International Journal of Polymer Science,
Journal Year:
2025,
Volume and Issue:
2025(1)
Published: Jan. 1, 2025
Polycyclic
aromatic
hydrocarbons
(PAHs)
persist
as
organic
contaminants
within
diverse
water
reservoirs,
posing
significant
environmental
and
health
risks.
Nanofiltration
(NF)
membranes
have
emerged
effective
tools
for
PAHs
removal
owing
to
their
ability
separate
based
on
size.
However,
membrane
fouling
limited
rejection
efficiency
remain
challenges.
This
study
developed
a
novel
gradient
cross‐linking
graphene
oxide
(GO)–integrated
polyvinylpyrrolidone
(PVP)
NF
enhance
while
mitigating
issues.
The
approach
GO
integration
are
aimed
at
improving
the
membrane’s
performance,
stability,
antifouling
properties.
Fourier
transform
spectroscopy
spectra
of
GO‐PVP
showed
new
peaks,
indicating
linkage.
flux
increased
with
concentration
due
hydrophilicity;
however,
decreased
loading
0.5
wt%
poor
distribution.
results
exhibited
higher
72.9
±
2.9
L
m
−2
h
−1
,
obtained
0.4
loading.
Salt
development
large
pores;
hence,
there
is
always
trade‐off
between
salt
rejection.
presents
promising
efficiently
removing
from
sources.
has
potential
be
applied
in
various
treatment
applications,
contributing
improved
quality
protection.
Science,
Journal Year:
2023,
Volume and Issue:
382(6667), P. 202 - 206
Published: Oct. 12, 2023
Existing
polyamide
(PA)
membrane
synthesis
protocols
are
underpinned
by
controlling
diffusion-dominant
liquid-phase
reactions
that
yield
subpar
spatial
architectures
and
ionization
behavior.
We
report
an
ice-confined
interfacial
polymerization
strategy
to
enable
the
effective
kinetic
control
of
reaction
thermodynamic
manipulation
hexagonal
polytype
(Ih)
ice
phase
containing
monomers
rationally
synthesize
a
three-dimensional
quasilayered
PA
for
nanofiltration.
Experiments
molecular
simulations
confirmed
underlying
formation
mechanism.
Our
nanofiltration
features
high-density
ionized
structure
exceptional
transport
channels,
realizing
superior
water
permeance
excellent
ion
selectivity.
Advanced Materials,
Journal Year:
2023,
Volume and Issue:
36(9)
Published: Oct. 31, 2023
Abstract
Polyester
nanofiltration
membranes
highlight
beneficial
chlorine
resistance,
but
their
loose
structures
and
negative
charge
result
in
poor
cations
retention
precluding
advanced
use
separation.
This
work
designs
a
new
monomer
(TET)
containing
“hydroxyl‐ammonium”
entities
that
confer
dense
positive
to
polyester
membranes.
The
TET
undergoes
efficient
interfacial
polymerization
with
the
trimesoyl
chloride
(TMC)
monomer,
resultant
TET‐TMC
feature
one
of
lowest
molecular
weight
cut‐offs
(389
Da)
highest
zeta
potential
(4
mv,
pH:
7)
among
all
MgCl
2
rejection
membrane
is
95.5%,
significantly
higher
than
state‐of‐the‐art
(<50%).
Li
+
/Mg
2+
separation
performance
on
par
cutting‐edge
polyamide
membranes,
while
additionally,
stable
against
NaClO
though
readily
degrade.
Thus
first
for
Science Advances,
Journal Year:
2023,
Volume and Issue:
9(18)
Published: May 3, 2023
Interfacial
polymerization
(IP)
and
self-assembly
are
two
thermodynamically
different
processes
involving
an
interface
in
their
systems.
When
the
systems
incorporated,
will
exhibit
extraordinary
characteristics
generate
structural
morphological
transformation.
In
this
work,
ultrapermeable
polyamide
(PA)
reverse
osmosis
(RO)
membrane
with
crumpled
surface
morphology
enlarged
free
volume
was
fabricated
via
IP
reaction
introduction
of
self-assembled
surfactant
micellar
system.
The
mechanisms
formation
nanostructures
were
elucidated
multiscale
simulations.
electrostatic
interactions
among
Chemical Society Reviews,
Journal Year:
2024,
Volume and Issue:
53(9), P. 4374 - 4399
Published: Jan. 1, 2024
This
review
details
the
design
and
creation
of
ultrathin
polyamide
membranes
with
significant
enhancement
in
water
permeance
along
limitations
potential
strategies
to
empower
their
efficacy
ionic
molecular
separations.
Environmental Science & Technology,
Journal Year:
2024,
Volume and Issue:
58(11), P. 5174 - 5185
Published: March 7, 2024
Nanofiltration
(NF)
has
the
potential
to
achieve
precise
ion–ion
separation
at
subnanometer
scale,
which
is
necessary
for
resource
recovery
and
a
circular
water
economy.
Fabricating
NF
membranes
selective
ion
highly
desirable
but
represents
substantial
technical
challenge.
Dipole–dipole
interaction
mechanism
of
intermolecular
attractions
between
polar
molecules
with
dipole
moment
due
uneven
charge
distribution,
such
an
not
been
leveraged
tune
membrane
structure
selectivity.
Herein,
we
propose
novel
strategy
tunable
surface
polyamide
by
introducing
solvent
large
during
interfacial
polymerization,
in
dipole–dipole
acyl
chloride
groups
trimesoyl
(TMC)
can
successfully
intervene
amidation
reaction
alter
density
carboxyl
layer.
As
result,
prepared
positively
charged
(PEI-TMC)-NH2
negatively
(PEI-TMC)-COOH
composite
membranes,
show
similarly
high
permeance,
demonstrate
separations
cations
anions
engineering
applications,
respectively.
Our
findings,
first
time,
confirm
that
solvent-induced
interactions
are
able
type
efficient
separation.
Journal of Materials Chemistry A,
Journal Year:
2024,
Volume and Issue:
12(14), P. 7975 - 8013
Published: Jan. 1, 2024
Metal/covalent
organic
frameworks
(MOFs/COFs),
with
orderly
aligned
pores
and
adjustable
pore
characteristics,
offer
advantages
over
traditional
fillers
in
constructing
thin
film
nanocomposite
(TFN)
membranes
for
task-specific
separations.
