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Published in: Cellulose 1/2018

06-12-2017 | Original Paper

Preparation of magnetic MnFe2O4-Cellulose aerogel composite and its kinetics and thermodynamics of Cu(II) adsorption

Authors: Sheng Cui, Xue Wang, Xin Zhang, Wei Xia, Xianglong Tang, Benlan Lin, Qi Wu, Xin Zhang, Xiaodong Shen

Published in: Cellulose | Issue 1/2018

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Abstract

In this paper, a MnFe2O4-Cellulose magnetic composite aerogel (MnCA) with high adsorption capacity was fabricated by in situ incorporating MnFe2O4 to regenerated cellulose hydrogel matrix, followed by CO2 supercritical drying. A green synthetic strategy was performed by using renewable cellulose materials, environmentally benign cellulose solvents and facile synthetic conditions. The results showed that the obtained magnetic cellulose aerogel had a continuous and tiered three dimensional network with interconnected fibrils of about 30 nm in width, which was similar to those of cellulose aerogel prepared from NaOH/urea solution via CO2 supercritical drying. Meanwhile, they had high specific surface areas of 236–288 m2/g and total pore volume of 0.55–0.88 cm3/g. In addition, the hybrid aerogel showed superparamagnetism with maximum saturation magnetization reaching up to 18.53 emu/g. The magnetic nanocomposite aerogel could be used for biological and environmental applications. The adsorption test showed that MnCA had rapid adsorption rate and excellent adsorption ability of removing heavy metal ions in aqueous solution which could attain to 63.3 mg/g within 100 min. Moreover, all the composite aerogels exhibited good reusability and could be easily reused from the water after adsorption.

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Literature
Metadata
Title
Preparation of magnetic MnFe2O4-Cellulose aerogel composite and its kinetics and thermodynamics of Cu(II) adsorption
Authors
Sheng Cui
Xue Wang
Xin Zhang
Wei Xia
Xianglong Tang
Benlan Lin
Qi Wu
Xin Zhang
Xiaodong Shen
Publication date
06-12-2017
Publisher
Springer Netherlands
Published in
Cellulose / Issue 1/2018
Print ISSN: 0969-0239
Electronic ISSN: 1572-882X
DOI
https://doi.org/10.1007/s10570-017-1598-x

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