One-step preparation of carbonaceous solid acid catalysts by hydrothermal carbonization of glucose for cellulose hydrolysis

• One-step synthesis of carbonaceous solid acid catalysts with SO3H or COOH groups
• Solid acid prepared from the hydrothermal carbonization of glucose
• Carbonaceous material without any post-modification or in-situ functionalization
• Efficient for cellulose hydrolysis in ionic liquid

Carbonaceous materials (CM-SO3H, CM-COOH) were prepared and functionalized in-situ in a single step with SO3H or COOH groups by hydrothermal carbonization of glucose in the presence of sulfosalicylic acid or acrylic acid as co-monomer. The prepared materials were evaluated as solid acid catalysts and exhibited good catalytic activity for the hydrolysis of cellulose in the ionic liquid 1-butyl-3-methylimidazolium chloride ([BMIM][Cl]). Remarkably, the carbonaceous materials obtained by the hydrothermal carbonization of glucose could be used directly for the catalytic hydrolysis of cellulose without any post-modification or in-situ functionalization and were surprisingly efficient.

It is reported for the first time that carbonaceous material prepared from the hydrothermal carbonization of glucose could be used directly without any post-modification, and exhibited good catalytic activity for hydrolysis of cellulose as solid acid catalyst.Figure optionsDownload as PowerPoint slide