Abstract Chemocatalytic production of platform compounds from cellulose is remarkable for both clean energy development and environmental pollution control. A battery of bifunctional recyclable amino acid functionalized phosphotungstic acid nanosilver (AAPTA-Ag) catalysts were synthesized for hydrolyzes cellulose in ionic liquid ([BMIM]Cl). The “catalytic domain” and “binding domain” derived from the Bronsted acidity and functional groups (hydroxyl, carboxyl) in the catalyst can synergistically promote the hydrolysis of cellulose effectively. What's more, the tyrosine-derived TyrPTA-Ag with abundant functional groups achieved a significant total reducing sugar (TRS) yield and cellulose conversion of 71.9% and 100% respectively at 140 °C for 1.5 h. Meanwhile, the catalyst cycled to the fifth time still showed good catalytic performance. In light of this research, it is possible to convert cellulosic biomass to TRS in a milder case, giving a relatively higher product yield in [BMIM]Cl solution.

中文翻译：

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基于磷钨酸的双功能可回收催化剂用于纤维素水解为可发酵糖

摘要 以纤维素为原料的平台化合物的化学催化生产对于清洁能源开发和环境污染控制均具有显着意义。合成了一组双功能可回收氨基酸功能化磷钨酸纳米银（AAPTA-Ag）催化剂，用于在离子液体（[BMIM]Cl）中水解纤维素。由布朗斯台德酸度和催化剂中的官能团（羟基、羧基）衍生的“催化域”和“结合域”可以协同有效地促进纤维素的水解。更重要的是，具有丰富官能团的酪氨酸衍生的 TyrPTA-Ag 在 140°C 下 1.5 小时实现了显着的总还原糖 (TRS) 产率和 71.9% 和 100% 的纤维素转化率。同时，催化剂循环至第五次仍表现出良好的催化性能。