A series of mesoporous Ti-SiO2 support materials was synthesized via the aerosol-assisted solgel process following the procedure reported by Smeets et al. and varying Ti loading. First, titanium butoxide (TiBuO, Fluka, 99%) was added dropwise into aqueous tetrapropylammonium hydroxide (TPAOH, Merck, 40% w/w) and stirred for 10 min, followed by addition of distilled water. After stirring for another 10 min, tetraethyl orthosilicate (TEOS, Sigma, 98%) was added into the solution and thoroughly mixed overnight to hydrolyze the precursors. The precursor solution was subsequently aged at 70 C for 15 h. Pluronic F127 surfactant was then added and vigorously stirred at room temperature until complete dissolution. The molar ratio of the components was 1 SiO2: X TiO2: Y TPAOH: 0.005 F127: 21 H2O with different Ti loadings (mol Ti / (mol Ti + mol Si) x 100% = 0, 4, 8, 12 and 16%) and a constant TPAOH to (Si + Ti) ratio of 0.15. The clear yellowish solution was sprayed by a Büchi Mini Spray Dryer B-290 under 4-bar air pressure, and the aerosol was carried by air to pass through a drying chamber heated at 150 C. The dried powder was further aged at 70 C overnight before calcination in air at 550 C for 5 h with a heating rate of 5 C/min. The obtained supports are denoted as x%Ti-SiO2, where x means mol% Ti loading.