Janus channel of membranes enables concurrent oil and water recovery from emulsions

被引：30

作者：

Guo, Xin-Yu ^{[1
,2
,3
]}

Zhao, Lei ^{[4
]}

Li, Hao-Nan ^{[1
,2
,3
]}

Yang, Hao-Cheng ^{[1
,2
,3
]}

Wu, Jian ^{[5
]}

Liang, Hong-Qing ^{[1
,2
,3
]}

Zhang, Chao ^{[1
,2
,3
]}

Xu, Zhi-Kang ^{[1
,2
,3
,6
]}

机构：

[1] Zhejiang Univ, Dept Polymer Sci & Engn, MOE Key Lab Macromol Synth & Functionalizat, Hangzhou 310058, Peoples R China

[2] Zhejiang Univ, Key Lab Adsorpt & Separat Mat & Technol Zhejiang P, Hangzhou 310027, Peoples R China

[3] Zhejiang Univ, Int Res Ctr X Polymers, Belt & Rd Sino Portugal Joint Lab Adv Mat, Hangzhou 310058, Peoples R China

[4] Dalian Univ Technol, State Key Lab High Performance Precis Mfg, Dalian 116024, Peoples R China

[5] Zhejiang Univ, Dept Chem, Hangzhou 310058, Peoples R China

[6] Zhejiang Univ, Inst Marine Chem & Environm, Ocean Coll, Zhoushan 316000, Peoples R China

来源：

SCIENCE | 2024年 / 386卷 / 6722期

基金：

中国国家自然科学基金;

关键词：

EFFICIENT SEPARATION; MICROFILTRATION;

D O I：

10.1126/science.adq6329

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

Existing separation technologies struggle to recover oil and water concurrently from surfactant-stabilized emulsions to achieve the goal of near-zero liquid discharge. We present a Janus channel of membranes (JCM) that features a confined architecture constructed of a pair of hydrophilic and hydrophobic membranes, which allows for concurrent, highly efficient recovery of oil and water from surfactant-stabilized emulsions. The confined Janus channel can amplify the interplay of the membrane pair through a feedback loop that involves enrichment and demulsification. Our JCM achieves exceptional oil and water recoveries of up to 97 and 75%, respectively, with near 99.9% purities. Moreover, its versatility in handling diverse emulsions may enable near-zero liquid discharge for a range of separations.

引用

页码：654 / 659

页数：6

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