Synthesis and characterization of TiO2 coating Al2O3 support

LI Shu-hua, WU Shao-tao, MOU Yi-meng, ZHOU Qiu-man, LIANG Hong

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Journal of Guangzhou University(Natural Science Edition) ›› 2015, Vol. 14 ›› Issue (4) : 32-36.

Synthesis and characterization of TiO2 coating Al2O3 support

  • LI Shu-hua, WU Shao-tao, MOU Yi-meng, ZHOU Qiu-man, LIANG Hong
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Abstract

A series of Al2O3-TiO2 composite supporters with different mole ratio of Ti/Al were prepared by sol-gel method. And the samples were characterized by TG/DTG, XRD, FT-IR, SEM-EDS and BET in order to select the optimum synthetic conditions. The experimental results indicated that the uniformity and agglomeration of TiO2 could be changed by the concentration Butyl Titanate when the Ti/Al=0.02, 0.04, Al2O3-TiO2 had uniform coating layer. With increasing the concentrations of Butyl Titanate, the surface area and pore volume of Al2O3-TiO2 decreased due to the additon of TiO2 with low surface area. A stable transparent sol was synthesized when pH value was 1 to 2, and the specific surface area of the supporter was about 199 m2·g-1.

Key words

sol-gel method / titania / coating / alumina support

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LI Shu-hua, WU Shao-tao, MOU Yi-meng, ZHOU Qiu-man, LIANG Hong. Synthesis and characterization of TiO2 coating Al2O3 support. Journal of Guangzhou University(Natural Science Edition). 2015, 14(4): 32-36

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