Formation and Characterization of High Surface Area Thermally Stabilized Titania/Silica Composite Materials via Hydrolysis of Titanium(IV) tetra-Isopropoxide in Sols of Spherical Silica Particles
A DIRECT SYNTHETIC ROUTE LEADING TO TITANIA PARTICLES DISPERSED ON NONPOROUS SPHERICAL SILICA PARTICLES HAS BEEN INVESTIGATED; 5, 10, AND 20% (W/W) TITANIA/SILICA SOLS MIXTURES WERE ACHIEVED VIA HYDROLYZATION OF TITANIUM TETRA-ISOPROPXIDE SOLUTION IN THE MOTHER LIQUOR OF A FRESHLY PREPARED SOL OF SPHERICAL SILICA PARTICLES (STOBER ¨ PARTICLES). TITANIA/SILICA MATERIALS WERE PRODUCED BY SUBSEQUENT DRYING AND CALCINATION OF THE ... إقراء المزيد