Nanomaterials,
Journal Year:
2024,
Volume and Issue:
14(8), P. 719 - 719
Published: April 19, 2024
Nowadays,
metal
oxide
semiconductor
gas
sensors
have
diverse
applications
ranging
from
human
health
to
smart
agriculture
with
the
development
of
Internet
Things
(IoT)
technologies.
However,
high
operating
temperatures
and
an
unsatisfactory
detection
capability
(high
sensitivity,
fast
response/recovery
speed,
etc.)
hinder
their
integration
into
IoT.
Herein,
a
ternary
heterostructure
was
prepared
by
decorating
WO3
nanoplates
Au
SnO2
nanoparticles
through
facial
photochemical
deposition
method.
This
employed
as
sensing
material
for
3-hydroxy-2-butanone
(3H-2B),
biomarker
Listeria
monocytogenes.
These
Au/SnO2–WO3
nanoplate-based
exhibited
excellent
response
(Ra/Rg
=
662)
25
ppm
3H-2B,
which
24
times
higher
than
that
pure
at
140
°C.
Moreover,
3H-2B
sensor
showed
ultrafast
recovery
speed
well
selectivity.
performances
could
be
attributed
rich
active
interfaces
transport
carriers
in
nanoplates.
Furthermore,
wireless
portable
equipped
assembled,
tested
using
known
concentrations
study
possibilities
real-time
monitoring
food
quality
safety.
Nanomaterials,
Journal Year:
2024,
Volume and Issue:
14(8), P. 719 - 719
Published: April 19, 2024
Nowadays,
metal
oxide
semiconductor
gas
sensors
have
diverse
applications
ranging
from
human
health
to
smart
agriculture
with
the
development
of
Internet
Things
(IoT)
technologies.
However,
high
operating
temperatures
and
an
unsatisfactory
detection
capability
(high
sensitivity,
fast
response/recovery
speed,
etc.)
hinder
their
integration
into
IoT.
Herein,
a
ternary
heterostructure
was
prepared
by
decorating
WO3
nanoplates
Au
SnO2
nanoparticles
through
facial
photochemical
deposition
method.
This
employed
as
sensing
material
for
3-hydroxy-2-butanone
(3H-2B),
biomarker
Listeria
monocytogenes.
These
Au/SnO2–WO3
nanoplate-based
exhibited
excellent
response
(Ra/Rg
=
662)
25
ppm
3H-2B,
which
24
times
higher
than
that
pure
at
140
°C.
Moreover,
3H-2B
sensor
showed
ultrafast
recovery
speed
well
selectivity.
performances
could
be
attributed
rich
active
interfaces
transport
carriers
in
nanoplates.
Furthermore,
wireless
portable
equipped
assembled,
tested
using
known
concentrations
study
possibilities
real-time
monitoring
food
quality
safety.