▎ 摘　　要

NOVELTY - Preparing rod-shaped titanium dioxide-based composite photocatalytic antibacterial aqueous interior wall paint comprises e.g. (i) taking the titanium dioxide source, dissolving it in ultrapure water, controlling the precipitation of titanium-ammonia complex, separating the precipitate by, washing the precipitate fully with ultrapure water and absolute ethanol, and drying to obtain the titanium-ammonia complex precipitate, adding 6 mg/ml solution of photocatalytic nano particles to attached to the titanium ammonia complex precipitate, preparing 3-5 mol/liter precursor solution and carrying out ultrasonic vibration for 30 minutes to disperse fully to obtain a precursor solution of titanium dioxide-based composite photocatalytic particles; (ii) stirring composite precursor solution and components of the aqueous interior wall paint sequentially and mechanically and mixing in the reaction kettle to obtain a mixed paint; and (iii) carrying out microwave reaction synthesis of the mixed paint. USE - The method is useful for preparing rod-shaped titanium dioxide-based composite photocatalytic antibacterial aqueous interior wall paint. ADVANTAGE - The method: provides better stability, better dispersibility and less agglomeration photocatalytic particles, larger specific surface area, more active sites, better antibacterial and inactivation; and utilizes titanium dioxide which is non-toxic, economical, suitable forbidden band width and large specific surface area. DETAILED DESCRIPTION - Preparing rod-shaped titanium dioxide-based composite photocatalytic antibacterial aqueous interior wall paint comprises (i) taking the titanium dioxide source, dissolving it in ultrapure water, controlling the precipitation of titanium-ammonia complex by adding aqueous ammonia solution, separating the precipitate by suction filtration, washing the precipitate fully with ultrapure water and absolute ethanol, and drying in a constant temperature drying box to obtain the titanium-ammonia complex precipitate, adding 6 mg/ml solution of photocatalytic nano particles to attached to the titanium ammonia complex precipitate, preparing 3-5 mol/liter precursor solution through ammonia and ultrapure water and carrying out ultrasonic vibration for 30 minutes to disperse fully to obtain a precursor solution of titanium dioxide-based composite photocatalytic particles; (ii) stirring the composite precursor solution and the components of the aqueous interior wall paint sequentially and mechanically and mixing in the reaction kettle to obtain a mixed paint; and (iii) carrying out microwave reaction synthesis of the mixed paint.