摘要
以杂多酸H_3PW_(12)O_(40)为催化剂,1-烯丙基-3-甲基咪唑氯盐([Amim]Cl)离子液体为溶剂,在较温和条件下对微晶纤维素(MCC)进行降解实验。研究了反应温度、反应时间、加水量及催化剂用量等条件对降解反应的影响。研究结果表明,以离子液体[Amim]Cl(2.0 g)为溶剂,降解微晶纤维素(0.1 g,0.6 mmol),当催化剂用量为0.09当量(eq)、加水量为0.07 m L、微波加热160℃反应30 min时,微晶纤维素的降解效果最佳,其中可还原糖(TRS)的收率可达66.8%,葡萄糖收率为32.8%,纤维二糖收率为17.6%。
Microcrystalline cellulose is degraded in 1-allyl-3-methylimidazolium chloride（[Amim]Cl） ionic liquid using heteropoly acid H_3PW_（12）O_（40） as catalyst under the mild environment.The effects of reaction temperature and time,the amount of catalysts and water on the degradation of cellulose have been investigated in details.When using 0.09eq of H_3PW_（12）O_（40）,0.07 m L of water,ca.0.6 mmol of microcrystalline cellulose and 2.0 g of [Amim]Cl under microwave irradiation for 30 min at 160℃,66.8% of total reducing sugar（TRS）yield,32.8% of glucose yield and 17.6% of the cellobiose yield can be obtained.
出处
《科技导报》
CAS
CSCD
北大核心
2016年第8期35-39,共5页
Science & Technology Review
基金
国家科技支撑计划项目(2012BAF03B02)
关键词
微晶纤维素
杂多酸
还原糖
葡萄糖
microcrystalline cellulose
heteropoly acid
total reducing sugar
glucose
