Metal-organic framework modified hydrophilic polyvinylidene fluoride porous membrane for efficient degerming selective oil/water emulsion separation
نویسندگان
چکیده
Abstract Developing a new type of superhydrophilic/underwater superoleophobic oil/water separation membrane with high efficiency, throughput and bacteria has essential theoretical practical significance for treating oily medical wastewater. This work modified commercial PVDF membranes by knife coating cross-linking, PVDF/PVA/LPB/MOF hybrid are manufactured. Hydrophilic polyvinyl alcohol (PVA) endows the good hydrophilicity. Lauramidopropyl Betaine (LPB) enhances intermolecular hydrogen bonding improves mechanical properties membrane. A Metal-organic framework (MOF) excellent biocompatibility, UiO-66-NH 2 , plays vital role in bacteria. The results morphology surface chemistry characterization analysis show that exhibits superhydrophilicity (with contact angle 2°) high-water flux (15600 L/m h) efficiency (99%), nature filtering while separating oil. After modification, increased from 30% to 99%, showing strong oil stain resistance. Our finding suggests super-hydrophilic/underwater potential value applications.
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ژورنال
عنوان ژورنال: npj clean water
سال: 2022
ISSN: ['2059-7037']
DOI: https://doi.org/10.1038/s41545-022-00168-z