Arabian Journal of Chemistry,
Journal Year:
2022,
Volume and Issue:
15(9), P. 104059 - 104059
Published: June 20, 2022
A
new
MgO-AC
(magnesium
oxide
modified
activated
carbon)
adsorbent
was
successfully
synthesized
under
microwave
irradiation.
XRD,
FT-IR,
XPS,
SEM
and
N2
adsorption
were
used
to
characterize
the
properties
of
MgO-AC.
It
found
that
highly
crystalline
preparation
process,
doping
MgO
(Magnesium
oxide)
did
not
cause
gap
blockage
AC
(activated
carbon),
but
micropore
area
average
pore
size
increased
significantly.
Multiple
conditional
parameters
studied
determine
optimal
effect,
such
as
roasting
temperature,
holding
time,
amount,
contact
system
pH,
initial
concentration
Cd(II)
(divalent
cadmium
ion).
The
results
show
parameter
conditions
are
follows:
insulation
temperature
is
800
°C,
time
40
min,
amount
1/20
AC,
maximum
capacity
649.9
mg·g−1
at
pH
=
7.
In
addition,
thermodynamic
studies
process
spontaneous
endothermic,
kinetic
isotherm
models
pseudo-second-order
model
Langmuir
well
fitted
for
process.
CHINESE JOURNAL OF ANALYTICAL CHEMISTRY (CHINESE VERSION),
Journal Year:
2024,
Volume and Issue:
52(3), P. 100368 - 100368
Published: Feb. 11, 2024
There
is
an
urgent
need
to
develop
multifunctional
cost-effective
nanomaterials
and
nanocomposites
that
can
be
used
in
numerous
applications
while
showing
high
efficiency
cheaper
implementation
compared
conventional
techniques
and/or
materials.
In
this
work,
zinc/iron
layered
double
hydroxide
(LDH)
polyaniline
(PANI)
were
synthesized
as
a
model
LDH/conductive
polymer
nanocomposite,
which
promising
family
of
cheap
This
electrochemical
properties
nanocomposite
was
investigated
for
detection
heavy
metal
(HM)
ions
water
streams,
using
lead
HM
.
the
present
LDH
PANI
assigned
carbon
paste
electrode
modifier.
The
composite
fully
characterized
various
characterization
including
X-ray
diffraction
(XRD),
scanning
electron
microscope
(SEM),
Fourier
transform
InfraRed
(FTIR).
redox
reactions
(II)
at
modified
interface
cyclic
voltammetry
(CV),
differential
pulse
(DPV),
Accordingly,
linear
relation
Pb2+
achieved
concentration
range
1–80
µM
with
limit
(LOD)
167.8
nM
quantification
(LOQ)
559.4
nM.
Furthermore,
cost
such
material
removal
typical
adsorption
study
inductively
coupled
plasma
(ICP)
or
atomic
absorption
spectrometry
(AAS)
equipment
tracking
during
process.
Cost
analysis
revealed
final
overall
estimated
1.25
USD.
represents
less
than
0.1%
total
required
conduct
same
ICP
AAS
equipment.
pave
road
towards
portable
measurements
onsite
wastewater
pollutants
disposable-electrodes
massive
expensive
off
site
AAS.
Arabian Journal of Chemistry,
Journal Year:
2022,
Volume and Issue:
15(9), P. 104059 - 104059
Published: June 20, 2022
A
new
MgO-AC
(magnesium
oxide
modified
activated
carbon)
adsorbent
was
successfully
synthesized
under
microwave
irradiation.
XRD,
FT-IR,
XPS,
SEM
and
N2
adsorption
were
used
to
characterize
the
properties
of
MgO-AC.
It
found
that
highly
crystalline
preparation
process,
doping
MgO
(Magnesium
oxide)
did
not
cause
gap
blockage
AC
(activated
carbon),
but
micropore
area
average
pore
size
increased
significantly.
Multiple
conditional
parameters
studied
determine
optimal
effect,
such
as
roasting
temperature,
holding
time,
amount,
contact
system
pH,
initial
concentration
Cd(II)
(divalent
cadmium
ion).
The
results
show
parameter
conditions
are
follows:
insulation
temperature
is
800
°C,
time
40
min,
amount
1/20
AC,
maximum
capacity
649.9
mg·g−1
at
pH
=
7.
In
addition,
thermodynamic
studies
process
spontaneous
endothermic,
kinetic
isotherm
models
pseudo-second-order
model
Langmuir
well
fitted
for
process.
