interior wall coating comprises (1) configuring the precursor solution of titanium dioxide-based composite photocatalytic particles, (a) taking the titanium dioxide source and dissolving in ultrapure water, controlling the precipitation of titanium-ammonia complex by adding ammonia solution, and precipitating by suction filtration after separation, cleaning the precipitate by ultrapure water and absolute ethanol, and drying in a constant temperature drying box to obtain titanium-ammonia complex precipitate, (b) adding 6 mg/ml solution of photocatalytic nanoparticles attached to the titanium ammonia complex precipitate, configuring the precursor solution to 2-3 mol/l with ammonia and ultrapure water, and sonicating, dispersing within 30 minutes to obtain a precursor solution of titanium dioxide-based composite photocatalytic particles. USE - The method is useful for preparing flower-type titanium dioxide-based composite photocatalytic antibacterial aqueous interior wall coating. ADVANTAGE - The method: improves the antibacterial effect of the prepared photocatalytic-based interior wall coating. DETAILED DESCRIPTION - Preparing flower-type titanium dioxide-based composite photocatalytic antibacterial aqueous interior wall coating comprises (1) configuring the precursor solution of titanium dioxide-based composite photocatalytic particles, (a) taking the titanium dioxide source and dissolving in ultrapure water, controlling the precipitation of titanium-ammonia complex by adding ammonia solution, and precipitating by suction filtration after separation, cleaning the precipitate by ultrapure water and absolute ethanol, and drying in a constant temperature drying box to obtain titanium-ammonia complex precipitate, (b) adding 6 mg/ml solution of photocatalytic nanoparticles attached to the titanium ammonia complex precipitate, configuring the precursor solution to 2-3 mol/l with ammonia and ultrapure water, and sonicating, dispersing within 30 minutes to obtain a precursor solution of titanium dioxide-based composite photocatalytic particles, (2) mechanically stirring composite precursor solution and the components of the aqueous interior wall coating and mixing in the reactor to obtain a mixed coating, and (3) performing microwave reaction synthesis of the mixed coating to obtain a flower-type titanium dioxide-based composite photocatalytic antibacterial aqueous interior wall coating.