Digest Journal of Nanomaterials and Biostructures,
Journal Year:
2024,
Volume and Issue:
19(4), P. 1765 - 1789
Published: Nov. 15, 2024
In
current
research,
we
investigated
the
optical
parameters
of
ZnO
based
nanomaterials
(pure
and
Ca-doped
nanostructures).
X-ray
diffraction
study
examined
that
nanostructures
had
good
crystallinity
phase
purity.
Furthermore,
energy-dispersive
Xray
spectroscopy
reported
composition
scanning
electron
microscopy
(SEM)
also
illustrated
surface
morphology
nanomaterials.
Photoluminescence
UV-visible
were
employed
to
explore
features.
It
was
observed
from
results
3%
calcium-doped
zinc
oxide
exhibited
highest
efficiency
in
degradation
both
MB
MO
dyes.
Notably,
achieved
for
84%
89%,
respectively.
Catalysts,
Journal Year:
2025,
Volume and Issue:
15(2), P. 118 - 118
Published: Jan. 26, 2025
Nb-Sn,
V-Sn
mixed-metal
oxides
and
Nb-Si,
V-Si
metal
oxide–silicas
were
successfully
synthesized
through
a
“soft”
templating
method,
in
which
appropriate
amounts
of
salts
(either
niobium(V)
chloride,
or
vanadium(IV)
oxide
sulfate
hydrate
tin(II)
chloride
dihydrate)
tetraethyl
orthosilicate
(TEOS)
mixed
with
hexadecyltrimethylammonium
(HDTA)
sodium
dodecyl
(SDS)
solutions
to
obtain
new
series
mesoporous
oxides,
followed
by
calcination
at
different
temperatures.
As-obtained
samples
characterized
SEM,
TEM,
XRD,
UV-Vis
spectra
techniques.
The
photocatalytic
activities
the
evaluated
degradation
methyl
orange
II
(MO)
under
simulated
sunlight
irradiation.
effects
species
temperature
on
physicochemical
characteristic
activity
investigated
detail.
results
indicated
that,
compared
pure
showed
superior
performance
for
MO.
A
maximum
discoloration
rate
97.3%
(with
MO
initial
concentration
0.6·10−4
mol/dm3)
was
achieved
300
min
NbSiOx
material,
much
higher
than
that
Degussa
P25
same
conditions.
Additionally,
tested
photochemical
oxidation
process,
i.e.,
advanced
processes
(AOPs)
treat
commercial
non-ionic
surfactant:
propylene
ethylene
polymer
mono(nonylphenyl)
ether
(N8P7,
PCC
Rokita).
99.9%
30
material.
ACS Omega,
Journal Year:
2025,
Volume and Issue:
10(10), P. 9962 - 9975
Published: March 6, 2025
Dye
residues
from
the
textile
industry
significantly
contribute
to
water
pollution,
necessitating
effective
wastewater
treatment
methods.
This
study
reports
successful
synthesis
of
zinc
oxide
(ZnO)
nanoparticles
using
various
ionic
liquids
(ILs),
[BMIM]-BF4,
[BMIM]-PF6,
and
[BMIM]-Cl,
as
mediators.
The
synthesized
nanomaterials
were
characterized
techniques,
including
X-ray
diffraction
(XRD),
Fourier
transform
infrared
(FTIR)
spectroscopy,
scanning
electron
microscopy
(SEM),
photoluminescence
(PL)
spectroscopy.
Their
photocatalytic
activity
in
degrading
methyl
orange
(MO)
dye
under
UV-vis
sunlight
irradiation
was
investigated.
results
demonstrated
that
ILs
influenced
structural
optical
properties
ZnO,
resulting
smaller
crystallite
sizes,
modified
morphologies,
reduced
band
gap
energies
compared
unmodified
ZnO.
ZnO-[BMIM]-BF4
(1%)
exhibited
superior
efficiency,
achieving
complete
MO
degradation
within
30
min
irradiation,
attributed
its
enhanced
light
absorption
electron-hole
recombination.
ZnO-BMIM-PF6
exceptional
stability,
maintaining
high
efficiency
over
multiple
cycles.
These
findings
highlight
potential
IL-mediated
tailoring
ZnO
for
efficient
organic
pollutants,
offering
a
promising
approach
treatment.
ChemistrySelect,
Journal Year:
2025,
Volume and Issue:
10(17)
Published: May 1, 2025
Abstract
In
this
study,
CuFe‐LDH/MIL‐88
composite
was
prepared
via
the
hydrothermal
method
with
low
cost
and
high
efficiency
for
methyl
orange
(MO)
degradation.
The
produced
photocatalysts
were
characterized
their
morphological
structural
aspect
employing
XRD,
FTIR,
SEM,
EDX
techniques.
Through
SEM
analysis,
it
established
that
synthesized
LDH
materials
had
a
rod‐like
morphology
layered,
stacked
structure.
order
to
confirm
working
of
composite,
various
factors
including
contact
time
pH
MO
solution
evaluated.
results
demonstrated
photocatalyst
exhibited
66.66%
degradation
under
60
min
solar
light
irradiation.
Besides,
also
showed
stability
recyclability;
activity
remained
almost
unchanged
after
four
regeneration
processes.
findings
work
offer
important
mechanistic
information
concerning
preparation
high‐performance
manifest
great
promise
in
environmental
applications.
