A novel magnetic carbon-based solid acid catalyst suitable for efficient hydrolysis of cellulose

作者：Hu, Shuang-Lan^*; Zeng, Ying-Jie; Wu, De-Zhi; Lou, Wen-Yong^*

来源：Biomass Conversion and Biorefinery, 2023, 13(3): 2207-2215.

DOI：10.1007/s13399-020-01240-9

• Magnetism
• Cellulose hydrolysis
• Adsorb groups
• Solid acid catalyst
• Sulfonic acid group

A sucralose-derived magnetically separable carbon-based solid acid catalyst with cellulose-binding and catalytic sites has been successfully prepared by incompletely carbonizing the sulfonated sucralose with Fe3+ at high temperature to load -Fe2O3 nanoparticles onto the surface of the catalyst. The resultant magnetic catalyst was fully characterized and found to be suitable in the hydrolysis of cellulose. Microcrystalline cellulose pretreated by ball milling achieved the highest glucose yield of 32% using this neoteric catalyst at 363 K. Catalysts retained 90% of their activity after five runs recycle. The introduction of magnetic properties into the catalyst system will combine the high catalytic capacity for hydrolyzing cellulose and magnetic materials' separation convenience.