View in EDS

Dehydration of glucose to 5-hydroxymethylfurfural by a core-shell Fe3O4@SiO2-SO3H magnetic nanoparticle catalyst.

Saved in:
Bibliographic Details
Title: Dehydration of glucose to 5-hydroxymethylfurfural by a core-shell Fe3O4@SiO2-SO3H magnetic nanoparticle catalyst.
Authors: Elsayed, Islam1,2, Mashaly, Mohammad2, Eltaweel, Fathy2, Jackson, Michael A.3, Hassan, El Barbary1 e.hassan@msstate.edu
Source: Fuel (0016-2361). Jun2018, Vol. 221, p407-416. 10p.
Subjects: Hydroxymethylfurfural, Iron oxide nanoparticles, Silica nanoparticles, Magnetic nanoparticles, Catalytic activity, Dehydration reactions, Glucose
Abstract: In this paper we discuss the potential use of (Fe 3 O 4 @SiO 2 -SO 3 H) nanoparticle catalyst for the dehydration of glucose into 5-hydroxymethylfurfural (HMF). A magnetically recoverable (Fe 3 O 4 @SiO 2 -SO 3 H) nanoparticle catalyst was successfully prepared by supporting sulfonic acid groups (SO 3 H) on the surface of silica-coated Fe 3 O 4 nanoparticles. The prepared catalyst was characterized by FTIR, TGA, XRD, HRTEM-EDX, and N 2 adsorption-desorption isothermal analyses. The catalyst’s surface acidity was determined by acid-base titration. Dehydration of glucose was performed in a biphasic system made up of water and methylisobutylketone (water/MIBK), and the effect of various reaction parameters affecting on the yield of HMF such as biphasic system ratio, catalyst concentration, temperature, time, and dimethylsulfoxide (DMSO) ratio were studied. Fe 3 O 4 @SiO 2 -SO 3 H catalyst disclosed a great catalytic activity for the formation of HMF and glucose conversion. About 70% yield of HMF and 98% glucose conversion were obtained at the optimum reaction conditions (40% catalyst concentration, 140 °C, 24 h and biphasic system of 1:4 (water: MIBK) ratio). At the end of the reaction, the catalyst was easily removed from the reaction mixture using a magnet and reused several times without high loss in catalytic activity. [ABSTRACT FROM AUTHOR]
Copyright of Fuel (0016-2361) is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
Database: Engineering Source
Description
Abstract:In this paper we discuss the potential use of (Fe 3 O 4 @SiO 2 -SO 3 H) nanoparticle catalyst for the dehydration of glucose into 5-hydroxymethylfurfural (HMF). A magnetically recoverable (Fe 3 O 4 @SiO 2 -SO 3 H) nanoparticle catalyst was successfully prepared by supporting sulfonic acid groups (SO 3 H) on the surface of silica-coated Fe 3 O 4 nanoparticles. The prepared catalyst was characterized by FTIR, TGA, XRD, HRTEM-EDX, and N 2 adsorption-desorption isothermal analyses. The catalyst’s surface acidity was determined by acid-base titration. Dehydration of glucose was performed in a biphasic system made up of water and methylisobutylketone (water/MIBK), and the effect of various reaction parameters affecting on the yield of HMF such as biphasic system ratio, catalyst concentration, temperature, time, and dimethylsulfoxide (DMSO) ratio were studied. Fe 3 O 4 @SiO 2 -SO 3 H catalyst disclosed a great catalytic activity for the formation of HMF and glucose conversion. About 70% yield of HMF and 98% glucose conversion were obtained at the optimum reaction conditions (40% catalyst concentration, 140 °C, 24 h and biphasic system of 1:4 (water: MIBK) ratio). At the end of the reaction, the catalyst was easily removed from the reaction mixture using a magnet and reused several times without high loss in catalytic activity. [ABSTRACT FROM AUTHOR]
ISSN:00162361
DOI:10.1016/j.fuel.2018.02.135