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<sub>2</sub>, TiO<sub>2</sub>, boron nitride BN, and carbon nitride C<sub>3</...
| Main Authors: | , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2022-07-01
|
| Series: | Molecules |
| Subjects: | |
| Online Access: | https://www.mdpi.com/1420-3049/27/15/4722 |
| _version_ | 1797412997937758208 |
|---|---|
| author | Elisa I. García-López Vincenzo Campisciano Francesco Giacalone Leonarda Francesca Liotta Giuseppe Marcì |
| author_facet | Elisa I. García-López Vincenzo Campisciano Francesco Giacalone Leonarda Francesca Liotta Giuseppe Marcì |
| author_sort | Elisa I. García-López |
| collection | DOAJ |
| 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<sub>2</sub>, TiO<sub>2</sub>, boron nitride BN, and carbon nitride C<sub>3</sub>N<sub>4</sub>. The other set was, instead, obtained by immobilizing Keggin heteropolyacid H<sub>3</sub>PW<sub>12</sub>O<sub>40</sub> 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<sup>−1</sup>. 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. |
| first_indexed | 2024-03-09T05:11:11Z |
| format | Article |
| id | doaj.art-91ff99b70a2d46b7811bf873d03e0fb2 |
| institution | Directory Open Access Journal |
| issn | 1420-3049 |
| language | English |
| last_indexed | 2024-03-09T05:11:11Z |
| publishDate | 2022-07-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Molecules |
| spelling | doaj.art-91ff99b70a2d46b7811bf873d03e0fb22023-12-03T12:49:10ZengMDPI AGMolecules1420-30492022-07-012715472210.3390/molecules27154722Supported Poly(Ionic Liquid)-Heteropolyacid Based Materials for Heterogeneous Catalytic Fructose Dehydration in Aqueous MediumElisa I. García-López0Vincenzo Campisciano1Francesco Giacalone2Leonarda Francesca Liotta3Giuseppe Marcì4Department of Biological, Chemical and Pharmaceutical Sciences and Technologies (STEBICEF), INSTM UdR—Palermo, University of Palermo, Viale delle Scienze, 90128 Palermo, ItalyDepartment of Biological, Chemical and Pharmaceutical Sciences and Technologies (STEBICEF), INSTM UdR—Palermo, University of Palermo, Viale delle Scienze, 90128 Palermo, ItalyDepartment of Biological, Chemical and Pharmaceutical Sciences and Technologies (STEBICEF), INSTM UdR—Palermo, University of Palermo, Viale delle Scienze, 90128 Palermo, ItalyIstituto per lo Studio dei Materiali Nanostrutturati (ISMN)-CNR, Via Ugo La Malfa 153, 90146 Palermo, Italy“Schiavello-Grillone” Photocatalysis Group, Department of Engineering, University of Palermo, Viale delle Scienze, 90128 Palermo, ItalyTwo 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<sub>2</sub>, TiO<sub>2</sub>, boron nitride BN, and carbon nitride C<sub>3</sub>N<sub>4</sub>. The other set was, instead, obtained by immobilizing Keggin heteropolyacid H<sub>3</sub>PW<sub>12</sub>O<sub>40</sub> 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<sup>−1</sup>. 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.https://www.mdpi.com/1420-3049/27/15/4722Hybrid materialsionic liquidsheteropolyacidfructose dehydration |
| spellingShingle | Elisa I. García-López Vincenzo Campisciano Francesco Giacalone Leonarda Francesca Liotta Giuseppe Marcì Supported Poly(Ionic Liquid)-Heteropolyacid Based Materials for Heterogeneous Catalytic Fructose Dehydration in Aqueous Medium Molecules Hybrid materials ionic liquids heteropolyacid fructose dehydration |
| 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 | Hybrid materials ionic liquids heteropolyacid fructose dehydration |
| url | https://www.mdpi.com/1420-3049/27/15/4722 |
| work_keys_str_mv | AT elisaigarcialopez supportedpolyionicliquidheteropolyacidbasedmaterialsforheterogeneouscatalyticfructosedehydrationinaqueousmedium AT vincenzocampisciano supportedpolyionicliquidheteropolyacidbasedmaterialsforheterogeneouscatalyticfructosedehydrationinaqueousmedium AT francescogiacalone supportedpolyionicliquidheteropolyacidbasedmaterialsforheterogeneouscatalyticfructosedehydrationinaqueousmedium AT leonardafrancescaliotta supportedpolyionicliquidheteropolyacidbasedmaterialsforheterogeneouscatalyticfructosedehydrationinaqueousmedium AT giuseppemarci supportedpolyionicliquidheteropolyacidbasedmaterialsforheterogeneouscatalyticfructosedehydrationinaqueousmedium |