亲水改性磺酸型碳材料催化纤维素水解研究

Catalytic Hydrolysis of Cellulose into Reducing Sugars by Hydrophilic Sulfonated Carbon

该研究以微晶纤维素作为纤维素的模型物,开展了对亲水改性的磺酸型碳材料在水热条件下催化纤维素水解产生还原糖的研究,考察了亲水改性对催化水解作用的影响,并分析了在改性碳材料催化条件下,反应时间、催化剂用量、反应温度等因素对纤维素水解过程的影响。研究结果表明碳材料的亲水改性能提高催化剂表层的亲水性能,从而提升其催化水解纤维素的性能。在170℃条件下,催化剂投加量为0.2 g,反应时间为10 h时是纤维素水解和还原糖积累的最佳条件。

The hydrolysis of microcrystalline cellulose into reducing sugars catalyzed by hydrophilic sulfonated carbon under hydrothermal conditions was conducted in this study. The effect of hydrophilic modification process on the hydrolysis of cellulose was investigated and factors such as reaction time,catalyst dosage and reaction temperature were evaluated as well.The results indicated that hydrophilic modification of carbon could improve the catalytic performance of cellulose hydrolysis due to the improved hydrophilicity of the catalyst surface. It was indicated that 170 ℃,0.2g catalyst and 2h reaction time were the optimum conditions for cellulose hydrolysis and reducing sugar accumulation simultaneously.