International Journal of Environmental & Analytical Chemistry,
Journal Year:
2024,
Volume and Issue:
unknown, P. 1 - 23
Published: Dec. 12, 2024
The
removal
of
contaminants
from
the
water
system
is
so
significant
for
better
human
life.
Adsorption
method
proven
to
be
best
decontamination
waste
water.
Adsorbent
based
on
biohydrogel
widely
used
this
purpose
biooriginated
adsorbent
named
GG-g-
P(AA)/CoFe2O4
(30
mg)-GGAACF-3
was
synthesised
and
utilised
combine
metformin
hydrochloride
(MF)
diclofenac
sodium
(DCF).
prepared
using
free
radical
initiator
ammonium
persulphate(APS),
cross-linked
crosslinking
agent
N,
N'-
methylenebisacrylamide
(MBA)
accelerator
tetramethyl
ethylenediamine
(TEMED).
GGAACF-3
exhibited
high
efficiency
DCF
than
MF.
highest
MF
found
82.17%
69.26%
at
dose
40
mg,
neutral
pH,
room
temperature
(20°C)
contact
time
24
h,
respectively.
both
drugs
followed
Langmuir
adsorption
isotherm
Pseudo-
2nd-order
model
kinetic
which
indicated
about
homogeneous
surface
chemisorption,
maximum
capacity
(qe)
determined
123.60
mg/g
120.7729
mg/g,
Langmuir,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Feb. 14, 2025
Water
pollution
by
dyes
is
a
serious
environmental
issue
of
modern
society
that
needs
to
be
addressed
effectively.
Herein,
promising
adsorbent,
i.e.,
3D
composite
aerogel,
was
developed
using
reduced
graphene
oxide
and
silk
fibroin
(rGO-SF)
via
hydrothermal
freeze-drying
techniques.
The
efficiency
the
prepared
aerogel
toward
methylene
blue
(MB)
dye
adsorption
explored
in
batch
experiments.
A
study
revealed
capacity
rGO-SF120
as
249.89
mg/g
dye.
also
selectively
adsorbs
MB
over
other
dyes,
such
rhodamine
B
(RhB)
orange
(MO).
process
mainly
chemical
(as
data
fitted
well
both
pseudo-second-order
Elovich
kinetic
models)
followed
Langmuir
model,
indicating
it
formed
single
layer
on
its
surface.
Overall,
an
effective
potential
candidate
for
treating
dye-loaded
water
with
high
efficiency.
Journal of Dispersion Science and Technology,
Journal Year:
2025,
Volume and Issue:
unknown, P. 1 - 12
Published: Feb. 7, 2025
Water
is
essential
for
all
life
forms,
serving
as
the
fundamental
element
biological
processes
and
sustaining
ecosystems.
Cadmium
ions
(Cd
II)
are
highly
toxic
often
found
in
industrial
effluents,
polluting
water,
soil,
atmosphere.
This
study
investigates
low-rank
Pakistani
coal
(LRPC)
an
adsorbent
removing
Cd
(II)
from
wastewater.
Characterization
of
LRPC
was
carried
out
with
scanning
electron
microscopy
(SEM)
Fourier-transform
infrared
spectroscopy
(FTIR).
These
techniques
demonstrated
changes
adsorbent's
properties
after
adsorption.
Batch
adsorption
experiments
were
systematically
to
effects
exposure
time,
pH,
mass,
temperature,
initial
concentration
metal
ions.
The
pseudo-second-order
kinetic
model,
a
correlation
coefficient
(R2)
0.99,
best
described
process.
90%
removal
achieved
within
70
min
at
pH
5,
using
0.5
grams
10
mL
8.896
×
10−³
mol/L
cadmium
solution.
Freundlich
isotherm
exhibited
fit
data,
0.99.
Thermodynamic
analysis
indicated
that
process
non-spontaneous
endothermic,
sorption
energy
4.09
kJ/mol
suggesting
physisorption
mechanism.
impact
foreign
desorption
also
evaluated.
novelty
this
lies
its
exploration
low-cost
effective
findings
show
can
be
used
economical
biosorbent
remove
(II),
aiding
environmental
cleanup
initiatives.
