Synthesis of Iron Oxide/Activated Hydrochar Composite from Residual Brewery Biomass for Remediation of Water Contaminated with Chlorophenol
Abstract
The
study
aimed
to
develop
an
iron
oxide/activated
hydrochar
composite
(FeOHC)
remove
2-chlorophenol
from
water
through
adsorption
or
oxidation
processes.
Two
preparation
methods
were
used:
(1)
incipient
wetness
impregnation
of
biomass
via
hydrothermal
carbonization,
and
(2)
coprecipitation
oxide
on
the
surface
(FeOHC-C).
Both
materials
activated
at
400°C
under
nitrogen.
Characterization
revealed
mesoporous
structures
with
areas
44–66
m²
g⁻¹
magnetite
presence.
Adsorption
experiments
showed
a
capacity
7.71
5.14
mg
within
24
hours,
Elovich
model
best
describing
kinetics.
Equilibrium
ranged
24.63
18.70
g⁻¹,
FeOHC
showing
highest
capacity,
fitting
Sips
isotherm
model.
Thermodynamic
analysis
suggested
physical
process.
Fenton
reactions
demonstrated
faster
removal
pH
3.0,
while
reusability
tests
confirmed
could
act
as
both
adsorbents
self-regenerative
catalysts
for
remediation.
Research Square (Research Square), Год журнала: 2024, Номер unknown
Опубликована: Ноя. 14, 2024
Язык: Английский