Chitosan‐Functionalized Recycled Polyethylene Terephthalate Nanofibrous Membrane for Sustainable On‐Demand Oil‐Water Separation
| Autor: | Marco Sangermano, Phu Phong Vo, Yasuro Fuse, Hoan Ngoc Doan, Wataru Sakai, Andrea Baggio, Naoto Tsutsumi, Kenji Kinashi |
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| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
Technology
Materials science polymeric membranes oil-water separation chitosan oil‐water separation Chitosan Biofouling chemistry.chemical_compound polyethylene terephthalate waste recycling Polyethylene terephthalate GE1-350 Chemical composition electrospinning Full Paper polymeric membranes oil-water separation Full Papers Electrospinning Filter (aquarium) Environmental sciences Membrane chemistry Chemical engineering Wetting chitosan |
| Zdroj: | Global Challenges, Vol 5, Iss 4, Pp n/a-n/a (2021) Global Challenges |
| Popis: | 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. Controlled‐wettability membranes for selective separation of oil‐water mixtures and emulsions are fabricated using environmentally sustainable recycled polyethylene terephthalate (r‐PET) and chitosan based electrospun nanofibers. |
| Databáze: | OpenAIRE |
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