Ternary nanocomposites of ZnFe2O4/NiFe2O4/CeO2: Investigating electrochemical energy storage and biocompatible properties
Journal of environmental chemical engineering,
Год журнала:
2024,
Номер
12(5), С. 113337 - 113337
Опубликована: Июнь 16, 2024
Язык: Английский
High-efficiency dye-sensitized solar cell based on carbon nanotubes-modified molybdenum nitride nanoparticles counter electrode
Solar Energy,
Год журнала:
2025,
Номер
291, С. 113394 - 113394
Опубликована: Март 4, 2025
Язык: Английский
Fabrication of ternary zinc-nickel-copper oxide microsphere nanocomposite photoanode material for boosting dye-sensitized solar cell efficiency
Journal of Alloys and Compounds,
Год журнала:
2024,
Номер
1000, С. 175039 - 175039
Опубликована: Май 31, 2024
Язык: Английский
Recycling waste for energy: Reusing methyl orange dye-adsorbed polythiophene/Fe3O4 nanorods/reduced graphene oxide nanocomposite as a supercapacitor electrode
Journal of Science Advanced Materials and Devices,
Год журнала:
2025,
Номер
unknown, С. 100865 - 100865
Опубликована: Фев. 1, 2025
Язык: Английский
Synthesis and Characterization of Nickel Oxide Nanoparticles via Polyol‐Mediated Hydrothermal Process with Antibacterial Properties
ChemistrySelect,
Год журнала:
2025,
Номер
10(9)
Опубликована: Фев. 28, 2025
Abstract
Nickel
oxide
nanoparticles
(NiO
NPs)
synthesized
with
polyvinylpyrrolidone
(PVP)
demonstrate
promising
antimicrobial
properties
for
biomedical
applications.
NiO
NPs
were
using
PVP
stabilizers
of
varying
molecular
weights:
K10
(average
MW
10,000
dalton),
K15
15,000
and
K40
40,000
employing
a
hydrothermal
method.
The
PVP10K
exhibited
smaller
particle
sizes
ranging
from
30
to
40
nm
larger
surface
area.
Optimal
synthesis
conditions
established
as
follows:
100
°C
6
h
K1‐6/100,
120
K1‐6/120,
12
K1‐12/120.
TEM
images
revealed
that
the
possessed
hexagonal
morphology
between
10
nm.
XRD
analysis
confirmed
crystalline
structure
NPs,
whereas
FTIR
spectra
validated
presence
Ni─O
bonds.
UV–vis
detected
optical
bandgap
within
range
3.06
3.31
eV.
minimum
inhibitory
concentration
assays
indicated
compound
K1‐12/120
most
pronounced
antibacterial
effect
against
Escherichia
coli
at
256
µg/mL
Staphylococcus
aureus
128
µg/mL.
Moreover,
Gram‐positive
bacteria
found
be
more
susceptible
NPs.
Язык: Английский
NiFe2O4 Nanoparticles as Highly Sensitive Electrochemical Sensor for Nitrite Determination
Applied Organometallic Chemistry,
Год журнала:
2025,
Номер
39(4)
Опубликована: Март 24, 2025
ABSTRACT
Taking
into
account
the
harmful
influence
of
superfluous
nitrite
content
onto
ecosystem
and
human
health,
sensitive
real‐time
estimation
its
concentration
by
developing
reduced
cost
efficient
catalytic
surfaces
seems
as
a
vital
problem
to
be
solved.
Herein,
sensing
platform
for
ions
in
water
samples
was
designated
based
on
mixed
transition
metal
oxides.
NiFe
2
O
4
nanoparticles
were
fabricated
using
simple
straightforward
sol–gel
protocol
followed
calcination
at
900°C.
Convenient
physical
characterization
tools
employed
investigate
crystal
structure,
morphological,
chemical
composition,
elemental
mapping
distribution
this
formed
nanocomposite.
The
cubic
spinel
structure
confirmed
XRD
TEM
analyses.
average
crystallite
size
estimated
25.70
nm
wide
particle
range
between
10
50
nm.
Cyclic
voltammetric
study
revealed
pronounced
oxidation
current
density
nanomaterial
when
contrasted
that
Fe
3
1.283
times.
altering
scan
rate
electrolyte
pH
during
relevant
electrochemical
measurements
electroactivity
oxide
nanostructure
evaluated.
Some
kinetic
parameters
reaction
nanocomposite
including
Tafel
slope
(59.96
mV
dec
−1
),
exchange
(2.13
×
−7
A
cm
−2
diffusion
coefficient
(1.178
−3
s
electron
transfer
constant
(2.074
)
values.
linear
towards
with
outstanding
sensitivity
70.57
nA
μM
lowered
detection
limit
23.9
nM
could
monitored
nanopowder.
These
encouraging
results
might
focus
further
efforts
synthesizing
binary
oxides
surprising
activity
numerous
analytes
determination.
Язык: Английский
Measuring the effects of liquid bulk viscosity numerically on a spherical nitrogen bubble in aqueous H2SO4
P.K. Mall,
H.K. Paliwal,
Amit Medhavi
и другие.
AIP Advances,
Год журнала:
2025,
Номер
15(4)
Опубликована: Апрель 1, 2025
The
current
study
extensively
simulates
multiple
theories
concerning
the
mechanism
of
bubble
formation
during
interaction
between
an
aqueous
H2SO4
solution
and
nitrogen
gas.
This
leads
to
pressure
surges
high
internal
temperatures
due
violent
collapse
inertial
bubble.
examines
effects
liquid
volume
viscosity
on
dynamics
a
single
cavitation
by
applying
Gilmore
model
interface
under
various
boundary
conditions,
such
as
volume,
N2,
surface
tension,
temperature,
pressure,
etc.
An
in
bubbles
was
used
this
investigation.
A
comprehensive
frequency,
asymptotic
growth,
growth
carried
out.
To
quantitatively
investigate
influence
fluid
shear
bubble,
several
numerical
calculations
were
performed
at
viscosities
ranging
from
0.002
0.014
Pa
s,
both
with
without
viscosity.
In
addition,
focuses
maximum
stress
rather
than
highest
temperature.
Wherever
possible,
experimental
validations
that
serve
guide
for
theoretical
predictions
are
also
provided.
findings
indicate
while
impact
boom
may
be
negligible
lower
viscosities,
it
cannot
completely
ignored
relatively
viscosities.
analysis
offers
insight
into
how
thermodynamic
method
modifies
intensity
advances
our
understanding
complex
thermal-hydrodynamic
phenomenon.
Язык: Английский
Greener and Facile Synthesis of Binary Zinc Oxide/Nickel Oxide Heterojunction Nanocomposite for Potential Solar Energy Conversion, Environmental Remediation and Energy Storage Applications
Results in Engineering,
Год журнала:
2024,
Номер
unknown, С. 103842 - 103842
Опубликована: Дек. 1, 2024
Язык: Английский
Greenness assessment approach for spectrofluorimetric detection of daptomycin using metal oxide nanosensors synthesized via Commiphora myrrha extract in the presence of organizing solution
Results in Chemistry,
Год журнала:
2024,
Номер
unknown, С. 101948 - 101948
Опубликована: Дек. 1, 2024
Язык: Английский