Separation Science and Technology,
Journal Year:
2024,
Volume and Issue:
unknown, P. 1 - 20
Published: Oct. 9, 2024
Three
grades
of
allyl-mannitol
cross-linker-based
hydrogel
(AMCLHs
hydrogel)
have
been
synthesized
with
the
help
acrylic
acid
and
acrylamide
monomers
using
a
free
radical
co-polymerization
technique.
The
three
prepared
AMCLHs
referred
to
as
AMCLHs-1,
AMCLHs-2,
AMCLHs-3,
respectively.
hydrogels
characterized
by
several
analytical
techniques
viz.
Fourier
transform
infrared
(FTIR)
spectroscopy,
thermogravimetric
(TG)
analysis,
point
zero
charge
(ΔpHPZC),
scanning
electron
microscope
(SEM)
utilized
for
elimination
Cu2+
Co2+
ions
from
wastewater.
properties
hydrogels,
i.e.
swelling
water
retention
ratio
studied
in
distilled
under
optimized
conditions.
maximum
best
grade
(AMCLHs-1)
has
found
be
400.5
g/g
75.09%
during
24
h.
These
findings
indicate
AMCLHs-1
remarkable
capacity.
metal
ion
removal
efficiency
aqueous
solutions
96.6%
94.2%
optimum
experimental
data
fitted
well
Langmuir
Freundlich
adsorption
models,
revealing
capacities
431.03
mg/g
414.93
ions,
In
addition,
rate
onto
follows
both
Pseudo
first
second-order
kinetic
models.
negative
ΔG
values
that
process
occurs
spontaneously,
while
positive
ΔH
suggest
is
exothermic
nature.
reusable
exhibits
high
desorption
87.63%
85.21%
even
after
fourth
cycle.
Overall,
cost-effective
adsorbent
possesses
significant
potential
heavy
solutions.
Processes,
Journal Year:
2024,
Volume and Issue:
12(9), P. 1914 - 1914
Published: Sept. 6, 2024
In
recent
decades,
the
rising
wastewater
output
from
industrial
pollution
has
inflicted
severe
harm
on
both
surface
and
groundwater,
leading
to
substantial
environmental
damage.
The
elimination
of
harmful,
toxic
materials
remediation
are
pressing
global
concerns
pose
a
formidable
challenge
for
scientists
worldwide.
Heterogeneous
photocatalysis
been
recognized
as
promising,
effective,
energy-free,
eco-friendly
process
capable
completely
degrading
various
organic
pollutants.
Finding
material
that
simultaneously
satisfies
thermodynamic
kinetic
criteria,
coupled
with
good
thermal-
photo-stability,
is
challenging
task
necessitating
modification
existing
or
synthesis
new
ones
meet
required
standards.
This
present
study
comprehensibly
elaborates
different
approaches
photocatalytic
systems,
inorganic,
in
order
obtain
more
efficient
feasible
catalysts
practical
applications.
addition,
current
status
application
photocatalysts
dye
treatment
summarized,
projecting
future
direction
management
by
processes.
