Sakarya University Journal of Science,
Год журнала:
2024,
Номер
28(6), С. 1307 - 1314
Опубликована: Дек. 23, 2024
In
this
study,
a
dip
coating
device
was
designed
using
low-cost
materials
and
performance
tests
were
performed.
The
method
is
an
efficient
technique
used
to
samples
into
chemical
solutions
produce
thin
films.
system
provides
precise
movement
in
the
vertical
axis
with
stepper
motor,
while
heating
unit
can
be
apply
heat
treatment
during
process.
controlled
by
Arduino
allows
user
adjust
number
of
dips,
waiting
times
speed.
order
test
operation
system,
ZnO
films
produced,
these
evaluated
XRD,
SEM
UVspectrophotometer
analyses.
As
result
analyses,
it
determined
that
structural
optical
properties
produced
accordance
data
literature.
These
results
prove
successful
functional.
Abstract
2D
metal
carbides/nitrides
(MXenes)
have
attracted
considerable
interest
in
NH
3
sensing
due
to
their
high
electrical
conductivity
and
abundant
terminal
groups.
However,
the
strong
interlayer
interactions
between
MXene
nanosheets
result
challenges
related
recovery
rapid
response
decay
MXene‐based
sensors.
Here,
a
one‐step
hydrothermal
strategy
is
developed
that
anchors
Zn
atoms
grows
ZnO
polycrystals
on
Ti
vacancies
of
C
2
T
x
layers,
forming
sandwich‐structured
ZnO/Ti
heterojunction.
At
room
temperature,
sensitivity
remarkable
45‐fold
higher
than
,
with
low
detection
limit
138
ppb
time
39
s.
Furthermore,
heterojunction
exhibits
exceptional
long‐term
stability,
maintaining
consistent
over
21
days.
The
results
confirm
situ
intercalation
effectively
solves
problem
substrates
by
completely
exfoliating
nanosheets.
Meanwhile,
room‐temperature
performance
speed
enhanced
electron
conduction.
This
straightforward
effective
route
for
exfoliation
layers
promises
expanded
use
material
heterojunctions
applications.
ACS Applied Nano Materials,
Год журнала:
2024,
Номер
7(11), С. 13206 - 13218
Опубликована: Июнь 4, 2024
The
real-time
detection
of
harmful
gases
like
NO2
and
NH3
is
crucial
for
smart
agriculture
the
noninvasive
diagnosis
kidney,
liver,
lung,
heart
diseases.
However,
sensing
these
understanding
primary
mechanisms
can
be
challenging
since
nitrogen
site
or
that
binds
crystallite.
Herein,
we
designed
fabricated
low-cost
sensors
dual
using
a
nanodevice-on-chips
sensor
(NDCS)
with
mixed-valence
Co3O4
(Co2+
Co3+).
Co3O4–NDCS
detects
at
low
power,
room
temperature,
70%
relative
humidity.
It
also
exhibits
stable,
recoverable,
reproducible
performance
NH3,
comparable
to
several
high-performance
sensors.
performances
are
closely
related
two
distinct
Co
sites
Co3+)
in
crystal.
Co2+
could
host
atom
either
form
Co–N
bonding,
which
preferable
detection.
Meanwhile,
N
replace
one
six
oxygen
atoms
coordinating
Co3+
favorable
Looking
forward,
strategy
proposed
here
makes
it
possible
fabricate
gas
desired
nanostructures
known
mechanisms.
