Journal
JOURNAL OF MOLECULAR CATALYSIS A-CHEMICAL
Volume 398, Issue -, Pages 127-132Publisher
ELSEVIER
DOI: 10.1016/j.molcata.2014.12.002
Keywords
Ionic liquid; Magnetic; Heterogeneous catalyst; Biodiesel
Categories
Funding
- National Natural Science Foundation of China [21176121]
- Foundation from State Key Laboratory of Materials-Oriented Chemical Engineering, Nanjing Tech University [ZK201305]
- Research and Innovation Training Project for Graduate in General Universities of Jiangsu Province [KYZZ_0227]
- Practice and Innovation Training Project for College Students of Jiangsu Province [201310291003Z]
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To develop green and reusable catalysts for the biodiesel preparation, a novel magnetically separable nanocatalyst was fabricated by covalent bonding of 3-sulfopropyl-1-(3-propyltrimethoxysilane) imidazolium hydrogen sulfate ([SO3H-PIM-TMS]HSO4) on mesoporous silica modified Fe3O4 nanoparticle. The catalyst possessed uniform core-shell structure with magnetic response core and Bronsted ionic liquid functionalized mesoporous silica shell. The multifunctional catalyst also exhibited appealing physicochemical features like high specific surface area, mesoporous channel, magnetic response, and fine catalytic activity in esterification of oleic acid with alcohol. Under mind conditions, the conversion of oleic acid was up to 93.5%. The catalyst exhibited recyclable property based on magnetism and the separation of the catalyst would be simply using external magnetic field without obvious mass loss, allowing a clean biodiesel product. (C) 2014 Elsevier B.V. All rights reserved.
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