ChemistrySelect,
Journal Year:
2024,
Volume and Issue:
9(40)
Published: Oct. 1, 2024
Abstract
Efforts
to
mitigate
the
environmental
and
health
risks
associated
with
antibiotic
ofloxacin
necessitate
innovative
methodologies
for
its
detection.
The
cost
of
expensive
carbon
materials
like
nanofibers
can
be
reduced
by
making
their
hybrids
biomass‐derived
materials.
In
this
context,
a
nitrogen‐functionalized
nanofiber‐based
nanocomposite
(N‐LN‐CNF),
incorporating
activated
derived
from
Lantana
Camara
,
was
fabricated
detection
ofloxacin.
X‐ray
photoelectron
spectroscopy
Fourier
Transform
Infrared
analyses
confirmed
presence
nitrogen
functionalities
in
N‐LN‐CNF.
surface
internal
morphology
were
analyzed
using
field
emission
scanning
electron
microscopy
high‐resolution
transmission
microscopy.
material
tested
as
an
electrochemical
sensor
A
linear
response
observed
range
2
μM
43
N‐LN‐CNF/GCE
via
sweep
voltammetry
(LSV)
limit
(LOD)
1.92
μM.
interaction
between
electrode
analyte
is
combination
diffusion
adsorption‐controlled
processes.
This
metal‐free
offers
sustainable
approach
detecting
water
pharmaceutical
preparations.
ChemNanoMat,
Journal Year:
2024,
Volume and Issue:
10(6)
Published: April 16, 2024
Abstract
Functionalized
multi‐walled
carbon
nanotubes
(MWCNTs)
have
enticed
remarkable
attention
in
the
field
of
electrochemical
sensing
applications.
Dopamine
(DA)
is
a
monoamine
neurotransmitter
released
brain
acting
as
chemical
messenger
that
communicates
messages
between
nerve
cells
and
rest
body.
Therefore,
there
significant
technological
urge
for
development
sensors
DA
body
fluids.
In
this
context,
nitrogen‐functionalized
MWCNTs
(TM‐CNT600)
were
fabricated
by
thermal
annealing
carboxylic
acid
functionalized
with
thiourea
at
600
°C
under
N
2
atmosphere.
The
XPS
spectrum
reveals
presence
nitrogen‐containing
functionalities
as‐prepared
TM‐CNT600.
FTIR
results
show
−OH,
C−N
C−S
functional
groups.
further
corroborates
quantifies
predominant
groups
material.
material
was
investigated
potential
sensor
detection
dopamine
(DA).
case
TM‐CNT600/GCE,
linear
relationship
concentration
observed
range
10.7–24.2
μM
limit
(LOD)
1.42
using
sweep
voltammetry
(LSV).
These
highlight
TM‐CNT600
modified
GCE
an
efficient
Energy Technology,
Journal Year:
2024,
Volume and Issue:
12(7)
Published: May 15, 2024
Sustainability
and
waste
management
are
equally
important
in
the
era
of
growing
energy
demands.
This
study
focuses
on
integrating
strategies
that
balance
efficiency,
reduce
generation,
promote
sustainable
practices.
The
coconut
husk
is
processed
converted
into
mesoporous
carbon
nanomaterial
through
hydrothermal‐assisted
thermal
annealing.
Nitrogen
doped
melamine
to
increase
reactive
sites
hence
catalytic
activity.
sphere‐like
morphology
was
confirmed
by
field
emission
scanning
electron
microscope
high‐resolution
transmission
images
indicate
a
dot‐like
structure.
high
Brunauer‐Emmett‐Teller
surface
area
achieved
for
this
nanostructure
1383.40
m
2
g
−1
,
with
pore
width
volume
at
2.2660
nm
0.2995
cm
3
respectively.
as‐synthesized
explored
its
electrochemical
performance
as
electrodes
supercapacitor
application,
where
materials
achieve
wide
potential
window
(−1.4
1.4
V)
minimum
time
50
s
current
density
0.6
A
.
Moreover,
highest
specific
capacitance
obtained
from
115.39
F
V
density,
power
coulombic
efficiency
set
parameter
62.31
Wh
Kg
1166.4
W
79.61%,
Finally,
practical
device
assembled
nanomaterial,
red
LED
bulb
glows
after
1
min
charging.
Heliyon,
Journal Year:
2024,
Volume and Issue:
10(20), P. e39090 - e39090
Published: Oct. 1, 2024
Highlights•Metal-free
sustainable
electrochemical
sensor
is
developed.•N
and
S-rich
biomass-derived
mesoporous
carbon
successfully
developed
through
hydrothermal
carbonization.•Mesoporous
material
used
for
the
detection
of
lead
DPASV.•It
shows
an
excellent
limit
22
nM.AbstractThis
study
has
explored
solution
after
designing
economical
metal-free
nanocarbon
selective
sensing
lead.
The
nitrogen
sulfur-rich
designed
a
facile
hydrothermal-assisted
thermal
annealing
method.
high-temperature
treatment
gave
unique
dot
decorated
layered
morphology,
while
sulfur
precursor
thiourea
melamine
strengthened
nanomaterial
stability,
sensitivity,
selectivity
toward
metal
ions.
high
specific
surface
area
viz.,
1671.93
m2/g
with
pore
width
volume
2.02
nm
0.476
cm3/g
enhanced
conductivity
as-synthesized
sensor,
which
helps
in
increasing
sensitivity
was
also
confirmed
cyclic
voltammetry,
where
80
%
increment
current
observed
case
modified
electrode
when
compared
bare
GCE.
differential
pulse
normal
voltammetry
anodic
stripping
were
performed
to
calculate
limit,
nM
obtained
from
DPASV
technique.
Moreover,
tested
detecting
tap
water.
nanocomposite
highly
efficient
This
will
motivate
researchers
engineer
devices
pollutants.
ChemistrySelect,
Journal Year:
2025,
Volume and Issue:
10(6)
Published: Feb. 1, 2025
Abstract
The
development
of
biomass‐derived
nanomaterials
like
carbon
nanotubes
(CNT),
graphene,
and
nanofibers
has
revolutionized
multiple
domains
in
the
scientific
industrial
communities.
Notably,
quantum
dots
(QDs),
such
as
(CQDs)
synthesized
from
biomass,
have
garnered
significant
attention
for
their
synthesis
biomass
sources,
marking
a
shift
toward
sustainability
eco‐friendliness.
Quantum
(QDs)
are
0D
type
nanoparticles
whose
properties
typically
depend
on
shape,
size,
materials
used
synthesis.
This
review
outlines
top–down
bottom–up
approaches
CQD
production
lignocellulosic
algal
sources.
It
also
discusses
various
characterization
techniques
focusing
optical
structural
properties.
Furthermore,
article
elaborates
applications
CQDs,
catalysis,
supercapacitors,
drug
delivery.
provides
comprehensive
overview
synthesis,
characterization,
versatile
utility
using
green
sustainable
source
material.
is
to
be
noted
that
CQDs
demonstrate
characteristics
comparable
or
superior
those
metal‐based
semiconductor
dots,
organically
CQDs.
ChemistrySelect,
Journal Year:
2025,
Volume and Issue:
10(13)
Published: April 1, 2025
Abstract
Sensor‐based
technologies
are
driving
a
revolution
in
environmental
monitoring,
enabling
precise
measurement
and
effective
pollutant
management.
Accurate
quantification
of
pollutants
is
the
foundation
upon
which
remediation,
protection,
policy
enforcement
solutions
built.
These
ensure
that
management
strategies
data‐driven,
precise,
responsive
to
real‐time
conditions.
This
study
has
explored
sustainable
yet
development
sensor
from
parthenium
hysterophorus
waste
biomass
for
detecting
lead
mercury
ions.
The
catalytic
graphitization
process
effectively
converted
plant
into
graphitized
carbon.
A
metal
catalyst
specific
functional
groups
introduced
enhance
conductivity
sensitivity
nanocomposite.
porous
network
graphene‐like
nanostructure,
along
with
high
crystallinity,
successfully
developed,
where
presence
silver,
nitrogen,
sulfur,
oxygen
confirmed
through
EDS
XPS.
FE‐SEM
images
represent
layered
structure
nanocomposite,
while
TEM
indicated
carbon
distribution
silver
nanoparticles
on
it.
XRD
spectra
have
shown
clear
peak
at
26°,
indicates
architecture
crystallinity.
CV
was
also
conducted
redox
behavior
DPASV
Nanocomposite
shows
selectivity
mixed
solution.
It
detection
limits
600
300
nM
At
same
time,
real
sample
showed
good
response,
limit
400
obtained
tap
water.
RSD
calculated
after
studying
response
three
different
electrodes
3.2%.
nanocomposite
stability
even
60
days
storage.
paves
way
developing
nanomaterials
sensing
heavy
