Inorganic Chemistry,
Год журнала:
2023,
Номер
62(17), С. 6843 - 6850
Опубликована: Апрель 20, 2023
Layered
double
hydroxide
(LDH)-based
photocatalysts
have
attracted
more
attention
in
photocatalysis
due
to
their
low
cost,
wide
band
gaps,
and
adjustable
photocatalytic
active
sites;
however,
photogenerated
carrier
separation
efficiency
limits
efficiency.
Herein,
a
NiAl-LDH/Ni-doped
Zn0.5Cd0.5S
(LDH/Ni-ZCS)
S-scheme
heterojunction
is
rationally
designed
constructed
from
kinetically
thermodynamically
favorable
angles.
The
15%
LDH/1%
Ni-ZCS
displays
comparable
hydrogen
evolution
(PHE)
activity
with
rate
of
6584.0
μmol
g-1
h-1,
which
exceeds
by
∼6.14-
∼1.73-fold
those
ZCS
1%
Ni-ZCS,
respectively,
outperforms
most
the
previously
reported
LDH-based
metal
sulfide-based
photocatalysts.
In
addition,
apparent
quantum
yield
reaches
12.1%
at
420
nm.
situ
X-ray
photoelectron
spectroscopy,
photodeposition,
theoretical
calculation
reveal
specific
transfer
path
carriers.
On
this
basis,
we
propose
possible
mechanism.
fabrication
not
only
accelerates
carriers
but
also
decreases
activation
energy
H2
improves
redox
capacity.
Moreover,
there
are
huge
amounts
hydroxyl
groups
distributed
on
surface
photocatalysts,
highly
polar
easy
combine
H2O
large
dielectric
constant
form
bond,
can
further
accelerate
PHE.
eScience,
Год журнала:
2023,
Номер
4(2), С. 100208 - 100208
Опубликована: Ноя. 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.
Ecotoxicology and Environmental Safety,
Год журнала:
2024,
Номер
269, С. 115927 - 115927
Опубликована: Янв. 1, 2024
The
greenest
environmental
remediation
way
is
the
photocatalytic
degradation
of
organic
pollutants.
However,
limited
applications
are
due
to
poor
sunlight
absorption
and
photogenerated
charge
carriers'
recombination.
These
limitations
can
be
overcome
by
introducing
anion
vacancy
(AV)
(O,
S,
N,
C,
Halogen)
defects
in
semiconductors
that
enhance
light
harvesting,
facilitate
separation,
modulate
electronic
structure,
produce
reactive
radicals.
In
continuing
part
A
this
review,
part,
we
summarized
recent
AVs'
research,
including
halogen
vacancies
on
boosted
features
semiconductor
materials,
like
metal
oxides/sulfides,
oxyhalides,
nitrides
detail.
Also,
outline
recently
developed
AV
designs
for
creating
analysis
methods
mechanisms
AV-mediated
photocatalysts
reviewed.
engineering
photocatalysts'
challenges
development
prospects
illustrated
get
a
promising
research
direction.
Energy & Fuels,
Год журнала:
2024,
Номер
38(9), С. 7637 - 7664
Опубликована: Апрель 12, 2024
In
recent
decades,
a
great
interest
in
photocatalytic
water
splitting
has
been
due
to
the
importance
of
sunlight
hydrogen
production
as
renewable
energy
source
reduce
global
warming
effects.
The
applications
metal
sulfide
semiconductors
photocatalysts,
chalcogenide
compounds,
with
advantages
wide
range
for
light
harvesting
and
tunable
bandgap,
may
be
restricted
by
limited
active
sites,
poor
conductivity,
photo
corrosion,
charge
recombination.
sulfur
vacancy
(SV)
effectively
addresses
these
issues
generates
H2
O2
attaining
adequate
water-splitting
because
improved
optoelectronic
features.
This
review
article
aims
comprehensively
highlight
synergistic
roles
SV
sulfides
amended
overall
activity.
SV-modulated
sulfides'
features
are
deliberated,
followed
different
advanced
synthetic
techniques
effectual
defect
generation.
specific
aspects
refining
optical
range,
dynamics
carrier,
photoinduced
surface
chemical
reactions
deeply
described
applications.
Finally,
summarized
vouchsafing
outlooks
opportunities
confronting
S-vacancy
engineered
sulfides-based
photocatalysts
elucidated.
It
would
expected
hoped
that
this
will
help
researchers
design/fabricate
better
sulfide-based
systems.
