Materials science forum,
Journal Year:
2024,
Volume and Issue:
1141, P. 119 - 126
Published: Dec. 20, 2024
The
filtration
of
hexavalent
chromium
(Cr(VI))
presents
a
significant
challenge
in
water
treatment
due
to
its
toxicity
and
environmental
impact.
This
study
is
oriented
towards
the
development
zeolite-based
membrane
for
removal
Cr(VI)
ions.
Flat
supports
are
made
from
clay
with
particle
size
between
160
250
µm
then
characterized
by
different
techniques
namely
FTIR,
XRD,
point
zero
charge
(pHpzc).
support
creates
porous
structure,
ideal
adsorbing
ions,
while
LTA-type
zeolite
offers
selective
permeability,
through
narrow
pore
size,
tuning
volume
down
on
Cr(VI).
Filtration
experiments
were
conducted
under
pressure
1.0
bar,
initial
concentration
10
-4
M
pH
=
5.4
evaluate
efficiency
performance
composite
membrane.
Results
demonstrate
reduction
concentration,
30%
50%
retention
LTA-zeolite
respectively.
proposed
methodology
has
potential
create
advanced
systems
that
can
effectively
remove
pollutants
aqueous
solutions,
thereby
challenging
important
issues.
Journal of Materials Science,
Journal Year:
2024,
Volume and Issue:
59(30), P. 13961 - 13977
Published: July 25, 2024
Abstract
A
new
electrode
based
on
carbon
paste
(CP)
modified
with
natural
clay
was
used
for
heavy
metals
detection.
The
investigation
of
the
raw
material
(X-ray
diffraction,
infrared
spectroscopy,
scanning
electron
microscopy,
energy-dispersive
X-ray
thermal
analysis
and
particle
size
distribution)
revealed
different
morpho-structural
properties
material.
electrochemical
behaviour
its
ability
to
detect
(Zn
2+
,
Cd
Cu
)
studied
by
techniques
like
cyclic
voltammetry
(CV),
impedance
spectroscopy
(EIS),
square
wave
anodic
stripping
(SWASV).
Both
analytical
parameters
investigated
recommend
them
as
stable,
sensitive
reproducible
sensors
individual
