Efficient Hydroxymethylfurfural Production over Phosphoric Carbon Solid Acids

Abstract

It is very important to prepare bio-based chemicals from biomass in an eco-friendly and economical process. Herein, a simple and efficient route was proposed to synthesize the phosphoric carbons via one-pot hydrothermal method using glucose as carbon precursor in an aqueous H₃PO₄ solution. The experimental results presented that the acid density and surface area of the phosphoric carbons were adjustable and showed excellent catalytic activity for biochemical 5-hydroxymethylfurfural (HMF) production from fructose dehydration. 93.7 and 80.9% HMF yield was obtained over the carbon material in DMSO (solvent) and 2-butanol-H₂O biphasic system under the investigated reaction conditions, respectively.

The cost-efficient solid acids phosphoric carbon with adjustable acidity density have been synthesized, and the catalysts show good performances on 5-hydromethylfurfural (HMF) production from fructose. 93% of HMF yield was obtained catalyzed by phosphoric carbon in DMSO system.