Synthesis of 5-hydroxymethylfurfural from monosaccharides catalyzed by superacid VNU-11-SO 4 in 1-ethyl-3-methylimidazolium chloride ionic liquid

Superacid VNU-11-SO , a modified metal-organic framework by post-synthetic treatment with a sulfuric acid solution, has been considered as a promising heterogeneous catalyst in the isomerization of glucose to fructose and further dehydration to form 5-hydroxymethylfurfural (HMF) due to its possessio...

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Published inRSC advances Vol. 10; no. 65; pp. 39687 - 39692
Main Authors Thuy Nguyen, Linh Ho, Vo, Huong Thi, Phan, Ha Bich, Dinh Dang, Minh Huy, Le Hoang Doan, Tan, Tran, Phuong Hoang
Format Journal Article
LanguageEnglish
Published England 30.10.2020
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Summary:Superacid VNU-11-SO , a modified metal-organic framework by post-synthetic treatment with a sulfuric acid solution, has been considered as a promising heterogeneous catalyst in the isomerization of glucose to fructose and further dehydration to form 5-hydroxymethylfurfural (HMF) due to its possession of both Lewis and Brønsted acid sites. In this work, we focused on using VNU-11-SO for the optimization of the conversion of fructose and glucose into HMF using an ionic liquid as a green solvent. The highest yields of HMF from glucose and fructose could be obtained in 28% (140 °C, 8 h) and 86% (110 °C, 3 h), respectively, with the use of VNU-11-SO catalyst in 1-ethyl-3-methylimidazolium chloride ionic liquid. Recycling examination of the catalyst showed only a slight decrease in the HMF yield, implying its potential industrial application in biomass transformation.
ISSN:2046-2069
2046-2069
DOI:10.1039/D0RA08261A