LI Jin-lian1, LI Jin-huan2
(1 Department of Chemical Engineer, Northeast Petroleum University Daqing, Heilongjiang 163318, 2 Shengli Engineering Design and Consultation Company of Shengli Oil Field; SINOPEC; Dongying 257026)
Abstract :The mesoporous TiO2 was prepared from a poly(ethylene glycol)- poly(propylene glycol)-based triblock copolymer (P123), titanium isopropoxide and H3PW12O40 by using sol–gel and solvothermal method. The structure of synthesized composites wascharacterizaed by UV-vis diffuse reflectance absorption spectra (UV-vis/DRS), X-ray diffraction (XRD), nitrogen adsorption and transmission electron microscopy (TEM). The rhodamine B photodecomposition was used as model dye to evaluate the adsorption abilities of the composites. The results show the prepared compositions exhibited anatase and brookite phase structure, larger BET areas, and mesoporosity with uniform pore size distribution. The photocatalytic experiment shows after being irradiated under the UV-light, the degradation rate of rhodamine B reached up to almost 100%。
Key words: Polyoxometalat; Photocatalytic; Mesoporous TiO2; Solvothermal method;
E-mail: lijinlian33@163.com
Journal of Molecular Catalysis, Vol. 24, Issue 5, 2010, 469~473
