AIMS energy,
Год журнала:
2024,
Номер
12(6), С. 1334 - 1365
Опубликована: Янв. 1, 2024
<p>The
field
of
energy
harvesting
has
grown
rapidly,
with
the
huge
development
in
low-power
devices
and
Internet
Things
(IoT).
With
intent
electrical
for
self-powered
devices,
piezoelectric
technology
is
considered.
In
this
study,
we
proposed
several
mechanical
improvements
to
enhance
produced
through
piezoelectricity.
To
determine
best
configuration
harvest
energy,
three
electric
circuits
were
tested
using
a
material
(PZT-5H)
mounted
directly
on
vibration
exciter.
The
harvested
by
each
circuit
was
determined
at
different
excitation
frequencies,
from
20
50
Hz,
an
amplitude
2
mm.
favorable
approximately
35
μJ
frequency
Hz.
This
subsequently
used
remaining
aspects
work.
obtained
fixed-free
metallic
plate
used.
First,
free
tried,
imposing
displacement
values
end
plate.
consisted
materials:
copper,
aluminum,
steel.
PZT-5H
positions
material,
position,
displacement.
highest
around
6
μJ.
Second,
forced
0.5
mm
10
fixed
lengths.
540
Third,
showed
that
it
possible
further
increase
tuning
resonance
then
1010
results
allowed
optimizing
toward
supplying
applications.</p>
Nano Letters,
Год журнала:
2024,
Номер
24(37), С. 11624 - 11631
Опубликована: Сен. 3, 2024
Degradation
of
polyolefin
(PE)
plastic
by
a
traditional
chemical
method
requires
high
pressure
and
temperature
but
generates
complex
products.
Here,
sulfur
vacancy-rich
ZnIn
Nano Letters,
Год журнала:
2024,
Номер
24(43), С. 13718 - 13726
Опубликована: Окт. 15, 2024
Halide
perovskite
nanocrystals
(HPNCs)
have
emerged
as
promising
materials
for
various
light
harvesting
applications
due
to
their
exceptional
optical
and
electronic
properties.
However,
inherent
instability
in
water
biological
fluids
has
limited
use
photocatalysts
the
aqueous
phase.
In
this
study,
we
present
highly
water-stable
SiO2-coated
HPNCs
efficient
antimicrobial
applications.
The
double
SiO2
layer
coating
method
confers
long-term
structural
stability
water,
while
situ
synthesis
of
lead-
bismuth-based
NCs
into
shell
enhances
versatility
tunability.
We
demonstrate
that
substantial
generation
singlet
oxygen
via
energy
transfer
from
enables
photoinduced
antibacterial
efficacy
under
conditions.
More
than
90%
Escherichia
coli
was
inactivated
mild
visible
irradiation
6
h.
excellent
photocatalytic
performance
suggests
hold
great
potential
phase
