Fuel,
Год журнала:
2022,
Номер
330, С. 125428 - 125428
Опубликована: Авг. 10, 2022
This
paper
presents,
for
the
first
time,
a
comprehensive
comparative
analysis
of
potential
using
biochars
from
three
distinctly
different
UK-sourced
biomass
feedstocks,
produced
via
thermal
processing
techniques,
to
adsorb
methylene
blue
dye.
Biochars
were
made
rapeseed,
whitewood,
and
seaweed
(Laminaria
Digitata),
hydrothermal
conversion,
pyrolysis,
torrefaction.
Adsorption
kinetic
models
developed
each
biochar
at
temperatures,
pH
initial
dye
concentrations.
Relatively
high
levels
adsorption
capacity
achieved
by
seaweed-based
(∼150
mg/g),
with
reasonable
rapeseed-based
(∼60
whilst
found
be
relatively
low
whitewood-based
(<30
mg/g).
A
Pseudo-second-order
model
provided
best
fit
experimental
results.
The
Langmuir
isotherm
showed
better
biochars,
while
Freundlich
was
biochars.
isotherms
maximum
(Qo)
biochars;
∼175
mg/g
seaweed-Torrefaction
∼
117
seaweed-Pyrolysis.
Negative
Gibbs
free
energy
(ΔG°)
values
observed
<
seaweed-Pyrolysis
0,
which
indicates
that
removal
could
thermodynamically
favourable
process
due
spontaneous
nature
adsorption.
Our
investigation
has
shown
wastewater
application
as
part
holistic
whole
life
cycle
valorisation
pathway.
However,
it
is
not
suitable
all
types
biomasses
emphasises
need
tailoring
unique
pathways
biomasses.
Water,
Год журнала:
2020,
Номер
12(12), С. 3561 - 3561
Опубликована: Дек. 18, 2020
Dyes
(colorants)
are
used
in
many
industrial
applications,
and
effluents
of
several
industries
contain
toxic
dyes.
exhibit
toxicity
to
humans,
aquatic
organisms,
the
environment.
Therefore,
dyes
containing
wastewater
must
be
properly
treated
before
discharging
surrounding
water
bodies.
Among
treatment
technologies,
adsorption
is
most
preferred
technique
sequester
from
Many
studies
have
reported
removal
using
biochar
produced
different
biomass,
e.g.,
algae
plant
forest,
domestic
residues,
animal
waste,
sewage
sludge,
etc.
The
aim
this
review
provide
an
overview
application
as
eco-friendly
economical
adsorbent
remove
colorants
(dyes)
aqueous
This
highlights
routes
production,
such
hydrothermal
carbonization,
pyrolysis,
liquefaction.
Biochar
possesses
numerous
advantages,
being
eco-friendly,
low-cost,
easy
use;
various
precursors
available
abundance
converted
into
biochar,
it
also
has
recyclability
potential
higher
capacity
than
other
conventional
adsorbents.
From
literature
review,
clear
that
a
vital
candidate
for
with
above
80%.
ACS Omega,
Год журнала:
2021,
Номер
6(36), С. 23528 - 23541
Опубликована: Сен. 3, 2021
Herein,
we
report
a
new
metal–organic
framework
(MOF)-based
composite
beads
adsorbent
made
via
incorporating
UiO-66
MOF,
carboxylated
graphene
oxide
(GOCOOH)
into
sodium
alginate
for
efficient
removal
of
methylene
blue
dye,
and
Cu2+
ions.
The
successful
fabrication
the
synthesized
UiO-66/GOCOOH@SA
was
confirmed
by
means
X-ray
diffraction,
Fourier
transform
infrared,
scanning
electron
microscopy,
zeta
potential,
photoelectron
spectroscopy
analysis,
thermogravimetric
analysis
BET
measurement.
incorporation
both
GOCOOH
SA
greatly
increased
their
adsorption
efficiency
MB
with
maximum
capacities
490.72
343.49
mg/g,
respectively.
process
follows
pseudo-second-order
model
Freundlich
isotherm
model.
A
plausible
mechanism
discussed
in
detail.
Regeneration
tests
clarified
that
efficiencies
toward
remained
higher
than
87%
after
five
cycles.
These
results
reveal
potentiality
as
an
excellent
adsorbent.
Toxics,
Год журнала:
2023,
Номер
11(2), С. 117 - 117
Опубликована: Янв. 25, 2023
The
current
water
crisis
necessitates
the
development
of
new
materials
for
wastewater
treatment.
A
variety
nanomaterials
are
continuously
being
investigated
their
potential
as
adsorbents
environmental
remediation.
Researchers
intend
to
develop
a
low-cost,
simple,
and
sustainable
material
that
can
cater
removal
pollutants.
Biochar
derived
from
biowaste
is
candidate
existing
problem
pollution.
review
focuses
on
various
aspects
biochar,
such
its
sources,
preparation
methods,
mechanism,
applications
treatment,
regeneration.
Compared
with
other
adsorbents,
biochar
considered
an
environmentally
friendly,
sustainable,
cost-effective
substitute
waste
management,
climate
protection,
soil
improvement,
etc.
special
properties
porosity,
surface
area,
charge,
functional
groups
be
easily
modified
by
chemical
resulting
in
improved
adsorption
properties.
Therefore,
view
increasing
pollution
problems
encountered
researchers
treating
pollutants,
great
importance.
This
also
highlights
challenges
prospective
areas
explored
studied
more
detail
future.
