Chitosan-Functionalized Recycled Polyethylene Terephthalate Nanofibrous Membrane for Sustainable On-Demand Oil-Water Separation

被引：25

作者：

Baggio, Andrea ^{[1
,2
]}

Doan, Hoan N. ^{[3
]}

Vo, Phu P. ^{[3
]}

Kinashi, Kenji ^{[4
]}

Sakai, Wataru ^{[4
]}

Tsutsumi, Naoto ^{[4
]}

Fuse, Yasuro ^{[5
]}

Sangermano, Marco ^{[6
]}

机构：

[1] Kyoto Inst Technol, Masters Program Innovat Mat, Sakyo Ku, Kyoto 6068585, Japan

[2] Politecn Torino, Masters Program Mat Engn, Corso Duca Abruzzi 24, I-10129 Turin, Italy

[3] Kyoto Inst Technol, Doctors Program Mat Chem, Sakyo Ku, Kyoto 6068585, Japan

[4] Kyoto Inst Technol, Fac Mat Sci & Engn, Sakyo Ku, Kyoto 6068585, Japan

[5] Kyoto Inst Technol, Ctr Environm Sci, Sakyo Ku, Kyoto 6068585, Japan

[6] Politecn Torino, Dept Appl Sci & Technol DISAT, Corso Duca Abruzzi 24, I-10129 Turin, Italy

来源：

GLOBAL CHALLENGES | 2021年 / 5卷 / 04期

关键词：

chitosan; electrospinning; oil-water separation; polyethylene terephthalate; waste recycling; OIL/WATER SEPARATION; POLYSTYRENE FIBERS; WETTABILITY; REMOVAL; SMART;

D O I：

10.1002/gch2.202000107

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：

The preservation of marine ecosystems is one of the most severe challenges at present. In particular, oil-water separation from oil spills and oily wastewater is important. For this reason, a low-cost, effective, and sustainable polymeric solution is in high demand. In this work, a controlled-wettability membrane for selective separation of oil-water mixtures and emulsions is developed. The nanofibrous membrane is prepared via a facile and cost-effective electrospinning technique using environmentally sustainable materials, such as recycled polyethylene terephthalate and chitosan. The effect of different concentrations of chitosan on the morphology, chemical composition, mechanical properties, wettability, and separation performance of the membrane is evaluated. The membranes exhibited underoil superhydrophobic and underwater superoleophobic behavior, which is essential to perform the selective separation. In fact, the designed filter has competitive antifouling properties (oil intrusion pressure > 45 kPa) and showed high heavy- and light-oil/water separation efficiencies (>95%) both for emulsions and immiscible mixtures.

引用

页数：10

共 49 条

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