Environmental Science and Pollution Research,
Journal Year:
2023,
Volume and Issue:
30(17), P. 49301 - 49313
Published: Feb. 11, 2023
Water
pollution
is
a
dreadful
affair
that
has
incessantly
aggravated,
exposing
our
planet
to
danger.
In
particular,
the
persistent
nitro
aromatic
compound
like
nitrophenols
causes
anxiety
researchers
due
their
hazardous
impacts,
excessive
usage,
and
removal
difficulty.
For
this
purpose,
novel
multi-featured
composite
was
constructed
based
on
κ-Carrageenan
(κ-Carr),
MOF
(MIL-125(Ti)),
magnetic
Fe
Applied Water Science,
Journal Year:
2023,
Volume and Issue:
13(2)
Published: Jan. 18, 2023
Abstract
Herein,
a
novel
sandwich-like
α
-ketoglutaric
acid
Schiff
base-aminated
chitosan
composite
(
-kGl-AmCsSB)
was
fabricated
by
reacting
and
aminated
chitosan.
The
as-fabricated
-kGl-AmCsSB
inspected
diversified
characterization
tools
to
determine
its
morphology,
surface
charge,
chemical
composition
as
well
define
the
linkage
pathway
between
-kGl
AmCs.
SEM
images
demonstrated
spongy
network
of
AmCs
with
interconnected
pores
structure
which
turned
quite
rough
due
free
amine
groups
Notably,
XPS
FTIR
spectra
suggested
group
experimental
results
implied
superior
adsorption
efficiency
Congo
red
(CR)
onto
since
maximum
capacity
q
max
)
reached
434.78
mg/g
at
25
°C
pH
3.
Based
on
kinetics
data,
CR
followed
pseudo-second-order
model.
Furthermore,
D-R
model
infers
that
occurred
via
physical
interactions
E
value
<
8
kJ/mol.
recyclability
test
implemented
for
five
cycles
R%
>
72%.
More
importantly,
mechanism
proposed
discussed.
Ultimately,
exhibited
advanced
performance
toward
along
excellent
reusability.
these
results,
we
recommend
more
modifications
exploiting
remarkable
advantages
applying
it
large
scale.
Results in Surfaces and Interfaces,
Journal Year:
2024,
Volume and Issue:
15, P. 100225 - 100225
Published: May 1, 2024
Graphene
oxide
(GO),
a
2-dimensional
(2-D)
monolayer
of
graphite,
has
drawn
lot
importance
due
to
its
accessibility
and
material
compatibility.
It
can
be
produced
by
mechanically
stirring
or
sonicating
graphite
exfoliate
it
into
layered
sheets.
Due
high
stability,
2-D
planar
structure,
huge
surface
area,
easy
chemical
adaptation
via
functionalities,
efficient
loading
with
many
biomolecules,
optical,
electrical,
mechanical
capabilities,
GO
derivatives
are
quickly
emerging
as
the
most
intensely
studied
carbon-based
materials
in
number
fields.
In
this
review,
we
provided
thorough
overview
GO,
synthesis
pristine
GO-based
composites
well
their
applications
field
biodiesel
synthesis,
adsorption,
photodegradation,
electrochemical
along
biological
significance
antimicrobial
efficiency.
Owing
distinctive
features,
garnered
interest
realm
catalyst.
The
process
transesterification
using
supported
catalyst
is
highlighted
herein.
Similarly,
adsorption
photodegradation
several
organic
dyes
effluents
also
discussed
article.
Finally,
derived
relation
attractive
trends
highlighting
future
scope
commercial
implications.
Scientific Reports,
Journal Year:
2023,
Volume and Issue:
13(1)
Published: July 4, 2023
The
magnetic
mesoporous
hydrogel-based
nanoadsornet
was
prepared
by
adding
the
ex
situ
Fe3O4
nanoparticles
(MNPs)
and
bentonite
clay
into
three-dimentional
(3D)
cross-linked
pectin
hydrogel
substrate
for
adsorption
of
organophosphorus
chlorpyrifos
(CPF)
pesticide
crystal
violet
(CV)
organic
dye.
Different
analytical
methods
were
utilized
to
confirm
structural
features.
Based
on
obtained
data,
zeta
potential
nanoadsorbent
in
deionized
water
with
a
pH
7
-
34.1
mV,
surface
area
measured
be
68.90
m2/g.
novelty
owes
possessing
reactive
functional
group
containing
heteroatom,
porous
structure
that
aids
convenient
contaminants
molecules
diffusion
interactions
between
contaminants,
viz.,
CPF
CV.
main
driving
forces
Pectin
hydrogel@Fe3O4-bentonite
adsorbent
are
electrostatic
hydrogen-bond
interactions,
which
resulted
great
capacity.
To
determine
optimum
conditions,
effective
factors
capacity
CV
CPF,
including
solution
pH,
dosage,
contact
time,
initial
concentration
pollutants,
have
been
experimentally
investigated.
Thus,
i.e.,
time
(20
15
min),
8,
dosage
(0.005
g),
(50
mg/L),
T
(298
K)
CV,
respectively,
833.333
mg/g
909.091
mg/g.
presented
high
porosity,
enhanced
area,
numerous
sites
using
inexpensive
available
materials.
Moreover,
Freundlich
isotherm
has
described
procedure,
pseudo-second-order
model
explained
kinetics.
novel
magnetically
isolated
reused
three
successive
adsorption-desorption
runs
without
specific
reduction
efficiency.
Therefore,
is
promising
system
eliminating
pesticides
dyes
due
its
remarkable
amounts.
Arabian Journal of Chemistry,
Journal Year:
2023,
Volume and Issue:
16(5), P. 104640 - 104640
Published: Feb. 3, 2023
The
contamination
of
lead
in
wastewater
causes
water
quality
problems,
which
is
toxic
to
aquatic
organisms
and
environment,
so
treatment
required
before
discharging
receiving
water.
Chicken
eggshell
powder
(CP)
chicken
powder-doped
iron
(III)
oxide-hydroxide
(CPF)
were
synthesized,
characterized,
investigated
removal
efficiencies
by
batch
experiments,
adsorption
isotherms,
kinetics,
desorption
experiments.
specific
surface
area
pore
volume
CPF
higher
than
CP,
whereas
the
diameter
size
was
smaller
CP.
phase
structures
both
materials
demonstrated
semi-crystalline
phases
with
presenting
peaks
calcium
carbonate.
Their
morphologies
irregular,
rough,
uneven
surfaces.
In
materials,
they
detected
carbon,
calcium,
oxygen,
O–H,
N–H,
C=O,
C–O,
C–H.
point
zero
charges
(pHpzc)
CP
4.47
4.83.
For
a
efficiency
because
spending
less
material
dosage
contact
time
had
high
removals
at
concentration
50
mg/L
more
95%.
Thus,
addition
helped
increase
for
adsorption.
corresponded
Langmuir
model
while
Freundlich
model.
addition,
pseudo-second-order
kinetic
relating
chemisorption
process.
Moreover,
could
be
reusable
5
cycles
77%.
Therefore,
potential
apply
industrial
applications.
