Applied Surface Science Advances,
Journal Year:
2022,
Volume and Issue:
11, P. 100284 - 100284
Published: Aug. 11, 2022
The
importance
of
different
polymorphic
forms
iron
oxide
nanoparticles
attracted
a
lot
attentions
in
various
applications
due
to
their
unique
electrical,
optical
and
magnetic
properties.
Moreover,
the
excellent
biocompatibility,
high
surface
area,
spherical
shape,
tunable
nanoscale
size
availability
synthesis
route
make
them
desirable
biological
pharmaceutical
applications.
To
this
aim,
review,
methods
were
discussed,
also
main
characterization
techniques
used
for
elucidation
reviewed.
exploitation
nanoparticles-based
systems
as
anticancer,
antiviral,
antimicrobial
agents
its
involvement
drug
delivery
system
reviewed
details.
Additionally,
influence
reagent
type
conditions
utilized
was
highlighted.
Journal of Advanced Research,
Journal Year:
2022,
Volume and Issue:
44, P. 53 - 70
Published: April 16, 2022
With
rapid
development
in
agriculture
and
industry,
water
polluted
with
heavy
metallic
ions
has
come
to
be
a
serious
problem.
Adsorption-based
methods
are
simple,
efficient,
broadly
used
eliminate
metals.
Conventional
adsorption
materials
have
the
problems
of
secondary
environmental
contamination.
Hydrogels
considered
effective
adsorbents,
those
prepared
from
biopolymers
biocompatible,
biodegradable,
non-toxic,
safe
handle,
increasingly
adsorb
metal
ions.
The
natural
origin
easy
degradability
biopolymer
hydrogels
make
them
potential
for
remediation.
Its
absorption
capacity
enables
it
efficiently
various
pollutants
aqueous
environment,
its
internal
pore
channels
increase
specific
surface
area
adsorption,
which
can
provide
abundant
active
binding
sites
through
chemical
modification.
As
most
representative
hydrogels,
polysaccharide-based
diverse,
physically
chemically
stable,
undergo
complex
modifications
enhance
their
performance,
thus
exhibiting
superior
ability
remove
contaminants.
This
review
summarizes
preparation
followed
by
discussion
main
categories
applications
hydrogels.
Arabian Journal of Chemistry,
Journal Year:
2022,
Volume and Issue:
15(5), P. 103743 - 103743
Published: Jan. 29, 2022
During
COVID-19
crisis,
water
pollution
caused
by
pharmaceutical
residuals
have
enormously
aggravated
since
millions
of
patients
worldwide
are
consuming
tons
drugs
daily.
Antibiotics
the
preponderance
pollutants
in
bodies
that
surely
cause
a
real
threat
to
human
life
and
ecosystems.
The
excellent
characteristics
chitosan
such
as
nontoxicity,
easy
functionality,
biodegradability,
availability
nature
abundant
hydroxyl
amine
groups
onto
its
backbone
make
it
promising
adsorbent.
Herein,
we
aimed
provide
comprehensive
overview
recent
published
research
papers
regarding
removal
antibiotics
composite-based
adsorbents.
structure,
ionic
form,
optimum
pH
λmax
most
common
including
Tetracycline,
Ciprofloxacin,
Amoxicillin,
Levofloxacin,
Ceftriaxone,
Erythromycin,
Norfloxacin,
Ofloxacin,
Doxycycline,
Cefotaxime
Sulfamethoxazole
were
summarized.
development
adsorbents
order
enhance
their
adsorption
capacity,
reusability
validity
presented.
Moreover,
mechanisms
these
explored
more
information
about
adsorbate-adsorbent
interactions.
Besides
dominant
factors
on
process
pH,
dosage,
coexisting
ions,
etc.
discussed.
conclusions
future
recommendations
provided
inspire
for
further
researches.
Scientific Reports,
Journal Year:
2022,
Volume and Issue:
12(1)
Published: May 5, 2022
In
this
work,
a
simple
and
green
synthesis
procedure
for
phytofabrication
Zinc
oxide-silver
supported
biochar
nanocomposite
(Ag/ZnO@BC)
via
Persicaria
salicifolia
biomass
is
investigated
the
first
time
to
uphold
numerous
chemistry
such
as
less
hazardous
chemical
syntheses.
XRD
technique
showed
crystal
structure
of
phytosynthesized
Ag/ZnO@BC,
whereas
UV-visible
spectroscopy,
FT-IR,
SEM,
EDX,
TEM,
XPS
analyses
indicated
successful
biosynthesis
nanocomposite.
Testing
photocatalytic
potential
novel
in
removal
TC
under
different
conditions
unraveled
its
powerful
photodegradation
efficiency
that
reached
70.3%
optimum
reaction
conditions:
concentration;
50
ppm,
pH;
6,
dose
Ag/ZnO@BC;
0.01
g,
temperature;
25
°C,
H2O2
100
mM.
The
reusability
Ag/ZnO@BC
was
evident
it
53%
after
six
cycles
regeneration.
also
shown
be
potent
antimicrobial
agent
against
Klebsiella
pneumonia
well
promising
antioxidant
material.
Therefore,
current
work
presented
could
efficiently
employed
various
environmental
medical
applications.
ACS Omega,
Journal Year:
2022,
Volume and Issue:
7(9), P. 8046 - 8059
Published: Feb. 21, 2022
The
conventional
synthesis
of
nanomaterials
employing
physical
and
chemical
methods
usually
requires
high
cost
toxic
chemicals.
Thus,
a
facile,
ecofriendly,
cost-effective,
novel,
sustainable
route
for
the
silver-loaded
biochar
nanocomposite
(Ag@biochar)
using
Journal of Porous Materials,
Journal Year:
2022,
Volume and Issue:
30(2), P. 607 - 618
Published: Oct. 27, 2022
Abstract
In
this
investigation,
new
porous
adsorbent
beads
were
formulated
via
the
incorporation
of
graphene
oxide
(GO)
into
cellulose
acetate
(CA)
for
adsorptive
removal
methylene
blue
(MB)
dye.
The
experimental
results
signified
that
adsorption
MB
dye
increased
with
increase
in
GO
ratio
from
10
to
25%.
addition,
process
obeyed
PSO
kinetic
model
and
Langmuir
isotherm
a
maximum
capacity
reaching
369.85
mg/g.
More
importantly,
it
was
proposed
mechanism
onto
GO@CA
proceeded
electrostatic
interactions,
H-bonding,
van
der
Waals
forces,
n-π
π
-π
interactions.
Besides,
fabricated
exhibited
an
excellent
ability
recycle
reuse
after
five
successive
cycles.
there
high
selectivity
towards
molecules
presence
co-existing
cations
such
as
Fe
2+
,
Zn
Cu
Ni
.
Biomass Conversion and Biorefinery,
Journal Year:
2022,
Volume and Issue:
14(2), P. 1697 - 1709
Published: Feb. 1, 2022
Abstract
Green-based
materials
represent
a
new
promising
class
of
ecofriendly
and
economic
adsorbents.
Herein,
nano
zero-valent
iron
supported-lemon
derived
biochar
(NZVI-LBC)
was
prepared
for
the
first
time
examined
in
adsorptive
removal
methylene
blue
as
model
pollutant.
Different
characterization
tools
were
used
to
ensure
successful
fabrication
NZVI-LBC
composite
including
FTIR,
XRD,
TEM,
XPS,
VSM,
BET,
zeta
potential
analysis.
It
found
that
fabricated
NZVI–supported
attained
propitious
adsorbent
criteria
since
it
provided
supreme
efficient
adsorption
process
at
short
time.
The
reckoned
maximum
capacity
MB
onto
reached
1959.94
mg/g
within
merely
5
min.
obtained
data
clarified
fitted
pseudo
2
nd
order
kinetic
Freundlich
isotherm
model.
Besides,
be
endothermic
nature.
In
addition,
revealed
an
excellent
behavior
even
after
seven
cycles.
concrete
results
reflect
potentiality
superb
candidate
remove
cationic
pollutants
from
their
aqueous
solutions.
Graphical
abstract
