Journal of Physics Communications,
Год журнала:
2024,
Номер
8(5), С. 055004 - 055004
Опубликована: Май 1, 2024
Abstract
In
this
study,
polymer
nanocomposite
based
on
polyvinylpyrrolidone
(PVP),
polyvinyl
alcohol
(PVA),
and
silver
nitrate
(AgNO
3
)
has
been
prepared
through
chemical
reduction
rate
casting
method
for
varying
concentrations
of
AgNO
.
The
PVP/PVA
blend
consisted
0.6
wt%
PVP
0.4
PVA.
Following
that,
nanocomposites
were
by
incorporating
different
(0,
10,
20,
30,
40,
50
wt%)
into
the
blend.
effects
AgNO3
structural
optical
properties
investigated
using
x-ray
diffraction
(XRD)
UV–vis
absorption
spectroscopy.
XRD
analysis
demonstrated
that
increasing
concentration
results
in
a
decrease
degree
crystallinity
from
53.73
to
15.77
containing
absorbance
spectra
examined
determine
such
as
coefficient,
edge,
band
gap,
tails
localized
states.
revealed
increase
caused
edge
alongside
an
Urbach
energy.
The
synthesis
of
nanoparticles
using
environmentally
friendly
methods
for
applications
in
fields
such
as
food
packaging
and
biomedicine
has
been
gaining
increasing
attention.
Organic–inorganic
nanostructures
offer
opportunities
to
create
innovative
materials
suitable
use
optoelectronics
biological
applications.
In
this
study,
we
focused
on
producing
nanocomposite
films
by
blending
carboxymethyl
cellulose
(CMC)
chitosan
(CS)
polymers
equal
proportions
(50/50
wt
%)
adding
silver
(Ag
NPs)
through
a
solution
casting
process.
Our
objective
was
examine
how
the
introduction
Ag
NPs
influenced
structural,
optical,
mechanical,
electrical,
antibacterial
properties
virgin
CMC/CS
composites.
XRD
patterns
prepared
samples
indicated
presence
crystalline
phases
within
blend.
FT-IR
spectroscopy
showed
primary
vibrational
peaks
associated
with
CMC
CS,
which
exhibited
reduced
intensity
after
addition
NPs.
UV
absorption
nanocomposites
gradual
increase
shift
toward
longer
wavelengths.
electrical
are
enhanced
higher
concentrations
An
content
resulted
corresponding
enhancement
activity
against
both
Staphylococcus
aureus
Escherichia
coli.
CMC/CS-Ag-doped
demonstrated
significant
enhancements
Young's
modulus
(Y),
tensile
stress
(σt),
elongation
at
break
(εB).
These
findings
suggest
that
these
hold
promise
potential
fields.
Polymers,
Год журнала:
2025,
Номер
17(6), С. 818 - 818
Опубликована: Март 20, 2025
The
optical
and
radiation
shielding
of
PVA
have
been
enhanced
through
embedding
with
ZnO/CuO/SWCNT
(ZCS)
nanocomposites.
ZCS
polymeric
nanocomposites
(PNCs)
were
prepared
the
solution
casting
method.
Scanning
electron,
microscopy
FT-IR
procedures
performed
to
examine
surfaces’
morphology
structures’
modifications.
UV–visible
measurements
carried
out
investigate
linear/nonlinear
properties.
investigations
show
significant
alterations
in
parameters
due
embedding.
analysis
shows
that
parameters,
including
transmittance,
energy
bandgap,
refractive
index,
dielectric
constants
conductivity
PVA,
are
tuned
direct
indirect
bandgap
shrank
from
5.42
eV
4.99
(neat
PVA)
3.20
2.26
(10
wt.%
PNCs).
nonlinear
(NLO)
(first
order
susceptibility
(χ(1)),
third
(χ(3))
index
(n2))
improved.
Phy-X/PSD
software
was
used
all
samples.
linear
attenuation
coefficient
(LAC),
mean
free
path
(MFP),
half
value
layer
(HVL),
tenth
(TVL)
effective
atomic
number
(Zeff)
It
is
found
mass
(MAC)
neat
increased
1.14
cm2/g
7.96
at
0.015
MeV.
HVL
decreased
30.2
cm
20.6
cm,
TVL
100.3
68.5
MFP
43.6
29.8
upon
10
NCs
15
samples’
exposure
buildup
factor
(EBF)
absorption
(EABF)
photon
range
MeV
0.5
40
values.
This
study
proves
PNCs
advantageous
for
applications
fields.
