Advanced Functional Materials,
Год журнала:
2024,
Номер
unknown
Опубликована: Ноя. 5, 2024
Abstract
Herein,
a
novel
bismuth
tungstate
and
cadmium
sulfide
(CdS/Bi
2
WO
6
）step‐scheme
(S‐scheme)
heterojunction
piezocatalyst
for
the
first
time
is
developed.
The
exceptional
piezocatalytic
nitrogen
reduction
reaction
activity
(1.37
mmol
L
−1
g
h
)
delivered,
which
significantly
higher
compared
to
pure
CdS
(0.06
bare
Bi
(0.45
),
showing
an
almost
23‐fold
3‐fold
increase,
respectively.
This
performance
greatly
exceeds
previously
reported
piezocatalysts
piezo‐photocatalysts.
Meanwhile,
this
catalyst
also
holds
outstanding
hydrogen
evolution
rate
of
1.02
.
Relevant
experimental
density
functional
theory
(DFT)
calculations
results
demonstrate
that
excellent
catalytic
capacity
CdS/Bi
mainly
ascribed
construction
S‐scheme
heterojunction,
promotes
piezoelectric
performance,
enhances
segregating
efficiency
charge
carriers
redox
capacity,
regulates
electronic
structure,
optimizes
dynamics
processes
reduces
reactions
barrier,
induces
more
active
sites.
Furthermore,
new
mechanism
proposed.
research
extends
applications
heterojunctions
in
sustainable
energy
piezocatalysis
offers
insights
designing
efficient
systems.
Nanomaterials,
Год журнала:
2025,
Номер
15(5), С. 386 - 386
Опубликована: Март 2, 2025
Contact-electro-catalysis
(CEC)
has
emerged
as
a
promising
catalytic
methodology,
integrating
principles
from
solid-liquid
triboelectric
nanogenerators
(SL-TENGs)
into
catalysis.
Unlike
conventional
approaches,
CEC
harnesses
various
forms
of
mechanical
energy,
including
wind
and
water,
along
with
other
renewable
sources,
enabling
reactions
under
natural
conditions
without
reliance
on
specific
energy
inputs
like
light
or
electricity.
This
review
presents
the
basic
discusses
its
applications,
degradation
organic
molecules,
synthesis
chemical
substances,
reduction
metals.
Furthermore,
it
explores
methods
to
improve
efficiency
by
optimizing
conditions,
structure
catalyst
materials,
start-up
mode.
The
concluding
section
offers
insights
future
prospects
potential
applications
CEC,
highlighting
role
in
advancing
sustainable
technologies.
Piezocatalysis
is
a
promising
and
ecofriendly
technology
for
hydrogen
peroxide
(H2O2)
synthesis,
yet
its
efficiency
hindered
by
limited
active
sites
poor
electron-hole
utilization.
Herein,
guided
theoretical
calculations,
novel
organic-inorganic
hybrid
piezocatalyst
with
abundant
full
utilization
of
electron-holes
was
rationally
designed
the
overall
synthesis
H2O2.
Results
illustrated
that
organic
component
(cobalt
phthalocyanine,
CoPc)
switched
H2O2
inorganic
(BiOIO3,
BIO)
from
single-channel
two-electron
water
oxidation
reaction
(2e-
WOR)
to
an
efficient
dual-channel
pathway.
Specifically,
Co
metal
centers
boosted
O2
adsorption
activation
coupling
O
2p
orbitals,
enabling
2e-
oxygen
reduction
reaction.
Additionally,
CoPc
hybridization
increased
piezoresponse,
further
facilitating
WOR
on
BIO.
The
optimal
sample
achieved
exceptional
yield
751.2
μmol
g-1
h-1
in
pure
water/air
exhibited
excellent
degradation
refractory
micropollutants.
Our
work
introduces
strategy
facilitates
advancement
sustainable
purification
technologies.
