Toxics,
Journal Year:
2024,
Volume and Issue:
12(1), P. 88 - 88
Published: Jan. 19, 2024
P-nitroaniline
(PNA)
is
an
aniline
compound
with
high
toxicity
and
can
cause
serious
harm
to
aquatic
animals
plants.
Multiwalled
carbon
nanotubes
(MWCNTs)
are
a
multifunctional
carbon-based
material
that
be
applied
in
energy
storage
biochemistry
applications
semiconductors
as
well
for
various
environmental
purposes.
In
the
present
study,
MWCNTs
(CO2–MWCNTs
KOH–MWCNTs)
were
obtained
through
CO2
KOH
activation.
ACID–MWCNTs
surface
treatment
H2SO4–HNO3
mixture.
Herein,
we
report,
first
time,
employed
nanoadsorbents
remove
PNA
from
aqueous
solution.
The
had
nanowire-like
features
different
tube
lengths.
nanotubular
structures
not
destroyed
after
being
activated.
KOH–MWCNTs,
CO2–MWCNTs,
areas
of
487,
484,
80
m2/g,
respectively,
pore
volumes
1.432,
1.321,
0.871
cm3/g,
respectively.
activated
contained
C–O
functional
groups,
which
facilitate
adsorption.
To
determine
maximum
adsorption
capacity
MWCNTs,
influences
several
factors—contact
solution
pH,
stirring
speed,
amount
adsorbent—on
investigated.
KOH–MWCNTs
highest
capacity,
followed
by
pristine
ACID–MWCNTs.
exhibited
rapid
(>85%
within
5
min)
(171.3
mg/g).
Adsorption
isotherms
kinetics
models
investigate
mechanism.
results
reutilization
experiments
revealed
retained
five
cycles.
surface-activated
modified
synthesized
this
study
effectively
hazardous
pollutants
wastewater
may
have
additional
uses.
Nanoscale,
Journal Year:
2024,
Volume and Issue:
16(28), P. 13230 - 13246
Published: Jan. 1, 2024
Nanoarchitectonics
may
be
highly
compatible
with
applications
in
biological
systems.
Construction
strategies
and
functions
of
bio-gel
nanoarchitectonics
medical
tissue
engineering
are
discussed.
ACS Agricultural Science & Technology,
Journal Year:
2023,
Volume and Issue:
3(11), P. 1068 - 1080
Published: Nov. 8, 2023
Indiscriminate
use
of
pesticides
to
meet
the
global
demand
for
food
has
contaminated
groundwater
and
surface
water,
affecting
environment.
In
view
this,
it
is
imperative
find
an
economical
solution
this
critical
issue.
Herein,
a
novel
β-cyclodextrin
cross-linked
poly(vinyl
alcohol)–chitosan
(PVA/CS/β-CD)
hydrogel
reported
adsorption
bentazon
(BZ)
herbicide.
The
properties
PVA/CS/β-CD
hydrogel,
such
as
its
morphology,
area,
thermal
stability,
presence
functional
groups,
have
profound
effects
on
BZ
surface,
hence
these
been
investigated
by
FESEM,
BET,
TGA,
FT-IR
analytical
techniques.
Several
influential
factors,
viz.,
pH
solution,
temperature,
initial
concentration
BZ,
contact
time,
mass
explored
Box–Behnken
design
model
systematic
batch
studies.
From
response
methodology
model,
13.45
mg
was
able
remove
93.71%
from
10
mL
mg/L
at
7.4
in
120
min,
assessed
behavior
thermodynamically
spontaneous
endothermic.
maximum
capacity
398.40
mg/g,
which
comes
Langmuir
isotherm
follows
pseudo-second-order
model.
BZ-loaded
can
be
recycled
using
methanol
shows
good
removal
efficiency
(>70%)
six
consecutive
adsorption–desorption
cycles.
Additionally,
BZ-adsorbed
employed
sustained
release
vehicle
having
long-term
weedicide
diverse
values
water.
