Weak-acid biochar catalyst prepared from mechanochemically-activated biomass and humic acid for production of 5-hydroxymethylfurfural
Haixin Guo , Sohei Ogawa , Yukiya Isoda , Feng Shen , Richard Lee Smith
Biochar ›› 2022, Vol. 4 ›› Issue (1)
Weak-acid biochar catalyst prepared from mechanochemically-activated biomass and humic acid for production of 5-hydroxymethylfurfural
| • | Carbonization (1 h, 400 °C, N2) of mix ball-milled (10 min) waste leaves and humic acid affords weak-acid biochars. |
| • | As-prepared weak-acid biochars (–COOH, OH, amino groups) were activated solids with adsorptive and catalytic properties. |
| • | Weak-acid biochar catalyst is reusable and promotes fructose dehydration to 5-HMF in yields of 77.5% (140 °C, 60 min). |
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