Issue 33, 2017, Issue in Progress

Thiol–ene click reaction on cellulose sponge and its application for oil/water separation

Abstract

Thiol–ene click reaction was employed to synthesize a flexible hydrophilic cellulose sponge. The reactive vinyl group was introduced by silanization treatment with vinyl-trimethoxysilicane (VTMO), and the resulting silylated cellulose sponge (SCS) can be subsequently functionalized with various thiol-containing compounds such as 3-mercaptopropionic acid, via temperature induced thiol–ene reactions. The hydrophilic cellulose sponge thus prepared displayed an excellent mechanical strength of 70 KPa at 80% compression strain. The prepared sponge features hydrophilic and underwater oleophobic properties and was used in gravity-driven removal of oil from oil-in-water emulsions and oil/water mixtures with a high separation efficiency. The separation efficiency remained 100% after 10 cycles for an oil/water mixture and 95% after 6 cycles for an oil-in-water emulsion.

Graphical abstract: Thiol–ene click reaction on cellulose sponge and its application for oil/water separation

Article information

Article type
Paper
Submitted
20 Jan 2017
Accepted
23 Mar 2017
First published
06 Apr 2017
This article is Open Access
Creative Commons BY license

RSC Adv., 2017,7, 20147-20151

Thiol–ene click reaction on cellulose sponge and its application for oil/water separation

Z. Wu, Y. Li, L. Zhang, Y. Zhong, H. Xu, Z. Mao, B. Wang and X. Sui, RSC Adv., 2017, 7, 20147 DOI: 10.1039/C7RA00847C

This article is licensed under a Creative Commons Attribution 3.0 Unported Licence. You can use material from this article in other publications without requesting further permissions from the RSC, provided that the correct acknowledgement is given.

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