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Spraying-induced growth of CaCO for the modification of membranes for oil/water separation
Ist Teil von
New journal of chemistry, 2024-02, Vol.48 (9), p.3785-3788
Erscheinungsjahr
2024
Quelle
Alma/SFX Local Collection
Beschreibungen/Notizen
Here, a simple spraying-induced
in situ
growth of inorganic particles strategy was adopted to fabricate composite membranes. Sodium alginate was first sprayed on a polyvinylidene fluoride membrane to provide active sites, and subsequently, alternate spraying of Ca
2+
and CO
3
2−
induced
in situ
growth of CaCO
3
particles to construct hierarchical structures. The optimal membrane exhibited superhydrophilicity/underwater superoleophobicity. The membrane has good oil-water separation efficiency (>99%) and high flux (>2238 L m
−2
h
−1
) for several oil-water emulsions. Importantly, the membrane retained acceptable separation performance even after 10 cycles, proving its good mechanical stability and anti-fouling features. The current work may open up a new avenue for the large-scale fabrication of super-wetting membranes for oily wastewater remediation.
A simple spraying-induced
in situ
growth of inorganic particles was proposed for the first time and a PVDF@SA@CaCO
3
membrane was successfully constructed for efficient oil/water separation.
Sprache
–
Identifikatoren
ISSN: 1144-0546
eISSN: 1369-9261
DOI: 10.1039/d4nj00008k
Titel-ID: cdi_rsc_primary_d4nj00008k
Format
–
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