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Bulletin of the Korean Chemical Society (BKCS)

ISSN 0253-2964(Print)
ISSN 1229-5949(Online)
Volume 25, Number 5
BKCSDE 25(5)
May 20, 2004

Title	Acidic Properties and Catalytic Activity of Titanium Sulfate Supported on TiO₂
Author	Jong Rack Sohn*, Si Hoon Lee, Park Won Cheon, Hea Won Kim
Keywords	Titanium sulfate supported on TiO2, Characterization, 2-Propanol dehydration, Cumene dealkylation, Acidic properties
Abstract	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.
Page	657 - 0
Full Text	PDF

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