Advanced Functional Materials,
Год журнала:
2024,
Номер
34(40)
Опубликована: Июль 1, 2024
Abstract
Rare
earth
vanadates
are
promising
for
solar‐to‐fuel
conversions,
yet
their
photocatalytic
efficiency
is
limited
by
the
substantial
recombination
of
photo‐generated
carriers.
Constructing
heterojunctions
recognized
as
an
effective
approach
to
improving
charge
carrier
separation
in
vanadates.
Nonetheless,
inefficient
transfer
often
results
from
poor
quality
interfaces
and
non‐directional
within
these
heterojunctions.
Herein,
S‐scheme
AgInS
2
/CeVO
4
@Biochar
x
(AIS/CV@C
)
heterojunction
photocatalyst
designed
synthesized
through
a
straightforward
freeze‐drying
calcination
three‐step
process,
aimed
at
co‐production
xylonic
acid
carbon
monoxide
(CO)
xylose.
The
AIS/CV@C
achieves
optimal
yield
67.74%
CO
release
29.76
µmol
enhanced
performance
attributed
three
key
factors:
I)
high‐quality
interface
intimate
contact
significantly
reduce
undesirable
carriers
recombination,
II)
staggered
band
structures
directed
notably
improve
spatial
separation/migration,
III)
incorporation
biochar
boosts
conductivity
heterojunction.
This
work
presents
method
fabricating
vanadate
heterojunctions,
highlighting
importance
interfacial
amplifying
performance.
Journal of Materials Chemistry C,
Год журнала:
2024,
Номер
12(28), С. 10646 - 10659
Опубликована: Янв. 1, 2024
Pine
needle
W
18
O
49
–TiO
2
(R)–TiO
(A)
ternary
heterojunctions
with
dual
defects
were
firstly
designed,
and
they
can
offer
complete
naphthalene
degradation
owing
to
their
synergistic
effects
via
the
S-scheme
mechanism.
Scientific Reports,
Год журнала:
2024,
Номер
14(1)
Опубликована: Июнь 27, 2024
Abstract
Cerium
vanadate/modified
bentonite
(CeVO
4
/mbt)
nanocomposite
with
different
composition
percentages
was
synthesized
through
a
simple
one-step
hydrothermal
method
at
180
℃,
and
then
its
photocatalytic
activity
evaluated
by
decolorizing
methylene
blue
(MB)
in
an
aqueous
solution
under
light
exposure.
In
order
to
increase
the
surface
area
as
important
parameter
processes,
modified
ball
mill
method.
The
structural
optical
properties
of
composites
were
determined
XRD,
FT-IR,
DRS,
FESEM,
EDS,
BET
measurements.
XRD
EDS
results
confirmed
successful
synthesis
pure
CeVO
.
FESEM
images
mapping
showed
proper
distribution
rice-like
nanoparticles
on
bentonite.
removal
efficiency
MB
only
0.1
g
/mbt
15
min
about
99%,
which
is
significant
compared
neat
30%
57%.
mentioned
followed
first-order
kinetics,
had
reaction
rate
constant
equal
0.1483
–1
,
acceptable
stability
five
consecutive
cycles.
Advanced Functional Materials,
Год журнала:
2024,
Номер
34(40)
Опубликована: Июль 1, 2024
Abstract
Rare
earth
vanadates
are
promising
for
solar‐to‐fuel
conversions,
yet
their
photocatalytic
efficiency
is
limited
by
the
substantial
recombination
of
photo‐generated
carriers.
Constructing
heterojunctions
recognized
as
an
effective
approach
to
improving
charge
carrier
separation
in
vanadates.
Nonetheless,
inefficient
transfer
often
results
from
poor
quality
interfaces
and
non‐directional
within
these
heterojunctions.
Herein,
S‐scheme
AgInS
2
/CeVO
4
@Biochar
x
(AIS/CV@C
)
heterojunction
photocatalyst
designed
synthesized
through
a
straightforward
freeze‐drying
calcination
three‐step
process,
aimed
at
co‐production
xylonic
acid
carbon
monoxide
(CO)
xylose.
The
AIS/CV@C
achieves
optimal
yield
67.74%
CO
release
29.76
µmol
enhanced
performance
attributed
three
key
factors:
I)
high‐quality
interface
intimate
contact
significantly
reduce
undesirable
carriers
recombination,
II)
staggered
band
structures
directed
notably
improve
spatial
separation/migration,
III)
incorporation
biochar
boosts
conductivity
heterojunction.
This
work
presents
method
fabricating
vanadate
heterojunctions,
highlighting
importance
interfacial
amplifying
performance.
