A
novel
S-scheme
BiOCl/ZnCrZr-LBMO
heterojunction
was
constructed
and
characterized
by
XRD,
SEM,
TEM,
EDS
image,
XPS,
FTIR,
UV-Vis-DRS,
transient
photocurrent
response,
electrochemical
impedance
spectroscopy.
The
photocatalytic
activity
of
composites
investigated
bisphenol
(BPA)
degradation.
results
showed
that
the
degradation
rate
BPA
(15
μg/mL,
40
mL
sample
solution)
photo-catalyzed
composite
(reached
90.1%
after
60
min)
superior
to
those
BiOCl
22.8%
ZnCrZr-LBMO
53.5%
min).
constants
k
photocatalyzed
8.1,
2.8
times
according
pseudo-first-order
kinetic
model.
Furthermore,
possible
mechanism
pathways
were
proposed
analyzing
experiments
trapping
active
species
electron
spin-resonance
spectroscopy
in
process.
ACS Applied Energy Materials,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Nov. 18, 2024
Designing
potent
photocatalysts
for
water
splitting
is
one
of
the
foremost
challenges
in
operative
solar
energy
harvesting,
and
particularly,
exploring
Bi2WO6-based
remains
unresolved
due
to
its
intrinsic
drawbacks
fast
charge
recombination,
poor
conductivity,
inadequate
catalytic
efficiency.
Herein,
we
present
a
strategy
tune
band
gap
molybdenum-doped
Bi2WO6
(Mo-Bi2WO6)
by
an
amalgamation
conducting
polymer
nanofibers
efficient
hydrogen
generation
via
photocatalytic
splitting.
The
heterostructures
mimic
natural
photosynthetic
systems
S-scheme
transfer,
utilizing
component
harvest
photons
reduction
reaction
transition
metal
part
hasten
activities
facile
which
drastically
lowers
transport
resistance,
as
reflected
impedance
spectra.
optimal
content
2
wt
%
Mo-BiWO6
cocatalyst
reaches
remarkable
H2
production
rate
131
mmol
g–1
h–1
with
18%
higher
apparent
quantum
efficiency
than
pure
PPy.
Moreover,
heterostructure
displays
200-
fold
photocurrent
density
fortuitous
photostability.
presence
PPy
efficiently
suppresses
recombination
Mo-Bi2WO6
improves
interfacial
transfer
at
heterostructure.
dominant
factor
activity
proposed
based
on
femtosecond
transient
absorption
spectra
study
supported
further
time-resolved
photoluminescence
valence
X-ray
photoelectron
spectroscopy.
This
work
provides
approach
developing
high-performance,
noble-metal-free
visible
light-driven
solar-fuel
production.
A
novel
BiOCl/ZnCrZr-LBMO
S-scheme
heterojunction
was
constructed
and
characterized
by
XRD,
SEM,
TEM,
EDS
image,
XPS,
FTIR,
UV-Vis-DRS,
transient
photocurrent
response,
electrochemical
impedance
spectroscopy.
The
photocatalytic
activity
of
composites
investigated
bisphenol
(BPA)
degradation.
results
showed
that
the
degradation
rate
BPA
(15
μg/mL,
40
mL
sample
solution)
photo-catalyzed
composite
(reached
90.1%
after
60
min)
superior
to
those
BiOCl
22.8%
ZnCrZr-LBMO
53.5%
min).
constants
k
photocatalyzed
8.1,
2.8
times
according
pseudo-first-order
kinetic
model.
Furthermore,
possible
mechanism
pathways
were
proposed
analyzing
experiments
trapping
active
species
electron
spin-resonance
spectroscopy
in
process.
