Small Methods,
Journal Year:
2022,
Volume and Issue:
6(12)
Published: Nov. 6, 2022
Inspired
by
natural
photosynthesis,
harnessing
the
wide
range
of
solar
energy
and
utilizing
appropriate
semiconductor-based
catalysts
to
convert
carbon
dioxide
into
beneficial
species,
for
example,
CO,
CH4
,
HCOOH,
CH3
COH
have
been
shown
be
a
sustainable
more
environmentally
friendly
approach.
Graphitic
nitride
(g-C3
N4
)
has
regarded
as
highly
effective
photocatalyst
CO2
reduction
reaction,
owing
its
cost-effectiveness,
high
thermal
chemical
stability,
visible
light
absorption
capability,
low
toxicity.
However,
weaker
electrical
conductivity,
fast
recombination
rate,
smaller
window,
reduced
surface
area
make
this
catalytic
material
unsuitable
commercial
photocatalytic
applications.
Therefore,
certain
procedures,
including
elemental
doping,
structural
modulation,
functional
group
adjustment
g-C3
addition
metal
complex
motif,
others,
may
used
improve
activity
towards
reduction.
This
review
investigated
scientific
community's
perspectives
on
synthetic
pathways
optimization
approaches
increase
selectivity
efficiency
-based
hybrid
structures,
well
their
benefits
drawbacks
Finally,
concludes
comparative
discussion
presents
promising
picture
future
scope
improvements.
ACS Applied Materials & Interfaces,
Journal Year:
2021,
Volume and Issue:
13(10), P. 11755 - 11764
Published: March 8, 2021
Efficient
electron
transmission
is
an
important
step
in
the
process
of
CO2
photoreduction.
In
this
paper,
a
multi-interface-contacted
In2S3/Au/reduced
graphene
oxide
(rGO)
photocatalyst
with
fluorescence
resonance
energy
transfer
(FRET)
mechanism
has
been
successfully
prepared
by
solvothermal,
self-assembly,
and
hydrothermal
reduction
processes.
Photocatalytic
experiments
showed
that
In2S3/Au/rGO
(IAr-3)
composite
exhibited
excellent
photoreduction
performance
photocatalytic
stability.
The
yields
CO
CH4
obtained
after
IAr-3
as
catalyst
were
around
4
6
times
higher
than
those
pure
In2S3,
respectively.
Photoelectrochemical
analysis
multi-interface
contact
FRET
greatly
improved
generation,
transmission,
separation
efficiency
carriers
photogenerated
within
photocatalyst.
situ
FTIR
test
was
applied
to
analyze
process.
13C
isotope
tracer
confirmed
carbon
source
molecules
rather
decomposition
or
TEOA.
A
potential
enhanced
discussed
total.
Advanced Functional Materials,
Journal Year:
2021,
Volume and Issue:
32(15)
Published: Dec. 29, 2021
Abstract
Photoreduction
of
CO
2
without
photosensitizers
and
scavengers
runs
into
the
development
bottleneck
for
lack
excellent
photocatalysts
ambiguous
reduction
mechanism.
Herein,
an
ultrathin
CoO
layer
containing
Zn‐dopants
O‐vacancies
(V
o
‐Zn‐CoO)
is
designed
as
archetype
to
explore
influence
mechanism
Zn
on
in
nanolayer
photoreduction.
DFT
calculations
illustrate
that
not
only
reduce
formation
barriers
*COOH
*CO
intermediates,
but
also
form
π‐back‐bonding
with
stimulating
CH
4
evolution.
Finally,
V
‐Zn‐CoO
significantly
enhances
photoreduction
efficiency
selectivity
26.8
µmol
g
−1
h
(63.8%)
compared
7.2
(23.6%)
O‐vacancies.
Moreover,
synergistic
effect
benefits
stability
photocatalysts,
achieving
durable
photocatalytic
performance
layer.
This
work
manifests
strategy
metal
atoms
effective
optimize
efficiency,
selectivity,
photocatalyst
Small Methods,
Journal Year:
2022,
Volume and Issue:
6(12)
Published: Nov. 6, 2022
Inspired
by
natural
photosynthesis,
harnessing
the
wide
range
of
solar
energy
and
utilizing
appropriate
semiconductor-based
catalysts
to
convert
carbon
dioxide
into
beneficial
species,
for
example,
CO,
CH4
,
HCOOH,
CH3
COH
have
been
shown
be
a
sustainable
more
environmentally
friendly
approach.
Graphitic
nitride
(g-C3
N4
)
has
regarded
as
highly
effective
photocatalyst
CO2
reduction
reaction,
owing
its
cost-effectiveness,
high
thermal
chemical
stability,
visible
light
absorption
capability,
low
toxicity.
However,
weaker
electrical
conductivity,
fast
recombination
rate,
smaller
window,
reduced
surface
area
make
this
catalytic
material
unsuitable
commercial
photocatalytic
applications.
Therefore,
certain
procedures,
including
elemental
doping,
structural
modulation,
functional
group
adjustment
g-C3
addition
metal
complex
motif,
others,
may
used
improve
activity
towards
reduction.
This
review
investigated
scientific
community's
perspectives
on
synthetic
pathways
optimization
approaches
increase
selectivity
efficiency
-based
hybrid
structures,
well
their
benefits
drawbacks
Finally,
concludes
comparative
discussion
presents
promising
picture
future
scope
improvements.
