Journal of Nanoelectronics and Optoelectronics,
Journal Year:
2024,
Volume and Issue:
19(11), P. 1156 - 1164
Published: Nov. 1, 2024
As
the
demand
for
selective
and
sensitive
gas
sensors
continues
to
escalate,
development
of
novel
materials
with
enhanced
performance
becomes
increasingly
imperative.
The
present
investigation
delves
into
fabrication
implementation
two-dimensional
cobalt
oxide
(Co
3
O
4
)
nanostructures
as
highly
proficient
discerning
identification
hydrogen
sulfide
(H
2
S)
within
intricate
environmental
circumstances.
distinct
configuration
Co
,
characterized
by
its
substantial
surface-to-volume
ratio
abundant
accessible
active
sites,
markedly
augments
adsorption
reaction
dynamics,
resulting
in
exceptional
sensitivity
selectivity
toward
H
S
over
other
potentially
confounding
gases.
Extensive
characterization
methodologies,
encompassing
X-ray
diffraction
(XRD),
scanning
electron
microscopy
(SEM),
transmission
(TEM),
corroborate
successful
synthesis
well-defined
nanosheets.
exhibited
optimal
detection
at
250
°C,
demonstrating
significant
(Response
=
214.45)
fast
response
recovery
times
(16.85
s
46.93
s,
respectively).
Its
was
further
validated
through
concentration-dependent
studies,
which
showed
high
accuracy
even
low
concentrations
(0.3–50
ppm).
sensor
also
displayed
excellent
gases,
minimal
interference
from
humidity,
maintained
stability
during
cyclic
exposure
long-term
operation
30
days.
These
findings
highlight
this
material
a
promising
due
superior
metrics.
incorporation
these
nanosheets
apparatus
offers
propitious
strategy
real-world
applications,
such
surveillance
industrial
safety
systems.
Applied Organometallic Chemistry,
Journal Year:
2025,
Volume and Issue:
39(6)
Published: May 14, 2025
ABSTRACT
The
proposed
study
was
undertaken
to
design
a
facile,
straightforward
recoverable
Titania@ITO‐grown
nanocatalyst,
owning
ironic
catalytic
sites
synthesized
via
liquid
phase
deposition
protocol.
size,
shape,
charge,
and
morphological
characteristics
of
the
functional
nanocatalyst
were
determined
zeta
seizer,
XRD,
potential,
SEM,
critically
disclosing
⁓5–6
nm,
anatase
crystalline
nature,
−44.0
mV,
flakes
or
sheet‐like
morphology,
respectively.
reuse
particles
evaluated
for
their
antimicrobial
efficiency.
obtained
data
revealed
that
titania
is
promising
ultrafast
reduction
organic
pollutants
(4‐nitrophenol)
with
99%
efficiency,
utilizing
only
120
μg
within
60
s
following
microwave‐assisted
protocols.
Moreover,
phenomenal
antibacterial
activity
disclosed
by
against
both
gram‐positive
gram‐negative
bacteria.
anticipated
advantageous
due
its
ultrafine
economical
design,
significant
amount
capabilities
in
short
space
time,
along
extreme
recyclability,
negligible
loss
abilities.
provided
here
more
valuable
useful
than
methods,
symbolizing
an
exceptional
commercial
icon.
Journal of Nanoelectronics and Optoelectronics,
Journal Year:
2024,
Volume and Issue:
19(11), P. 1156 - 1164
Published: Nov. 1, 2024
As
the
demand
for
selective
and
sensitive
gas
sensors
continues
to
escalate,
development
of
novel
materials
with
enhanced
performance
becomes
increasingly
imperative.
The
present
investigation
delves
into
fabrication
implementation
two-dimensional
cobalt
oxide
(Co
3
O
4
)
nanostructures
as
highly
proficient
discerning
identification
hydrogen
sulfide
(H
2
S)
within
intricate
environmental
circumstances.
distinct
configuration
Co
,
characterized
by
its
substantial
surface-to-volume
ratio
abundant
accessible
active
sites,
markedly
augments
adsorption
reaction
dynamics,
resulting
in
exceptional
sensitivity
selectivity
toward
H
S
over
other
potentially
confounding
gases.
Extensive
characterization
methodologies,
encompassing
X-ray
diffraction
(XRD),
scanning
electron
microscopy
(SEM),
transmission
(TEM),
corroborate
successful
synthesis
well-defined
nanosheets.
exhibited
optimal
detection
at
250
°C,
demonstrating
significant
(Response
=
214.45)
fast
response
recovery
times
(16.85
s
46.93
s,
respectively).
Its
was
further
validated
through
concentration-dependent
studies,
which
showed
high
accuracy
even
low
concentrations
(0.3–50
ppm).
sensor
also
displayed
excellent
gases,
minimal
interference
from
humidity,
maintained
stability
during
cyclic
exposure
long-term
operation
30
days.
These
findings
highlight
this
material
a
promising
due
superior
metrics.
incorporation
these
nanosheets
apparatus
offers
propitious
strategy
real-world
applications,
such
surveillance
industrial
safety
systems.
