Boosting Dielectric Properties of Polyethersulfone Membranes: A Strategy Using Cross-Linked Graphene Oxide/EDTA/Silane
ECS Journal of Solid State Science and Technology,
Год журнала:
2025,
Номер
14(3), С. 031007 - 031007
Опубликована: Март 1, 2025
We
investigated
development
and
characterization
of
composite
membranes
based
on
grafted
graphene
oxide
(GO)
with
ethylenediamine
tetraacetic
acid
(EDTA)/silane
loaded
onto
polyethersulfone
(PES)
for
dielectric
applications.
Fourier
transform
infrared
analysis
confirmed
the
presence
oxygen-containing
groups
GO
introduction
new
peaks
corresponding
to
EDTA/silane
in
membrane.
X-ray
diffraction
revealed
a
shift
peaks,
indicating
successful
modification.
Raman
spectroscopy
showed
an
increase
defect
ratio
(ID/IG)
after
modification,
suggesting
interaction
between
GO.
Transmission
electron
microscopy
is
expected
show
morphological
changes
upon
incorporation
EDTA/silane.
Scanning
PES
change
surface
morphology
from
smooth
small
pores
non-smooth
addition
GO/EDTA/silane.
UV–vis
indicated
red
absorption
peak
GO/EDTA/silane
compared
GO,
decrease
oxygenated
groups.
Dielectric
properties
measurements
demonstrated
enhanced
permittivity
improved
polarization
response
containing
pristine
The
constant
at
1
kHz
2.42
increased
gradually
4.82
15%
GO/EDTA/Silane-doped
composition.
This
improvement
attributed
conductive
network,
high
area,
functional
within
Язык: Английский
Novel colored hydroxypropyl methyl cellulose/ magnetite carbon dots films for beef packaging with DFT calculations and molecular docking study
Scientific Reports,
Год журнала:
2025,
Номер
15(1)
Опубликована: Март 25, 2025
Abstract
This
study
investigates
the
preparation
and
characterization
of
a
novel
HPMC-MCDs
(Hydroxypropyl
methylcellulose-magnetite
carbon
dots)
composite
film
for
potential
applications
in
food
safety
monitoring.
While
dots
(CDs)
offer
promising
sensing
capabilities,
their
inherent
lack
color
limits
direct
visual
detection,
limitation
addressed
this
work
by
incorporating
magnetite
(Fe
3
O
4
)
to
create
visually
discernible
sensor.
Characterization
techniques,
including
XRD,
FTIR,
SEM,
confirmed
successful
integration
MCDs
within
HPMC
matrix.
The
incorporation
significantly
reduced
film’s
surface
roughness.
exhibited
remarkably
smooth
surface.
DFT
calculations
revealed
enhanced
stability
composite.
Fluorescence
studies
demonstrated
change
upon
interaction
with
Salmonella
enterica
B.
cereus
,
suggesting
bacterial
detection.
Furthermore,
pH-sensitive
behavior,
changing
response
pH
variations,
making
it
candidate
monitoring
beef
meat
spoilage.
These
findings
suggest
that
have
serve
as
multifunctional
platform
applications.
Язык: Английский