Journal of Radioanalytical and Nuclear Chemistry,
Год журнала:
2024,
Номер
333(10), С. 5025 - 5048
Опубликована: Авг. 7, 2024
Abstract
(Pyridine-2,5-diylbis(azaneylylidene))
bis-(methaneylylidene))
bis(benzene-5,1,3-triyl)
tetrakis
(hydrogen
phosphonate)
(PZMB)
was
successfully
synthesized
for
Th(IV)
and
Ce(IV)
adsorption,
the
adsorption
parameters
evaluated
found
to
be
pH
3.5,
time
60
min,
dose
0.15
g.
Adsorption
kinetics,
isotherm,
thermodynamics
studies.
kinetics
studies
show
that
adsorbent
follow
pseudo-second-order
model
while
isotherm
conclude
processes
fitted
Langmuir
D-R
model.
The
maximum
capacity
of
BZMB
are
366.4
244.53
mg/g
respectively,
Thermodynamic
indicate
both
exhibited
by
PZMB
were
endothermic,
spontaneous
sorption
occurs
in
a
random
manner.
Applied Water Science,
Год журнала:
2024,
Номер
14(9)
Опубликована: Авг. 12, 2024
Growing
concerns
regarding
the
presence
of
pharmaceuticals
in
wastewater
necessitate
their
removal.
Membrane
filtration
offers
a
promising
approach.
This
study
explores
development
biochar
incorporated
mixed
matrix
membranes
(MMMs)
for
ciprofloxacin
removal
from
water.
Biochar,
derived
pyrolysis
agricultural
waste,
was
blended
with
polyether
sulfone
(PES)
and
polyvinylpyrrolidone
varying
ratios.
The
resulting
MMMs
exhibited
progressively
improved
properties
increasing
content.
Notably,
membrane
M11,
comprising
equal
parts
PES
biochar,
displayed
highest
porosity,
lowest
surface
roughness
(12.0),
contact
angle
(31.05°),
indicating
enhanced
hydrophilicity
(increased
by
58.19%
compared
to
biochar-free
membrane).
M11
effectively
removed
along
three
additional
antibiotics
different
classes.
Fourier-transform
infrared
spectroscopy
X-ray
photoelectron
analyses
corroborated
ciprofloxacin.
Furthermore,
demonstrated
excellent
regenerability,
retaining
over
57%
efficiency
after
four
cycles.
These
findings
highlight
potential
as
sustainable
cost-effective
pharmaceutical
wastewater.
Toxin Reviews,
Год журнала:
2024,
Номер
unknown, С. 1 - 14
Опубликована: Авг. 21, 2024
Advancements
in
health
risk
assessment
are
vital
for
protecting
public
health.
This
study's
objectives
were
to
analyze
the
degree
of
nitrate
contamination,
multi-route
risks
six
age
groups,
and
potential
sources
water
contaminants
a
Nigerian
suburban
area.
Nitrate
pollution
index
(NPI)
results
between
−1.00
0.06,
indicating
low
human
impact.
According
analysis,
infants
ages
6
12
months
more
vulnerable,
whereas
humans
20
>
60
have
lower
risks.
may
be
due
fact
that
bodily
tissues
vulnerable
potentially
toxic
contaminants.
For
all
categories,
associated
with
ingestion
was
greater
than
dermal
contact.
Varimax-rotated
factor
analysis
five
principal
component
extractions
revealed
varied
from
geogenic
processes
human-initiated
activities.
