Eco-Friendly Synthesis of SO3H-Containing Solid Acid via Mechanochemistry for the Conversion of Carbohydrates to 5-Hydroxymethylfurfural

This study provides a novel green method for the preparation of an SO3H-containing heterogeneous catalyst, which should have great application potential in other processes of biomass valorization

Shuang Sun; Lijie Zhao; Jirui Yang; Xiaoqi Wang; Xiaoya Qin; Xinhua Qi; Feng Shen

2020

Scholarcy highlights

  • A green, efficient, and facile ball-milling-assisted strategy was proposed to design an SO3H-containing solid acid for biomass valorization, where −SH groups were grafted on a natural clay attapulgite by wet ball milling with 3-mercaptopropyltrimethoxysilane, followed by the oxidation of −SH to −SO3H with H2O2 at room temperature
  • The mechanism of the −SO3H functionalization by the ball-milling process was investigated, and the investigation indicated that the MTPS was grafted on the attapulgite through hydrolysis and condensation, which was induced by the mechanical forces of ball milling
  • The prepared catalyst displayed a high activity toward the transformation of biomass-derived carbohydrates into the more valuable chemical 5-hydroxymethylfurfural due to the synergy effect of MgO and −SO3H sites on the catalyst
  • This study provides a novel green method for the preparation of an SO3H-containing heterogeneous catalyst, which should have great application potential in other processes of biomass valorization
  • FT-IR spectrum and NH3-TPD spectrum of the prepared catalysts, fructose yield from glucose catalyzed by APG, effect of ball-milling time on sulfur content of the APG-SH, and effect of reaction time on the 5-HMF yield
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