کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
49841 | 46769 | 2012 | 5 صفحه PDF | دانلود رایگان |
Benzaldehyde is an important chemical and has tremendous application in cosmetics, perfumery, food, dyestuff, agrochemical and pharmaceutical industries. In the present investigation, threefold increase in oxidative property of mesoporous Ti-SBA-15 was observed by treatment with chlorosulfonic acid. Physio-chemical properties of this catalyst were analyzed by BET surface area, X-ray diffraction (XRD), energy dispersive X-ray spectroscopy (EDX), FTIR, and NH3-temperature programmed desorption (TPD) techniques. The super acidic nature of the catalyst is shown by NH3-TPD profile. Enhanced acidity of the catalyst increases benzyl alcohol conversion from 20 to 62% without affecting benzaldehyde selectivity (95%).
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► The catalytic activity of Ti-SBA-15 and sulfated Ti-SBA-15 were compared.
► Threefold increase in oxidative property of Ti-SBA-15 was observed by sulfation.
► Catalyst is reused for four times with marginal decrease in catalytic activity.
Journal: Catalysis Communications - Volume 29, 5 December 2012, Pages 87–91