Issue 52, 2018, Issue in Progress
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RSC Advances

A glucose modified filter paper for effective oil/water separation†

Zhonglin Luo, ORCID logo *abc   Cong Duan,a   Yan Li,a   Yanbin Wangab  and  Biaobing Wang*ab  

* Corresponding authors

a School of Material Science and Engineering, National Experimental Demonstration Center for Materials Science and Engineering (Changzhou University), Changzhou, P. R. China
E-mail: zhonglinluo@cczu.edu.cn, biaobing@cczu.edu.cn

b Jiangsu Collaborative Innovation Center of Photovolatic Science and Engineering, Changzhou, Jiangsu, P. R. China

c State Key Laboratory of Molecular Engineering of Polymers (Fudan University), Shanghai, P. R. China

Abstract

Efficient and low-cost oil/water separation remains a great challenge for industries. Natural cellulose-based filter paper, because of its abundance, low cost, biodegradability and excellent chemical stability, has been developed as an oil/water separator in recent years. In the present study, a superhydrophilic and underwater superoleophobic filter paper is successfully prepared by an aldol condensation reaction to crosslink glucose molecules with filter paper. The prepared filter paper is characterized by IR-spectroscopy, SEM spectroscopy and wettability measurements, and it has high underwater oil contact angles of over 162° for hexane, toluene and petroleum ether. It is shown that the modified filter paper has high water recovery from various oil/water mixtures, not only in a gentle environment but also in acidic, alkaline, and salty environments and at different temperatures. Moreover, the glucose modified filter paper shows excellent oil/water emulsion separation efficiency (>99%) and good recycling performance. The preparation is economic and could be easily scaled up, suggesting its great potential for large-scale industrial applications.

Graphical abstract: A glucose modified filter paper for effective oil/water separation

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Article information

DOI
https://doi.org/10.1039/C8RA04328K
Article type
Paper
Submitted
21 May 2018
Accepted
14 Aug 2018
First published
21 Aug 2018
This article is Open Access
Creative Commons BY-NC license

RSC Adv., 2018,8, 29570-29577

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A glucose modified filter paper for effective oil/water separation

Z. Luo, C. Duan, Y. Li, Y. Wang and B. Wang, RSC Adv., 2018, 8, 29570 DOI: 10.1039/C8RA04328K

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