Advanced Powder Materials,
Journal Year:
2022,
Volume and Issue:
2(1), P. 100073 - 100073
Published: June 30, 2022
The
development
of
distinguished
photocatalysts
with
high
photo-carrier
disassociation
and
photo-redox
power
for
efficient
elimination
pollutants
in
water
is
great
significance
but
still
a
grand
challenge.
Herein,
novel
Cd0.5Zn0.5S/Bi2WO6
S-scheme
heterojunction
was
built
up
by
integrating
Cd0.5Zn0.5S
nanoparticles
on
Bi2WO6
microspheres
via
simple
route.
charge
transfer
mode
substantially
boosts
the
high-energetic
electrons/holes
spatial
detachment
conservation
(reduction)
(oxidation),
respectively,
as
well
effectively
suppresses
photo-corrosion
Cd0.5Zn0.5S,
rendering
superior
redox
ability.
optimal
achieves
exceptional
visible-light-driven
photocatalytic
tetracycline
degradation
Cr(VI)
reduction
efficiency,
3.2
(1.9)-time
33.6
(1.6)-time
stronger
than
that
neat
(Cd0.5Zn0.5S),
while
retaining
stability
reusability.
Quenching
test,
mass
spectrometry
analysis,
toxicity
assessment
based
Quantitative
Structure
Activity
Relationships.
calculation
unravel
prime
active
substances,
intermediates,
photo-degradation
pathway,
intermediate
eco-toxicity
process.
This
research
not
only
offers
potential
photocatalyst
aquatic
environment
protection
also
promotes
exploration
powerful
chalcogenides-based
protection.
Advanced Materials,
Journal Year:
2023,
Volume and Issue:
36(8)
Published: Nov. 22, 2023
Abstract
Semiconductor
photocatalytic
technology
holds
immense
promise
for
converting
sustainable
solar
energy
into
chemically
storable
energy,
with
significant
applications
in
the
realms
of
and
environment.
However,
inherent
issue
rapid
recombination
photogenerated
electrons
holes
hinders
performance
single
photocatalysts.
To
overcome
this
challenge,
construction
2D
S‐scheme
heterojunction
photocatalysts
emerges
as
an
effective
strategy.
The
deliberate
design
dimensionality
ensures
a
substantial
interfacial
area;
while,
charge
transfer
mechanism
facilitates
efficient
separation
maximizes
redox
capabilities.
This
review
commences
fresh
perspective
on
heterojunctions,
followed
by
comprehensive
exploration
preparation
methods
characterization
techniques.
Subsequently,
recent
advancements
are
summarized.
Notably,
behind
activity
enhancement
is
elucidated.
Finally,
prospects
development
presented.
eScience,
Journal Year:
2023,
Volume and Issue:
4(2), P. 100208 - 100208
Published: Nov. 3, 2023
Present
photocatalysts
for
the
synchronous
cleanup
of
pharmaceuticals
and
heavy
metals
have
several
drawbacks,
including
inadequate
reactive
sites,
inefficient
electron–hole
disassociation,
insufficient
oxidation
reduction
power.
In
this
research,
we
sought
to
address
these
issues
by
using
a
facile
solvothermal-photoreduction
route
develop
an
innovative
plasmonic
S-scheme
heterojunction,
Au/MIL-101(Fe)/BiOBr.
The
screened-out
Au/MIL-101(Fe)/BiOBr
(AMB-2)
works
in
durable
high-performance
manner
both
Cr(VI)
norfloxacin
(NOR)
eradication
under
visible
light,
manifesting
up
53.3
2
times
greater
NOR
abatement
rates,
respectively,
than
BiOBr.
Remarkably,
AMB-2's
ability
remove
Cr(VI)-NOR
co-existence
system
is
appreciably
better
sole-Cr(VI)
environment;
synergy
among
Cr(VI),
NOR,
AMB-2
results
utilization
photo-induced
carriers,
yielding
desirable
capacity
decontaminating
synchronously.
integration
MOF-based
heterojunctions
effect
contributes
markedly
reinforced
photocatalytic
increasing
number
active
augmenting
visible-light
absorbance,
boosting
efficient
disassociation
redistribution
powerful
photo-carriers,
elevating
generation
substances.
We
provide
details
mechanism,
decomposition
process,
bio-toxicity
intermediates.
This
synergistic
strategy
modifying
with
noble
metal
opens
new
horizons
devising
excellent
photosystems
environment
purification.
Advanced Energy Materials,
Journal Year:
2023,
Volume and Issue:
13(15)
Published: March 1, 2023
Abstract
Delicate
modulations
of
CO
2
activation
and
charge
carrier
separation/migration
are
challenging,
yet
imperative
to
augment
photoreduction
efficiency.
Herein,
by
supporting
diethylenetriamine
(DETA)‐functionalized
Cd
0.8
Zn
0.2
S
nanowires
on
the
exterior
surface
hollow
Co
9
8
polyhedrons,
hierarchical
@Cd
S‐DETA
nanocages
fabricated
as
an
S‐scheme
photocatalyst
for
reducing
protons
produce
syngas
(CO
H
).
The
amine
groups
strengthen
adsorption
,
while
“nanowire‐on‐nanocage”
heterostructure
with
interface
boosts
separation
transfer
photoinduced
charges.
Employing
Co(bpy)
3
2+
a
cocatalyst,
optimal
effectively
produces
in
rates
70.6
18.6
µmol
h
−1
(i.e.,
4673
1240
g
),
respectively,
affording
apparent
quantum
efficiency
9.45%
at
420
nm,
which
is
highest
value
under
comparable
conditions.
Ultraviolet
photoelectron
spectroscopy,
Kelvin
probe,
electron
spin
resonance
confirm
S‐schematic
charge‐transfer
process
photocatalyst.
key
COOH
*
species
responsible
‐to‐CO
reduction
detected
in‐situ
diffuse
reflectance
infrared
Fourier
transform
spectroscopy
endorsed
density
functional
theory
calculations,
thus
possible
mechanism
proposed.
Advanced Materials,
Journal Year:
2022,
Volume and Issue:
34(38)
Published: Aug. 9, 2022
Cooperative
coupling
of
photocatalytic
H2
O2
production
with
organic
synthesis
has
an
expansive
perspective
in
converting
solar
energy
into
storable
chemical
energy.
However,
traditional
powder
photocatalysts
suffer
from
severe
agglomeration,
limited
light
absorption,
poor
gas
reactant
accessibility,
and
reusable
difficulty,
which
greatly
hinders
their
large-scale
application.
Herein,
floatable
composite
are
synthesized
by
immobilizing
hydrophobic
TiO2
Bi2
O3
on
lightweight
polystyrene
(PS)
spheres
via
hydrothermal
photodeposition
methods.
The
not
only
transparent,
but
also
upgrade
the
contact
between
reactants
photocatalysts.
Thus,
step-scheme
(S-scheme)
/Bi2
photocatalyst
exhibits
a
drastically
enhanced
yield
1.15
mm
h-1
decent
furfuryl
alcohol
conversion
to
furoic
acid
synchronously.
Furthermore,
S-scheme
mechanism
dynamics
systematically
investigated
situ
irradiated
X-ray
photoelectron
spectroscopy
femtosecond
transient
absorption
spectrum
analyses.
In
Fourier
transform
infrared
density
functional
theory
calculations
reveal
evolution.
ingenious
design
furnishes
insight
maximizing
reaction
kinetics
provides
new
route
for
highly
efficient
heterogeneous
catalysis.
