[1]牟莉,张龙,马立国.离子液体体系下的玉米秸秆降解条件[J].东南大学学报(自然科学版),2010,40(4):805-809.[doi:10.3969/j.issn.1001-0505.2010.04.027]
 Mu Li,Zhang Long,Ma Liguo.Degradation of cornstalks under ionic liquid system[J].Journal of Southeast University (Natural Science Edition),2010,40(4):805-809.[doi:10.3969/j.issn.1001-0505.2010.04.027]
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离子液体体系下的玉米秸秆降解条件()
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《东南大学学报(自然科学版)》[ISSN:1001-0505/CN:32-1178/N]

卷:
40
期数:
2010年第4期
页码:
805-809
栏目:
化学化工
出版日期:
2010-07-20

文章信息/Info

Title:
Degradation of cornstalks under ionic liquid system
作者:
牟莉12 张龙13 马立国3
1 东北师范大学化学学院,长春 130028; 2 长春大学生物科学技术学院,长春 130023; 3 长春工业大学化工学院,长春 130012
Author(s):
Mu Li12 Zhang Long13 Ma Liguo3
1 Faculty of Chemistry,Northeast Normal University,Changchun 130028, China
2 School of Bioscience and Technology, Changchun University, Changchun 130023, China
3 School of Chemical Engineering, Changchun University of Technology, Changchun 130012, China
关键词:
降解 玉米秸秆 离子液体 催化
Keywords:
degradation cornstalks ionic liquids catalyse
分类号:
O636
DOI:
10.3969/j.issn.1001-0505.2010.04.027
摘要:
在离子液体体系下,采用HCl作为催化剂对玉米秸秆进行降解.研究了降解条件(催化剂体积分数、反应温度、反应时间)对玉米秸秆降解过程的影响,确定适宜降解条件为催化剂体积分数7.4%,反应温度85℃,反应时间2.5h.在此条件下,得到的玉米秸秆的降解率为65.8%; 在工艺参数相同的条件下,离子液体体系下玉米秸秆的降解率比水体系下玉米秸秆的降解率提高了48.7%.利用SEM分析最优降解参数下固体产物的结构特征,结果表明,离子液体体系降解下产物中纤维素的聚合度降低.红外分析结果表明,离子液体体系与水体系下玉米秸秆降解的剩余物结构基本一致.
Abstract:
Under ionic liquid system,the degradation conditions(catalyst concentration,reaction temperature and time)were optimized. The optimal conditions are volume fraction 7.4%,reaction temperature 85℃ and reaction time 2.5h, which yield a degradation rate of 65.8%. Under the optimal conditions,a comparative study was performed to evaluate the effects of ionic liquid system and aqueous solution system on degradation,and the results show that degradation rate via ionic liquid system is increased by 48.7%. The morphology of degradation product via ionic liquids system and aqueous solution system were tested with SEM(scanning electron microscope)and the results show that in ionic liquid system the polymerization degree of the product decreases. FTIR(Fourier transform infrared spectroscopy)spectra indicates that the degradation products obtained by ionic liquids system are similar with those from aqueous solution system.

参考文献/References:

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备注/Memo

备注/Memo:
作者简介: 牟莉(1970—),女,博士生; 张龙(联系人),男,博士,教授,博士生导师,zhanglongzhl@163.com.
引文格式: 牟莉,张龙,马立国.离子液体体系下的玉米秸秆降解条件[J].东南大学学报:自然科学版,2010,40(4):805-809. [doi:10.3969/j.issn.1001-0505.2010.04.027]
更新日期/Last Update: 2010-07-20