期刊
RSC ADVANCES
卷 6, 期 43, 页码 37110-37117出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c6ra00579a
关键词
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资金
- National Natural Science Foundation of China [21476110, 21003074, 21176121, 21373112]
- Key Project for University Natural Science Foundation of Jiangsu Province [14KJA530001]
- Natural Science Foundation of Jiangsu Province [BK20131407, BK20151531]
- Foundation from State Key Laboratory of Materials-oriented Chemical Engineering, Nanjing Tech University [ZK201305]
- Research Innovation Training Project for Graduate Students of Jiangsu Province [KYZZ_0227]
- Practice and Innovation Training Project for College Students of Jiangsu Province [201410291041Z, 201310291036Z]
A new, simple and effective strategy to confine dicationic acid ionic liquids (DAILs, 1,4-bis[3-(propyl-3-sulfonate) imidazolium] butane hydrogen sulfate) in the cages of MIL-100(Fe) frameworks was constructed. The target catalyst, defined as MIL-100(Fe)@DAILs, was characterized by XRD, FTIR, SEM, TEM, EA, TGA and N-2 adsorption-desorption. Meanwhile, the catalytic activity of the MIL-100(Fe)@DAILs catalyst was evaluated by the esterification reaction with oleic acid and methanol. The results indicated that the DAILs had been effectively encapsulated within the cages of the MIL-100(Fe) frameworks. Moreover, the influence of reaction time, reaction temperature, molar ratio of methanol to oleic acid and catalyst dosage on the conversion of oleic acid was studied by univariate analysis. The conversion of oleic acid decreased from 93.5% to 86.0% when the catalyst was reused five times, which indicated that the target catalyst possessed higher catalytic activity and superior catalytic activity. Finally, an esterification mechanism catalyzed by this novel catalyst was illustrated.
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