Materials,
Journal Year:
2024,
Volume and Issue:
17(11), P. 2763 - 2763
Published: June 5, 2024
Compound
contamination
of
soil
with
heavy
metals
copper
(Cu)
and
lead
(Pb)
triggered
by
mining
development
has
become
a
serious
problem.
To
solve
this
problem,
in
paper,
corncob
kernel,
which
is
widely
available
inexpensive,
was
used
as
the
raw
material
biochar
modified
loading
CaAl-layered
double
hydroxides
to
synthesize
biochar-loaded
hydroxide
composites
(CaAl-LDH/BC).
After
remediation
experiments,
either
BC
or
CaAl-LDH/BC
can
increase
pH,
phosphorus
content
potassium
soil.
Compared
BC,
significantly
reduced
Cu
Pb
active
state
(diethylenetriaminepentaacetic
acid
extractable
state)
soil,
passivation
rate
2%
dosage
reached
47.85%
37.9%,
respectively.
enhance
relative
abundance
beneficial
microorganisms
such
Actinobacteriota,
Gemmatimonadota,
Luteimonas
help
tolerance
reduce
enrichment
ability
plants
metals.
In
addition,
it
demonstrated
pea
seedling
(Pisum
sativum
L.)
growing
experiments
that
increased
plant
fresh
weight,
root
length,
height,
catalase
(CAT)
activity,
protein
content,
promoted
growth
plant.
contents
seedlings,
seedlings
were
from
31.97
mg/kg
74.40
2.92
6.67
mg/kg,
respectively,
after
CaAl-LDH/BC,
reduction
90.84%
91.03%,
conclusion,
compared
improved
fertility
thus
environment,
also
more
effectively
mobility
plants.
Journal of Materials Chemistry A,
Journal Year:
2024,
Volume and Issue:
12(33), P. 22262 - 22275
Published: Jan. 1, 2024
The
PAPEI
adsorbent
achieved
a
high
adsorption
capacity
of
1832
mg
g
−1
for
Hg(
ii
)
accompanied
with
excellent
selectivity,
as
evidenced
by
distribution
coefficient
(
K
d
3.2
×
10
4
mL
.
