A preparation process for monoclinic titanium dioxide

Abstract

A method for preparing titanium dioxide that includes the steps of providing at least one titanium precursor: providing one or more potassium precursors: mixing the at least one titanium precursor with the one or more potassium precursors to form a mixture: wherein the mixture has a potassium to titanium (K/Ti) molar ratio of 2.0/4.0<K/Ti<2.0/2.4; sintering the mixture at a temperature in the range of 750° C. to 900° C. for a predetermined time to form a powder: soaking the heated powder in an acidic solution: collecting and drying the acid-soaked powder: and treating the collected powder thermally at a temperature in the range of 300° C. to 500° C. for a predetermined time to form the TiO2. The titanium oxide formed has a monoclinic crystal structure. TiO2(B), as its major crystal phase with a mass percentage that is >50% of the overall mas of the TiO2.

Dependencies are inferred from the claim text.