The Influence of Pore Size on the Photocatalytic and SERS Performance of Nanoporous Au–Ag Shells
Wenpeng Yang,
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Wenguang Geng,
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Xiyuan Lu
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et al.
Molecules,
Journal Year:
2025,
Volume and Issue:
30(7), P. 1475 - 1475
Published: March 26, 2025
Nanoporous
metals
have
garnered
significant
attention
in
catalysis
due
to
their
unique
three-dimensional
interconnected
network
structure
and
pronounced
localized
surface
plasmon
resonance
(LSPR)
properties.
In
this
study,
nanoporous
Au–Ag
shells
with
varying
pore
sizes
(8,
10,
12,
18
nm)
were
synthesized,
catalytic
efficiencies
systematically
evaluated.
The
conversion
of
p-nitrothiophenol
(PNTP)
dimercapto-azobenzene
(DMAB)
was
used
investigate
the
influence
size
on
reaction
kinetics
surface-enhanced
Raman
scattering
(SERS)
effects.
Experimental
results
reveal
that
a
12
nm
exhibit
relatively
high
efficiency.
Furthermore,
tuning
enables
modulation
LSPR
near-infrared
region.
These
findings
highlight
critical
role
determining
photocatalytic
performance
metallic
materials
provide
valuable
insights
for
design
optimization
highly
efficient
photocatalysts.
Language: Английский
Preparation of Hierarchical Porous Zeolite Particles with Multiscale Pore Architectures through a Template-Assisted Spray Process for Enhanced Toluene Adsorption Rate
Kiet Le Anh Cao,
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Duhaul Biqal Kautsar,
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K. Kume
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et al.
ACS Applied Materials & Interfaces,
Journal Year:
2025,
Volume and Issue:
unknown
Published: April 1, 2025
Hierarchical
porous
zeolite
particles
featuring
multiscale
pore
architectures
have
gained
significant
attention
due
to
their
enhanced
mass
transfer
properties
and
superior
adsorption
capabilities.
This
study
reports
the
first
successful
synthesis
of
hierarchical
zeolites
with
integrated
micropores,
mesopores,
macropores
using
a
template-assisted
spray
process,
addressing
limitations
conventional
in
adsorbing
large
organic
molecules
such
as
toluene.
By
employing
poly(methyl
methacrylate)
(PMMA)
(about
350
nm
size)
template,
we
achieved
precise
control
over
macropore
formation,
providing
new
level
flexibility
tailoring
architectures.
The
effect
PMMA/zeolite
ratio
on
resulting
macroporous
structures
toluene
performance
was
systematically
investigated.
results
revealed
that
exhibited
significantly
rate
compared
samples
synthesized
without
PMMA
template.
improvement
is
attributed
optimized
structure,
which
facilitates
efficient
transfer.
Importantly,
this
addresses
critical
gap
literature
by
demonstrating
integration
into
through
an
environmentally
friendly
implications
for
applications
volatile
compound
removal.
advancement
design
could
enable
more
practical
solutions
industrial
air
purification
environmental
remediation.
Language: Английский