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A novel microwave-assisted hydrothermal route for the synthesis of Zn(x)TPA/γ-Al(2)O(3) for conversion of carbohydrates into 5-hydroxymethylfurfural
Energy-efficient and sustainable processes for the production of 5-hydroxymethylfurfural (HMF) from carbohydrates are in high demand. Bivalent ion-exchanged microwave-synthesized Zn(x)TPA/γ-Al(2)O(3) was employed for the direct conversion of carbohydrates into HMF. The as-synthesized samples were st...
Autores principales: | , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
The Royal Society of Chemistry
2018
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9084178/ https://www.ncbi.nlm.nih.gov/pubmed/35542478 http://dx.doi.org/10.1039/c8ra05077e |
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author | Parameswaram, G. Roy, Sounak |
author_facet | Parameswaram, G. Roy, Sounak |
author_sort | Parameswaram, G. |
collection | PubMed |
description | Energy-efficient and sustainable processes for the production of 5-hydroxymethylfurfural (HMF) from carbohydrates are in high demand. Bivalent ion-exchanged microwave-synthesized Zn(x)TPA/γ-Al(2)O(3) was employed for the direct conversion of carbohydrates into HMF. The as-synthesized samples were structurally characterized by FTIR and Raman spectroscopy, UV-Vis diffused reflectance spectroscopy, and X-ray diffraction. Thermal characterization was performed by TG-DTA. The surface morphology was analysed by FE-SEM, and surface area analysis was performed. The surface acidities of the as-synthesized catalysts were elucidated by pyridine FTIR spectra and NH(3)-TPD. The catalytic performance was thoroughly studied as a function of Zn(2+) doping, reaction temperature, catalysts loading, and effect of solvents. Microwave-synthesized Zn(0.5)TPA/γ-Al(2)O(3) exhibited excellent catalytic fructose dehydration, with 88% HMF yield at 120 °C for 2 h. The surface Brønsted acidity was found to be crucial for optimum catalytic activity. |
format | Online Article Text |
id | pubmed-9084178 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2018 |
publisher | The Royal Society of Chemistry |
record_format | MEDLINE/PubMed |
spelling | pubmed-90841782022-05-09 A novel microwave-assisted hydrothermal route for the synthesis of Zn(x)TPA/γ-Al(2)O(3) for conversion of carbohydrates into 5-hydroxymethylfurfural Parameswaram, G. Roy, Sounak RSC Adv Chemistry Energy-efficient and sustainable processes for the production of 5-hydroxymethylfurfural (HMF) from carbohydrates are in high demand. Bivalent ion-exchanged microwave-synthesized Zn(x)TPA/γ-Al(2)O(3) was employed for the direct conversion of carbohydrates into HMF. The as-synthesized samples were structurally characterized by FTIR and Raman spectroscopy, UV-Vis diffused reflectance spectroscopy, and X-ray diffraction. Thermal characterization was performed by TG-DTA. The surface morphology was analysed by FE-SEM, and surface area analysis was performed. The surface acidities of the as-synthesized catalysts were elucidated by pyridine FTIR spectra and NH(3)-TPD. The catalytic performance was thoroughly studied as a function of Zn(2+) doping, reaction temperature, catalysts loading, and effect of solvents. Microwave-synthesized Zn(0.5)TPA/γ-Al(2)O(3) exhibited excellent catalytic fructose dehydration, with 88% HMF yield at 120 °C for 2 h. The surface Brønsted acidity was found to be crucial for optimum catalytic activity. The Royal Society of Chemistry 2018-08-09 /pmc/articles/PMC9084178/ /pubmed/35542478 http://dx.doi.org/10.1039/c8ra05077e Text en This journal is © The Royal Society of Chemistry https://creativecommons.org/licenses/by-nc/3.0/ |
spellingShingle | Chemistry Parameswaram, G. Roy, Sounak A novel microwave-assisted hydrothermal route for the synthesis of Zn(x)TPA/γ-Al(2)O(3) for conversion of carbohydrates into 5-hydroxymethylfurfural |
title | A novel microwave-assisted hydrothermal route for the synthesis of Zn(x)TPA/γ-Al(2)O(3) for conversion of carbohydrates into 5-hydroxymethylfurfural |
title_full | A novel microwave-assisted hydrothermal route for the synthesis of Zn(x)TPA/γ-Al(2)O(3) for conversion of carbohydrates into 5-hydroxymethylfurfural |
title_fullStr | A novel microwave-assisted hydrothermal route for the synthesis of Zn(x)TPA/γ-Al(2)O(3) for conversion of carbohydrates into 5-hydroxymethylfurfural |
title_full_unstemmed | A novel microwave-assisted hydrothermal route for the synthesis of Zn(x)TPA/γ-Al(2)O(3) for conversion of carbohydrates into 5-hydroxymethylfurfural |
title_short | A novel microwave-assisted hydrothermal route for the synthesis of Zn(x)TPA/γ-Al(2)O(3) for conversion of carbohydrates into 5-hydroxymethylfurfural |
title_sort | novel microwave-assisted hydrothermal route for the synthesis of zn(x)tpa/γ-al(2)o(3) for conversion of carbohydrates into 5-hydroxymethylfurfural |
topic | Chemistry |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9084178/ https://www.ncbi.nlm.nih.gov/pubmed/35542478 http://dx.doi.org/10.1039/c8ra05077e |
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