Effect on Catalytic Ability of Solid Super Acid SO42-/ZrO2-TiO2-SiO2-Al2O3 Modified by Y, La and Chitosan

Xuan Xing; Gu Li Bahati; Hui Ying Chen; Hua Li

doi:10.4028/www.scientific.net/MSF.809-810.916

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Effect on Catalytic Ability of Solid Super Acid SO₄^2-/ZrO₂-TiO₂-SiO₂-Al₂O₃Modified by Y, La and Chitosan
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HomeMaterials Science ForumMaterials Science Forum Vols. 809-810Effect on Catalytic Ability of Solid Super Acid...

Effect on Catalytic Ability of Solid Super Acid SO₄^2-/ZrO₂-TiO₂-SiO₂-Al₂O₃Modified by Y, La and Chitosan

Abstract:

In the present study, catalyst of SO₄^2-/ZrO₂-TiO₂-SiO₂-Al₂O₃ has been prepared by sol-gel method and doped by Y, La and Chitosan, respectively. The catalytic ability of modified catalysts for the synthesis of hexyl butyrate has been tested. It has been shown that the catalytic ability has been improved obviously after modification. Under the best experimental conditions, with Y doping 1%, La doped 1.5% and Chitosan doped 4%, the catalytic ability has been improved from 76.7% to 90.7%, 92.1% and 93.9%. Characterized by XRD, SEM and IR, it has been found that the grain sizes of catalysts are smaller which due to higher specific surface andimprove the catalytic ability. With abundant amino groups at the surface, the Chitosan doping improves the capacity of SO₄^2- for catalysts.

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2014 China Functional Materials Technology and Industry Forum

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Materials Science Forum (Volumes 809-810)

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916-923

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https://doi.org/10.4028/www.scientific.net/MSF.809-810.916

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December 2014

Authors:

Xuan Xing, Gu Li Bahati*, Hui Ying Chen, Hua Li

Keywords:

Chitosan, Modification, Rare Earth Elements, Solid Superacid

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