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Supported Poly(Ionic Liquid)-Heteropolyacid Based Materials for Heterogeneous Catalytic Fructose Dehydration in Aqueous Medium

Two sets of four different supported catalyst materials were prepared. One set was obtained by polymerization of a bis-vinylimidazolium salt, which formed a poly(ionic liquid) coating on SiO(2), TiO(2), boron nitride BN, and carbon nitride C(3)N(4). The other set was, instead, obtained by immobilizi...

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Autores principales: García-López, Elisa I., Campisciano, Vincenzo, Giacalone, Francesco, Liotta, Leonarda Francesca, Marcì, Giuseppe
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9330319/
https://www.ncbi.nlm.nih.gov/pubmed/35897898
http://dx.doi.org/10.3390/molecules27154722
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author García-López, Elisa I.
Campisciano, Vincenzo
Giacalone, Francesco
Liotta, Leonarda Francesca
Marcì, Giuseppe
author_facet García-López, Elisa I.
Campisciano, Vincenzo
Giacalone, Francesco
Liotta, Leonarda Francesca
Marcì, Giuseppe
author_sort García-López, Elisa I.
collection PubMed
description Two sets of four different supported catalyst materials were prepared. One set was obtained by polymerization of a bis-vinylimidazolium salt, which formed a poly(ionic liquid) coating on SiO(2), TiO(2), boron nitride BN, and carbon nitride C(3)N(4). The other set was, instead, obtained by immobilizing Keggin heteropolyacid H(3)PW(12)O(40) onto poly-imidazolium functionalized materials. All the catalysts, including the bare supports, were subjected to physical and chemical characterization by XRD, SEM, Specific Surface Area and pore size measurements, TGA, FTIR, and acidity-basicity measurements. The catalytic activity of the materials was tested versus the fructose dehydration in water solution at two different sugar initial concentrations (0.3 and 1 M). Tests lasted 3 h with an amount of catalyst of 2 g∙L(−1). The presence of the poly-imidazolium on the surface of the supports increased the catalytic conversion of fructose to 5-hydroxymethylfurfural (the most abundant compound obtained) and was further improved by the contemporary presence of the heteropolyacid, at least for the highest initial fructose concentration. In the latter conditions, the highest yield of 5-hydroxymethylfurfural (>40%) was also obtained.
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spelling pubmed-93303192022-07-29 Supported Poly(Ionic Liquid)-Heteropolyacid Based Materials for Heterogeneous Catalytic Fructose Dehydration in Aqueous Medium García-López, Elisa I. Campisciano, Vincenzo Giacalone, Francesco Liotta, Leonarda Francesca Marcì, Giuseppe Molecules Article Two sets of four different supported catalyst materials were prepared. One set was obtained by polymerization of a bis-vinylimidazolium salt, which formed a poly(ionic liquid) coating on SiO(2), TiO(2), boron nitride BN, and carbon nitride C(3)N(4). The other set was, instead, obtained by immobilizing Keggin heteropolyacid H(3)PW(12)O(40) onto poly-imidazolium functionalized materials. All the catalysts, including the bare supports, were subjected to physical and chemical characterization by XRD, SEM, Specific Surface Area and pore size measurements, TGA, FTIR, and acidity-basicity measurements. The catalytic activity of the materials was tested versus the fructose dehydration in water solution at two different sugar initial concentrations (0.3 and 1 M). Tests lasted 3 h with an amount of catalyst of 2 g∙L(−1). The presence of the poly-imidazolium on the surface of the supports increased the catalytic conversion of fructose to 5-hydroxymethylfurfural (the most abundant compound obtained) and was further improved by the contemporary presence of the heteropolyacid, at least for the highest initial fructose concentration. In the latter conditions, the highest yield of 5-hydroxymethylfurfural (>40%) was also obtained. MDPI 2022-07-23 /pmc/articles/PMC9330319/ /pubmed/35897898 http://dx.doi.org/10.3390/molecules27154722 Text en © 2022 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
García-López, Elisa I.
Campisciano, Vincenzo
Giacalone, Francesco
Liotta, Leonarda Francesca
Marcì, Giuseppe
Supported Poly(Ionic Liquid)-Heteropolyacid Based Materials for Heterogeneous Catalytic Fructose Dehydration in Aqueous Medium
title Supported Poly(Ionic Liquid)-Heteropolyacid Based Materials for Heterogeneous Catalytic Fructose Dehydration in Aqueous Medium
title_full Supported Poly(Ionic Liquid)-Heteropolyacid Based Materials for Heterogeneous Catalytic Fructose Dehydration in Aqueous Medium
title_fullStr Supported Poly(Ionic Liquid)-Heteropolyacid Based Materials for Heterogeneous Catalytic Fructose Dehydration in Aqueous Medium
title_full_unstemmed Supported Poly(Ionic Liquid)-Heteropolyacid Based Materials for Heterogeneous Catalytic Fructose Dehydration in Aqueous Medium
title_short Supported Poly(Ionic Liquid)-Heteropolyacid Based Materials for Heterogeneous Catalytic Fructose Dehydration in Aqueous Medium
title_sort supported poly(ionic liquid)-heteropolyacid based materials for heterogeneous catalytic fructose dehydration in aqueous medium
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9330319/
https://www.ncbi.nlm.nih.gov/pubmed/35897898
http://dx.doi.org/10.3390/molecules27154722
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