Advanced Functional Materials,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Jan. 28, 2025
Abstract
The
degradation
of
fluorinated
refrigerants,
known
for
their
highly
stable
carbon‐fluorine
(C─F)
bonds,
poses
significant
environmental
and
technical
challenges.
This
review
addresses
these
challenges
by
analyzing
two
core
mechanisms:
molecular
polarization
(MP)
free
radical
attack
(FRA),
exploring
applications
in
thermal
catalytic
photocatalytic
processes.
MP
redistributes
electron
density
to
weaken
C─F
facilitating
adsorption
bond
cleavage,
while
involves
reactive
species
that
directly
break
chemical
bonds.
However,
both
mechanisms
have
limitations:
alone
may
lack
the
kinetic
drive
dissociation,
radical‐based
methods
often
suffer
from
low
selectivity,
short
lifetimes,
formation
toxic
intermediates.
section
on
discusses
how
elevated
temperatures
enhance
cleavage
through
MP,
addressing
accelerating
dissociation.
part
focuses
role
light‐activated
processes
generating
radicals
breaking,
with
an
emphasis
visible
ultraviolet
light‐driven
reactions.
concludes
potential
hybrid
systems
combine
processes,
providing
insights
into
complementary
use
persistent
compounds.
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 Synthesis,
Journal Year:
2025,
Volume and Issue:
5(2)
Published: Feb. 25, 2025
Photocatalytic
CO2
reduction
for
solar
fuel
generation
is
a
promising
approach
to
alleviating
the
environmental
and
energy
crisis.
Herein,
flower-like
composite
was
obtained
by
assembling
Zn
vacancy-rich
ZnIn2S4
(VZn-ZIS)
with
up-conversion
nanoparticles
(UCNPs,
NaYF4:
Yb,
Er).
Specifically,
optimized
UCNPs@VZn-ZIS
demonstrates
superior
CO
of
32.57
μmol/g
in
near-infrared
(NIR)-driven
photocatalytic
process
within
8
h.
Fortunately,
performance
based
on
most
reported
photocatalysts
under
NIR
irradiation.
The
enhanced
activity
attributed
extended
light
absorption,
charge
separation,
improved
activation
surface
vacancy.
work
presented
here
provides
facile
developing
novel
broad
spectral
responsive
photocatalysts,
which
hold
great
potential
future
applications.
Advanced Functional Materials,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Sept. 6, 2024
Abstract
Light‐driven
CO
2
reduction
integrated
with
benzylamine
(BA)
oxidation
provides
a
promising
means
for
achieving
sustainable
development,
whereas
whose
effectiveness
is
challenged
by
imbalanced
charge
transfer/utilization
and
proton
supply/consumption.
To
conquer
these
issues,
herein,
2D/2D
inorganic/organic
S‐scheme
heterojunction
reported
nanochamber
design,
featuring
large‐area
interfacial
contact
between
the
components
carrier
transfers
sufficient
exposure
of
spatially
separated
redox
sites
surface
reactions.
Remarkably,
designed
BiOI@hollow
zinc‐porphyrin
conjugated
polymer
(ZnPCP)
catalyst
delivers
high
CH
4
yield
577.1
µmol
g
cat
−1
h
stoichiometric
N‐benzylidenebenzylamine
(BDA)
output
2300.3
,
both
selectivities
exceeding
96%.
Zn
coordination
to
porphyrin
not
only
amplifies
internal
electric
field
induces
an
intramolecular
polarization
within
ZnPCP,
but
also
facilitates
adsorption/activation
lowers
energy
barriers
methanation,
improving
transfer/separation
dynamics
regulating
reaction
kinetics.
Moreover,
hollow
chambers
increase
photon
utilization,
coordinate
release
consumption,
encouraging
dehydrogenation
C─N
coupling
BA
BDA,
while
simultaneously
discouraging
hydrogenation
BDA
secondary
amines.
This
study
emphasizes
significance
attaining
equilibrium,
providing
fresh
avenue
enhancing
efficiency
photoredox
catalysis.
