Inorganic Chemistry,
Год журнала:
2025,
Номер
unknown
Опубликована: Март 17, 2025
In
this
work,
we
synthesized
a
Bi4Ti3O12
piezocatalyst
with
surface
oxygen
vacancy
(BTO-Ov)
to
facilitate
in
situ
hydrogen
peroxide
(H2O2)
production
and
establish
piezocatalytic
self-cycled
Fenton-like
system
for
degradation
of
pollutants.
Notably,
the
H2O2
evolution
rate
from
BTO-Ov
catalyst
reaches
558.8
μmol
g–1
h–1
when
utilizing
pure
water,
significantly
exceeding
obtained
BTO
(274.6
h–1).
Furthermore,
can
be
enhanced
1091.6
addition
ethanol
as
sacrificial
agent
endows
robust
stability.
(BTO-Ov/Fe0),
efficiency
methyl
orange
(MO)
dye
pollutant
achieve
91.9%
within
20
min,
coupled
high
kinetic
coefficient
0.117
min–1,
indicating
excellent
catalytic
activity.
Relevant
characterization
results
reveal
that
introduction
improves
piezoelectricity,
reduces
band
gap
BTO,
enhances
charge
carrier
transfer
separation,
facilitates
dual-channel
reaction
mechanism,
thereby
achieving
superior
performance.
This
work
not
only
synthesis
valuable
chemicals
but
also
offers
cost-effective
sustainable
approach
wastewater
purification.
Angewandte Chemie International Edition,
Год журнала:
2024,
Номер
63(38)
Опубликована: Июнь 25, 2024
Photocatalytic
nitrate
reduction
reaction
(NitRR)
is
a
promising
route
for
environment
remediation
and
sustainable
ammonia
synthesis.
To
design
efficient
photocatalysts,
the
recently
emerged
nanoarchitectonics
approach
holds
great
promise.
Here,
we
report
nanohouse-like
S-scheme
heterjunction
photocatalyst
with
high
photocatalytic
NitRR
performance.
The
nano-house
has
floor
of
plate-like
metal
organic
framework-based
(NH
Reactive
oxygen
species
(ROS)
are
highly
reactive,
making
them
useful
for
environmental
and
health
applications.
Traditionally,
photocatalysts
piezocatalysts
have
been
used
to
generate
ROS,
but
their
utilization
is
limited
by
various
physical
constraints.
This
study
introduces
metal-organic
frameworks
(MOFs)
as
modern
thermocatalysts
efficiently
producing
hydrogen
peroxide
(H
2
O
)
from
small
temperature
differences.
Temperature
fluctuations,
abundant
in
daily
life,
offer
tremendous
potential
practical
thermocatalytic
As
proof
of
concept,
MOF
materials
coated
onto
carbon
fiber
fabric
(MOF@CFF)
created
a
antibacterial
filter.
The
compared
three
different
MOFs
(CuBDC,
MOF-303,
ZIF-8)
with
bismuth
telluride
(Bi
Te
3
),
known
material.
ZIF-8
demonstrated
superior
H
generation
under
low-temperature
differences,
achieving
96%
activity
through
variation
cycles.
work
advances
thermoelectric
applications
MOFs,
enabling
real-time
purification
disinfection
generation.
findings
open
interdisciplinary
avenues
leveraging
effects
catalysis
technologies.
Advanced Energy Materials,
Год журнала:
2024,
Номер
14(30)
Опубликована: Май 17, 2024
Abstract
Organic
supermolecules
have
shown
great
promise
for
photocatalytic
hydrogen
peroxide
(H
2
O
)
production.
However,
the
limitation
of
intramolecular
charge
separation
efficiency
is
still
a
crucial
scientific
problem.
In
this
study,
novel
acceptor–donor–acceptor
(A–D–A)
type
naphthalenediimide
supramolecule
(SA‐NDI)
successfully
designed
overcoming
fundamental
issues
in
organic
supermolecule.
Composed
one
electron‐rich
core
(naphthalenediimide)
and
two
electron‐poor
units
(aminopyridine),
possesses
strong
transfer
ability.
Meanwhile,
SA‐NDI
has
an
obviously
stronger
internal
electric
field,
which
2.83
times
higher
than
that
D–A
supramolecule.
The
A–D–A
efficiently
accelerates
separation,
so
electron
quickly
migrates
to
acceptor
two‐electron
oxygen
reduction
reaction.
shows
excellent
H
accumulation
ability
(13.7
m
stable
cyclic
time
above
120
h.
catalyst
exhibits
superior
solar‐to‐chemical
conversion
1.03%
under
simulated
solar
irradiation.
This
work
provides
entirely
new
idea
design
with
efficient
monomer.
Angewandte Chemie,
Год журнала:
2024,
Номер
136(38)
Опубликована: Июнь 25, 2024
Abstract
Photocatalytic
nitrate
reduction
reaction
(NitRR)
is
a
promising
route
for
environment
remediation
and
sustainable
ammonia
synthesis.
To
design
efficient
photocatalysts,
the
recently
emerged
nanoarchitectonics
approach
holds
great
promise.
Here,
we
report
nanohouse‐like
S‐scheme
heterjunction
photocatalyst
with
high
photocatalytic
NitRR
performance.
The
nano‐house
has
floor
of
plate‐like
metal
organic
framework‐based
(NH
2
‐MIL‐125),
on
which
another
Co(OH)
nanosheet
grown
while
ZIF‐8
hollow
cages
are
also
constructed
as
surrounding
wall/roof.
Experimental
simulation
results
indicate
that
positively
charged,
highly
porous
hydrophobic
wall
can
modulate
in
nanohouse
by
(i)
NO
3
−
enrichment/NH
4
+
discharge
(ii)
suppression
competitive
hydrogen
evolution
reaction.
In
combination
enhanced
electron‐hole
separation
strong
redox
capability
NH
‐MIL‐125@Co(OH)
confined
nano‐house,
designed
delivers
an
yield
2454.9
μmol
g
−1
h
apparent
quantum
8.02
%
at
400
nm
pure
water.
Our
work
provides
new
insights
into
principles
advanced
photocatalyst.
ACS Nano,
Год журнала:
2024,
Номер
18(42), С. 29233 - 29247
Опубликована: Окт. 10, 2024
Artificial
photosynthesis
of
hydrogen
peroxide
(H2O2)
presents
a
promising
environmentally
friendly
alternative
to
the
industrial
anthraquinone
process.
This
work
designed
ultrathin
metal–organic
framework
(MOF)
nanosheets
on
which
porphyrin
ligand
as
an
electron
donor
(D)
and
(AQ)
acceptor
(A)
are
integrated
D–A
complexes.
The
component
allows
MOF
absorb
full-spectrum
solar
light
while
AQ
motif
promotes
central
aluminum
ion
coordination,
hindering
layer
stacking
achieve
thickness
1.0
nm.
design
facilitates
separation
electrons
from
skeleton
motif,
induces
direct
two-electron
oxygen
reduction
reaction
(ORR)
mediated
by
reversible
redox
couple
AQ-AQH2
multielectron
water
oxidation
(WOR)
driven
holes
remaining
part.
In
O2-saturated
water,
outperformed
AQ-free
bulk
multilayered
counterparts
2.9
2.6
times
in
H2O2
production,
respectively,
achieving
apparent
quantum
yield
4.8%
at
420
It
also
surpasses
other
benchmark
photocatalysts,
including
typical
photocatalyst,
MIL-125-NH2,
organic
polymeric
photocatalysts.
photocatalyst
generated
via
both
ORR
major
path
WOR
minor
path.
approach
strategy
for
rational
efficient
nanostructured
photocatalysts
fuels
chemicals.
