Inorganic Chemistry,
Journal Year:
2024,
Volume and Issue:
64(1), P. 305 - 314
Published: Dec. 24, 2024
Piezoelectric
catalytic
production
of
H2O2
is
a
novel
and
environmentally
friendly
method,
many
piezoelectric
catalysts
are
currently
being
developed.
However,
all
them
have
the
disadvantages
precious
metals
as
cocatalysts
low
efficiency.
Herein,
CaTiO3
was
successfully
prepared
loaded
with
nonprecious
metal
CoP
(CoP/CaTiO3)
for
H2O2.
The
yield
produced
by
5%
CoP/CaTiO3
catalysis
reached
9657.3
μmol
L–1
g–1,
which
1.64
times
than
that
single-component
CaTiO3,
furthermore,
performance
remained
stable
after
five
cycles.
This
study
directly
demonstrates
response
using
Piezoresponse
Force
Microscopy.
Under
ultrasonic
conditions,
undergoes
polarization,
resulting
in
generation
electrons
(e–)
holes
(h+).
e–
two-step
single-electron
reaction
O2
to
form
Because
conduction
band
position
lower
this
potential
difference
promotes
migration
from
CoP.
process
effectively
enhances
spatial
separation
h+,
significantly
improves
performance.
In
work,
nontoxic
inexpensive
new
material
synthesized
method
can
produce
large
quantities,
strategy
provided
improve
activity,
played
key
role
promoting
green
industrial
Advanced Functional Materials,
Journal Year:
2023,
Volume and Issue:
33(34)
Published: April 27, 2023
Abstract
Although
the
piezo‐catalysis
is
promising
for
environmental
remediation
and
biomedicine,
piezo‐catalytic
properties
of
various
piezoelectric
materials
are
limited
by
low
carrier
concentrations
mobility,
rapid
electron‐hole
pair
recombination,
reported
regulating
strategies
quite
complex
difficult.
Herein,
a
new
simple
strategy,
integrating
phase
boundary
engineering
defect
engineering,
to
boost
activity
potassium
sodium
niobate
((K,
Na)NbO
3
,
KNN)
based
innovatively
proposed.
Tur
strategy
validated
exampling
0.96(K
0.48
Na
0.52
)Nb
0.955
Sb
0.045
O
‐0.04(Bi
x
4‐3
)
0.5
ZrO
‐0.3%Fe
2
material
having
conducted
via
high‐energy
sand‐grinding.
A
high
reaction
rate
constant
k
92.49
×
10
−3
min
−1
in
sand‐grinding
sample
obtained,
which
2.40
times
than
that
non‐sand‐grinding
one
superior
those
other
representative
lead‐free
perovskite
materials.
Meanwhile,
has
remarkable
bactericidal
against
Escherichia
coli
Staphylococcus
aureus.
Superior
activities
originate
from
enhanced
separation
increased
concentration.
This
study
provides
novel
method
improving
holds
great
promise
harnessing
natural
energy
disease
treatment.
ACS Applied Nano Materials,
Journal Year:
2024,
Volume and Issue:
7(2), P. 1885 - 1895
Published: Jan. 12, 2024
Constructing
a
heterostructure
is
an
effective
strategy
for
improving
piezocatalytic
performance.
Here,
Bi5Ti3FeO15/BiOCl
heterostructured
nanocomposites
were
synthesized
to
enhance
the
performance
by
synergy
of
oxygen
vacancy
and
heterojunction.
As
expected,
optimized
exhibited
superior
activity
toward
organic
pollutant
degradation
compared
Bi5Ti3FeO15
BiOCl.
Under
ultrasound
vibration,
rhodamine
B
(RhB)
was
degraded
96%
in
20
min,
mixed
dyes
97%
within
30
min
Bi5Ti3FeO15/BiOCl,
efficiencies
higher
than
numerous
reported
piezocatalysts.
The
catalyst
also
had
efficient
removal
capability
bisphenol
A,
tetracycline
hydrochloride,
phenol.
In
addition,
RhB,
hydrochloride
efficiently
decomposed
under
magnetic
stirring,
indicating
that
harvesting
low-frequency
mechanical
energy.
construction
combined
merits
band
structure,
which
enhanced
absorption
dyes,
oxygen,
OH–,
improved
separation
efficiency
carriers,
promoted
formation
radicals,
activity.
This
study
not
only
shed
light
on
design
piezocatalyst
but
demonstrated
using
energy,
proved
be
promising
degrading
pollutants
wastewater.
Advanced Functional Materials,
Journal Year:
2024,
Volume and Issue:
34(48)
Published: July 2, 2024
Abstract
Piezocatalysis
is
capable
of
harnessing
mechanical
energy
for
environmental
remediation,
which
regarded
as
a
green
and
promising
technology
to
be
exploited.
Piezoceramics
are
struggling
used
highly
efficient
piezocatalysts
due
their
grain
size
reaching
tens
micrometers
usually.
Herein,
feasible
straightforward
method
proposed
turn
piezoceramic
powders
into
by
integrating
optimization
oxygen
vacancy
modulation.
This
strategy
validated
treating
lead‐free
Sr
0.5
Ba
Nb
2
O
6
(SBN)
with
high‐energy
ball‐milling
(hBM).
The
rate
constant
k
value
46.95
×
10
−3
min
−1
rhodamine
B
(RhB)
piezocatalytic
degradation
SBN‐hBM‐12h
almost
18
times
higher
than
that
pristine
SBN.
Besides,
the
SBN‐hBM‐12
h
catalyst
performed
superior
antibacterial
properties
against
Escherichia
coli.
enhanced
efficiency
attributed
introduced
abundant
vacancies
absorbing
activating
reactive
species.
Well‐modulated
concentration
can
effectively
accelerate
generation
separation
free
carriers.
However,
excess
in
SBN
render
weakened
piezoresponse
thus
suppressing
activity.
study
elucidates
critical
role
piezocatalysis
provides
insights
development
piezocatalysts.
Chemical Society Reviews,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Dec. 19, 2024
This
review
outlines
recent
advances
in
field-regulated
catalysis
and
reveals
the
key
role
of
dipole
manipulation
by
electric/magnetic/electromagnetic
fields.
Advanced Functional Materials,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Nov. 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.
