Catalysts,
Journal Year:
2024,
Volume and Issue:
15(1), P. 3 - 3
Published: Dec. 24, 2024
A
novel
spherical
MoS2/WO3
composite
was
fabricated
via
a
hydrothermal
method
for
the
photocatalytic
degradation
of
RhB
from
wastewater.
The
structure
and
morphology
photocatalyst
were
systematically
characterized.
nanospheres
formed
p-n
heterojunction,
with
charge
migration
following
Z-scheme
mechanism.
composites
exhibited
superior
activity,
achieving
94.5%
rate
in
just
60
min
under
visible
light
irradiation,
far
surpassing
performance
pure
WO3
MoS2.
This
enhanced
activity
attributed
to
improved
separation
efficiency
redox
capacity,
enabled
by
unique
“layer–bending
layer”
growth
mode.
composite’s
transfer
resistance
(Rct)
as
low
7.42
×
102
Ω,
promoting
faster
electrochemical
reactions.
With
maximum
photocurrent
density
87
μA·cm−2,
rapidly
separated
photogenerated
electron–hole
pairs.
primary
reactive
species
reaction
·OH
O2−,
h+
playing
secondary
role.
RSC Advances,
Journal Year:
2024,
Volume and Issue:
14(3), P. 2080 - 2087
Published: Jan. 1, 2024
A
template-based
solvothermal
method
is
successfully
developed
for
the
controlled
synthesis
of
two-dimensional
monoclinic
WO
3
nanoplate/nanosheet
arrays
and
three-dimensional
hexagonal
nanosphere/nanocage
structures
with
single
crystal
petals.
Applied Surface Science Advances,
Journal Year:
2023,
Volume and Issue:
18, P. 100541 - 100541
Published: Dec. 1, 2023
The
practical
application
of
powder
photocatalysts
for
visible
light
catalysis
can
be
limited
due
to
the
accumulation
nanoparticles
and
complexity
their
recovery.
Therefore,
photocatalytic
coatings
are
suitable
candidates
pollutant
degradation.
In
this
study,
a
hierarchical
TiO2/WO3
hybrid
coating
was
created
on
Ti
substrate
using
plasma
electrolytic
oxidation
(PEO)
followed
by
hydrothermal
treatment
as
post-treatment.
exhibits
superior
performance
methylene
blue
removal
under
compared
pure
TiO2
coating,
increasing
MB
from
41
88.3
%.
morphology
consists
combination
nanorods.
decrease
in
photoluminescence
(PL)
intensity
indicates
that
inhibits
photo-induced
e−-h+
recombination.
optimal
revealed
exceptional
stability
efficiency
even
after
four
cycles.
impact
parameters
such
concentration
pH
investigated
well.
scavenging
test
results
reveal
main
active
radicals
photocatalysis
hydroxyl
(HO•)
holes
(h+)
species.
According
Mott-Schottky
DRS
(Diffuse
Reflectance
Spectroscopy)
results,
photodegradation
mechanism
proposed.
