Scientific Reports,
Journal Year:
2024,
Volume and Issue:
14(1)
Published: Aug. 22, 2024
Abstract
Pesticide
contamination
and
soil
degradation
present
significant
challenges
in
agricultural
ecosystems,
driving
extensive
exploration
of
biochar
(BC)
nano-biochar
(NBC)
as
potential
solutions.
This
study
examines
their
effects
on
properties,
microbial
communities,
the
fate
two
key
pesticides:
hydrophilic
methomyl
(MET)
hydrophobic
lambda-cyhalothrin
(LCT),
at
different
concentrations
(1%,
3%,
5%
w
−1
)
soil.
Through
a
carefully
designed
seven-week
black
bean
pot
experiment,
results
indicated
that
addition
BC/NBC
significantly
influenced
dynamics.
Soil
pH
moisture
content
(MC)
notably
increased,
accompanied
by
general
rise
organic
carbon
(SOC)
content.
However,
BC5/NBC5
treatments,
SOC
declined
after
2nd
or
3rd
week.
Microbial
populations,
including
total
plate
count
(TPC),
phosphate-solubilizing
bacteria
(PSB),
nitrogen-fixing
(NFB),
showed
dynamic
responses
to
applications.
BC1/NBC1
BC3/NBC3
applications
led
increase
whereas
treatments
experienced
decline
initial
surge.
Furthermore,
removal
efficiency
both
MET
LCT
increased
with
higher
concentrations,
NBC
demonstrating
greater
efficacy
than
BC.
Degradation
kinetics,
modeled
first-order
equation,
revealed
degraded
faster
LCT.
These
findings
underscore
profound
impact
pesticide
dynamics
highlighting
transform
sustainable
practices.
Lubricants,
Journal Year:
2025,
Volume and Issue:
13(3), P. 102 - 102
Published: Feb. 25, 2025
The
development
of
green
lubrication
requires
nano-lubricants
to
possess
more
environmentally
friendly
fabrication
modes
and
materials
with
superior
tribological
properties.
This
study
investigates
the
properties
nano-biochar
in
PAO6
base
oil
combination
different
additives.
effect
adsorption
on
friction
reduction
anti-wear
performance
is
demonstrated
by
replacing
sub-materials
four-ball
test.
Based
comparison
wear
region
characterization,
incorporation
improves
detergent
dispersant
oils
a
coefficient
(COF)
16.7%
19.0%,
respectively,
produces
synergistic
performance.
When
compounded
agents
reducer,
there
performance,
COF
decreases
9.4%
4.5%
compared
reducer
oils,
respectively.
A
method
analyze
mechanism
nano-additives
complex
system
proposed,
which
reveals
depth
interaction
law
between
NBC
additives
process.
ChemEngineering,
Journal Year:
2025,
Volume and Issue:
9(2), P. 30 - 30
Published: March 10, 2025
This
study
aimed
at
preparing
three
types
of
biochar
derived
from
rice
husk
via
pyrolysis,
including
unactivated
biochar,
chemically
activated
after
with
H3PO4,
and
impregnated
γ-Fe2O3
nanoparticles.
These
materials
were
subsequently
characterized
using
Scanning
Electron
Microscopy
(SEM),
Fourier
Transform
Infrared
Spectroscopy
(FTIR),
Brunauer–Emmett–Teller
(BET)
analysis,
which
revealed
favorable
textural
properties,
such
as
an
increased
surface
area
porosity,
well
the
presence
functional
groups
that
facilitate
adsorption
methylene
blue
malachite
green
in
aqueous
solutions.
Several
factors
affect
capacity,
type
material,
pH
effect,
adsorbent
dosage,
evaluated
optimized.
The
behavior
was
analyzed
isotherm
kinetic
models
to
better
understand
mechanisms
involved.
Under
optimal
conditions,
biochar@γ-Fe2O3
NPs
emerged
most
effective
material
due
its
high
area,
functionalized
surface,
magnetic
allowing
easy
water
recovery
without
need
for
complex
instrumentation.
Among
evaluated,
pseudo-second-order
model
exhibited
highest
linear
regression
coefficient
(R2
=
0.99),
supporting
a
chemisorption
process
driven
by
strong
interactions
stable
chemical
bond
formation
between
adsorbate
adsorbent,
while
equilibrium
data
fit
Sips
model,
indicating
combination
monolayer
multilayer
mechanisms.
achieved
removal
efficiencies
97%
95%
green,
demonstrating
performance
reusability
over
four
cycles.
Moreover,
possible
mechanism
MB
on
proposed
explain
interaction
dye
surface.
Thus,
this
work
demonstrates
is
sustainable
cost-effective
wastewater
treatment,
integrating
circular
economy
principles
transforming
into
high-value
material.
incorporation
nanoparticles
enhances
enabling
recovery,
providing
eco-friendly
scalable
solution
removal.
Discover Soil.,
Journal Year:
2025,
Volume and Issue:
2(1)
Published: April 22, 2025
Abstract
Heavy
metals
are
inorganic
contaminants
derived
from
natural
and
anthropogenic
sources
that
cause
damage
to
ecosystems.
Various
environmental
technologies,
both
chemical
biological,
have
been
used
remediate
soils
impacted
by
these
pollutants.
Currently
the
use
of
nanotechnology
through
carbon
nanomaterials
has
attracted
attention
for
its
ability
immobilize
heavy
in
soil.
The
objective
this
review
was
explore
potential
carbon-based
as
an
innovative
technology
remediation
contaminated
with
metals.
In
review,
we
major
scientific
databases
our
source
literature
selected
recent
articles
on
metals,
soil
remediation,
nanomaterials,
their
applications
nanoremediation.
We
found
toxic
microorganisms
plants,
can
metabolic
processes,
leading
cell
death.
These
easily
enter
food
chain
produced
agricultural
fields,
posing
a
risk
human
health.
reduce
translocation
remediators
contamination.
Furthermore,
based
available
data,
there
few
reports
metal
soils.
While
every
advantages
disadvantages,
development
offers
novel
alternative
control
measure
great
future
protection.
