Arabian Journal of Chemistry,
Год журнала:
2023,
Номер
16(10), С. 105158 - 105158
Опубликована: Июль 11, 2023
The
urgent
need
for
efficient
decontamination
of
organic
dyes
from
polluted
waters
necessitates
the
search
a
low-cost
and
suitable
adsorbent.
large
amount
lemon
peel
residue
in
actual
production
can
be
an
ideal
raw
material
preparation
adsorbents.
Herein,
novel
magnetic
nanocomposite
derived
(Citrus
limon
L.)
(Fe3O4/Lp-biochar)
was
successfully
synthesized
by
one-step
hydrothermal
method
used
adsorptive
capture
methylene
blue
(MB)
aqueous
solution.
prepared
Fe3O4/Lp-biochar
are
spherical
with
particle
size
8.3
nm
have
saturation
magnetization
intensity
52.9
emu/g
specific
surface
area
64.30
m2/g.
It
found
that
maximum
MB
adsorption
capacity
26.36
mg/g
achieved
when
0.10
mg/mL,
system's
pH
value
10,
reaction
temperature
25
°C,
time
60
min.
Adsorption
kinetics
on
followed
pseudo-second-order
kinetic
model
whilst
Freundlich
isotherm
could
well
simulate
behavior
biochar.
mechanism
predominantly
include
electrostatic
attraction
mesoporous
interaction.
Furthermore,
exhibited
remarkable
retention
94.7%
initial
efficiency
even
after
10th
cycle
repeated
use.
concluded
peel-derived
biochar
promising
alternative
to
conventional
adsorbents
wastewater
treatment.
ACS ES&T Engineering,
Год журнала:
2024,
Номер
4(8), С. 2054 - 2067
Опубликована: Июль 16, 2024
Herein,
a
ball-milled
composite
mineral
derived
from
shell
powder
and
phosphate
rock
(BSPR)
was
innovatively
coupled
with
smooth
vetch
(SV)
planting
to
remediate
Cd-polluted
soil.
The
results
showed
that
BSPR
SV
could
reduce
the
bioavailability
of
Cd
in
soil
by
68.1%,
which
2.2
3.4
times
those
(31.1%)
(20.0%)
alone,
respectively.
outstanding
passivation
performance
confirmed
be
due
synergistic
effect
SV.
Specifically,
employment
not
only
increased
biomass
but
also
promoted
its
decomposition,
directly
led
conversion
into
more
humic
acid
(HA).
Under
action
HA,
calcium
phosphorus
were
released
combined
form
stable
compounds
(e.g.,
Cd3(PO4)2,
Cd5(PO4)3Cl,
CdnCa5–n(PO4)3OH).
Amazingly,
excellent
synergetic
on
improvement,
content
pepper
fruit
decreased
38.2%
(6.3
SV),
fresh
weight
Ca
enhanced
28.2%
43.4%
(6.7
22.8
SV,
respectively).
Overall,
this
study
provided
novel
strategy,
i.e.,
green
manure
mineral,
for
simultaneous
remediation
Cd-contaminated
farmland
enhancement
pepper's
yield
quality,
thus
achieving
"killing
three
birds
one
stone".
Heliyon,
Год журнала:
2024,
Номер
10(1), С. e24006 - e24006
Опубликована: Янв. 1, 2024
Population
growth
in
recent
years
has
led
to
increased
wastewater
production
and
pollution
of
water
resources.
This
situation
also
heavily
affects
Bolivia,
so
treatment
methods
materials
suitable
for
Bolivian
society
should
be
explored.
study
investigated
the
natural
Zeolite
(BZ)
its
NaCl-modified
structure
(NaBZ)
as
adsorbents
cadmium
removal
from
water.
The
BZ
modified
form
NaBZ
were
by
different
physicochemical
characterization
techniques.
Furthermore,
XPS
FT-IR
techniques
used
investigate
adsorption
mechanisms.
on
was
analyzed
using
various
mathematical
models,
Langmuir
model
provided
a
better
description
experimental
data
with
capacities
20.2
25.6
mg/g
NaBZ,
respectively.
followed
pseudo-second
order
kinetics.
effect
parameters,
such
initial
concentration
pH
studied.
In
addition,
results
regeneration
test
indicated
that
both
can
regenerated
hydrochloric
acid
(HCl).
Finally,
experiment
real
sample
(brine
Salar
de
Uyuni
salt
flat)
containing
mixture
heavy
metals
carried
out.
obtained
this
demonstrate
effectiveness
wastewater.
