Synthesis of titanium-doped ordered porous zirconium oxide with high-surface-area

Well ordered and titanium doped porous zirconium oxide with a high surface area was successfully synthesized by the surfactant templating method. X-ray powder diffraction, nitrogen adsorption, HRTEM, and UV-VIS spectroscopy methods were adopted for the characterization of the synthesized materials. Evidence showed that titanium had been incorporated into the inorganic wall of zirconium oxide during synthesis, and titanium was found not to affect the surface area at low temperatures but to substantially enhance the thermal stability of the materials. A specific surface area as high as 400 m²/g was obtained at a 10 mol% titanium doping level after calcining at 773 K. A significant red shift of the UV-VIS spectrum of the porous material by titanium doping was observed, which was attributed to the contribution of the Ti(IV) in the zirconia framework. (C) 2000 Elsevier Science B.V. All rights reserved.