Frontiers in Nanotechnology,
Journal Year:
2024,
Volume and Issue:
6
Published: Feb. 19, 2024
Wastewater
remediation
is
of
paramount
importance
for
the
water-stressed
modern
civilization
from
perspective
sustainable
development
and
management
limited
freshwater
resources.
Contaminants
such
as
heavy
metal
metalloid
ions,
toxic
dyes,
pathogenic
microbes
present
in
aquatic
ecosystem
have
adverse
effects
not
only
on
environment
but
also
human
health.
Traditional
wastewater
processes
are
costly,
energy-consuming,
less
efficiency
removing
pollutants
wastewater.
Multi-phasic
nanomaterials
or
nanocomposites
enormous
potential
contaminants
water
bodies.
These
materials
an
tunable
surface
area
interacting
with
target
toxicants
extremely
stable
system,
they
readily
agglomerate.
Many
research
groups
exploited
biosorption,
bioleaching,
bioprecipitation
capacities
fungal
hyphae
remediation.
Recently,
researchers
attempted
to
explore
synergistic
effect
bionanocomposite
This
has
already
shown
promise
a
superior
material
treatment
can
easily
be
separated
polluted
reuse
over
several
cycles.
The
bionanocomposite-mediated
decontamination
lead
total
paradigm
shift
strategies.
Biochar,
Journal Year:
2022,
Volume and Issue:
4(1)
Published: March 15, 2022
Abstract
Biochar
shows
significant
potential
to
serve
as
a
globally
applicable
material
remediate
water
and
soil
owing
the
extensive
availability
of
feedstocks
conducive
physio-chemical
surface
characteristics.
This
review
aims
highlight
biochar
production
technologies,
characteristics
biochar,
latest
advancements
in
immobilizing
eliminating
heavy
metal
ions
organic
pollutants
water.
Pyrolysis
temperature,
heat
transfer
rate,
residence
time,
type
feedstock
are
critical
influential
parameters.
Biochar’s
efficacy
managing
contaminants
relies
on
pore
size
distribution,
groups,
ion-exchange
capacity.
The
molecular
composition
physical
architecture
may
be
crucial
when
practically
applied
soil.
In
general,
produced
at
relatively
high
pyrolysis
temperatures
can
effectively
manage
via
increasing
area,
hydrophobicity
microporosity.
generated
lower
is
deemed
more
suitable
for
removing
polar
inorganic
through
oxygen-containing
functional
precipitation
electrostatic
attraction.
also
presents
existing
obstacles
future
research
direction
related
biochar-based
materials
effluents
Graphical
Biochar,
Journal Year:
2023,
Volume and Issue:
5(1)
Published: June 1, 2023
Abstract
Herein,
a
biochar-based
composite
(Ti
3
C
2
T
x
@biochar-PDA/PEI)
was
constructed
by
decorating
Ti
and
polydopamine
on
coconut
shell
biochar
via
electrostatic
self-assembly
method.
Different
characterization
techniques
were
applied
to
explore
the
structure,
morphology
composition
of
sorbents.
It
found
that
higher
porosity
diverse
functional
groups
conducive
for
@biochar-PDA/PEI
capture
radionuclides,
water
environmental
conditions
made
great
contribution
adsorption
process.
The
process
removing
U(VI)/Cs(I)
well
complied
with
Langmuir
isotherm
Pseudo-second-order
equations,
which
indicated
single
layer
chemical
occurred
solid
liquid
interface.
Meanwhile,
this
produced
exhibited
superior
removal
performance
under
complex
co-existing
ion
environment,
maximum
amounts
U(VI)
Cs(I)
reached
up
239.7
40.3
mg
g
−1
.
Impressively,
adsorbent
still
good
after
three
cycles
regeneration.
spectral
analysis
DFT
calculation
demonstrated
might
be
process,
while
should
exchange
or
attraction.
This
study
potential
application
as
an
effective
remediation
strategy
radioactive
wastewater
cleanup.
Graphical
Biomass Conversion and Biorefinery,
Journal Year:
2023,
Volume and Issue:
14(19), P. 23293 - 23318
Published: July 4, 2023
Abstract
The
preparation
of
biochar
(BC)
as
a
useful
substance
generated
from
biomass
valorization
via
pyrolysis
has
attracted
much
attention
in
recent
years.
Moreover,
widespread
worries
about
water
pollution
and
the
issues
brought
on
by
producing
releasing
massive
volumes
industrial
effluents
have
sparked
research
initiatives
to
examine
practical
affordable
solutions
these
problems.
Dyes,
heavy
metals,
pharmaceutical
compounds
are
main
hazardous
pollutants
wastewater.
As
result,
(BC)/biochar
(BC)-based
nanocomposites
been
presented
potential
alternative
handle
wastewater
with
both
adsorption
photocatalytic
degradation
processes.
Such
nanocomposite
materials
benefit
synergistic
effect
photocatalysis
attain
improved
removal
Therefore,
this
review
aims
describe
different
methods
for
biochar-based
nanocomposites.
Furthermore,
differences
between
processes
discussed.
BC-based
emerged
promising
adsorbents
photocatalysts
treatment
applications.
To
maximize
efficiency
processes,
an
overview
parameters
affecting
is
reviewed,
where
dose,
initial
pollutant
concentration,
pH,
temperature,
time,
presence
anions,
recycling
discovered
significant
impact
their
performance.
Finally,
future
recommendations
directions
provided
help
shape
applications
This
offers
comprehensive
evaluation
use
new
environmental
material
capable
removing
Graphical
Biochar,
Journal Year:
2024,
Volume and Issue:
6(1)
Published: March 1, 2024
Abstract
Soil
contamination
by
uranium
presents
a
burgeoning
global
environmental
concern,
exerting
detrimental
effects
on
both
agricultural
production
and
soil
health.
Biochar,
carbonaceous
material
derived
from
biomass
pyrolysis,
exhibits
considerable
potential
for
remediating
uranium-contaminated
soils.
However,
comprehensive
review
of
the
biochar
fate
accumulation
in
soil–plant
systems
remains
conspicuously
absent.
In
this
paper,
sources
are
reviewed,
impact
immobilization
detoxification
is
analyzed.
We
reviewed
status
soils
globally
found
that
mining
activities
currently
main
sources.
Further
meta-analysis
revealed
addition
significantly
reduced
bioavailability
shoot
accumulation,
their
effect
value
58.9%
(40.8–76.8%)
39.7%
(15.7–63.8%),
respectively.
Additionally,
enhances
microenvironment,
providing
favourable
conditions
promoting
plant
growth
reducing
mobility.
focused
mechanisms
governing
interaction
between
uranium,
emphasising
roles
played
surface
complexation,
reduction,
ion
exchange,
physical
adsorption.
The
modification
intensifying
these
can
promote
immobilisation
Finally,
alleviates
oxidative
stress
reduces
tissues,
thereby
mitigating
adverse
development.
Overall,
our
highlights
capacity
to
remediate
through
diverse
mechanisms,
valuable
insights
sustainable
remediation.
Highlights
Biochar
mobility
variety
including
limits
its
plants.
Modified
has
been
shown
enhance
effectiveness
immobilising
uranium.
application
not
only
promotes
remediation
but
also
improves
quality.
Graphical
Journal of Materials Research and Technology,
Journal Year:
2022,
Volume and Issue:
22, P. 169 - 180
Published: Nov. 24, 2022
Hydroxyapatite
nanoparticles
(HAp
NPs)
were
synthesized
with
Muntingia
calabura
leaf
extract
as
solvent
and
eggshell
waste
a
calcium
source.
The
irregular
rod-like,
visualized
by
FESEM,
while
EDX
XPS
studies
confirmed
the
formation
of
hydroxyapatite.
HAp
NPs
polycrystalline
highly
thermostable
per
XRD
TGA
respectively.
FTIR
stable
coating
plant
phytochemicals
onto
NPs.
Congo
red
adsorption
using
nanoadsorbent
was
optimized
central
composite
design,
wherein
89.96%
33.18
mg/L
dye
adsorbed
in
137
min
at
180
RPM.
process
line
pseudo-second-order
model
Freundlich
isotherm
indicated
chemical
adsorption.
feasible,
exothermic,
spontaneous
thermodynamic
studies.
capacity
stood
maximum
217
mg/g,
indicating
its
superiority
among
other
adsorbents
reported
earlier.
It
is
evident
from
convincing
results
that
present
investigation
may
have
major
role
developing
novel
for
removal
out
wastewater
streams.