Journal of The Electrochemical Society,
Год журнала:
2024,
Номер
171(11), С. 117517 - 117517
Опубликована: Ноя. 1, 2024
A
simple
voltammetric
procedure
for
direct
determination
of
nitrites
in
natural
water
samples
is
described.
Measurements
are
carried
out
an
inert
medium
0.1
M
KCl.
The
based
on
the
oxidation
N(III)
to
N(V)
as
a
result
change
electrode
potential
from
+0.40
V
+0.96
V.
use
combined
consisting
approximately
800
gold
microelectrodes
enables
undisturbed
determinations
be
performed
presence
high
concentrations
organic
compounds
at
level
20
mg
l
−1
.
calibration
plot
NO
2
−
was
linear
range
×
10
−6
8
−4
with
detection
limit
6
−7
M.
proposed
successfully
applied
nitrate
three
passable
results.
Scientific Reports,
Год журнала:
2025,
Номер
15(1)
Опубликована: Март 17, 2025
Nanomaterials
including
zinc
oxide
(ZnO)
and
non-stoichiometric
(W18O49)
tungsten
can
be
applied
to
solve
the
challenge
related
optical
properties
of
nanomaterials
like
global
problems
water
treatment.
Therefore,
successful
syntheses
oxide-tungsten
nanocomposites
ZnWO4
nanostructures
are
reported
by
hydrothermal
method
using
different
masses
green
synthesized
ZnO
nanoparticles
(NPs).
The
pure
only
zinc,
tungsten,
oxygen
elements
observed
in
samples.
Alterations
NPs
mass
used
nanocomposite
synthesis
process
influence
nanocomposites'
structural,
morphological,
properties.
Different
morphologies
nanorods,
nanofibers,
cabbage-like
structures,
short
nanoflakes
formed
NPs.
photocatalytic
activities
evaluated
removing
methylene
blue
(MB-
10
ppm)
under
UV
irradiation
neutral
(pH
=
7)
acidic
5)
solutions.
Interestingly,
mg
ZW0.05
demonstrates
excellent
deterioration
MB
with
efficiencies
99%
91%
within
170
min
solutions,
respectively.
Furthermore,
quantity
catalyst
was
reduced
5
mg,
demonstrating
capacity
degrade
87%
(94%)
at
pH
7
5).
one
an
candidate
for
treatment
even
condition.
Scientific Reports,
Год журнала:
2025,
Номер
15(1)
Опубликована: Март 18, 2025
CMC/AAc/ZnO,
a
novel
antimicrobial
superabsorbent
hydrogel,
was
prepared
via
the
copolymerization
of
carboxymethyl
cellulose
(CMC)
and
acrylic
acid
(AAc)
by
incorporating
zinc
oxide
nanoparticles
through
gamma
radiation.
The
morphological
structural
properties
were
investigated
with
aid
characterization
techniques
such
as
scanning
electron
microscopy
(SEM),
Fourier-transform
infrared
(FT-IR),
energy
dispersive
X-ray
spectroscopy
(EDX),
diffraction
(XRD),
thermogravimetric
analysis
(TGA)
Differential
Scanning
Calorimetry
(DSC)
analysis.
In
addition,
swelling
behaviour
displayed
superior
pH-responsive
performance
in
distilled
water
than
saline
solutions.
XRD
confirmed
that
ZnO
present
crystalline
state
polymer
matrix.
EDX
mapping
also
used
to
study
elemental
distribution
ZnO,
carbon,
oxygen
nanocomposite.
TGA
provided
evidence
substantial
thermal
stability;
hence,
strength
material
could
be
very
efficient.
Besides,
highly
effective
antibacterial
property
CMC/AAc/ZnO
against
Escherichia
coli
is
different
assays,
leaching
nonleaching
tests.
Unlike
conventional
methods,
this
technique
avoids
need
for
chemical
crosslinkers
or
initiators,
radiation
induces
polymerization
incorporation
nanoparticles.
resulting
nanocomposite
exhibits
better
capacity,
stability,
activity
coli.
Such
make
it
promising
candidate
biomedical
environmental
applications.
This
research
emphasizes
great
possibilities
using
polymers
manifold
applications
opens
up
new
pathways
growth
eco-friendly
material.
Abstract
In
order
to
increase
the
performance
of
rice
husk‐derived
activated
carbon
(RHAC)
in
energy
storage
devices
such
as
supercapacitors
and
aluminum‐air
(Al‐air)
batteries,
this
study
explores
improvement
RHAC
using
atmospheric
air
plasma
treatment.
The
surface
features
electrochemical
properties
were
altered
through
Several
characterization
methods,
including
analysis,
FE‐SEM,
XRD,
FTIR,
Raman
spectroscopy,
revealed
significant
increases
area,
porosity,
functional
group
formation,
confirming
advantages
Following
treatment,
exhibited
considerable
enhancement
specific
capacitance,
reaching
1298
F
g⁻¹,
hydrophilicity,
with
contact
angle
decreasing
from
113°
67°.
By
combining
sustainable
materials
innovative
modification
techniques,
research
contributes
development
eco‐friendly
efficient
solutions.
