Synthesis、Structure and Catalytic Activity of TiO2/ La2Zr2O7 Nanocomposites
TiO2/La2Zr2O7 composites were fabricated by sol-gel method. The composites were characterized by X-ray powder diffraction (XRD), Raman spectrum, scanning electron microscopy (SEM), energy dispersive X-ray spectrometer (EDS) and Brunauer-Emmett-Teller (BET) nitrogen adsorption. The results showed that TiO2 was uniformly coated on the surface of La2Zr2O7 powders. The BET surface area of TiO2/La2Zr2O7 composites was 26.78 m2/g, which was larger than that of La2Zr2O7. Also, the photodegradation of methyl orange was used to evaluate its photocatalytic property. It was found that TiO2/La2Zr2O7 composites showed good photocatalytic activity and the decomposition of methyl orange had basically completed within 30 min.
Zhong Cao, Xueqiang Cao, Lixian Sun, Yinghe He
Y. P. Tong et al., "Synthesis、Structure and Catalytic Activity of TiO2/ La2Zr2O7 Nanocomposites", Advanced Materials Research, Vols. 239-242, pp. 2878-2881, 2011