Results in Physics,
Journal Year:
2023,
Volume and Issue:
46, P. 106320 - 106320
Published: March 1, 2023
Co0.2Ni0.5Zn0.3EuxFe2-xO4
(CNZEFO)
composites
were
synthesized
by
the
conventional
double
sintering
technique,
where
x
=
0.00,
0.02,
0.04,
and
0.08.
Rietveld
refined
x-ray
diffraction
indicates
spinel
cubic
structure
(Fd-3
m
space
group)
of
samples.
The
XRD
pattern
also
mentioned
Fe2O3
secondary
peak
for
0.04
0.08
structural
lattice
constant
was
initially
increased,
but
after
that
it
decreased
with
Eu
concentration.
bulk
density
samples
always
lower
than
density,
densities
increased
enhancement
FTIR
analysis
confirmed
metal–oxygen
bonds
in
ferrite
structure.
FESEM
micrographs
provide
average
grain
size
samples,
which
varies
between
105.1
nm
169.9
nm.
EDX
used
to
carry
out
compositional
verification
confirm
elements
present
required
ratios.
Magnetic
hysteresis
loop
measurements
studied
at
room
temperature,
magnetization
demonstrates
decline
substitution
ions.
addition
concentration
changed
other
fundamental
properties
ferrites,
such
as
coercivity
(Hc),
retentivity
(Mr),
anisotropy
(K),
magnetic
moment
(nB).
permeability
show
real
decreasing
frequency
region
further
they
became
high
higher
region.
loss
tangent
(tanδM)
dielectric
(tanδD)
reduced
concentration,
doped
quality
factor
pure
sample.
resistivity
impedance
noticed
content
Co0.3Ni0.2Zn0.5Fe2O4
These
europium
cobalt–nickel-zinc
ferrites
may
be
strong
candidates
potential
applications.
Materials Research Innovations,
Journal Year:
2020,
Volume and Issue:
25(3), P. 169 - 174
Published: May 18, 2020
The
enduring
outbreak
of
the
corona
virus
disease
(COVID-19)
originated
from
China
illustrates
global
concerns
owing
to
their
infective
nature
and
time-consuming
incubation.
Even
though
diagnostic
tools
based
on
RT-PCR
are
being
extensively
employed
at
present,
well-timed
precise
diagnostics
still
restricted
because
long-period
exhaustive
man-power
requirement.
To
tackle
this
problem,
we
herewith
report
fabrication
surface
functionalised
magnetic
nanoparticles
(MNP's)
viral
RNA-extraction
protocol
for
potential
detection
COVID-19.
zinc
ferrite
were
prepared
by
combustion
synthesis
its
was
silica
carboxyl-modified
polyvinyl
alcohol.
MNP's
characterized
confirm
nano-scale
appearance
functionalization.
proposed
model
may
provide
ability
extract
RNA
several
specimens
through
automation
process.
In
light
ease
proficiency,
significantly
lessen
operation
period
necessities
present
molecular-level
ACS Omega,
Journal Year:
2020,
Volume and Issue:
5(36), P. 23378 - 23384
Published: Sept. 2, 2020
Oleic
acid-coated
cobalt
ferrite
nanoparticles
were
synthesized
using
the
chemical
co-precipitation
route
and
characterized
by
standard
techniques
for
structure,
morphology,
magnetic
properties
analysis.
The
Rietveld
refined
X-ray
diffraction
(XRD)
pattern
of
CoFe2O4
indicated
formation
a
cubic-spinel
single-phase
structure
with
Fd3̅m
space
group.
average
crystallite
size
(∼12
nm)
confirmed
nanocrystalline
appearance
prepared
nanoparticles.
Transmission
electron
microscopy
(TEM)
images
revealed
spherical
nature
both
(CoFe2O4)
(OA-CoFe2O4)
samples.
absorption
bands
in
Fourier
transform
infrared
(FT-IR)
spectrum
at
∼3418,
3026,
1628,
1404,
1068,
845,
544,
363
cm–1
affirmed
spinel
OA
attachment.
M–H
curve
recorded
room
temperature
showed
superparamagnetic
moderate
saturation
magnetization
(∼78
emu/gm).
blocking
obtained
from
field-cooled
zero-field-cooled
(FC–ZFC)
was
estimated
to
be
144
K.
Further,
surface-modified
then
added
ethylene
glycol/water
various
concentrations
induction
heating
technique
evaluation
their
self-heating
characteristics.
A
series
versus
time
measurements
made
varying
proportion
better
understanding
characteristics
All
findings
display
applicability
fluid
hyperthermia
toward
noninvasive
cancer
treatment
other
bio-applications.
Journal of Physics Conference Series,
Journal Year:
2020,
Volume and Issue:
1644(1), P. 012046 - 012046
Published: Oct. 1, 2020
Abstract
As
the
world
is
at
present
confronting
tremendous
issues
concerning
atmosphere,
energy,
and
environment,
catalysis
innovations
have
all
earmarks
of
being
getting
critical
to
synthesis
process,
environmental
areas.
In
recent
years,
transformation
research
on
catalytic
activities
advanced
catalyst
was
seen
with
advancement
nanotechnology.
Undoubtedly,
utilization
nanomaterials
in
and,
more
especially,
inorganic
nanoparticles
has
pulled
many
attempts
over
globe
create
imaginative
greener
conventions.
These
can
be
used
as
or
mediator
encourage
reactant
procedure
new
medium
such
as,
water.
Besides,
attributable
their
little
size
expanded
surface
area,
nano-catalysts
obviously
risen
offering
an
interesting
candidate
interface
among
homogeneous
heterogeneous
catalysis,
taking
into
consideration
response
rate.
Furthermore,
give
extra
functionalities
because
inherent
properties
(e.g.,
nanomagnetism,
photocatalytic
activity).
Along
these
lines,
this
pursuit
for
eco-friendly
affordable
catalyst,
nano-catalysis
turning
a
significant
field
science,
which
applied
broadly
academics
industrial
This
brief
review
principally
centered
around
portraying
major
comprehension
nano-catalysis,
how
remarkable
property
other
explicit
rely
upon
its
structure
nano
level.