Industrial & Engineering Chemistry Research,
Journal Year:
2024,
Volume and Issue:
63(10), P. 4329 - 4337
Published: Feb. 27, 2024
Solar
water
splitting
seems
promising
for
green
hydrogen
production,
but
it
is
still
at
the
lab-scale
level
with
TRL
values
of
1–3.
Among
various
solar
techniques,
photoelectrocatalytic
(PEC)
a
viable
and
emerging
technology
large-scale
application
utilization
photoelectrodes,
in
which
bismuth
vanadate
(BiVO4)
considered
material
photoanode
fabrication
due
to
its
narrow
band
gap
(∼2.4
eV)
higher
solar-to-hydrogen
(STH)
efficiency
∼9.2%.
With
this
perspective,
present
work,
large-area
BiVO4
electrodes
different
dimensions
(1,
4,
9,
16,
25
cm2)
were
fabricated
via
facile
electrodeposition
method,
followed
by
chemical–thermal
treatment,
PEC
performances
scaled-up
photoanodes
investigated
under
illumination
AM
1.5G
(30
mW
cm–2).
From
investigation,
clear
that
increasing
area
photoanode,
photocurrent
density
was
reduced
stepwise
resistance
FTO
substrate.
The
activity
enhanced
incorporation
Ag-conductive
line;
moreover,
effect
Ag
line
patterns
(line
grid)
also
investigated.
them,
(25
cm2-Grid)
delivered
0.21
mA
cm–2
+1.23
VRHE,
1.5-fold
than
cm2).
Further,
toward
sulfite
oxidation;
compared
oxidation,
loss
reduced.
0.61
cm–2,
∼3-fold
oxidation.
Hence,
prototype
cell
constructed
production
delivers
theoretical
H2
rate
∼225
μmol
h–1
(∼9
h–1)
+1.0
VPt
these
results,
claimed
oxidation
more
effective
production.
Catalysts,
Journal Year:
2023,
Volume and Issue:
13(7), P. 1102 - 1102
Published: July 14, 2023
Semiconductor-based
photocatalytic
reactions
are
a
practical
class
of
advanced
oxidation
processes
(AOPs)
to
address
energy
scarcity
and
environmental
pollution.
By
utilizing
solar
as
clean,
abundant,
renewable
source,
this
process
offers
numerous
advantages,
including
high
efficiency,
eco-friendliness,
low
cost.
In
review,
we
present
several
methods
construct
various
photocatalyst
systems
with
excellent
visible
light
absorption
efficient
charge
carrier
separation
ability
through
the
optimization
materials
design
reaction
conditions.
Then
it
introduces
fundamentals
photocatalysis
in
both
clean
generation
remediation.
other
parts,
introduce
approaches
enhance
activity
by
applying
different
strategies,
semiconductor
structure
modification
(e.g.,
morphology
regulation,
co-catalysts
decoration,
doping,
defect
engineering,
surface
sensitization,
heterojunction
construction)
tuning
optimizing
conditions
(such
concentration,
initial
contaminant
pH,
temperature,
intensity,
charge-carrier
scavengers).
Then,
comparative
study
on
performance
recently
examined
photocatalysts
applied
production
remediation
will
be
discussed.
To
realize
these
goals,
H2
via
water
splitting,
CO2
reduction
value-added
products,
dye,
drug
photodegradation
lessen
toxic
chemicals,
presented.
Subsequently,
report
dual-functional
for
simultaneous
pollutant
reactions.
brief
discussion
about
industrial
economical
applications
is
described.
The
follows
introducing
application
artificial
intelligence
machine
learning
selection
an
innovative
issues.
Finally,
summary
future
research
directions
toward
developing
significantly
improved
efficiency
stability
provided.
Advanced Powder Materials,
Journal Year:
2023,
Volume and Issue:
3(1), P. 100140 - 100140
Published: June 5, 2023
Surface
charge
localization
and
inferior
transfer
efficiency
seriously
restrict
the
supply
of
reactive
hydrogen
reaction
dynamics
CO2
photoreduction
performance
photocatalysts.
Herein,
chemically
bonded
BiVO4/Bi19Cl3S27
(BVO/BCS)
S-scheme
heterojunction
with
a
strong
internal
electric
field
is
designed.
Experimental
density
function
theory
calculation
results
confirm
that
elaborated
accelerates
vectorial
migration
photogenerated
charges
from
BiVO4
to
Bi19Cl3S27
via
interfacial
chemical
bonding
interactions
(i.e.,
Bi-O
Bi-S
bonds)
between
Bi
atoms
BVO
S
BCS
or
O
under
light
irradiation,
breaking
barrier
surface
Bi19Cl3S27,
further
decreasing
energy
generation,
absorption
activation.
The
separation
carriers
much
more
efficient
counterpart
individual
in
BVO/BCS
system.
As
result,
exhibits
significantly
improved
continuous
photocatalytic
for
reduction
24
h
CO
yield
reaches
678.27
μmol·g−1.
This
work
provides
an
atomic-level
insight
into
kinetics
mechanism
heterojunction.
Nano Letters,
Journal Year:
2024,
Volume and Issue:
24(20), P. 6051 - 6060
Published: April 29, 2024
Photoelectrochemical
(PEC)
cells
provide
a
promising
solution
for
the
synthesis
of
hydrogen
peroxide
(H2O2).
Herein,
an
integrated
photocathode
p-type
BiVO4
(p-BVO)
array
with
tetragonal
zircon
structure
coupled
different
metal
oxide
(MOx,
M
=
Sn,
Ti,
Ni,
and
Zn)
heterostructure
NiNC
cocatalyst
(p-BVO/MOx/NiNC)
was
synthesized
PEC
oxygen
reduction
reaction
(ORR)
in
production
H2O2.
The
p-BVO/SnO2/NiNC
achieves
rate
65.46
μmol
L–1
h–1
H2O2
Faraday
efficiency
(FE)
76.12%.
Combined
generation
water
oxidation
from
n-type
Mo-doped
(n-Mo:BVO)
photoanode,
unbiased
photoelectrochemical
cell
composed
n-Mo:BVO
photoanode
total
FE
97.67%
generation.
large
area
BiVO4-based
tandem
3
×
cm2
can
reach
yield
338.84
L–1.
This
work
paves
way
rational
design
fabrication
artificial
photosynthetic
liquid
solar
fuel.
ACS Applied Energy Materials,
Journal Year:
2024,
Volume and Issue:
7(3), P. 906 - 918
Published: Jan. 12, 2024
In
this
study,
we
developed
an
approach
to
enhance
the
separation
and
transfer
of
charge
carriers
for
photoelectrochemical
water
splitting
in
solar-driven
hydrogen
production.
We
achieved
by
designing
a
highly
efficient
Z-scheme
TiO2/g-C3N4/ZnO
photoanode.
The
process
involved
electrodepositing
thin
TiO2
layer
on
FTO
optimizing
situ
ZnO
implantation
onto
g-C3N4.
These
composites
were
confirmed
XRD,
SEM,
EDX,
TEM
measurements.
growth
g-C3N4
resulted
strong
chemical
adhesion
between
interface
g-C3N4,
as
supported
XPS
data,
increased
active
surface
area,
demonstrated
BET.
composition
facilitated
rapid
retarded
change
recombination
through
directional
migration
decreased
resistance,
evidenced
PEIS
TRPL
Our
airbrushing
procedure
fabricating
g-C3N4/ZnO
composite
also
enhanced
collection
efficiency,
enabling
us
construct
high-performance
Z-scheme-type
route
was
verified
EPR
spectroscopy
trapping
radicals
generated
charges
holes.
PEC-WS
measurements
showed
that
heterostructure
improved
produced
photocurrent
about
160-,
40-,
20-,
8-,
2-,
2-fold,
relative
pristine
nanorods,
ZnO/g-C3N4
composite,
TiO2,
TiO2/ZnO,
TiO2/g-C3N4,
respectively,
versus
reversible
electrode
(RHE)
at
1.23
V.
carriers'
injection
fabrication
ternary
photoanode
remarkably
performance.
DFT
results
contributed
deeper
understanding
mechanism
photocatalytic
as-fabricated
heterojunction
promoted
separation/transfer
efficiency
photogenerated
carriers,
thereby
promoting
activity
process.
This
work
could
pave
way
better
ternary-based
photoanodes.
