▎ 摘　　要

NOVELTY - A diatomaceous earth coating contains 5-15 %mass titanium dioxide, 3-10 %mass nano-titanium dioxide, 2-8 %mass silica, 1-3 %mass nano-calcium carbonate, 2-5 %mass nano-silica, 6-18 %mass nano-tungsten trioxide, 2-8 %mass sepiolite material, 5-7 %mass chitin, 3-6 %mass oxidized graphene, 0.5-1.3 %mass mica, 1-7 %mass nano-activated carbon, 0.1-0.5 %mass phthalocyanine compound and balance amount of diatomaceous earth. USE - Diatomaceous earth coating (claimed). ADVANTAGE - The diatomaceous earth coating can quickly decompose organic compounds, purify air, improve indoor air quality and increase indoor concentration of negative ions.