Smart nonwoven fabric with reversibly dual-stimuli responsive wettability for intelligent oil-water separation and pollutants removal

被引：86

作者：

Wang, Duan-Chao ^{[1
]}

Yang, Xiaogang ^{[1
]}

Yu, Hou-Yong ^{[1
,2
,3
]}

Gu, Jiping ^{[1
]}

Qi, Dongming ^{[1
]}

Yao, Juming ^{[1
]}

Ni, Qingqing ^{[1
,4
]}

机构：

[1] Zhejiang Sci Tech Univ, Coll Mat & Text, Xiasha Higher Educ Pk,Ave 2 928, Hangzhou 310018, Zhejiang, Peoples R China

[2] Donghua Univ, Coll Mat Sci & Engn, State Key Lab Modificat Chem Fibers & Polymer Mat, Shanghai 201620, Peoples R China

[3] Univ Waterloo, Waterloo Inst Nanotechnol, Dept Chem Engn, 200 Univ Ave West, Waterloo, ON, Canada

[4] Shinshu Univ, Dept Mech Engn & Robot, Ueda, Nagano 3868576, Japan

来源：

JOURNAL OF HAZARDOUS MATERIALS | 2020年 / 383卷

关键词：

Cellulose nanocrystals; Polymer brush; Zinc oxide nanohybrids; Modulation; Photocatalytic degradation; ADSORPTION; HYDROGELS; CU(II); SUPERHYDROPHOBICITY; PHOTOCATALYST; PERFORMANCE; POLYMERS; ADHESION;

D O I：

10.1016/j.jhazmat.2019.121123

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

This work presents the first fabrication of smart nonwoven fabric (DSR-CZPP) with extraordinary reversible double-stimulus responsive wettability, where carboxyl groups of cellulose nanocrystals/zinc oxide (CNC/ZnO) nanohybrids deposited on fabric surface can bond with hydroxyl group of the PDMAEMA-b-PHEMA-b-PMAAAB triblock polymer brushes that was prepared by using methyl methacrylate (HEMA), dimethylaminoethyl methacrylate (DMAEMA) and methacrylarnide-azobenzene monomer (MAAAB) via reversible addition-fragmentation chain transfer (RAFT). The peculiar reversible double-stimulus responsive wettability of the DSR-CZPP can be modulated by triggering hydrophilic/hydrophobic transitions and lipophilic./oleophobic transitions under dual-stimulations of pH and UV light irradiation. The special molecular structure of the triblock polymer brushes enabled DSR-CZPP to intelligent modulation of oil-water separation under the control of ''UV & pH double switch", meanwhile CNC/ZnO simultaneously can induce the photocatalytic degradation of organic dyes. Moreover, DSR-CZPP can have high removal ratios of various pollutants, such as metal ion (Cu2+) and toxic organic solvent (silicone oil, acetone and chloroform). This smart and multifunctional fabric shows great potentials for treating complicated polluted water from most industrial fields.

引用

页数：11

共 46 条

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