Microbiology Spectrum,
Год журнала:
2024,
Номер
12(4)
Опубликована: Фев. 23, 2024
Plant
cultivation
can
influence
the
immobilization
of
heavy
metals
in
soil.
However,
roles
soil
amendments
and
microorganisms
crop-based
phytoremediation
require
further
exploration.
In
this
study,
we
evaluated
impact
Zea
mays
L.
cultivation,
biochar
application,
arbuscular
mycorrhizal
fungi
(AMF)
inoculation
on
lead
(Pb)
immobilization.
Our
results
indicated
that
addition
resulted
a
significant,
42.00%,
reduction
AMF
colonization.
inoculation,
all
contributed
to
enhanced
Pb
immobilization,
as
evidenced
by
decreased
levels
diethylenetriaminepentaacetic
acid-
CaCl2-extractable
Furthermore,
subjected
plant
with
displayed
reduced
concentrations
bioavailable
Pb.
Biochar
altered
distribution
fractions
soil,
transforming
acid-soluble
form
into
relatively
inert
reducible
oxidizable
forms.
Additionally,
biochar,
AMF,
their
combined
use
promoted
maize
growth
parameters,
including
height,
stem
diameter,
shoot
root
biomass,
phosphorus
uptake,
while
simultaneously
reducing
concentration.
These
findings
suggest
synergistic
effect
phytostabilization.
summary,
despite
adverse
growth,
cultivating
concurrent
emerges
recommended
effective
strategy
for
phytoremediation.IMPORTANCEHeavy
metal
contamination
is
pressing
environmental
issue,
has
emerged
sustainable
approach
mitigating
problem.
This
study
sheds
light
potential
enhance
contaminated
The
demonstrate
during
significantly
improve
offering
promising
practices.
research
contributes
valuable
insights
field
its
address
pollution
agricultural
soils.
RSC Advances,
Год журнала:
2023,
Номер
13(18), С. 12502 - 12508
Опубликована: Янв. 1, 2023
In
order
to
improve
the
adsorption
effect
of
biochar
on
Congo
red
dye,
this
study
used
hexadecyl
trimethyl
ammonium
bromide
(CTAB)
organically
modify
orange
peel
(OBC)
produce
CTAB-modified
(NOBC),
and
before
after
modification
was
analyzed
by
SEM-EDS,
FTIR
BET.
The
performance
NOBC
dye
investigated
mechanism
studied.
results
showed
that
amount
influenced
initial
concentration,
time
solution
pH.
adsorbed
50
mg
L-1
CR
with
an
equilibrium
60
min
290.1
g-1,
while
OBC
210
155.2
above
g-1
at
pH
2
11,
can
be
recycled
three
times.
experimental
data
were
consistent
Langmuir
isothermal
model
Pseudo-second-order
model,
mainly
included
electrostatic
attraction
surface
adsorption.
conclusion,
is
a
promising
material
for
wastewater
Environmental Chemistry Letters,
Год журнала:
2023,
Номер
21(6), С. 3159 - 3244
Опубликована: Авг. 17, 2023
Abstract
Traditional
fertilizers
are
highly
inefficient,
with
a
major
loss
of
nutrients
and
associated
pollution.
Alternatively,
biochar
loaded
phosphorous
is
sustainable
fertilizer
that
improves
soil
structure,
stores
carbon
in
soils,
provides
plant
the
long
run,
yet
most
biochars
not
optimal
because
mechanisms
ruling
properties
poorly
known.
This
issue
can
be
solved
by
recent
developments
machine
learning
computational
chemistry.
Here
we
review
phosphorus-loaded
emphasis
on
chemistry,
learning,
organic
acids,
drawbacks
classical
fertilizers,
production,
phosphorus
loading,
release.
Modeling
techniques
allow
for
deciphering
influence
individual
variables
biochar,
employing
various
supervised
models
tailored
to
different
types.
Computational
chemistry
knowledge
factors
control
binding,
e.g.,
type
compound,
constituents,
mineral
surfaces,
binding
motifs,
water,
solution
pH,
redox
potential.
Phosphorus
release
from
controlled
coexisting
anions,
adsorbent
dosage,
initial
concentration,
temperature.
Pyrolysis
temperatures
below
600
°C
enhance
functional
group
retention,
while
450
increase
plant-available
phosphorus.
Lower
pH
values
promote
release,
higher
hinder
it.
Physical
modifications,
such
as
increasing
surface
area
pore
volume,
maximize
adsorption
capacity
biochar.
Furthermore,
acid
affects
low
molecular
weight
acids
being
advantageous
utilization.
Lastly,
biochar-based
2–4
times
slower
than
conventional
fertilizers.
ACS Omega,
Год журнала:
2023,
Номер
8(43), С. 40128 - 40139
Опубликована: Окт. 18, 2023
Biochar
derived
from
plant
biomass
has
great
potential
for
the
decontamination
of
aqueous
media.
It
is
need
hour
to
test
biochar
economical,
easily
available,
and
novel
materials.
In
this
regard,
present
study
provides
insight
into
sorption
two
heavy
metals,
i.e.,
cadmium
(Cd)
nickel
(Ni),
using
native
Arachis
hypogaea
its
prepared
through
pyrolysis.
The
effect
different
factors,
including
interaction
time,
initial
concentration
adsorbate,
temperature,
as
well
sorbent
dosage,
was
studied
on
Cd
Ni
a
batch
experiment.
Characterization
biowaste
surface
morphology
functional
group
identification
executed
Fourier
transform
infrared
(FTIR)
spectroscopy
scanning
electron
microscopy
(SEM).
Results
revealed
presence
groups
such
-OH
adsorbent,
which
plays
an
important
role
in
metal
attachment.
SEM
reveals
irregular
makes
it
easy
Thermogravimetric
analysis
shows
stability
A.
up
380
°C
compared
with
adsorbent.
adsorption
efficacy
found
be
higher
than
that
both
metals.
best
(94.5%)
observed
at
40
ppm,
adsorbent
dosage
2
g,
contact
time
100
min,
temperature
50
°C.
While
optimum
conditions
(97.2%
adsorption)
were
reported
2.5
60
offers
better
ions
raw
samples
low
concentrations.
Isothermal
studies
show
mechanism
physical
adsorption,
negative
value
Gibb's
free
energy
confirms
spontaneous
nature
reaction.
An
increase
entropy
favors
process.
decent
alternative
eliminate
solution
instead
costly
adsorbents.
Desalination and Water Treatment,
Год журнала:
2024,
Номер
317, С. 100201 - 100201
Опубликована: Янв. 1, 2024
The
persistent
nature
of
the
herbicide
atrazine
in
environment
and
its
possible
negative
impacts
on
ecosystems
human
health
has
sparked
growing
concerns.
diverse
effects
are
explored
this
review,
which
also
discusses
environmental
fate,
toxicity
mechanisms,
toxicological
aquatic
ecosystems,
soil,
plants,
humans,
animals.
This
review
several
physicochemical
techniques
for
treatment,
including
adsorption
activated
carbon
biochar,
as
well
chemical
like
Fenton,
ozone
oxidation,
sulfate
radical
photocatalytic
methods.
Biodegradation
is
then
analyzed,
together
with
atrazine-degrading
microorganisms,
such
bacteria,
fungi,
other
microbes,
genetically
modified
microorganisms.
Knowledge
molecular
biology
microbial
metabolic
pathways
bacteria
provides
a
deeper
comprehension
degradation
process.
paper
looks
at
key
factors
that
affect
emphasises
circular
economy
strategy
life
cycle
analysis
effective
options
long-term
management.
concludes
by
outlining
future
prospects
field,
aiming
to
address
challenges
posed
pave
way
environmentally
friendly
alternatives
remediation
techniques.
Biomass and Bioenergy,
Год журнала:
2024,
Номер
184, С. 107180 - 107180
Опубликована: Март 23, 2024
Porous
carbons
derived
from
lignocellulosic
biomass
and
their
use
in
electrochemical
applications
are
attracting
a
growing
level
of
interest
due
to
the
sustainable
nature
materials
its
favourable
properties.
This
study
investigates
influence
feedstocks
three
activation
methods
(CO2,
steam,
KOH)
on
properties
biochars.
The
results
showed
that
activated
biochars
straw
had
higher
specific
capacitance
than
wood-derived
biochars,
despite
lower
electrical
conductivity
porosity.
Furthermore,
chemical
using
KOH
was
found
increase
compared
physical
steam
CO2,
although
sometimes
at
expense
conductivity.
highlights
importance
carefully
selecting
optimise
biochar
for
potential
as
supercapacitor
material.
Arabian Journal of Chemistry,
Год журнала:
2024,
Номер
17(4), С. 105669 - 105669
Опубликована: Фев. 8, 2024
The
adsorption
characteristics
of
Cd2+
and
Pb2+
with
biochars
have
been
widely
reported.
However,
the
desorption
characteristics,
chemical
speciation,
stability
adsorbed
on
remain
unclear.
In
this
work,
rice
straw
were
obtained
at
different
pyrolysis
temperatures
(RSBC300,
RSBC500,
RSBC700).
speciation
Cd-
Pb-loaded
investigated
through
Tessier
sequential
extraction
agents,
possible
quantitative
mechanisms
metal-laden
revealed.
Pyrolysis
temperature
influenced
properties
obviously,
including
surface
morphology,
element
mineral
composition,
carbon
structure
defects.
RSBC700
RSBC500
exhibited
highest
capacity
toward
Pb2+,
respectively.
majority
metal
ions
are
distributed
in
carbonate
fraction
exchangeable
fraction.
Cd
Pb
all
metal-loaded
showed
a
high
risk
assessment
code
values
larger
than
50
%.
HCl
EDTA-2Na
could
desorb
most
from
Cd-laden
biochars,
high-temperature
Pb-laden
biochars.
Precipitation
minerals
(Qpre,
52.77
%–82.37
%)
interaction
π-electrons
(Qπ,
16.57
%–30.26
main
for
whereas
precipitation
18.82
%–58.71
ion
exchange
(Qexc,
19.18
%–48.81
removal
Pb2+.
Therefore,
not
stable
easily
released
to
environment,
which
potential
environmental
risk.
