Journal
JOURNAL OF MEMBRANE SCIENCE
Volume 644, Issue -, Pages -Publisher
ELSEVIER
DOI: 10.1016/j.memsci.2021.120093
Keywords
NH2-MIL-88B; Quartz fibrous membrane; Antifouling; Fenton catalytic; Emulsion separation
Categories
Funding
- National Natural Science Foundation of China [22078132, 21822807, 21878026, 11872001]
- Natural Science Foundation of Anhui Province [2108085QE205]
- Natural Science Research Projects of Anhui Universities [KJ2020A0305]
- Introduction of Talent Research Start-up Fund of Anhui University of Science and Technology [13200406]
- Innovation Training Program for College Students [S202110361151]
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Researchers developed a robust antifouling membrane, NM88B@QFM, for efficient oil-water emulsion separation with excellent self-cleaning ability and gravity-driven performance. The membrane showed high separation efficiency and good antifouling properties, making it a promising candidate for long-lasting oil-water separation.
Here, a robust antifouling NH2-MIL-88B coated quartz fibrous membrane (NM88B@QFM) was developed for efficient oil-water emulsion separation via a one-step solvothermal method. The effects of NM88B precursor concentration on the morphology and surface wettability of the membranes were investigated. The prepared NM88B@QFM showed good photo-Fenton self-cleaning ability and superhydrophilicity/underwater superoleophobicity with water contact angle and underwater oil contact angle of 0 degrees and 161.3 degrees, respectively. The NM88B@QFM exhibited high separation efficiencies and high permeation fluxes (up to 99.4% and above 350 L m(-2) h(-1), respectively for a series of surfactant-stabilized oil-in-water emulsions under solely gravity-driven separation. Moreover, the NM88B@QFM showed good antifouling self-cleaning ability because Fenton-like catalytic NM88B can degrade the foulant on the membrane surface, enabling it to maintain its performance over many separation cycles. In view of the advantages of NM88B@QFM such as high separation efficiency, excellent self-cleaning and gravity self-driven performance, this type of membrane appears to be a promising candidate for low energy input, long-lasting oil-water separation.
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