Open Journal of Chemistry,
Journal Year:
2023,
Volume and Issue:
9(1), P. 006 - 015
Published: Aug. 22, 2023
Obviously,
BaTixFe12-(4/3)xO19
Hexagonal
nanocrystals
are
excellent
candidates
as
photocatalysts
in
water
purification,
well
using
them
electrode
materials
for
supercapacitors
and
energy
storage
applications.
M-Type
nanoparticles
(BaTixFe12-(4/3)xO19,
0
≤
x
1)
with
the
magneto-plumbite
structure
were
formerly
synthesized
by
co-precipitation
procedure
investigated
several
techniques
such
XRD,
FT-IR,
Raman,
Photoluminescence
UV-VL.
XRD
FT-IR
confirmed
structure,
Raman
spectra
showed
12
characterizing
summits.
emission
indicated
two
summits
at
448
501
nm.
Optical
UV-VL
spectroscopic
analysis
parameters
dependence
on
λ
x.
BaTi0.75Fe11O19
a
sort
of
Ferrites
Photocatalytic
activity
Degradation
Organic
Dyes
like;
Crystal
Violet,
Methyl
Orange,
…
etc.
Furthermore;
these
possess
electrochemical
performance;
which
turn
introduces
Supercapacitors
Applications.
Thus,
Photo-catalytic
decolorization
Violet
(CV)
dye
(1
×
10-5
M)
illuminated
photocatalytic
efficiency
reaching
≈
85%.
On
other
hand;
exhibited
specific
capacitance
1858
mF/g
50
mV/s.
The
current
study
promising
applications
super
storage.
Results in Chemistry,
Journal Year:
2023,
Volume and Issue:
7, P. 101247 - 101247
Published: Dec. 13, 2023
Water
is
the
fundamental
and
indispensable
component
of
every
organism
on
earth.Yet,
as
a
consequence
urbanization
industrialization;
sources
clean
water
have
been
polluted
with
dyes
that
are
unsafe
to
aquatic
creatures.
Nanoferrites
photocatalytic
material
having
an
incredible
narrow
band
gap,
physico-chemical
equilibrium,
large
porosity,
excellent
separation
carrier's
effectiveness,
paramagnetism,
making
it
easily
recoverable.
As
result,
ferrites
act
role
photocatalyst
for
wastewater
treatment.
In
this
review,
degradation
using
nanoferrites
host,
bimetal,
trimetal
doped
composite
forms
covered.
Characterizations
including
XRD,
FT-IR,
SEM,
EDAX,
TEM,
BET,
UV-DRS,
TGA
Raman
spectroscopy
used
investigation
confirm
development
design
nanoferrites.
The
synthesis
nanoferrites,
implemented
in
research
demonstrated
their
improved
ability
degrade
cancer-causing
be
recycled
additional
cycles
examination
has
summarized.
Photocatalysis
simple
ecologically
beneficial
process
provides
most
recent
concept
cleaning
specifically
manufactured
nanoparticles.
objective
biological
approaches,
green
nanoparticle
manufacturing,
multiple
chemical
strategies,
benefits
greener
chemistry,
its
usage
photocatalysis
industrial
all
addressed
review
article.
Overall,
study
looks
at
manner
which
may
advanced
by
employing
ferrite
synthesized
methods
better
environmental
monitoring
zero
energy
waste.
Approaches
modification
emphasized,
elemental
doping,
synthesizing,
morphological
modification.
By
these
techniques,
ferrite's
catalytic
activity
breakdown
organic
pollutants
enhanced.
manufacture
scale
utilizing
inexpensive,
energy-efficient,
environmentally
conscious
referred
they
recognized
potential
approach
employs
diverse
ingredients
respectively.
Future
will
focus
significantly
combination
various
strategies
improve
ferrites'
activity.
Journal of Nanotechnology,
Journal Year:
2025,
Volume and Issue:
2025(1)
Published: Jan. 1, 2025
This
paper
reports
the
successful
synthesis
of
spinel‐type
CuFe
2
O
4
ferrite
nanoparticles
with
an
average
particle
size
24
nm,
produced
using
citrate
sol–gel
autocombustion
method.
The
structure
synthesized
material
was
analyzed
through
x‐ray
diffraction
(XRD)
and
further
supported
by
Raman
FT‐IR
spectroscopy.
analysis
confirmed
that
formed
a
spinel
Fd3m
space
group.
Valence
states
energy
levels
elements
were
examined
photoelectron
spectroscopy
(XPS).
Surface
morphology
studied
scanning
electron
microscopy
(SEM),
coupled
elemental
analysis.
magnetic
properties
investigated
vibrating
sample
magnetometer
(VSM).
Magnetization
measurements
revealed
exhibited
characteristic
parameters
copper
ferrite,
saturation
magnetization
(Ms)
23.10
emu/g,
coercivity
Hc
415
Oe,
remnant
(Mr)
12.80
emu/g.
These
enable
efficient
separation
from
aqueous
solutions,
thereby
enhancing
process
efficiency
minimizing
catalyst
loss
during
photocatalytic
applications.
Optical
spectrophotometry,
revealing
optical
band
gap
1.85
eV,
which
demonstrates
potential
for
activity
under
visible
light.
effectively
degraded
dyes
such
as
methylene
blue
(MB),
malachite
green
(MG),
Safranine
(S),
Congo
Red
(CR),
Rhodamine
B
(RhB)
within
180
min,
highlighting
its
practical
application
potential.
study
identified
hydroxyl
radicals
(·OH),
generated
H
decomposition
light
irradiation,
played
critical
role
in
photo‐Fenton
reaction.
A
proposed
mechanism
involves
excitation
light,
facilitating
transfer
leads
to
generation
·OH
radicals,
degrade
dye
molecules.
Among
tested
dyes,
CR
highest
degradation
percentage
rate
constant
0.033
min⁻
1
followed
pseudo‐first‐order
kinetic
model.
effect
hydrogen
peroxide
concentration
on
also
evaluated.
Gels,
Journal Year:
2025,
Volume and Issue:
11(2), P. 117 - 117
Published: Feb. 6, 2025
Tailoring
the
bandgap
of
a
material
is
necessary
for
improving
its
optical
properties.
Here,
high-entropy
oxide
Ce0.2Gd0.2Sm0.2Y0.2Zr0.2O2-δ
(HEO)
nanoparticles
was
modified
using
Pr3+.
Various
concentrations
Pr3+
(x
=
0,
0.01,
0.02,
0.05,
0.075,
0.1,
0.15)
were
incorporated
into
host
gel
combustion
synthesis.
After
step,
powders
heat-treated
at
various
temperatures
(650
°C,
800
950
°C)
2
h.
The
obtained
Pr3+-incorporated
HEO
characterized
X-ray
diffraction
(XRD),
field
emission
scanning
electron
microscopy
(FESEM),
and
UV–visible
spectroscopy.
results
indicate
that,
when
samples
are
calcined
single-phase
cubic
fluorite
structure
without
any
phase
separation
or
impurity.
absorbance
red-shifts
to
higher
wavelengths
concentration
increased.
This
reduces
from
3.15
eV
1.87
x
0
(HEO-0)
0.15
(HEO-6),
respectively.
HEOs
can
be
suitable
candidates
photocatalytic
applications
due
their
in
visible
region.
