Simultaneous electrospinning and spraying toward branch-like nanofibrous membranes functionalised with carboxylated MWCNTs for dye removal

被引：49

作者：

Shi, Jie ^{[1
]}

Wu, Tengfei ^{[1
]}

Teng, Kunyue ^{[1
]}

Wang, Wei ^{[1
]}

Shan, Mingjing ^{[1
]}

Xu, Zhiwei ^{[1
]}

Lv, Hanming ^{[1
]}

Deng, Hui ^{[1
]}

机构：

[1] Tianjin Polytech Univ, Sch Text, State Key Lab Separat Membranes & Membrane Proc, Tianjin 300387, Peoples R China

来源：

MATERIALS LETTERS | 2016年 / 166卷

基金：

中国国家自然科学基金;

关键词：

Carbon nanotubes; Polymeric composites; Electrospinning; Spraying; Branch-like structure; Dye removal; COMPOSITE MEMBRANE; WATER;

D O I：

10.1016/j.matlet.2015.12.024

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Branch-like carboxylated MWCNTs (f-MWCNTs)/Chitosan (CS) nanofibrous membranes were developed based on the simultaneous electrospinning of CS fibers and spraying (high-pressure-assisted spraying or electrospraying) of f-MWCNTs nanoparticles, thus highlighting new avenues to the development of composite membranes with multilevel structures and added functionalities. Compared with pristine CS and blending f-MWCNTs/CS nanofibrous membranes which was directly electrospun from f-MWCNTs/CS blends, the as-prepared branch-like nanofibrous membranes at the thickness of only 30 mu m displayed significantly improved rejection (improved about 161-166% and 80-90%, respectively) toward both methylene blue and methyl orange, yet attaining high water flux (3543.50 and 3757.36 L/m(2) h, respectively) at a low pressure of 0.2 bar. Therefore, the simultaneous electrospinning and spraying process has opened up an innovative alternative for the fabrication of structured membranes rather than using blending process in wastewater treatment. (C) 2015 Elsevier B.V. All rights reserved.

引用

页码：26 / 29

页数：4

共 13 条

[1] Performance improvements in structural characteristics of chitosan-based nanofibrous composite membrane for using in liquid filtration [J].