METHOD OF SURFACE MODIFYING TITANIA USING METAL AND COMPOSITIONS THEREFROM

摘要

A method for in-situ formation of metal surface modified titania comprises the steps of burning a titanium chloride comprising compound in the presence of oxygen and hydrogen in a reactor to form plurality of fine titania particles comprising titanium dioxide and titanium suboxide. A temperature during the burning step is generally from 700 to 1100 0C. Metal is deposited on a surface of the titania particles while in the reactor at a temperature below the temperature for the burning step, wherein the metal only partially covers the surface of said titania particles. The metal on the titania surface is generally in the form of randomly located nanoparticles.