Separations,
Год журнала:
2023,
Номер
10(7), С. 389 - 389
Опубликована: Июль 2, 2023
Heavy
metal
toxicity
in
water
is
a
serious
problem
that
may
have
harmful
effects
on
human
health
and
the
ecosystem.
Lead
[Pb(II)]
cadmium
[Cd(II)]
are
two
such
heavy
ions,
present
water,
whose
severity
well-known
well-studied.
In
current
research,
magnetic
biochar
composite
(MBC)
studied
as
an
adsorbent
material
for
effective
removal
of
lead
ions
from
solutions.
Magnetite
(Fe3O4)
nanoparticles
pine-needle-derived
ultrasonicated
were
used
different
weight
ratios
to
prepare
APTES
(3-aminopropyl
triethoxysilane)-functionalized
MBC
(FMBC).
An
average
crystalline
size
~10
nm
magnetite
NPs
was
obtained
via
XRD
analysis.
The
adsorption
characteristics
both
Pb(II)
Cd(II)
investigated
batch
experiment.
FTIR
spectra
raw
biochar,
MBC,
FMBC,
metal-loaded
FMBC
at
stages.
decrease
intensity
–NH2
functional
group
residue
confirmed
successful
ions.
SEM-EDX
showed
uniform
onto
surface
adsorbent.
Magnetic
found
be
very
basic
pH,
maximum
97%
instantaneous
observed
synthetic
Langmuir
isotherm
model
predicted
monolayer
good
affinity
between
prepared
low-cost,
environmentally
friendly,
it
has
shown
performance.
Therefore,
our
study
suggests
under
ion
aqueous
solutions
normal
room
temperature.
Only
few
hundred
milligrams
dose
sufficient
remove
higher
concentrations
(~100
ppm)
pH
conditions
Polymers for Advanced Technologies,
Год журнала:
2023,
Номер
35(1)
Опубликована: Окт. 9, 2023
Abstract
Polysaccharides
are
a
class
of
natural
biopolymers
that
have
attracted
significant
attention
due
to
their
unique
properties,
which
make
them
attractive
for
use
in
wide
range
applications.
These
an
important
role
our
daily
life,
and
designing
biomaterials
biomedical
applications
requires
careful
consideration
factors
such
as
biocompatibility,
biodegradability,
renewability,
affordability,
availability,
all
can
be
achieved
with
polysaccharides.
This
review
paper
focuses
on
the
polysaccharides
provides
in‐depth
analysis
potential
arabinoxylan,
type
hemicellulose,
various
fields,
including
drug
delivery,
infection
control,
tissue
engineering,
wound
healing,
others.
Arabinoxylan,
is
derived
from
plants,
most
abundant
hemicellulose
has
diverse
catalyst
its
renewable
nature.
Polysaccharide‐based
covers,
delivery
systems,
food
preservation,
biocomposite
films,
making
emerging
excipient
pharmaceutical
research.
highlights
polysaccharide‐based
science
suggests
continued
research
development
will
lead
broader
more
innovative
field.
The
significantly
advance
healthcare
improve
patient
outcomes.
Frontiers in Environmental Engineering,
Год журнала:
2024,
Номер
3
Опубликована: Янв. 31, 2024
The
review
aimed
to
identify
differences
and
similarities
in
the
adsorption
process
of
five
azo
dyes
[congo
red
(CR),
reactive
black
5
(RB5),
methyl
orange
(MO),
II
(OII),
(MR)]
on
natural
materials,
biosorbents,
industrial
agricultural
waste,
or
biomass,
which
are
alternatives
costly
activated
carbon
locally
available.
were
characterized
compared
based
their
molecular
structure
weight,
water
solubility,
acid
dissociation
constant,
n-octanol-water
partition
coefficient,
maximum
absorbance.
RB5
CR
diazo
dyes,
whereas
MO,
OII,
MR
mono-azo
dyes.
anionic
is
an
dye,
direct
dye.
CR,
RB5,
MR,
OII
molecules
contain
one
more
sulfonate
functional
group(s),
but
does
not.
We
performed
a
literature
following
parameters:
initial
dye
concentration,
adsorbent
dosage,
pH,
temperature,
isotherm,
kinetic
models,
thermodynamic
parameters,
synergetic
competitive
interactions.
tended
adsorb
best
acidic
medium
at
higher
temperatures.
concentration
dosage
studies
indicated
importance
using
appropriate
amount
for
effective
removal.
follow
Langmuir
isotherm
pseudo-second-order
model.
Most
processes
endothermic
spontaneous,
leading
increase
randomness
solid-liquid
interface.
These
results
indicate
between
Relevant
mechanisms
assumed
be
electrostatic
forces,
hydrogen
bonding,
π–π
interactions,
among
others.
Nevertheless,
focus
lies
development
characterization
not
study
influences
from
matrix
“industrial
wastewater”.
Therefore,
research
needed
develop
units
application
textile
industries.
Heliyon,
Год журнала:
2024,
Номер
10(23), С. e40370 - e40370
Опубликована: Ноя. 15, 2024
The
incidence
of
water
pollution
in
developing
countries
is
high
due
to
the
lack
regulatory
policies
and
laws
that
protect
bodies
from
anthropogenic
activities
industrial
wastewater.
Industrial
wastewater
contains
significant
amounts
heavy
metals
are
detrimental
human
health,
aquatic
organisms,
ecosystem.
focus
this
review
was
evaluate
sources
treatment
methods
wastewater,
with
an
emphasis
on
technologies,
advantages,
disadvantages,
innovation.
It
observed
conventional
(such
as
flotation,
coagulation/flocculation,
adsorption)
had
shown
promising
results
but
posed
certain
limitations,
such
generation
volumes
sludge,
relatively
low
removal
rates,
inefficiency
treating
metal
concentrations,
sensitivity
varying
pH.
Recent
technologies
like
nanotechnology,
photocatalysis,
electrochemical
coagulation
have
advantages
over
for
removing
metals,
including
higher
improved
energy
efficiency,
greater
selectivity
specific
contaminants.
However,
costs
associated
these
advanced
remain
a
major
drawback.
Therefore,
we
recommend
future
developments
technology
reducing
both
waste
generation.
