Antibacterial diatomite-based coating as well as preparation method and application thereof

The invention relates to an antibacterial diatomite-based coating as well as a preparation method and application thereof, and particularly relates to an antibacterial coating for wallpaper, belonging to the field of coatings. According to the antibacterial diatomite-based coating, an antibacterial agent is loaded on a special porous structure of diatomite, so that the diatomite is endowed with antibacterial performance, and then the antibacterial agent-loaded diatomite, a dispersing agent, a defoaming agent, a water retaining agent, water and an adhesive are mixed and stirred to prepare the diatomite coating. According to the method, the antibacterial agent with excellent performance is used for replacing existing widely-used nanometer titanium dioxide; during implementation of the method, the antibacterial agent is good in bactericidal activity, broad-spectrum, long-acting, small in usage amount and low in price. The method is convenient and feasible, simple to operate without using special instruments and equipment, and easily produced industrially.