以离子液体1-烯丙基-3-甲基咪唑氯盐（[Amim]Cl）为溶剂，以咪唑类酸功能离子液体[Cn mim]HSO4（n＝2，3，4，5，6，7）为催化剂，在微波辅助加热条件下降解微晶纤维素（MCC），考察了反应温度、反应时间、催化剂用量、加水量、催化剂的哈米特酸度及种类等反应条件对MCC降解反应的影响。结果表明，酸性离子液体的催化效果与其酸性大小有关，其中[C6 mim]HSO4的哈米特酸度值最小，酸性最强，作为催化剂时效果最佳，当[C6 mim]HSO4的加入量为0．1 g，纤维素和催化剂的摩尔比为1∶1，反应温度为110℃，反应时间为40 min，加水量为70μL时，微晶纤维素转化率为100％，可还原糖收率为89．94％，葡萄糖收率高达46．24％。该反应使用常见的微波法，操作简单、方便、快速且无污染，与以往反应相比得到的葡萄糖收率较高，为在工业上应用提供了一种可行的方法。%Imidazolium based acid ionic liquids(IBAILs)were used to catalyze the hydrolysis of cellulose in ionic liquid 1-allyl-3-methylimidazolium chloride via microwave-assisted irradiation.The effects of reac-tion temperature,reaction time,the catalyst dosage,amount of water and the type of catalysts on the degra-dation of cellulose were studied.The catalytic activity of IBAILs was showed to be relevant to their acid-ity,the [C6 mim]HSO4 acidity is best.The results indicated that [C6 mim]HSO4 is an efficient catalyst for the degradation of cellulose.The cellulose can be completely converted with the highest TRS yield of 89.94% and glucose yield of 46.24% under the condition of nMCC∶n[C6mim]HSO4 =1∶1,the mass of [C6 mim]HSO4 =0.1 g,the dosage of water was 70 μL and reaction temperature 1 10 ℃ under micro-wave-assisted heating for 40 min.The reaction use microwave common method,simple and convenient op-eration,fast and no pollution,can get relative higher glucose yield than the old reaction.This study pro-vides a feasible method to be widely used in industry.
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