Applied Sciences,
Journal Year:
2023,
Volume and Issue:
13(21), P. 11857 - 11857
Published: Oct. 30, 2023
The
presence
of
Methyl
Orange,
a
hazardous
organic
compound
typically
found
in
industrial
wastewater,
presents
significant
environmental
challenge,
necessitating
the
development
effective
strategies
for
its
removal
to
mitigate
adverse
impacts
on
aquatic
ecosystems
and
human
health.
In
this
work,
we
utilized
60-watt
continuous-wave
(CW)
high-power
CO2
laser
with
10.6
μm
wavelength
synthesize
Zinc
Oxide
nanoparticles
(ZnO
NPs)
doped
1%
Cerium
(Ce)
as
photocatalyst
at
standard
laboratory
conditions
through
Laser-Assisted
Chemical
Bath
Synthesis
(LACBS)
technique.
synthesized
nanostructures
were
thoroughly
characterized
using
UV–vis
spectroscopy,
field-emission
scanning
electron
microscopy
(FESEM),
X-ray
diffraction
(XRD)
techniques.
Subsequently,
their
efficiency
degrading
Orange
(MO)
dye
was
evaluated
under
UV
sunlight
irradiation.
findings
revealed
that
Ce-doped
ZnO
sample
exhibited
enhanced
photocatalytic
both
irradiation,
well
active
adsorption
capabilities
absence
light.
Notably,
most
photodegradation
performance
achieved
solar
radiation,
an
impressive
95%
MO
degradation
observed
after
just
90
min
exposure.
Materials Today Communications,
Journal Year:
2024,
Volume and Issue:
39, P. 109216 - 109216
Published: May 13, 2024
Anodic
TiO2
nanotubes
(NTs)
are
widely
established
in
biomedical
applications,
as
the
sub-100
nm
morphology
significantly
impacts
their
biological
activity.
In
this
study,
we
examine
use
and
surface
functionalization
of
nanotube
layers
on
titanium
substrates
to
facilitate
formation
hydroxyapatite,
a
crucial
ability
for
implant
applications.
NT
grown
by
electrochemical
anodization
focus
is
as-formed
anatase
NTs
with
100-
15-nm-diameters,
latter
amorphous
available
double-wall
(DT)
or
single-wall
(ST)
structures.
Surface
modification
achieved
through
an
alternate
immersion
method
(AIM)
simple
CaCl2
immersion.
The
former
deposits
hydroxyapatite
(HA)
coatings
on/in
layers,
while
forms
thin
Ca-surface-modified
layer
surface.
Both
methods
effectively
induce
HA
100-nm-diameter
after
five
days
simulated
body
fluid
(SBF).
chemical
composition
deciding
factor,
that
already
contain
phosphates
(from
anodizing
electrolyte)
also
lead
via
Ca-functionalization
(CaCl2
immersion).
Whereas,
smaller
diameter
NTs,
nanotopography
DT
ST
key
nucleation
AIM
approach,
but
not
calcium-containing
solution.
This
promising
approach
accelerates
growth
nanomaterials
initiating
apatite
and,
thus,
has
significant
implications
increasing
bioactivity
Coatings,
Journal Year:
2025,
Volume and Issue:
15(4), P. 447 - 447
Published: April 10, 2025
A
double-layer
core–shell
photocatalytic
coating
was
engineered
on
carbon
fibers
(CFb)
derived
from
bamboo
pulp
precursors,
employing
a
sequential
process
involving
seed
pre-loading,
solvothermal
treatment,
and
impregnation.
XRD,
SEM,
SEM-EDS
analyses
revealed
that
g-C3N4
Bi2O3
nanosheets
were
co-assembled
the
fiber
skeleton,
50
nm
MoS2
particles
successfully
loaded,
resulting
in
fabrication
of
MoS2/g-C3N4/Bi2O3/CFb
fibers.
UV–vis
spectroscopy,
transient
photocurrent
response,
EIS
tests
demonstrated
introduction
narrow-bandgap
visible-light
photocatalysts
(g-C3N4
MoS2)
enhanced
light
absorption
improved
separation
migration
efficiency
photogenerated
electron
hole
pairs.
Photocatalytic
degradation
experiments
MB
showed
significantly
outperformed
g-C3N4/Bi2O3/CFb
Bi2O3/CFb,
achieving
92%
within
60
min.
Band
structure
calculations
analysis
confirmed
formation
Z-scheme
heterojunctions
between
Bi2O3,
as
well
Bi2O3.
This
dual
heterojunction
endowed
with
redox
capabilities,
providing
novel
strategy
for
developing
efficient
materials.
