eScience,
Journal Year:
2024,
Volume and Issue:
unknown, P. 100242 - 100242
Published: Jan. 1, 2024
Bismuth
vanadate
(BiVO4)
is
a
promising
photoanode
material
for
photoelectrochemical
(PEC)
water
oxidation.
However,
its
performance
greatly
hindered
by
poor
bulk
and
interfacial
charge
transfer.
Herein,
to
address
this
issue,
iron
doped
vanadyl
phosphate
(Fe:VOPO4)
was
grafted
on
molybdenum
BiVO4
(Mo:BiVO4)
significantly
enhancing
transfer
oxygen
evolution
kinetics
simultaneously.
Consequently,
the
resultant
Fe:VOPO4/Mo:BVO4
exhibits
remarkable
photocurrent
density
of
6.59
mA
cm−2
at
1.23
V
versus
reversible
hydrogen
electrode
(VRHE)
under
AM
1.5G
illumination,
over
approximately
5.5
times
as
high
that
pristine
BiVO4.
Systematic
studies
have
demonstrated
hopping
activation
energy
small
polarons
reduced
due
Mo
doping,
resulting
in
accelerated
More
importantly,
deposition
Fe:VOPO4
promotes
between
Mo:BiVO4
via
construction
V−O−V
P−O
bonds,
addition
facilitating
splitting
kinetics.
This
work
provides
general
strategy
optimizing
process,
especially
interface
photoanodes
cocatalysts.
Angewandte Chemie International Edition,
Journal Year:
2023,
Volume and Issue:
62(15)
Published: Jan. 23, 2023
Abstract
Photocatalytic
water
splitting
and
carbon
dioxide
(CO
2
)
reduction
provide
promising
solutions
to
global
energy
environmental
issues.
In
recent
years,
metal‐organic
frameworks
(MOFs),
a
class
of
crystalline
porous
solids
featuring
well‐defined
tailorable
structures
as
well
high
surface
areas,
have
captured
great
interest
toward
photocatalytic
CO
reduction.
this
review,
the
semiconductor‐like
behavior
MOFs
is
first
discussed.
We
then
summarize
advances
in
over
MOF‐based
materials
focus
on
unique
advantage
for
clarifying
structure‐property
relationship
photocatalysis.
addition,
some
representative
characterization
techniques
been
presented
unveil
kinetics
reaction
intermediates
systems.
Finally,
challenges,
perspectives
future
directions
are
proposed.
Chemical Society Reviews,
Journal Year:
2024,
Volume and Issue:
53(6), P. 3002 - 3035
Published: Jan. 1, 2024
The
present
review
summarizes
the
current
state-of-the-art
in
MOF-based
heterojunctions
three
important
photocatalytic
processes:
hydrogen
evolution
reaction,
CO
2
photoreduction
and
photodegradation
of
dyes.
Nature Communications,
Journal Year:
2023,
Volume and Issue:
14(1)
Published: March 16, 2023
Photocatalytic
CO2
conversion
promises
an
ideal
route
to
store
solar
energy
into
chemical
bonds.
However,
sluggish
electron
kinetics
and
unfavorable
product
selectivity
remain
unresolved
challenges.
Here,
ionic
liquid,
1-ethyl-3-methylimidazolium
tetrafluoroborate,
borate-anchored
Co
single
atoms
were
separately
loaded
on
ultrathin
g-C3N4
nanosheets.
The
optimized
nanocomposite
photocatalyst
produces
CO
CH4
from
water
under
UV-vis
light
irradiation,
exhibiting
a
42-fold
photoactivity
enhancement
compared
with
nearly
100%
towards
reduction.
Experimental
theoretical
results
reveal
that
the
liquid
extracts
electrons
facilitates
reduction,
whereas
trap
holes
catalyze
oxidation.
More
importantly,
maximum
transfer
efficiency
for
photoreduction,
as
measured
in-situ
μs-transient
absorption
spectroscopy,
is
found
be
35.3%,
owing
combined
effect
of
atoms.
This
work
offers
feasible
strategy
efficiently
converting
valuable
chemicals.
Angewandte Chemie International Edition,
Journal Year:
2022,
Volume and Issue:
61(16)
Published: Jan. 31, 2022
Abstract
The
photocatalytic
conversion
of
solar
energy
offers
a
potential
route
to
renewable
energy,
and
its
efficiency
relies
on
effective
charge
separation
in
nanostructured
photocatalysts.
Understanding
the
charge‐separation
mechanism
is
key
improving
performance
this
has
now
been
enabled
by
advances
spatially
resolved
surface
photovoltage
(SRSPV)
method.
In
Review
we
highlight
progress
made
SRSPV
mapping
distributions
at
nanoscale
determining
driving
forces
heterogeneous
photocatalyst
particles.
We
discuss
how
arising
from
built‐in
electric
field,
diffusion,
trapping
can
be
exploited
optimized
through
design.
also
importance
asymmetric
engineering
photocatalysts
for
separation.
Finally,
provide
an
outlook
further
opportunities
that
arise
leveraging
these
insights
guide
rational
design
advance
imaging
technique
expand
knowledge
