Electrospun Silica-Polyacrylonitrile Nanohybrids for Water Treatments

In this work, the removal of NOM (natural organic matter) as represented by humic acid by means of electrospun nanofiber adsorptive membranes (ENAMs) is described. Polyacrylonitrile (PAN) was used for the preparation of ENAMs incorporating silica nanoparticles as adsorbents. The addition of silica t...

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Bibliographic Details
Published in:Membranes (Basel) 2023-01, Vol.13 (1), p.72
Main Authors: Malczewska, Beata, Lochyński, Paweł, Charazińska, Sylwia, Sikora, Andrzej, Farnood, Ramin
Format: Article
Language:English
Subjects:
Addition polymerization
Adsorptivity
Contact angle
electrospinning
Fibers
Humic acids
Membrane permeability
Membranes
Molecular weight
Morphology
nanofiber
Nanofibers
Nanoparticles
Organic matter
PAN
Polyacrylonitrile
Polymer blends
Polymers
Silica
Silicon dioxide
Topography
Viscosity
Water treatment
X ray photoelectron spectroscopy
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Summary:In this work, the removal of NOM (natural organic matter) as represented by humic acid by means of electrospun nanofiber adsorptive membranes (ENAMs) is described. Polyacrylonitrile (PAN) was used for the preparation of ENAMs incorporating silica nanoparticles as adsorbents. The addition of silica to the polymer left visible changes on the structural morphology and fibers' properties of the membrane. The membrane samples were characterized by pure water permeability, contact angle measurement, SEM, XPS, and XRD. This study assesses the preliminary performance of PAN-Si membranes for the removal of natural organic matter (NOM). The membrane rejected the humic acid, a surrogate of NOM, from 69.57% to 87.5%.
ISSN:2077-0375
2077-0375
DOI:10.3390/membranes13010072