Chemistry - A European Journal,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Oct. 2, 2024
Abstract
The
utilization
of
CO
2
,
H
O,
and
solar
energy
is
regarded
as
a
sustainable
route
for
converting
into
chemical
feedstocks,
paving
the
way
carbon
neutrality
reclamation.
However,
simultaneous
photocatalytic
reduction
O
oxidation
under
non‐sacrificial
ambient
conditions
still
significant
challenge.
Researchers
have
carried
out
extensive
exploration
achieved
dramatic
developments
in
this
area.
In
review,
we
first
primarily
elucidate
principles
two
half‐reactions
conversion
with
i.
e.,
by
photo‐generated
electrons
protons,
holes
without
sacrificial
agents.
Subsequently,
strategies
to
promote
are
summarized,
including
vacancy/facet/morphology
design,
adjacent
redox
site
construction,
Z‐scheme
heterojunction
development.
Finally,
present
advanced
situ
characterizations
future
perspectives
field.
This
review
aims
provide
fresh
insights
effectively
conditions.
Journal of Materials Chemistry A,
Journal Year:
2024,
Volume and Issue:
12(35), P. 23577 - 23589
Published: Jan. 1, 2024
The
synergistic
effect
of
PdCu
alloys
on
TiO
2
nanosheets
expands
the
light-absorption
range,
improves
adsorption
CO
and
H
O,
accelerates
photogenerated
electron
migration,
resulting
in
an
increased
CH
4
yield
with
a
selectivity
98.7%.
The Journal of Physical Chemistry Letters,
Journal Year:
2024,
Volume and Issue:
15(26), P. 6841 - 6851
Published: June 25, 2024
Photocatalytic
water
splitting
to
spontaneously
produce
H2
and
O2
is
a
long-standing
goal
in
solar
energy
conversion,
presenting
significant
challenge
without
using
sacrificial
electron
donors
or
external
biases.
Inspired
by
natural
photosynthesis,
the
design
of
artificial
Z-scheme
photocatalytic
systems
at
forefront
this
field.
These
achieve
higher
redox
potential
separating
photogenerated
electrons
holes
through
fast
interlayer
recombination
process
between
valence
conduction
band
edges.
photocatalysis
involves
two
different
semiconductors
with
distinct
bandgap
energies.
Here,
we
explore
based
on
two-dimensional
(2D)
heterostructures
composed
carbon,
nitrogen,
similar
main
group
elements.
The
advantages
disadvantages
these
are
discussed,
focus
enhancing
their
efficiency
strategic
design.
Special
emphasis
placed
dynamics
excited
charge
carrier
transfer
processes,
which
crucial
for
developing
efficient
overall
splitting.
Inorganic Chemistry,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Feb. 5, 2025
The
solar-driven
photocatalytic
reduction
of
CO2
into
fuels
using
a
C3N4-based
photocatalyst
has
shown
great
application
potential
in
addressing
challenges
related
to
energy
and
emission.
However,
this
process
suffers
from
severe
charge
recombination
sluggish
H2O
oxidation
kinetics,
resulting
low
efficiency.
In
study,
2D/2D
S-scheme
heterojunction
by
combining
oxygen
vacancy-rich
BiVO4
nanoflakes
with
C3N4
nanosheets
(denoted
as
Ov-BVO/CN)
was
fabricated
mitigate
the
aforementioned
issues,
where
serves
water
booster
center.
By
leveraging
synergistic
effects
lamellar
morphology
an
charge-transfer
pathway,
Ov-BVO/CN
achieves
efficient
separation
while
maintaining
maximized
redox
capabilities.
Moreover,
theoretical
calculations
demonstrated
that
Ov
on
surface
reverses
rate-limiting
step
reducing
its
barrier,
thereby
accelerating
reaction
kinetics.
optimized
demonstrates
remarkably
improved
evolution
rates
for
CO
(13.8
μmol
g–1
h–1)
CH4
(5.9
h–1),
which
are
approximately
3.8
3.5
times
higher
than
those
CN
under
visible-light
irradiation,
respectively.
This
work
highlights
design
fabrication
highly
heterostructure
photocatalysts
photoreduction.
Small,
Journal Year:
2024,
Volume and Issue:
20(46)
Published: Aug. 3, 2024
Abstract
Selective
photocatalytic
CO
2
reduction
to
high‐value
hydrocarbons
using
graphitic
carbon
nitride
(g–C
3
N
4
)
polymer
holds
great
practical
significance.
Herein,
the
cyano‐functionalized
g–C
(CN–g–C
with
a
high
local
electron
density
site
is
successfully
constructed
for
selective
photoreduction
CH
and
C
H
.
Wherein
potent
electron‐withdrawing
cyano
group
induces
giant
internal
electric
field
in
CN–g–C
,
significantly
boosting
directional
migration
of
photogenerated
electrons
concentrating
them
nearby.
Thereby,
around
its
created.
Moreover,
this
structure
can
also
effectively
promote
adsorption
activation
while
firmly
anchoring
*CO
intermediates,
facilitating
their
subsequent
hydrogenation
coupling
reactions.
Consequently,
O
as
reducing
agent,
achieves
efficient
activity,
maximum
rates
6.64
1.35
µmol
g
‐1
h
respectively,
69.3
53.8
times
higher
than
bulk
nanosheets.
In
short,
work
illustrates
importance
constructing
hydrocarbons.
Catalysts,
Journal Year:
2025,
Volume and Issue:
15(1), P. 95 - 95
Published: Jan. 20, 2025
In
this
study,
a
novel
Z-scheme
heterojunction
photocatalyst
was
developed
by
integrating
g-C3N4
nanoplates
into
ZnIn2S4
microspheres.
X-ray
photoelectron
spectroscopy
analysis
revealed
directional
electron
transfer
from
to
upon
formation.
Under
irradiation,
electrochemical
tests
and
paramagnetic
resonance
demonstrated
significantly
enhanced
charge
generation
separation
efficiencies
in
the
ZnIn2S4/g-C3N4
composite,
accompanied
reduced
resistance.
photocatalytic
CO2
reduction,
composite
achieved
highest
CO
yield,
1.92
5.83
times
higher
than
those
of
pristine
ZnIn2S4,
respectively,
with
notable
selectivity
91.3%
compared
H2
(8.7%).
The
mechanism,
confirmed
work,
effectively
preserved
strong
redox
capabilities
photoinduced
carriers,
leading
superior
performance
excellent
long-term
stability.
This
study
offers
valuable
insights
design
development
g-C3N4-based
heterojunctions
for
efficient
solar-driven
reduction.
Catalysts,
Journal Year:
2025,
Volume and Issue:
15(2), P. 184 - 184
Published: Feb. 17, 2025
The
photocatalytic
CO2
reduction
(PCR)
into
value-added
fuels
offers
a
promising
solution
to
energy
shortages
and
the
greenhouse
effect,
thanks
mild
conditions
environmental
sustainability.
However,
activation
of
is
challenging
because
thermodynamic
stability
chemical
inertness
molecules,
which
significantly
restricts
efficiency
PCR.
Cobalt
carbonate
hexahydrate
(CCH),
known
for
its
excellent
adsorption
properties,
faces
challenges
like
poor
electron–hole
separation
photoresponse.
To
address
these
issues,
graphitic
carbon
nitride
(CN)
as
“pseudo-sensitizer”
was
introduced
system
by
an
in
situ
heterojunction
synthesis
strategy
produce
CCH/CN
photocatalyst,
where
Co–N
bonds
formed
between
CCH
CN
enhance
charge
carrier
migration
lower
interfacial
resistance.
catalyst
achieved
CO
production
rate
19.65
μmol
g−1
h−1,
outperforming
CCH,
CN,
mechanically
mixed
sample
(Mix)
7.74,
2.31,
1.77
times,
respectively.
This
work
demonstrates
effective
designing
catalysts
improve
visible
light
utilization
transfer
efficient
reduction.
