ACS Nano,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Feb. 13, 2025
Photocatalytic
upcycling
of
glycerol,
a
significant
byproduct
biodiesel,
to
value-added
lactic
acid
coupled
with
H2
production
shows
great
promise
for
resource
utilization
and
renewable
fuel
production.
However,
this
reaction
is
currently
limited
low
efficiency
moderate
selectivity
due
insufficient
light
absorption,
rapid
charge
carrier
recombination,
unfavorable
kinetics.
Herein,
we
report
an
atomic-level
heterojunction
photocatalyst
consisting
CdxZn1–xS
embedded
uniformly
Cu–S3
moieties
at
the
scale.
Due
formation
coherent-lattice
interface
strong
interfacial
electronic
interactions
between
host,
as
well
localized
surface
plasmon
resonance
effects
induced
by
moieties,
such
much
enhanced
separation
transfer
absorption
covering
full
solar-light
spectrum.
As
result,
10-fold
increase
in
glycerol
conversion
(LA)
achieved,
LA
reaching
over
95%.
The
present
work
demonstrates
potential
photocatalysis
biomass
toward
coproduction
valuable
chemicals
using
structure-defined
photocatalysts.
Advanced Energy Materials,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Feb. 13, 2025
Abstract
Developing
conductor‐mediated
S‐scheme
heterojunction
photocatalysts
imitating
natural
photosynthetic
systems
emerges
as
a
promising
approach
to
hydrogen
peroxide
(H
2
O
)
production.
However,
achieving
precise
coupling
between
two
semiconductors
with
charge
shuttle
and
modulating
the
interfacial
interactions
still
remain
significant
bottleneck.
Herein,
we
propose
catalyst
architecture
Cd
single
atom
mediated
formed
by
interfacing
CdS
TiO
nanoparticles.
This
exhibits
an
H
production
rate
high
60.33
µmol
g
−1
min
under
UV–vis
light
irradiation,
which
is
attributed
efficient
transport
at
interface
of
thanks
S‐scheme.
In‐situ
X‐ray
photoelectron
spectroscopy
(XPS)
electron
spin
resonance
(ESR)
spin‐trapping
tests
confirm
transfer
route.
Femtosecond
transient
absorption
(fs‐TA)
other
ex‐situ
characterizations
further
corroborate
across
interface.
work
offers
new
perspective
on
constructing
atoms
heterojunctions
enhance
photocatalytic
performance.
Angewandte Chemie International Edition,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Nov. 15, 2024
S-scheme
heterostructure
photocatalysts,
distinguished
by
unique
charge-transfer
pathways
and
exceptional
catalytic
redox
capabilities,
have
found
widespread
applications
in
addressing
challenging
chemical
processes,
including
the
photocatalytic
reduction
of
CO
Coatings,
Journal Year:
2025,
Volume and Issue:
15(2), P. 245 - 245
Published: Feb. 19, 2025
Quantum
dot
light-emitting
diodes
(QLEDs)
based
on
high-color-purity
blue
quantum
dots
(QDs)
are
crucial
for
the
development
of
next-generation
displays.
I-III-VI
type
QDs
have
been
recognized
as
eco-friendly
luminescent
materials
QLED
applications
due
to
their
tunable
band
gap
and
high-stable
properties.
However,
efficient
blue-emitting
remain
rare
owing
high
densities
intrinsic
defects
surface
defects.
Herein,
narrow-band
blue-emissive
CuAlSe2/Ga2S3/ZnS
is
synthesized
via
a
facile
strategy.
The
resulting
exhibit
sharp
emission
peak
at
450
nm
with
full
width
half
maximum
(FWHM)
35
nm,
achieved
by
coating
double-shell
structure
Ga2S3
ZnS,
which
associated
near-complete
passivation
Cu-related
(e.g.,
Cu
vacancies)
that
enhances
band-edge
emission,
accompanied
an
improvment
in
photoluminescence
yield
up
69%.
QLEDs
fabricated,
exhibiting
electroluminescence
453
FWHM
39
current
efficiency
3.16
cd
A−1,
external
0.35%.
This
research
paves
way
high-efficiency
QLEDs.
