Rhenium-doped MoS2 3D-flower-like nanosheets on 2D-TiO2 core-shell for synergistic photocatalytic degradation of RhB under visible light.
Materials Today Communications,
Год журнала:
2025,
Номер
unknown, С. 111961 - 111961
Опубликована: Фев. 1, 2025
Язык: Английский
N-Doped Modified MoS2 for Piezoelectric–Photocatalytic Removal of Tetracycline: Simultaneous Improvement of Photocatalytic and Piezoelectric Properties
Water,
Год журнала:
2025,
Номер
17(9), С. 1296 - 1296
Опубликована: Апрель 26, 2025
Piezoelectric
and
photocatalytic
technologies
use
mechanical
light
energy
to
decompose
environmental
contaminants,
demonstrating
a
beneficial
synergistic
impact.
This
investigation
employs
two-step
hydrothermal-calcination
technique
synthesize
N-doped
MoS2
materials.
The
ideal
catalyst,
N-MoS2-3,
utilizing
the
effect
of
piezoelectric–photocatalysis
processes,
attained
TC
degradation
rate
90.8%
in
60
min.
kinetic
constant
(0.0374
min−1)
is
1.75
times
greater
than
combined
rates
single
photocatalysis
piezoelectric
catalysis,
indicating
notable
material
has
80%
efficiency
after
five
cycles,
its
remarkable
resilience.
Mechanistic
investigations
reveal
that
nitrogen
doping
establishes
an
internal
electric
field
by
modulating
S-Mo-S
charge
distribution.
Photogenerated
electrons
move
generate
•O2−,
while
holes
accumulate
internally.
ultrasound-induced
polarization
interacts
with
photogenerated
reverse,
thereby
synergistically
improving
carrier
separation
facilitating
redox
processes.
study
emphasizes
viability
non-metal
as
method
for
modifying
properties
two-dimensional
materials,
offering
novel
approach
enhance
attributes
technology
possesses
significant
promise
restoration
through
utilization
solar
energy.
Язык: Английский
Research progress of MoS2-based electrode materials in electrocatalytic hydrogen evolution: from synthesis, characterization to electrocatalytic performance optimization strategy
International Journal of Hydrogen Energy,
Год журнала:
2025,
Номер
137, С. 26 - 72
Опубликована: Май 11, 2025
Язык: Английский
Co‐Implementing Optimized Volmer and Heyrovsky Reactions in Hydrogen Production via Composite Active Sites on Electron‐Withdrawing Carriers
Advanced Materials,
Год журнала:
2025,
Номер
unknown
Опубликована: Май 19, 2025
Abstract
The
trade‐off
of
the
Volmer
reaction
for
*H
formation
and
Heyrovsky/Tafel
Reaction
desorption
is
a
crucial
challenge
in
alkaline
hydrogen
evolution
(HER).
Thus,
aside
from
conventional
construction
bifunctional
active
sites
to
accelerate
water
dissociation
step,
electronic
retrimming
each
metal
site
also
non‐negligible.
Herein,
an
efficient
HER
electrocatalyst
combining
Pt
single‐atoms
nanoparticles
on
etched
boron
nitride
(eBN)
coated
carbon
nanotube
(Pt‐eBN@CNT)
synthesized,
where
both
Heyrovsky
steps
are
promoted
by
synergistic
adsorption
composite
electron‐withdrawing
effect
eBN
carrier,
respectively.
proposed
catalyst
shows
impressive
performance
media
with
overpotential
25.1
±
1.7
mV
at
10
mA
cm
−2
,
TOF
17.1
1.3
s
−1
0.15
V
vs
RHE
under
extremely
low
loading
6
µg
(catalyst
0.77
mg
),
significantly
better
than
those
commercial
benchmark
Pt/C
(44.2
4.1
mV,
0.9
0.1
;
156.1
0.6
1.6
)
same
conditions.
Moreover,
membrane‐electrode‐assembly
(MEA)
electrolyzer
Pt‐eBN@CNT
as
cathodic
exhibits
notable
charge
transfer
amount
(stands
long
service
life)
2.0
×
C·cm
within
high‐temperature
electrocatalysis
1.0
A·cm
higher
state‐of‐the‐art
Pt‐based
electrocatalysts.
This
work
demonstrates
important
role
active‐site
combination
coupled
carrier
optimizing
kinetics
multi‐step
electrocatalytic
reaction.
Язык: Английский