Environmental Toxicology and Chemistry,
Год журнала:
2024,
Номер
43(10), С. 2199 - 2210
Опубликована: Июль 29, 2024
We
investigated
the
occurrence
and
environmental
risk
of
eight
contaminants
emerging
concern
(CECs;
acetaminophen,
naproxen,
diclofenac,
methylparaben,
17β-estradiol,
sulfathiazole,
sulfadimethoxine,
sulfamethazine)
in
three
Brazilian
water
bodies,
namely,
Monjolinho
River
Basin
(São
Paulo
State),
Mogi
Guaçu
Itapecuru
(Maranhão
State)
sampling
campaigns.
The
CECs
were
only
quantified
surface
samples
collected
at
Basin.
Acetaminophen,
methylparaben
detected
range
<200
to
575.9
ng
L
Water,
Год журнала:
2023,
Номер
15(20), С. 3549 - 3549
Опубликована: Окт. 11, 2023
The
present
study
demonstrates
the
synthesis
and
application
of
Ag/ZnO
powder
films
(thickness
4
μm)
as
photocatalysts
for
natural
sunlight
ultraviolet
(UV,
315–400
nm)
irradiation.
procedure
is
simple
eco-friendly,
based
on
photo-fixation
silver
ions
onto
commercial
ZnO
via
UV
illumination
first
time.
photocatalytic
efficiency
newly
developed
evaluated
through
degradation
paracetamol
in
distilled
drinking
water.
Our
experimental
evidences
show
that
nanostructure
are
more
active
than
pristine
photodegradation
process.
Namely,
modified
with
10−2
M
concentration
achieve
highest
(D)
percentages
both
types
water
(Ddistilled
=
80.97%,
Ddrinking
82.5%)
under
sunlight.
Under
exposure,
slightly
lower
but
still
higher
those
achieved
by
pure
53.13%,
61.87%).
It
found
activity
grows
direct
proportion
to
Ag+
ions:
<
Ag
10−4/ZnO
10−3/ZnO
10−2/ZnO.
Scanning
electron
microscopy,
X-ray
diffraction,
photoelectron
spectroscopy,
UV–vis
diffuse
reflectance
photoluminescence
spectroscopy
used
characterize
as-prepared
nanostructures.
improved
performance
mostly
attributed
combination
excited
transfer
from
inhibition
photogenerated
electron–hole
pair
recombination.
Furthermore,
can
retain
their
after
three
cycles
use,
highlighting
potential
practical
treatment
pharmaceutical
wastewater
real-world
scenarios
where
often
readily
available
artificial
light.
Environmental Toxicology and Chemistry,
Год журнала:
2024,
Номер
43(10), С. 2199 - 2210
Опубликована: Июль 29, 2024
We
investigated
the
occurrence
and
environmental
risk
of
eight
contaminants
emerging
concern
(CECs;
acetaminophen,
naproxen,
diclofenac,
methylparaben,
17β-estradiol,
sulfathiazole,
sulfadimethoxine,
sulfamethazine)
in
three
Brazilian
water
bodies,
namely,
Monjolinho
River
Basin
(São
Paulo
State),
Mogi
Guaçu
Itapecuru
(Maranhão
State)
sampling
campaigns.
The
CECs
were
only
quantified
surface
samples
collected
at
Basin.
Acetaminophen,
methylparaben
detected
range
<200
to
575.9
ng
L
