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Published in: Cellulose 6/2018

03-05-2018 | Original Paper

Design and preparation of a cellulose-based adsorbent modified by imidazolium ionic liquid functional groups and their studies on anionic dye adsorption

Authors: Su-Feng Zhang, Miao-Xiu Yang, Li-Wei Qian, Chen Hou, Rui-Hua Tang, Jin-Fan Yang, Xue-Chuan Wang

Published in: Cellulose | Issue 6/2018

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Abstract

Adsorption of dyes via strong interactions between modified cellulose paper and dyes is an economical, effective, and sustainable method for treating wastewater. In this work, using multiple interactions with dye molecules, an imidazolium ionic liquid modified cellulose adsorbent (CCP-Im) was prepared and used to treat anionic dye wastewater effectively. Zeta potential tests and Gaussian simulations revealed the strong interactions between CCP-Im and anionic dye molecules. Under optimum adsorption conditions, CCP-Im has good adsorption capacity for anionic dyes, and the maximum adsorption capacities of xylenol orange and Congo red could reach 1169 and 563 mg g−1, which were 3.1 and 3.5 times, respectively, higher than the values of the original cellulose paper. The Freundlich and Scatchard models for isothermal study demonstrated the adsorption process of CCP-Im toward anionic dyes occurred on a heterogeneous surface via multilayer sorption, and the kinetics revealed that a Pseudo-second-order model described the adsorption process well, indicating the adsorption was controlled by the mechanism of chemical adsorption. Therefore, preparation of this bioadsorbent would be useful for environmental protection and development of sustainable resources.

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Metadata
Title
Design and preparation of a cellulose-based adsorbent modified by imidazolium ionic liquid functional groups and their studies on anionic dye adsorption
Authors
Su-Feng Zhang
Miao-Xiu Yang
Li-Wei Qian
Chen Hou
Rui-Hua Tang
Jin-Fan Yang
Xue-Chuan Wang
Publication date
03-05-2018
Publisher
Springer Netherlands
Published in
Cellulose / Issue 6/2018
Print ISSN: 0969-0239
Electronic ISSN: 1572-882X
DOI
https://doi.org/10.1007/s10570-018-1815-2

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