溶解体系对纤维素基气凝胶性能的影响

doi:10.12034/j.issn.1009-606X.217188

过程工程学报 ›› 2017, Vol. 17 ›› Issue (6): 1310-1315.DOI: 10.12034/j.issn.1009-606X.217188

溶解体系对纤维素基气凝胶性能的影响

张玉清¹，刘以凡¹，杨桂芳¹，卢佳辰²，刘明华^1*

1. 福州大学环境与资源学院，福建省生物质资源化技术开发基地，福建福州 350000；2. 中原大学，台湾桃园 32023

收稿日期:2017-03-24 修回日期:2017-04-24 出版日期:2017-12-20 发布日期:2017-12-05
通讯作者: 刘明华 mhliu2000@fzu.edu.cn
基金资助:
功能化还原性纤维素基气凝胶的制备及其对无机微污染物的作用机制

Effect of Dissolution Systems on Properties of Cellulose-based Aerogels

Yuqing ZHANG¹, Yifan LIU¹, Guifang YANG¹, Jiachen LU², Minghua LIU^1*

1. College of Environment and Resources, Development Base of Biomass Resources in Fujian Province, Fuzhou University, Fuzhou, Fujian 350116, China; 2. Chungyuan Christian University, Taiwan, Taoyuan 32023

Received:2017-03-24 Revised:2017-04-24 Online:2017-12-20 Published:2017-12-05
Contact: LIU Ming-hua mhliu2000@fzu.edu.cn
Supported by:
The preparation of functional reductive cellulose based aerogels and their action mechanisms on micro-pollutants

摘要/Abstract

摘要： 分别用NaOH/脲/H2O和NaOH/硫脲/H2O、离子液体1-丁基-3-甲基咪唑氯盐(BMIMCl)和1-烯丙基-3-甲基咪唑氯盐(AMIMCl)四种溶解体系溶解脱脂棉纤维素，制得不同的纤维素基气凝胶，对产品进行了表征，考察了不同气凝胶对氯酸根离子(ClO3?)吸附性能的差异. 结果表明，纤维素基气凝胶的晶型结构均由I型转为Ⅱ型结构，BMIMCl溶解体系所制气凝胶结晶度较其它溶解体系低，热稳定性也较差，但其比表面积和总孔容较高，平均孔径较小，对水溶液中微量ClO3-?的吸附性能较好.

关键词: 溶解体系, 纤维素, 气凝胶, 离子液体, 氯酸根离子, 性能

Abstract: In order to study the properties of cellulose-based aerogels obtained from different dissolution systems, cotton cellulose was dissolved in four kinds of dissolving system including NaOH/urea/H2O, NaOH/thiourea/H2O, ionic liquids 1-butyl-3-methylimidazolium chloride (BMIMCl) and 1-allyl-3-methylimidazolium chloride salt (AMIMCl). Additionally, the obtained cellulose-based aerogels were characterized, and the adsorption performance to chlorate ions (ClO3?) were studied. The results showed that the crystal structures of cellulose-based aerogels transforms from type I into II. The aerogels obtained from BMIMCl solvent system gives lower crystallinity a thermal stability than those from the other solvent systems, whereas it possesses higher specific surface area, total pore volume and smaller average pore size, and higher adsorption performance for trace amount of ClO3? in aqueous solution.

Key words: dissolution system, cellulose, aerogel, ionic liquid, chlorate ions, property

张玉清刘以凡杨桂芳卢佳辰刘明华. 溶解体系对纤维素基气凝胶性能的影响[J]. 过程工程学报, 2017, 17(6): 1310-1315.

Yuqing ZHANG Yifan LIU Guifang YANG Jiachen LU Minghua LIU. Effect of Dissolution Systems on Properties of Cellulose-based Aerogels[J]. Chin. J. Process Eng., 2017, 17(6): 1310-1315.

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溶解体系对纤维素基气凝胶性能的影响

Effect of Dissolution Systems on Properties of Cellulose-based Aerogels

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