Journal
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
Volume 553, Issue -, Pages 593-600Publisher
ELSEVIER
DOI: 10.1016/j.colsurfa.2018.05.085
Keywords
MIL-101(Cr); Thiol-functionalized ionic liquids; Esterification; Surface
Categories
Funding
- National Natural Science Foundation of China [21003074, 21476110]
- Key Project for University Natural Science Foundation of Jiangsu Province [14KJA530001]
- Natural Science Foundation of Jiangsu Province [BK20131407, BK20151531]
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A novel functionalized MOF heterogeneous catalyst (MIL-101(Cr) @MBIAILs), 2-Mercaptobenzimidazole ILs with electron-rich -SH groups immobilized onto the surface of the well-defined MIL-101(Cr) frameworks, was constructed and fabricated by the S-Cr coordination bond on the basis of the facile post-synthetic modification strategy. The heterogeneous catalyst was measured by XRD, FTIR, SEM, TEM, TGA, EA and N-2 adsorption-desorption, and the catalytic behavior of the catalyst was assessed by the esterification about oleic acid and methanol as a model reaction. The results showed that MBIAILs have been successfully immobilized onto the surface of MIL-101(Cr) frameworks by S-Cr coordinate bonds. More importantly, the conversion of oleic acid just decreased from 91.0% to 82.1% when the catalyst had been reused six times. This exhibited the prepared catalyst had superior catalytic behavior and excellent reusability.
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