TiO2 photocatalyst with mesoporous structure, as well as preparation method and applications of photocatalyst

The invention discloses a TiO2 photocatalyst with mesoporous structure, as well as a preparation method and applications of the photocatalyst. The TiO2 photocatalyst with the mesoporous structure can be prepared by adopting a water phase volatilization and induction self-assembling method, the aperture of the prepared TiO2 photocatalyst ranges from 6.6nm to 10.7nm, and the specific surface area of the prepared TiO2 photocatalyst ranges from 72.2m /g to 40.4m /g. The preparation method of the photocatalyst is simple, and mild and clean in conditions, as well as basically free from environmental pollution in the preparation process. The catalyst can be widely applied in the fields of hydrogen production by using photocatalysis, photooxidization of NO, a solar cell, a lithium ion battery, antibacterial and photocatalytic pollutant treatment, and the like.