Small,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Feb. 12, 2025
Abstract
The
rapid
growth
of
the
electric
vehicle
industry
has
driven
up
nickel
demand
for
batteries.
However,
release
various
metals
during
smelting
nickel‐containing
ore
leads
to
complex
multi‐metal
contaminated
wastewater.
Herein,
CaFe
layered
double
hydroxide
(denoted
as
CaFe)
is
synthesized
treatment
wastewater,
achieving
removal
efficiencies
98.0%,
98.6%,
100%,
and
100%
Co
2+
,
Ni
Cu
Zn
respectively.
quasi‐situ
X‐ray
diffraction
(XRD)
absorption
fine
structure
(XAFS)
results
indicate
formation
high‐entropy
LDH
CaCoNiCuZnFe
by
isomorphic
substitution
Ca
in
CaFe.
Meanwhile,
lattice
distortion
metal
vacancies
can
be
observed
due
introduction
with
different
ionic
radii
dissolution
.
Given
stability
abundant
active
sites
material,
shows
good
OER
performance
an
overpotential
310.7
mV
at
10
mA
cm
−2
long‐term
250
h.
Density
functional
theory
(DFT)
calculations
reveal
that
optimizes
intermediate
adsorption
energy
enhancing
M─O
covalency
vacancy
activates
oxygen
generating
non‐bonding
oxygen,
which
synergistically
triggers
mechanism
(LOM).
This
strategy
converts
wastewater
resources
into
valuable
products
achieves
dual
goals
environmental
remediation
resource
utilization.
Nature Communications,
Journal Year:
2025,
Volume and Issue:
16(1)
Published: Jan. 22, 2025
The
H2-evolution
kinetics
play
a
pivotal
role
in
governing
the
photocatalytic
hydrogen-evolution
process.
However,
achieving
precise
regulation
of
H-adsorption
and
H-desorption
equilibrium
(Hads/Hdes)
still
remains
great
challenge.
Herein,
we
propose
fine-tuning
d-p
hybridization
strategy
to
precisely
optimize
Hads/Hdes
Ni-Bx
modified
CdS
photocatalyst
(Ni-Bx/CdS).
X-ray
absorption
fine-structure
spectroscopy
theoretical
calculations
reveal
that
increasing
B-atom
amount
cocatalyst
gradually
strengthens
orbital
interaction
between
Ni3d
B2p,
resulting
consecutive
d-band
broadening
controllable
center
on
Ni
active
sites.
above
optimization
allows
for
modulation
dynamics
Ni-Bx/CdS,
ultimately
demonstrating
remarkable
activity
13.4
mmol
g-1
h-1
(AQE
=
56.1
%).
femtosecond
transient
further
confirms
rapid
electron-transfer
Ni-Bx/CdS
photocatalyst.
This
work
provides
insights
into
optimal
design
prospective
catalysts.
A
is
proposed
sites,
H-adsorption/desorption
balance
improving
H2
evolution
efficiency.
Science Advances,
Journal Year:
2025,
Volume and Issue:
11(2)
Published: Jan. 8, 2025
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.
Inorganic Chemistry,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Feb. 5, 2025
Hydrogen
peroxide
(H2O2)
artificial
photosynthesis
converts
low-density
solar
energy
into
storable
clean
chemical
energy,
which
is
an
important
hot
topic
in
green
chemistry.
Constructing
heterojunctions
effective
tactic
to
enhance
the
oxygen
reduction
kinetics
of
H2O2
photosynthesis,
however,
actual
source
activity
remains
ambiguous.
Here,
a
series
BiVO4@ZnIn2S4
hierarchical
(BZ-x,
x
=
0.4,
0.8,
1.2)
were
elegantly
designed
through
piecing
two-dimensional
(2D)
BiVO4
nanosheets
onto
surface
three-dimensional
(3D)
ZnIn2S4
flower-like
microspheres
by
straightforward
ethanol
ultrasound-induced
self-assembly
strategy.
These
BZ-x
photocatalysts
exhibit
significantly
enhanced
photocatalytic
production
rates
across
wide
pH
range
(3–13)
compared
with
those
pristine
and
ZnIn2S4,
optimal
BZ-0.8
showing
excellent
rate
as
high
1585.99
μmol
g–1
h–1.
Comprehensive
analysis
reveals
that
2D
3D
form
Z-scheme
heterojunction,
can
deliver
favorable
coupling
between
photogenerated
electrons
adsorption
O2
at
interface
heterojunctions,
thereby
accelerating
two-step
one-electron
kinetic
process.
This
study
provides
new
perspective
for
improving
introducing
heterojunction
strategies.
Advanced Energy Materials,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Feb. 13, 2025
Abstract
Developing
conductor‐mediated
S‐scheme
heterojunction
photocatalysts
imitating
natural
photosynthetic
systems
emerges
as
a
promising
approach
to
hydrogen
peroxide
(H
2
O
)
production.
However,
achieving
precise
coupling
between
two
semiconductors
with
charge
shuttle
and
modulating
the
interfacial
interactions
still
remain
significant
bottleneck.
Herein,
we
propose
catalyst
architecture
Cd
single
atom
mediated
formed
by
interfacing
CdS
TiO
nanoparticles.
This
exhibits
an
H
production
rate
high
60.33
µmol
g
−1
min
under
UV–vis
light
irradiation,
which
is
attributed
efficient
transport
at
interface
of
thanks
S‐scheme.
In‐situ
X‐ray
photoelectron
spectroscopy
(XPS)
electron
spin
resonance
(ESR)
spin‐trapping
tests
confirm
transfer
route.
Femtosecond
transient
absorption
(fs‐TA)
other
ex‐situ
characterizations
further
corroborate
across
interface.
work
offers
new
perspective
on
constructing
atoms
heterojunctions
enhance
photocatalytic
performance.
