(540d) The Dehydration of Biomass-Derived Fructose into 5-Hydroxymethylfurfural over the Layered Solid Acids HTaMoO6 and HTaMoO6 Nanosheets Aggregates

The layered solid acids HTaMoO₆ and the exfolitated HTaMoO₆ nanosheet aggregates were firstly studied for the dehydration of fructose to 5-hydroxymethylfurfural (HMF). A serial experiments were conducted under various reaction temperature, reaction time, solvents and catalyst ratios. The optimum HMF yields of 86.5% and 82.8% were obtained at 130 ℃ after 40 min and 140 ℃ after 30 min when catalyzed by HTaMoO₆ and HTaMoO₆ nanosheet aggregates, respectively. It was verified that HTaMoO₆ and HTaMoO₆ nanosheet aggregates had pretty good catalytic activity. In addition, the different characterization methods including SEM, XRD, FT-IR, NH₃-TPD and ICP-OES were applied for the layered solid acids.