The invention discloses an interior wall
coating having multiple functions of temperature and
humidity regulation and
photocatalysis and a preparation method thereof and belongs to the technical field of photocatalytic coatings and
building energy saving. The
coating is prepared from a photocatalytic packing, a temperature and
humidity regulating packing, a film-forming material, a dispersing agent, a stabilizing agent, a
wetting agent, a
mildew preventive, a defoaming agent, a flatting agent, a thickener, a drier, a
drying assistant, water and the like, wherein the photocatalytic packing is Eu-Ce / TiO2, and the temperature and
humidity regulating packing is a SiO2 based hexadecanol-
palmitic acid-
lauric acid microcapsule temperature and humidity regulation material. The preparation method of the
coating comprises the steps of (1) preparation of the photocatalytic packing, (2) preparation of the temperature and humidity regulating packing and (3) preparation of the interior wall coating having the multiple functions of temperature and humidity regulation and
photocatalysis. The coating can conduct
photocatalytic degradation on
formaldehyde gas and regulate indoor temperature and humidity in the presence of a visible
light source, effectively improves the indoor environment comfort and the quality of
indoor air, reduces
building energy consumption and conforms to the development trend of national green
ecological building materials.