Russian Chemical Reviews,
Journal Year:
2024,
Volume and Issue:
93(5), P. RCR5124 - RCR5124
Published: May 1, 2024
The
interest
of
the
global
scientific
community
in
problems
CO<sub>2</sub>
utilization
and
returning
to
carbon
cycle
has
markedly
increased
recent
years.
Among
various
transformation
processes,
photocatalytic
reduction
is
one
most
promising.
Currently,
much
attention
paid
photocatalysts
based
on
graphitic
nitride,
since
use
g-C<sub>3</sub>N<sub>4</sub>
makes
it
possible
perform
under
visible
or
solar
light
irradiation.
To
increase
efficiency,
subjected
modifications
with
popular
promising
approach
being
synthesis
composite
other
semiconductors
form
heterostructures.
Depending
type
semiconductor,
transfer
photogenerated
charge
carriers
these
systems
can
occur
by
mechanisms,
which
largely
determine
course
process
rates
formation
reaction
products.
This
review
addresses
studies
g-C<sub>3</sub>N<sub>4</sub>,
emphasis
placed
mechanisms
carrier
distribution
products
reduction.
<br>The
bibliography
includes
235
references.
Coordination Chemistry Reviews,
Journal Year:
2024,
Volume and Issue:
516, P. 215967 - 215967
Published: May 29, 2024
The
current
surge
in
atmospheric
CO2
poses
a
critical
challenge
to
global
climate
stability.
To
combat
this,
effective
strategies
for
capturing
and
utilizing
are
imperative.
Among
the
available
strategies,
photochemical
reduction
emerges
as
highly
promising
avenue.
However,
achieving
efficient
with
superior
product
selectivity
demands
well-designed
photocatalysts.
In
this
review,
we
provide
an
overview
of
recent
advancements
designing
fabricating
metal
oxide-based
heterojunction
nanocatalysts,
including
novel
types
such
high-entropy
oxides
MXenes,
over
past
five
years,
assessing
their
effectiveness
photocatalytic
reduction.
Emphasis
is
placed
on
understanding
roles
played
by
oxygen
vacancies
structural
defects
enhancing
adsorption
capacities
oxides.
Considering
role
carrier
recombination
processes
efficiency,
delve
into
formation
junction
potential,
well
separation
charge
carriers
at
interfaces,
elucidating
impact
capabilities
metal-oxide
heterostructures.
Finally,
address
challenges
prospects
harnessing
nanostructures
photoreduction.
ACS Applied Nano Materials,
Journal Year:
2024,
Volume and Issue:
7(3), P. 3488 - 3498
Published: Jan. 29, 2024
The
nanostructure
of
the
photocatalyst
plays
a
crucial
role
in
determining
its
catalytic
ability.
In
this
paper,
2D/2D
WO3/ZnIn2S4
S-scheme
heterojunction
was
successfully
prepared
through
simple
hydrogen
reaction.
Under
UV–vis
light
irradiation,
yield
CO
CO2
photoreduction
process
using
as
catalyst
reached
about
44.61
μmol·g–1,
which
3.9
times
higher
than
that
obtained
with
ZnIn2S4
alone.
Cycling
experiments
demonstrated
binary
composite
exhibited
excellent
photocatalytic
activity
and
material
stability.
Photoelectrochemical
measurements
revealed
significantly
enhanced
separation
efficiency
photogenerated
carriers
effectively
improved
redox
ability
photocatalyst.
Density
functional
theory
calculations
were
employed
to
analyze
electron
transfer
pathways
formation
built-in
electric
field
at
interface,
confirming
structure
accelerated
electrons
from
WO3
ZnIn2S4.
further
investigated
by
situ
FTIR.
Finally,
possible
mechanism
2D–2D
interface
during
reaction
proposed
discussed.
Energy & Fuels,
Journal Year:
2023,
Volume and Issue:
37(7), P. 4878 - 4897
Published: March 11, 2023
A
promising
approach
is
to
transform
carbon
dioxide
(CO2)
into
renewable,
high
value-added
products
with
minimal
environmental
impact
and
maximum
efficiency.
Many
problems,
including
energy
shortages
degradation,
are
caused
by
CO2
levels,
but
this
can
help.
Photocatalytic
reduction
methods
a
technology
for
solving
these
problems.
Cerium
(CeO2)
one
of
the
most
important
rare
earth
oxides,
cerium
dioxide-based
photocatalysts
have
gained
lot
attention
in
recent
years
due
their
distinctive
features,
such
as
tunable
electronic
structures
excellent
photocatalytic
performances.
However,
wide
band
oxide
limits
its
utilization
light.
This
review
provides
various
strategies
modification
oxide,
encompassing
external
atom
doping,
heterostructure
fabrication,
defect
crystal
plane
modulation,
improve
catalytic
performance
CeO2.
The
fundamentals
conversion
CeO2-based
also
summarized.
Finally,
challenges
prospects
catalysts
presented.
Nanoscale,
Journal Year:
2023,
Volume and Issue:
15(19), P. 8548 - 8577
Published: Jan. 1, 2023
A
photocatalytic
system
driven
by
solar
light
is
one
of
the
promising
strategies
for
converting
CO2
into
valuable
energy.
The
reduction
to
CH4
widely
studied
since
has
a
high
energy
density
as
main
component
nonrenewable
natural
gas.
Therefore,
it
necessary
develop
semiconductor
materials
with
activity
and
selectivity.
Graphitic
carbon
nitride
(g-C3N4/CN)
attracted
widespread
attention
due
its
excellent
redox
ability
visible
response.
hybrid
constructed
loading
cocatalysts
on
g-C3N4
can
significantly
improve
yield
target
products,
serve
general
platform
explore
mechanism
reaction.
Herein,
we
briefly
introduce
theory
selective
photoreduction
basic
properties
cocatalysts.
Then,
several
typical
configurations
modification
cocatalyst/CN
systems
promoting
production
are
presented
in
detail.
In
particular,
systematically
summarize
application
composite
photocatalysts
methane,
according
classification
(monometal,
bimetal,
metal-based
compound,
nanocarbon
materials).
Finally,
challenges
perspectives
developing
cocatalyst/g-C3N4
selectivity
guide
rational
design
catalysts
performance
future.
