Constructing Environmental-Friendly "Oil-Diode" Janus Membrane for Oil/Water Separation

被引：156

作者：

Cheng, Xiquan ^{[1
,2
]}

Ye, Yanyan ^{[1
]}

Li, Zhixing ^{[1
]}

Chen, Xueying ^{[1
]}

Bai, Qing ^{[1
]}

Wang, Kai ^{[1
,2
]}

Zhang, Yingjie ^{[1
,2
]}

Drioli, Enrico ^{[2
,4
]}

Ma, Jun ^{[3
]}

机构：

[1] Harbin Inst Technol, Sch Marine Sci & Technol, State Key Lab Urban Water Resource & Environm SKL, Weihai 264209, Peoples R China

[2] Shandong Sino European Membrane Technol Res Inst, Weihai Key Lab Water Treatment & Membrane Technol, Weihai 264209, Peoples R China

[3] Harbin Inst Technol, Sch Environm, State Key Lab Urban Water Resource & Environm, Harbin 150090, Peoples R China

[4] Inst Membrane Technol ITM CNR, I-87036 Arcavacata Di Rende, CS, Italy

来源：

ACS NANO | 2022年 / 16卷 / 03期

基金：

中国博士后科学基金; 中国国家自然科学基金;

关键词：

environmental-friendly; oil-diode" Janus membranes; Laplace pressures; micronanostructure; oil/water separation; HIGH-EFFICIENCY; WATER; SURFACE; SUPEROLEOPHOBICITY; CONDENSATION; WETTABILITY; COLLECTION; ADHESIVE; FILMS;

D O I：

10.1021/acsnano.1c11388

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Oil leakage is a global environmental issue and happens frequently, resulting in a waste of oil resources and even threatening the safety of marine creatures and humans. Because of unidirectional oil transportation performance, "oil-diode" Janus membranes have attracted lots of attention for oil/water separation. However, the hydrophobic side of traditional "oil-diode" Janus membrane is completely hydrophobic, resulting in an easy permeation of oil, which hampers light oil recycling. Herein, we provide a facile approach to develop "oil-diode" Janus membranes with the special wettable structure for fast oil refining. The material characteristics and surface wettability of the membranes that generate superimposed efforts are vital to fabricate "oil-diode" Janus membranes. Interestingly, the manufactured membranes exhibit extra-high oil intrusion pressure up to 12 kPa and present high permeance of about 2993 L bar m(-2) h(-1) in separating stable water-in-oil emulsion containing surfactant and separation efficiency up to 99.6%, thereby showing promising potential in oil recovery and refining.

引用

页码：4684 / 4692

页数：9

共 54 条

[31] Multi-hydrophilic functional network enables porous membranes excellent anti-fouling performance for highly efficient water remediation [J].