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Journal of Sol-Gel Science and Technology
Erschienen in: Journal of Sol-Gel Science and Technology 2/2016

01.02.2016 | Original Paper

Nanostructured sodium–zeolite imidazolate framework (ZIF-8) doped with potassium by sol–gel processing for biodiesel production from soybean oil

verfasst von: Mandana Saeedi, Razieh Fazaeli, Hamid Aliyan

Erschienen in: Journal of Sol-Gel Science and Technology | Ausgabe 2/2016

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Abstract

Zeolite imidazolate framework (ZIF-8) doped with potassium (KNa/ZIF-8) was prepared under hydrothermal conditions. FTIR, powder XRD, scanning electron microscopy, N2 physisorption and TGA were used to characterize synthesized catalysts. Furthermore, biodiesel was synthesized using soybean oil as the feedstock by KNa/ZIF-8-catalyzed transesterification process. In order to increase the basicity and consequently improve the performance of ZIF-8 in the transesterification of soybean oil with methanol, sodium and potassium were added to it. The effect of various reaction parameters, including methanol/oil molar ratio, reaction, catalyst mass and temperature on the reaction, was studied. Using KNa/ZIF-8 and methanol/oil molar ratio of 10:1 over a period of 3.5 h afforded a remarkable conversion of >98. The solid catalyst can be recycled least three times under mild conditions. KNa/ZIF-8 demonstrated higher activity in the transesterification of soybean oil compared with Na and K (as dopant) modifications on the conventional support (SiO2) and other MOF (MIL-101 and MIL-100) materials.

Graphical Abstract

Vorheriger Artikel Sol–gel-based single and multilayer nanoparticle thin films on low-temperature substrate poly-methyl methacrylate for optical applications
Nächster Artikel Sol–gel synthesis of nanoparticles of gamma alumina and their application in defluoridation of water

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Metadaten
Titel
Nanostructured sodium–zeolite imidazolate framework (ZIF-8) doped with potassium by sol–gel processing for biodiesel production from soybean oil
verfasst von
Mandana Saeedi
Razieh Fazaeli
Hamid Aliyan
Publikationsdatum
01.02.2016
Verlag
Springer US
Erschienen in
Journal of Sol-Gel Science and Technology / Ausgabe 2/2016
Print ISSN: 0928-0707
Elektronische ISSN: 1573-4846
DOI
https://doi.org/10.1007/s10971-015-3867-1

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