Highly photoreactive TiO2 hollow microspheres with super thermal stability for acetone oxidation

Anatase TiO2 hollow microspheres (TiO2-HMSs) were fabricated by hydrothermal treatment of the mixed solution of Ti(SO4)2-NH4F-H2O2. The prepared TiO2-HMSs show excellent photoreactivity in oxidation of acetone and high thermal stability with anatase-to-rutile phase transformation temperature of 1100 °C.