RSC Advances,
Год журнала:
2023,
Номер
13(50), С. 35562 - 35568
Опубликована: Янв. 1, 2023
Herein,
we
synthesized
a
hydrophilic
support
formed
from
amorphous
Cr
2
O
3
and
KIT-6
containing
P123
using
simple
solvent-free
thermal
method
for
Co
species.
ACS Sensors,
Год журнала:
2023,
Номер
8(6), С. 2124 - 2148
Опубликована: Июнь 5, 2023
As
an
emerging
porous
crystalline
organic
material,
the
covalent
frameworks
(COFs)
are
given
more
and
attention
in
many
fields,
such
as
gas
storage
separation,
catalysis,
energy
conversion,
luminescent
devices,
drug
delivery,
pollutant
adsorption
removal,
analysis
detection
due
to
their
special
advantages
of
high
crystallinity,
flexible
designability,
controllable
porosities
topologies,
intrinsic
chemical
thermal
stability.
In
recent
years,
COFs
applied
analytical
chemistry,
for
instance,
chromatography,
solid-phase
microextraction,
colorimetric
sensing,
surface-enhanced
Raman
scattering
electroanalytical
chemistry.
The
decorated
electrodes
show
performance
detecting
trace
substances
with
remarkable
selectivity
sensitivity,
heavy
metal
ions,
glucose,
hydrogen
peroxide,
drugs,
antibiotics,
explosives,
phenolic
compounds,
pesticides,
disease
metabolites
so
on.
This
review
mainly
summarized
application
COF
based
electrochemical
sensor
according
different
target
analytes.
RSC Advances,
Год журнала:
2023,
Номер
13(27), С. 18734 - 18747
Опубликована: Янв. 1, 2023
In
this
paper,
for
the
first
time,
we
report
use
of
a
new
carbon
paste
electrode
based
on
low-cost
pencil
graphite
powder
modified
with
polyaniline
(PANI)
and
green
synthesized
copper
oxide
nanoparticles
using
Ficus
elastica
extract
as
sensor
Cd2+,
Pb2+,
Hg2+.
The
elaborated
was
characterized
by
FT-IR
spectroscopy,
field-emission
gun
scanning
electron
microscopy
(FEG-SEM),
energy-dispersive
X-ray
spectroscopy
(EDX),
diffraction
(XRD),
simultaneous
thermal
analysis
(TGA/DSC).
electrochemical
behavior
evaluated
cyclic
voltammetry
(CV)
impedance
techniques.
According
to
CV,
well
square
wave
(SWV)
results,
it
found
that
CuONPs/PANI-CPE
able
determine
very
low
concentrations
Hg2+
in
HCl
(0.01
M)
either
single
metal
or
multi-metal
solutions
high
sensitivity.
Furthermore,
detection
achieved
limits
(0.11,
0.16,
0.07
μg
L-1,
respectively).
Besides,
designed
displayed
good
selectivity,
reproducibility,
stability.
Moreover,
enabled
us
accuracy
traces
environmental
matrices.