期刊
JOURNAL OF CLEANER PRODUCTION
卷 240, 期 -, 页码 -出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.jclepro.2019.118201
关键词
Cellulose microsphere; Ionic liquid; Acid orange 7; Fast adsorption rate; Dye adsorption
资金
- National Natural Science Foundation of China [31600461]
- Natural Science Foundation of Jiangsu Province [BK201605553, BK20170579]
- Six talent peaks project in Jiangsu Province [SWYY-155]
- Young Scholars Program of Jiangsu University of Science and Technology Sericulture Industry Technology in China Agriculture Research System [CARS-18-ZJ0207]
- Zhenjiang Agricultural Technology [NY2018013]
In this study, a three-dimensional porous cellulose-based microsphere material modified with ionic liquid functional groups was prepared. Seven kinds of cellulose microspheres with different ionic liquid groups were successfully produced and were used for the adsorption of Acid Orange 7 dye. Cellulose microsphere modified with 4-methylimidazole, named as CMs4, had the greatest adsorption capacity of 218.6 mg/g and the fastest adsorption rate. CMs4 reached an adsorption capacity of 100 mg/g after only 10 min. Compared with materials in other literatures, CMs4 had an excellent Acid Orange 7 dye adsorption rate. According to the zeta potential analysis, the surface potential of CMs4 depended on the pH. Exploiting this property, cationic and anionic dyes can be separated using CMs4 by changing the pH. Since cellulose materials are renewable and widely available, CMs4 is a promising environmentally friendly material for dye adsorption applications. (C) 2019 Elsevier Ltd. All rights reserved.
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