Journal
ACS NANO
Volume 12, Issue 10, Pages 10000-10007Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acsnano.8b04328
Keywords
hydrophobicity; oleophilicity; nanostructure; microporous membrane; extraction chemistry; multiphase complex system
Categories
Funding
- National Research Fund for Fundamental Key Projects [2017YFA0204504]
- National Natural Science Foundation [21722309, 21671194]
- 111 Project [B14009]
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Liquid-phase extraction is widely used in the chemical industry. Traditional extracting routes always involve multiple procedures, need a large floor space, and have long operating time. Continuous in situ extraction that can conduct a real-time integration of solutes extraction and solvents separation simultaneously would be of great significance. Superwettable materials offer us a good choice to separate different immiscible solvents; herein, we achieve continuous in situ extraction of multiphase complex systems by using a porous polytetrafluoroethylene membrane with nanostructure-induced superwettability. It realizes a rapid, selective, and efficient real-time removal of various extracting agents during a continuous process due to their wetting differences. Compared with traditional extraction, our route shows a distinct superiority on saving operating time, enhancing liquid recovery, and simplifying procedures, while still retaining high extracting performance. In addition, our membrane possesses excellent durability even after long-term work in harsh chemical environments or under strong mechanical impacts. Thus, we believe that it will provide a potential alternative for current industrial extractions.
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