Acidic Properties and Catalytic Activity of Titanium Sulfate Supported on TiO2

Bulletin of the Korean chemical society

Jong Rack Sohn¹  Hea Won Kim¹  Park Won Cheon¹  Si Hoon Lee¹ 

关键词: Titanium sulfate supported on TiO2;    Characterization;    2-Propanol dehydration;    Cumene dealkylation;    Acidic properties;   

DOI  :  

学科分类：化学（综合）

来源: Korean Chemical Society

【 摘 要 】

Titanium sulfate supported on TiO2 was prepared by impregnation of powdered TiO2 with an aqueous solution of titanium sulfate followed by calcining in air at high temperature. For Ti(SO4)2/TiO2 samples calcined at 300 oC, no diffraction lines of titanium sulfate are observed at Ti(SO4)2 loading up to 30 wt%, indicating good dispersion of Ti(SO4)2 on the surface of TiO2. The acidity of the catalysts increased in proportion to the titanium sulfate content up to 20 wt% of Ti(SO4)2. 20 wt% Ti(SO4)2/TiO2 calcined at 300 oC exhibited maximum catalytic activities for 2-propanol dehydration and cumene dealkylation. The catalytic activities for these reactions, were correlated with the acidity of catalysts measured by ammonia chemisorption method.

【 授权许可】

Unknown