Advanced Functional Materials,
Год журнала:
2024,
Номер
unknown
Опубликована: Дек. 1, 2024
Abstract
Photocatalytic
selective
oxidation
of
C(sp
3
)─H
bonds
into
valuable
carbonyl
compounds
offers
a
promising
approach
to
advance
green
organic
synthesis
and
contribute
more
sustainable
chemical
industry.
However,
significant
challenges
remain
due
the
low
efficiency
photocatalysts,
primarily
caused
by
insufficient
charge
separation
limited
ability
intermixed
surface
redox‐active
sites
precisely
capture
photoinduced
carriers.
Here,
PEA
2
PbBr
4
/CeO
(PPB/CeO
)
p‐n
heterojunction
is
designed
fabricated.
Experimental
characterizations
theoretical
calculations
reveal
that
strong
internal
electric
field
(IEF)
formed
at
interface
within
heterojunction,
which
drives
targeted
accumulation
holes
on
PPB
electrons
CeO
.
Importantly,
displays
superior
oxygen
affinity
facilitating
O
reduction,
while
validates
stronger
adsorption
activation
capability
toluene
molecule
promoting
C─H
bond
dissociation.
In
this
context,
are
directionally
separated
transported
decoupled
reduction
in
PPB/CeO
,
thereby
significantly
accelerating
aerobic
bonds.
Toward
photocatalytic
model
substrate
toluene,
optimized
‐5%
composite
exhibits
conversion
rate
10
050
µmol
g
−1
h
nine
times
enhanced
comparison
with
blank
(1160
).
Advanced Energy Materials,
Год журнала:
2025,
Номер
unknown
Опубликована: Март 3, 2025
Abstract
The
excessive
use
of
fossil
fuels
has
significantly
increased
environmental
stress,
driving
the
need
for
green,
sustainable
biofuel
alternatives.
Innovations
in
photocatalysis
(PC),
electrocatalysis
(EC),
and
their
synergistic
approaches,
like
photothermal
catalysis
(PTC),
photo‐enzymatic
(PENC),
photoelectrocatalysis
(PEC),
offer
advanced
methods
biomass
conversion
into
biofuels,
surpassing
traditional
limitations.
However,
comprehensive
research
on
these
processes
is
still
lacking.
This
review
aims
to
systematically
analyze
recent
progress
catalytic
strategies
biomass‐to‐biofuel
conversion.
It
first
describes
characteristics,
types,
properties
biofuels.
Then,
it
explores
fundamental
mechanisms
PC,
EC,
combined
technologies.
chemical
pathways
involved
conversion—such
as
transesterification,
esterification,
hydrogenation,
decarboxylation,
bond
cleavage,
cyclization—are
examined.
Efficient
catalyst
design
specific
reactions
factors
influencing
efficiency
rates
are
also
discussed.
Additionally,
this
paper
assesses
impact
economic
benefits
green
technology
production,
offering
a
valuable
reference
energy
application.
addresses
challenges
deployment
production
suggests
future
directions,
aiming
provide
scientific
guidance
technical
support
development
vital
field.
In
summary,
underscores
importance
continued
innovation
promote
solutions.
ACS Sustainable Chemistry & Engineering,
Год журнала:
2024,
Номер
12(46), С. 17026 - 17034
Опубликована: Ноя. 7, 2024
Incorporating
plasmonic
nanostructures
into
photocatalysts
significantly
enhances
catalytic
efficiency
due
to
effects.
In
this
study,
we
successfully
developed
a
heterojunction
between
organic
semiconductor
zinc
porphyrin
(Zn-TCPP)
and
colloidal
gold
(Au)
nanoparticles
connected
via
Au–O
bonds.
The
formation
of
bonds
Zn-TCPP
Au
facilitates
charge
transfer
by
reducing
the
Schottky
barrier
at
interface.
Finite-difference
time-domain
simulations,
in
situ
XPS
measurements,
infrared
thermal
imaging
confirm
that
strong
localized
surface
plasmon
resonance
effect
local
electric
field
photothermal
effect,
promoting
separation
electron–hole
pairs
Zn-TCPP/Au
sample
improving
reaction
kinetics.
optimal
Zn-TCPP/Au-2%
composite
demonstrates
an
impressive
H2
generation
rate
1610
μmol·g–1·h–1,
which
is
2.7
8.6
times
greater
than
TCPP
samples,
respectively.
Additionally,
shows
high
C–N
coupling
benzylamine
imine,
achieving
yield
45.1
mmol·g–1
24
h.
This
study
provides
comprehensive
understanding
how
activity
photocatalysts.
Abstract
The
limited
yield
of
H
2
production
has
posed
a
significant
challenge
in
contemporary
research.
To
address
this
issue,
researchers
have
turned
to
the
application
surface
plasmon
resonance
(SPR)
materials
photocatalytic
generation.
SPR,
arising
from
collective
electron
oscillations,
enhances
light
absorption
and
facilitates
efficient
separation
transfer
electron‐hole
pairs
semiconductor
systems,
thereby
boosting
efficiency.
However,
existing
reviews
predominantly
focus
on
SPR
noble
metals,
neglecting
non‐noble
metals
semiconductors.
In
review,
we
begin
by
elucidating
five
different
mechanisms,
covering
hot
injection,
electric
field
enhancement,
scattering,
plasmon‐induced
resonant
energy
transfer,
photo‐thermionic
effect,
which
activity.
Subsequently,
comprehensive
overview
follows,
detailing
materials‐metals,
semiconductors‐in
production.
Additionally,
personal
perspective
is
offered
developing
highly
SPR‐based
photocatalysis
systems
for
solar‐to‐H
conversion
future.
This
review
aims
guide
development
next‐gen
advancing
solar‐to‐fuel
conversion.
Catalysts,
Год журнала:
2024,
Номер
14(6), С. 356 - 356
Опубликована: Май 30, 2024
Metal–organic
frameworks
(MOFs)
have
recently
gained
attention
as
a
highly
promising
category
of
photocatalytic
materials,
showing
great
potential
in
the
degradation
organic
dyes
such
Rhodamine
B
(RhB).
Nonetheless,
mono-metal
MOF
materials
this
application
are
often
constrained
by
their
limited
light
absorption
capabilities
and
propensity
for
recombination
with
carriers.
The
combination
different
metal-based
MOFs
to
form
heterogeneous
reactors
could
present
approach
removal
from
water.
In
work,
new
CAU-17/MIL-100(Fe)
Z-scheme
heterojunction
photocatalyst
composed
two
same
ligands
is
reported
realize
efficient
results
significant
enhancement
surface
open
sites,
optical
responsivity
range,
charge-separating
efficiency
through
synergistic
effects.
addition,
capture
experiments
conducted
on
process
verified
that
∙O2−
h+
primary
active
species.
Consequently,
exhibited
excellent
activity
stability.
rate
optimal
was
34.55
times
CAU-17
3.60
MIL-100(Fe).
Our
work
provides
strategy
exploring
visible-light
RhB
bimetallic
composites.
Advanced Energy Materials,
Год журнала:
2024,
Номер
14(42)
Опубликована: Сен. 2, 2024
Abstract
Photosynthesis
converts
solar
energy,
carbon
dioxide,
and
water
into
biomass,
offering
a
renewable
energy
chemical
source.
Biomass
photo(electro)refining
(BPeR)
emerges
as
sustainable
alternative
to
petrochemicals
for
fuel
production.
However,
BPeR
faces
challenges
due
photocatalyst
limitations,
necessitating
the
integration
of
cocatalysts.
Cocatalysts
significantly
impact
efficiency,
selectivity,
durability
reactions,
yet
their
roles
require
systematic
elucidation
understanding.
This
review
explores
how
cocatalysts
bond
functionalization,
cleavage,
formation
in
biomass
its
derivatives.
It
discusses
crucial
charge
carrier
generation,
separation,
transportation,
particularly
catalyzing
surface
reactions
such
hydrogen‐involved
manipulation
oxygen
or
radicals,
C─C/O/H
transformations.
Additionally,
it
outlines
prospects
developing
enhance
efficiency
durability,
boosting
viability
source
materials.
