Journal of Applied Polymer Science,
Journal Year:
2024,
Volume and Issue:
142(11)
Published: Dec. 17, 2024
ABSTRACT
Oily
water
negatively
affects
both
land
and
marine
ecosystems.
To
combat
this,
membrane
production
can
effectively
treat
oil
waste
recycle
over
90%
of
it.
This
study
compares
the
influence
SiO
2
nanoparticles
on
rejection
in
two
types
membranes:
polyvinylidene
fluoride
(PVDF)
polysulfone
(PSF).
The
NPs
are
characterized
by
FTIR,
SEM
analysis,
zeta
potential
measurements.
embedded
PSF
PVDF
membranes
were
contact
angle,
permeability,
measurements,
recycling
experiments.
results
experiments
showed
that
reached
maximum
values
92.2%
for
wt%
PSF/SiO
,
94.1%
PVDF/SiO
membranes.
experimental
demonstrate
incorporation
SiO₂
enhances
efficiency
distinct
types,
exhibiting
notable
performance
disparities
contingent
selected
material.
methodology
achieves
a
rate
waste,
signifying
substantial
advancement
environmental
protection
sustainable
development.
Consequently,
technique
is
regarded
as
an
efficacious
approach
management
waste.
Water,
Journal Year:
2025,
Volume and Issue:
17(2), P. 254 - 254
Published: Jan. 17, 2025
Stimuli-responsive
polysulfone
(PSf)
ultrafiltration
(UF)
membrane
was
developed
via
surface
modification
with
tethered
hydrophilic
polyacrylic
acid
(PAA)
chains
of
length
greater
than
the
native
pore
size.
The
nano-structured
(SNS)
synthesized
atmospheric
pressure
plasma-induced
graft
polymerization
(APPIGP)
to
form
a
PAA
brush
layer.
SNS-PAA-PSf
UF
demonstrated
hydraulic
permeability
and
selectivity
in
ranges
0.74–2.29
×
1013
m−1
1.8–15.0
kDa,
respectively,
response
changes
pH
(3–11)
ionic
strength
(~0.02–547
mM).
Membrane
performance
characterization
showed
that,
for
above
salinity,
can
overcome
typical
perm-selectivity
tradeoff.
is
attributed
swelling
chains,
upon
decrease
or
increase,
which
provides
less
hindered
transmembrane
solute
transport
path,
but
increased
resistance.
Conversely,
at
high
stress
low
chain
collapse
leads
lower
molecular
weight
cutoff
(MWCO)
resistance
below
that
swollen
state.
study
results
suggest
there
merit
further
tailoring
improving
stimuli-responsive
membranes,
APPIGP,
applications
over
selected
strength.
Journal of Applied Polymer Science,
Journal Year:
2025,
Volume and Issue:
unknown
Published: April 13, 2025
ABSTRACT
To
develop
high‐performance
antifouling
ultrafiltration
membrane
materials,
a
novel
poly(aryl
ether
oxadiazole)
(PAEO)
was
designed
and
prepared.
Subsequently,
modified
containing
phenolic
hydroxyl
groups
(PAEO‐OH)
further
synthesized
by
reacting
the
oxadiazole
ring
with
amino
group
at
high
temperature.
The
introduction
of
in
PAEO‐OH
enhanced
its
hydrophilicity
increased
pure
water
flux
compared
to
3‐PAEO
membrane,
while
maintaining
rejection
ratio
exceeding
90%.
performance
3‐PAEO‐OH
evaluated
using
three‐cycle
experiment,
which
showed
over
90%
reversible
fouling
more
than
80%
recovery,
highlighting
excellent
characteristics.
Additionally,
separation
prepared
varying
PVP
content,
analyzed.
results
revealed
that
optimal
achieved
content
4.5
wt.%.
In
conclusion,
demonstrates
significant
potential
for
various
applications
industrial
purification
processes.
