Advanced Materials,
Journal Year:
2024,
Volume and Issue:
unknown
Published: June 10, 2024
Abstract
Photocatalytic
solar
hydrogen
generation,
encompassing
both
overall
water
splitting
and
organic
reforming,
presents
a
promising
avenue
for
green
production.
This
technology
holds
the
potential
reduced
capital
costs
in
comparison
to
competing
methods
like
photovoltaic‐electrocatalysis
photoelectrocatalysis,
owing
its
simplicity
fewer
auxiliary
components.
However,
current
solar‐to‐hydrogen
efficiency
of
photocatalytic
production
has
predominantly
remained
low
at
≈1–2%
or
lower,
mainly
due
curtailed
access
entire
spectrum,
thus
impeding
practical
application
review
offers
an
integrated,
multidisciplinary
perspective
on
Specifically,
existing
approaches
photocatalyst
system
designs
aimed
significantly
boosting
efficiency,
while
also
considering
factors
cost
scalability
each
approach.
In‐depth
discussions
extending
beyond
efficacy
material
design
strategies
are
particularly
vital
identify
hurdles
translating
photocatalysis
research
large‐scale
applications.
Ultimately,
this
aims
provide
understanding
feasible
pathways
commercializing
technology,
engineering
economic
standpoints.
Chemical Engineering Journal,
Journal Year:
2024,
Volume and Issue:
493, P. 152603 - 152603
Published: May 27, 2024
Biomass
is
an
important
sustainable
carbon
source
and
converting
biomass
intermediates
into
value-added
chemicals/fuels
using
a
green
technology
promising
pathway.
Dual
functional
photocatalysis
can
be
used
to
"hit
two
birds
with
one
stone"
via
the
simultaneous
production
of
H2
valorisation
intermediates.
CdIn2S4
(CIS),
exciting
photocatalytic
material
because
its
high
visible
light
harvesting
capacity.
Herein,
ultrathin
CIS
nanosheets
were
fabricated
solvothermal
method
in
situ
deposition
Ru
(Ru-CIS).
The
performance
Ru-CIS
toward
selective
oxidation
furfuryl
alcohol
(FOH,
intermediate),
product
(Furfural,
FCHO)
concurrent
generation
hydrogen
was
investigated.
incorporation
resulted
up
50-fold
enhancement
rate
higher
FOH
FCHO
conversion%
selectivity%.
This
attributed
enhanced
charge
separation
due
incorporated
species
as
supported
by
density
theory
(DFT)
calculations.
Advanced Functional Materials,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Aug. 9, 2024
Abstract
Despite
the
significant
milestones
in
half‐reduction
process
of
photocatalysis,
challenges
remain
fully
utilizing
electron–hole
pairs
simultaneous
redox
reactions.
Herein,
a
Z‐scheme
ZnIn
2
S
4
/W
18
O
49
(ZW)
hybrid
with
complementary
band
edge
potential
is
situ
constructed.
The
resultant
fuzzy
1D‐assembled
sea‐urchin
photocatalyst
demonstrates
an
optimal
H
and
benzaldehyde
yield
122
106
µmol
h
−1
under
λ
>
420
nm
light
irradiation.
This
sacrificial‐agent‐free
system
entails
solar‐to‐hydrogen
(STH)
apparent
quantum
efficiency
(AQE)
values
0.466%
2.48%
(420
nm),
respectively,
surpassing
most
recently
reported
photocatalytic
systems
without
aid
noble
metal
cocatalysts.
outstanding
performance
mainly
attributed
to
synergistic
formation
intimate
heterojunction
induction
localized
surface
plasmon
resonances.
Comprehensive
characterization
studies
prove
direct
injection
energetic
hot
electrons
promote
number
long‐lived
active
electrons.
Besides,
electron
paramagnetic
resonance
scavenger
tests
clarify
complicated
mechanistic
puzzle
dual‐redox
reaction,
where
formed
dominantly
via
O─H
activation
followed
by
C─H
cleavage
benzyl
alcohol
over
ZW
hybrid.
Lastly,
universal
use
composites
testified
various
systems.
study
offers
novel
outlook
for
designing
dual‐functioning
heterojunctions
toward
feasible
photoredox
application.
As
renewable
electricity─particularly
from
solar
energy─becomes
more
cost-effective,
electrochemical
organic
waste
reforming
emerges
as
a
promising
solution
for
green
hydrogen
production.
This
approach
also
offers
additional
advantages
in
low-carbon
management
and
the
coproduction
of
value-added
chemicals.
However,
its
broader
application
has
been
limited,
mainly
due
to
gaps
understanding
complex
properties
real
mixed
waste,
reaction
mechanisms,
catalyst
design,
system
integration.
review
provides
fresh
perspective
on
value
technology
both
degradation
valorization.
Initially,
suitability
various
streams
processes
based
critical
feedstock
was
examined.
Subsequently,
potential
alternative
anodic
reactions
pollutant
valorization
determine
optimal
process
pathways
were
screened.
Finally,
advanced
catalysts,
modules,
designs
enhance
techno-economic
feasibility
explored.
Overall,
this
underscores
significant
sustainable
production
management,
offering
insights
into
feasible
commercializing
by
addressing
challenges
related
feedstocks,
systems.
