Journal of Applied Polymer Science,
Год журнала:
2024,
Номер
unknown
Опубликована: Дек. 26, 2024
ABSTRACT
To
achieve
efficient
and
selective
removal
of
Cu
2+
from
a
multi‐ion
coexistence
environment,
‐imprinted
SA/CMC/AM
microspheres
(IMSCA)
were
synthesized.
The
adsorption
capacity
efficiency
the
material
under
different
preparation
conditions
investigated.
surface
morphology
functional
groups
IMSCA
characterized
analyzed
using
SEM,
FTIR,
XRD.
SEM
images
revealed
relatively
smooth
with
specific
pores
uniform
structure.
Special
peaks
appeared
in
FTIR
spectrum
IMSCA,
indicating
possibility
imprinting
process
presence
sites.
semicrystalline
structure
exhibited
by
imprinted
XRD
characterization
further
reinforces
likelihood
In
terms
kinetics,
followed
pseudo–second‐order
kinetic
model,
suggesting
that
chemical
was
dominant
during
process.
isotherms,
Langmuir
model
better
fitted
experimental
data,
monolayer
adsorption.
mixed
solutions
multiple
metal
ions.
After
10
adsorption–desorption
cycles,
remained
at
approximately
90%.
Compared
other
materials,
exhibits
higher
capacity,
faster
elution
rate,
superior
reusability.
Journal of Polymer Science,
Год журнала:
2025,
Номер
unknown
Опубликована: Март 7, 2025
ABSTRACT
Electrodeposition
of
polysaccharides
offers
an
attractive
strategy
for
fabricating
nanoparticles
and
their
nanocomposite
films
on
electrodes
to
develop
bioelectronic
devices
functional
materials.
Herein,
a
controllable
approach
the
green
preparation
nanosilver
(nAg)
with
variable
sizes
is
developed
based
coordinated
electrodeposition
carboxymethyl
cellulose
(CMC).
In
addition
serving
as
electrodeposited
polysaccharide,
CMC
can
function
reducing
agent
stabilizer
preparing
nAg.
After
electrodeposition,
uniform
smooth
(nAg/CMC
films)
have
been
deposited
anodic
electrode.
Spectral
analysis
transmission
electron
microscopy
confirm
presence
nAg
in
films.
Especially,
adjustable
particle
(ranging
from
2.03
13.62
nm)
be
achieved
through
straightforward
convenient
control
conditions
(voltage,
temperature).
Moreover,
endowed
unique
fluorescent
properties
since
silver
nanoclusters
(Ag
NCs)
relatively
small
size
controllably
prepared.
The
nAg/CMC
film‐modified
show
potential
electrochemical
detection
that
film
containing
small‐sized
Ag
NCs
exhibits
good
sensitivity.
Thus,
this
study
provides
novel,
facile,
controllable,
eco‐friendly
promisingly
applied
prepare
nanocomposites
specific
special
properties.
Gels,
Год журнала:
2024,
Номер
10(9), С. 585 - 585
Опубликована: Сен. 12, 2024
The
development
of
cost-effective
and
high-performance
technologies
for
wastewater
treatment
is
essential
achieving
a
sustainable
economy.
Among
the
various
methods
available
water
remediation,
adsorption
widely
recognized
as
an
effective
straightforward
approach
removing
range
pollutants.
Gel
materials,
particularly
hydrogels
aerogels,
have
attracted
significant
research
interest
due
to
their
unique
properties.
Hydrogels,
instance,
are
noted
ability
be
regenerated
reused,
ease
separation
handling,
suitability
large-scale
applications.
Additionally,
low
cost,
high
absorption
capacity,
contribution
environmental
protection
important
advantages.
Aerogels,
on
other
hand,
distinguished
by
thermal
conductivity,
transparency,
flexibility,
porosity,
mechanical
strength,
light
weight,
large
surface
area,
ultralow
dielectric
constant.
This
review
provides
comprehensive
analysis
current
literature,
highlighting
gaps
in
knowledge
regarding
classification,
preparation,
characterization,
key
properties
these
materials.
potential
application
aerogels
contaminants
such
dyes,
heavy
metals,
organic
inorganic
pollutants,
also
discussed.
Polysaccharides,
Год журнала:
2024,
Номер
5(3), С. 399 - 421
Опубликована: Авг. 12, 2024
In
recent
decades,
cellulose
(Cel)
and
its
modified
forms
have
emerged
as
a
new
class
of
versatile
adsorbents
for
removing
dyes
from
aqueous
solutions.
This
work
reports
the
immobilization
macromolecules
obtained
reactions
between
ethylenediamine
(N)
ethylene
sulfide
(S)
in
three
molar
proportions
(1:1,
1:2,
1:4)
on
surface
chlorinated
(Cl-Cel),
aiming
to
increase
adsorption
capacity
dyes.
The
materials
(NS-Cel,
N2S-Cel,
N4S-Cel)
were
characterized
by
elemental
analysis,
which
demonstrated
with
ratio
12
sulfides
1
NS-Cel
N4S-Cel
10
NS-Cel.
Intense
C-H
stretching
bands
CH2
groups
at
2900
cm−1
FT-IR
spectra
suggest
large
amount
functional
group,
corroborating
13C
NMR
spectra,
presented
signal
33
ppm
referring
methylene
carbons.
had
excellent
performance
studied,
Remazol
yellow
GR
dye
being
approximately
24
times
greater
than
raw
material
(87.70
±
2.63
mg
g−1)
best-hyperbranched
3.60
0.18
g−1
Cel,
about
ten
higher
red
RB
(57.84
1.73
compared
previously
published
Cel.
