Chemical Science,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Jan. 1, 2025
To
study
M–N–C
SACs
at
the
atomic
level,
we
propose
a
“splitting
and
decoupling”
strategy.
Gas-phase
experiments
reveal
how
varied
coordination
environments
regulate
CO
adsorption
on
Cu
center,
guiding
catalytic
selectivity
design.
Angewandte Chemie International Edition,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Feb. 9, 2025
Photo/electro-catalytic
CO2
reduction
into
high-value
products
are
promising
strategies
for
addressing
both
environmental
problems
and
energy
crisis.
Duo
to
their
advantageous
visible
light
absorption
ability,
adjustable
optic/electronic
properties,
definite
active
center,
post-modification
capability,
excellent
stability,
porphyrin-based
covalent
organic
frameworks
(COFs)
have
emerged
as
attractive
photo/electro-catalysts
towards
reduction.
In
this
review,
the
research
progress
of
COFs
photo/electro-catalytic
is
summarized
including
design
principles,
catalytic
performance,
reaction
mechanism.
addition,
review
also
presents
some
challenges
prospects
application
in
reduction,
laying
base
fundamental
efforts.
Small,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Feb. 5, 2025
Abstract
Achieving
synergistic
oxidation
and
reduction
represents
a
significant
challenge
in
the
field
of
photocatalysis.
In
this
study,
hydrothermal/in
situ
construction
Bi
atom
clusters
within
2
Sn
O
7
/ZnIn
S
4
(BSO/ZIS)
heterostructures
is
reported.
These
exhibit
self‐accelerating
charge‐transfer
mechanisms
facilitated
by
internal
electric
fields
bonding
bridges,
resulting
highly
efficient
light
absorption
capabilities.
X‐ray
photoelectron
spectroscopy
(XPS)
Kelvin
probe
force
microscopy
(KPFM),
as
well
theoretical
calculations,
indicate
that
canonical
induction
promotion
electrons
holes
lowers
activation
energy
CHO*
generation,
allowing
simultaneous
CO
toluene
over
catalyst,
enhances
proton‐coupling
electron‐transfer
processes,
unique
reaction
mechanism.
The
reactant,
Bi‐Bi
(B‐BSO/ZIS)
heterostructure
achieves
rate
to
726.3
µmol
g
−1
h
(99.9%
selectivity)
benzaldehyde
2362.0
(98.0%
selectivity),
which
increases
activity
14.6
5.7
times
compared
pristine
ZnIn
.
This
study
underscores
significance
modulating
photocatalytic
pathway
through
strategic
selection
metal
reactants,
contributing
rational
design
photocatalysts
for
enhanced
adsorption
stabilization
*H.
Chemical Communications,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Jan. 1, 2025
MIL-101(Cr)
composited
with
Pt/Pd
nanoalloy
exposing
the
{111}
facet
can
photocatalytically
convert
CO
2
to
C
H
4
,
while
one
{100}
has
no
such
capability,
demonstrating
importance
of
facets
in
photocatalytic
reduction.
Hydrothermally
produced
Cu-doped
two-dimensional
(2D)
Bi2MoO6
nanoribbon/rGO
composite
is
explored
as
the
photocatalyst
for
selective
reduction
of
CO2
to
ethanol.
In
particular,
role
Cu
doping
rGO-supported
on
C2
product
selectivity
investigated.
Long
nanoribbon-type
pristine
2D-Bi2MoO6,
2D-Bi2MoO6
nanoribbon/rGO,
and
that
doped
with
varying
weight
percentages
copper
(Cu)
are
synthesized
characterized
by
XRD,
FTIR,
UV–vis
spectroscopy,
photoluminescence
X-ray
photoelectron
SEM,
TEM,
EDX,
EIS,
BET
analyses.
Among
all
photocatalysts,
optimum
2
wt
%
exhibiting
an
enhanced
absorption
edge
visible
light
at
730
nm,
smallest
band
gap
2.02
eV,
lowest
rate
electron–hole
pair
recombination,
improved
charge
transport
offers
highest
photocatalytic
activity
(133.10
μmol
gcat.–1
h–1)
100%
ethanol
production.
Absence
either
or
rGO
leads
formation
a
mixture
methanol
separates
photoexcited
electrons
holes
establishes
electron-rich
interface
rGO-Cu
junction
2%Cu-doped
photocatalyst,
facilitating
high
adsorption.
serves
trap
catch
more
electrons.
Electrons
from
Mo
Bi
atoms
(of
Bi2MoO6)
drawn
C
2p
rGO)
3d
orbitals.
enhances
thickened
electron
cloud
(drawn
Bi)
surface
C(rGO)-Cu,
which
facilitates
adsorption
reduction.
The
Mo–C–Cu/Mo–O–Cu
bridge
formed
upon
effectively
reduces
distance
photogenerated
recombination
stabilize
intermediate
radicals
such
·CO
transfer
abundant
tapping
sites
formation.
2%
in
yield
production
2.26
times
compared
nanoribbon/rGO.
Angewandte Chemie,
Journal Year:
2024,
Volume and Issue:
136(45)
Published: July 29, 2024
Abstract
Photocatalytic
CO
2
reduction
to
value‐added
fuels
displays
an
attractive
scenario
enhance
energy
supply
and
reduce
global
warming.
We
report
herein
the
confinement
synthesis
of
polymeric
carbon
nitride
(PCN)
incorporating
with
Cu
single
atoms
(CuSAs)
inside
crystalline
UiO‐66‐NH
,
which
combines
merits
heterojunction
photocatalysis
single‐atom
catalysis
(SAC)
achieve
high‐performance
‐to‐CH
3
OH
conversion.
A
series
spectral
studies
formation
CuSAs@PCN
.
Remarkably,
ternary
composite
shows
excellent
photocatalytic
turnover
frequency
4.15
mmol
⋅
h
−1
g
for
Theoretical
experimental
demonstrate
doping
CuSAs,
as
well
type‐II
heterojunction,
are
causal
factors
CH
generation.
The
study
provides
new
insights
designing
photocatalyst
conversion
at
atomic
scale.