Polymer Bulletin,
Год журнала:
2024,
Номер
81(7), С. 6603 - 6640
Опубликована: Фев. 15, 2024
Abstract
The
increase
in
the
world
population
and
decrease
clean
water
resources
people's
interest
purification
technologies.
Many
industries,
such
as
textile
industry,
leather
cosmetics
food
color
their
products
with
substances
dyes
pigments.
In
this
study,
a
cheap,
useful,
innovative,
environmentally
friendly,
sustainable
adsorbent
was
developed
for
removal
of
Methylene
Blue
(MB),
one
that
is
harmful
to
environment.
fruit
tree
cultivation,
addition
product,
very
high
amounts
by-products/waste
(branches,
bark,
leaves,
seeds,
shells,
etc.)
are
produced.
direction,
walnut
olive
wastes
were
immobilized
chitosan,
made
magnetic
(m-WCH
m-OCH),
adsorption
MB
on
adsorbents
examined
batch
system.
Characterization
synthesized
biocomposite
performed
by
FT-IR,
SEM,
EDX
XRD
analyzes.
It
has
been
thoroughly
described
how
pH
solution
dye
compares
PZC
surface.
values
m-WCH
m-OCH
5.2
5.5
respectively.
biocomposites
depends
environment
(3–8),
amount
(2–10
gL
−1
),
contact
time
(5–360
min),
temperature
(25–55
°C)
initial
concentration
(10–250
ppm)
function.
obtained
data
evaluated
kinetic
isotherm
models.
Using
equilibrium
from
studies
using
adsorbents,
suitability
Langmuir,
Freundlich,
Stachard,
Dubinin–Radushkevich
Temkin
models
examined.
empirical
showed
agreement
Langmuir
model.
maximum
capacity
estimated
be
85.47
mg
g
53.48
,
result
higher
selectivity
m-OCH.
Among
applied,
pseudo-second-order
model
identified
highest
regression
coefficients.
light
these
results,
it
determined
there
new
promising
natural
origin,
capacity,
lower
cost,
alternatives
commercially
used
aqueous
media.
Graphical
abstract
International Journal of Phytoremediation,
Год журнала:
2024,
Номер
26(9), С. 1500 - 1517
Опубликована: Март 15, 2024
Due
to
developing
technology
and
increasing
population,
human
needs
have
increased,
textile
activities
gained
momentum.
Many
synthetic
dyestuffs
are
used
meet
the
in
this
field.
In
study,
a
cheap,
useful,
innovative,
environmentally
friendly
sustainable
adsorbent
was
developed
for
removal
of
Methylene
Blue(MB),
which
is
one
dyes
that
harmful
environment.
cultivation
fruit
trees,
addition
product,
very
high
amounts
by-products/waste
(garbage,
branches,
bark,
leaves,
etc.)
produced.
direction,
fig
tree
wastes
were
immobilized
with
chitosan,
made
magnetic,
MB
adsorption
on
examined
batch
system.
Glutaraldehyde
as
crosslinker.
Characterization
synthesized
glutaraldehyde
cross-linked
chitosan-coated
magnetic
vegetable
waste
composite
beads
(g-CMBW)
carried
out
by
SEM,
EDX,
FTIR
XRD.
effects
temperature
(25–55
°C),
pH
(3.0–8.0),
initial
concentration
(10–250mg/L),
contact
time
(5–360min)
amount
(2–10
g/L)
g-CMBW
examined.
The
optimum
conditions
obtained
determined
6.0,
25
°C,
6
g/L,
120
min.
maximum
capacity
using
calculated
103.1
mg/g
according
Langmuir
isotherm
model.
studies
showed
decreased
temperature,
showing
system
exothermic.
light
these
results,
it
there
new
promising
adsorbents
natural
origin,
higher
capacity,
lower
cost,
alternatives
commercially
from
aqueous
media.
Journal of the Turkish Chemical Society Section A Chemistry,
Год журнала:
2024,
Номер
11(1), С. 341 - 364
Опубликована: Янв. 16, 2024
Chitosan
is
a
type
of
biopolymer
that
can
be
derived
from
various
natural
sources,
including
animals
and
marine
organisms.
When
determining
its
quality,
molecular
weight,
crystallinity,
degree
deacetylation
chitosan
are
considered.
Biocompatibility,
bioadhesive,
solubility,
polycationic
character
all
based
on
these
traits.
Chitosan’s
characteristics
make
it
good
appealing
material
for
variety
physical
chemical
alterations.
This
review
talks
about
the
structure
properties.
It
also
covers
how
extracted
different
sources.
Special
emphasis
placed
utilization
in
formation
metallic
nanoparticles,
drug
delivery,
wastewater
treatment.
