Angewandte Chemie International Edition,
Journal Year:
2022,
Volume and Issue:
62(6)
Published: Nov. 2, 2022
We
report
an
oxygen
vacancy
(Vo
)-rich
metallic
MoO2-x
nano-sea-urchin
with
partially
occupied
band,
which
exhibits
super
CO2
(even
directly
from
the
air)
photoreduction
performance
under
UV,
visible
and
near-infrared
(NIR)
light
illumination.
The
Vo
-rich
displays
a
CH4
evolution
rate
of
12.2
5.8
μmol
gcatalyst-1
h-1
full
spectrum
NIR
illumination
in
concentrated
,
is
ca.
7-
10-fold
higher
than
-poor
respectively.
More
interestingly,
as-developed
can
even
reduce
air
CO
6.5
Experiments
together
theoretical
calculations
demonstrate
that
facilitate
adsorption/activation
to
generate
*COOH
as
well
subsequent
protonation
*CO
towards
formation
because
highly
stable
Mo-C-O-Mo
intermediate.
Advanced Functional Materials,
Journal Year:
2023,
Volume and Issue:
33(23)
Published: March 2, 2023
Abstract
The
S‐scheme
heterojunctions
have
great
potential
for
photocatalytic
carbon
dioxide
reduction
due
to
their
unique
carrier
migration
pathways,
superior
separation
efficiencies,
and
high
redox
capacities.
However,
the
precise
process
of
oriented
powerful
electron
transport
remains
a
challenge.
Herein,
an
InOCd
bond‐modulated
heterojunction
In
2
O
3
/CdSe‐DETA
is
synthesized
by
simple
microwave‐assisted
hydrothermal
method
accelerated
photogenerated
transfer.
Meanwhile,
oxygen
vacancies
(Vo)
capture
effect.
Consequently,
thanks
synergistic
effect
this
In‐Vo‐In‐O‐Cd
structural
units
at
interface,
electrons
are
extracted
rapidly
transferred
surface‐active
sites,
which
improves
electronic
coupling
CO
.
This
finding
precisely
adjusts
transfer
pathway
shortens
distance.
chemical
bond
established
in
heterostructure
with
(Vo‐In
)
provides
new
insights
into
reduction.
Clean Technologies,
Journal Year:
2022,
Volume and Issue:
4(4), P. 1193 - 1207
Published: Nov. 17, 2022
One
of
society’s
major
current
challenges
is
carbon
dioxide
emissions
and
their
consequences.
In
this
context,
new
technologies
for
(CO2)
capture
have
attracted
much
attention.
these
utilization
(CCU).
This
work
focuses
on
the
latest
trends
in
a
holistic
approach
to
utilization.
Absorption,
adsorption,
membranes,
chemical
looping
are
considered
CO2
capture.
Each
technology
described,
its
benefits
drawbacks
discussed.
For
use
dioxide,
various
possible
applications
CCU
starting
with
agriculture
proceeding
conversion
into
fuels
(catalytic
processes),
chemicals
(photocatalytic
polymers,
building
supplies.
decades,
has
been
used
industrial
processes,
such
as
CO2-enhanced
oil
recovery,
food
industry,
organic
compound
production
(such
urea),
water
treatment,
and,
therefore,
flame
retardants
coolants.
There
also
several
CO2-utilization
at
stages
development
exploitation,
electrochemical
fuels,
supercritical
CO2.
At
end
review,
future
opportunities
discussed
regarding
machine
learning
(ML)
life
cycle
assessment
(LCA).
Advanced Functional Materials,
Journal Year:
2023,
Volume and Issue:
33(35)
Published: May 17, 2023
Abstract
Simultaneous
optimization
on
bulk
photogenerated‐carrier
separation
and
surface
atomic
arrangement
of
catalyst
is
crucial
for
reactivity
CO
2
photo‐reduction.
Rare
studies
capture
the
detail
that,
better
than
in‐plane
regulation,
interlayer‐spacing
regulation
may
significantly
influence
carrier
transport
bulk‐catalyst
thereby
affecting
its
photo‐reduction
in
g
‐C
3
N
4
.
Herein,
through
a
single
atom‐assisted
thermal‐polymerization
process,
single‐atom
In‐bonded
N‐atom
(In
δ
+
–N
)
(002)
crystal
planes
originally
constructed.
This
In
reduces
interplanar
spacing
by
electrostatic
adsorption,
which
enhances
carriers
greatly
promotes
photoreduction.
The
photo‐conversion
performance
this
resulted
modified
superior
to
other
atom
loaded
carbon
nitride
catalysts.
Moreover,
adsorption
,
*COOH
formation
energy,
optimizes
reaction
path.
It
achieves
remarkable
398.87
µmol
−1
h
yield
rate,
0.21%
apparent
quantum
efficiency,
nearly
100%
selectivity
without
any
cocatalyst
or
sacrificial
agent.
Through
d
modulation
atom,
study
provides
ground‐breaking
insight
enhancement
from
double‐gain
view
structural
control
‐reduction
photocatalysts.
ACS Catalysis,
Journal Year:
2023,
Volume and Issue:
13(12), P. 8317 - 8329
Published: June 7, 2023
Constructing
highly
active
photocatalysts
with
rich
reactive
sites
for
photofixation
of
CO2
organic
compounds
implements
an
environmentally
friendly
route
valorization
and
carbon
neutralization.
Herein,
we
report
the
isolated
cobalt
(Co)
single-atom
(SA)-decorated
two-dimensional
(2D)
single-layer
ZnIn2S4
(ZIS)
nanosheet
composites
(Co-sZIS)
dual
centers
Co
Zn
fixation
epoxides
under
visible
light.
The
unique
ensemble
Co-sZIS
optimizes
light
harvesting,
promotes
charge
carrier
separation,
enriches
bifunctional
efficient
adsorption
activation
reactants
CO2.
Consequently,
exhibits
significantly
improved
CO2-epoxide
cycloaddition
performance
compared
to
bulk
ZIS.
In
addition,
synergetic
photoredox
manner
simultaneously
exploiting
photogenerated
electrons
holes
efficiently
facilitates
epoxides,
thereby
further
reducing
energy
barrier
fixation.
This
work
not
only
provides
a
paradigm
rationally
interfacial
engineered
SA-onto-2D
semiconductors
but
also
highlights
structure–activity
relationship
by
well-defined
in
this
SA-based
hybrid
platform.
