Cellulose-based
carbon
(CBC)
has
been
widely
concerned
with
its
porous
structure,
high
specific
surface
area,
and
is
liable
to
adsorb
gas
molecules
macromolecular
pollutants.
However,
the
application
of
CBC
in
sensing
little
studied.
In
this
paper,
ZnO/CBC
heterojunction
was
formed
by
means
simple
co-precipitation
temperature
carbonization.
As
a
new
ammonia
sensor,
prepared
sensor
can
detect
compared
that
previous
pure
ZnO
not
at
room
temperature.
It
great
response,
stability
selectivity
concentration
200
ppm.
This
study
provides
idea
for
design
synthesis
biomass
carbon-metal
oxide
composites.
Current Opinion in Environmental Science & Health,
Journal Year:
2024,
Volume and Issue:
unknown, P. 100532 - 100532
Published: Jan. 1, 2024
Proper
vigilance
on
the
levels
of
various
gases
concern,
especially
toxic
ones,
is
vital
for
reducing
risk
environmental
damage.
This
impels
demand
highly
accurate
and
adequate
gas
sensing
systems
which
are
in
but
not
practice.
gap
can
be
filled
by
5th-generation
nano-enabled
sensors
offer
room-temperature
sensing,
flexibility,
high
selectivity,
low
cost,
self-powered
operation,
humidity
resistance,
portable
size.
These
features
key
requirements
integrating
into
modern
Internet-of-things
(IoT)
systems.
perspective
highlights
trends
progressions
(2020-2023)
developing
tailored
nanomaterials
to
fabricate
cutting-edge
performance
desired
manner
conditions,
example,
point-of-care
(POC),
point-of-location
testing.
The
challenges
associated
with
such
materials
scientific
endeavors
address
issues
have
also
been
discussed.
ACS Sensors,
Journal Year:
2024,
Volume and Issue:
9(6), P. 3262 - 3271
Published: May 29, 2024
As
trimethylamine
(TMA)
is
widely
used
in
agriculture
and
industry,
inhalation
of
TMA
can
cause
very
serious
negative
effects
on
human
health.
However,
most
the
current
gas
sensors
for
detecting
are
commonly
performed
at
high
temperatures
cannot
meet
market
needs.
Inspired
by
this,
we
prepared
imine
covalent
organic
frameworks
(TB-COF)
synthesized
from
two
monomers,
1,3,5-tris(4-aminophenyl)benzene
(TAPB)
1,3,5-benzotricarboxaldehyde
(BTCA),
using
acetic
acid
as
a
catalyst
room
temperature.
Based
three
were
sensitivity
testing,
namely,
TA,
BT,
TB-COF
sensors.
The
tested
15
different
gases
From
whole
data,
sensor
made
compositing
TA
BT
has
higher
(6845.9%)
to
500
ppm,
which
6.1
5.4
times
than
response
sensors,
respectively.
adsorbs
desorbs
controlled
23
s
cycle
with
low
detection
limit
28.6
ppb.
This
result
indicates
that
temperature
be
gas-sensitive
sensing
material
real-time
monitoring
TMA.
results
demonstrate
great
potential
COFs
development
application
provide
ideas
further
COFs-based
