Chemical Engineering Journal,
Год журнала:
2024,
Номер
498, С. 155025 - 155025
Опубликована: Авг. 23, 2024
Biochar
(pyrolyzed
organic
material)
has
been
increasingly
recognized
for
its
catalytic
role
in
facilitating
the
advanced
oxidation
of
emerging
pollutants.
However,
inherent
capacity
remains
highly
uncontrollable,
leading
to
considerable
uncertainty
when
scaling
up
real-world
applications.
This
study
explores
intensified
biochar
coated
with
CaO2
generating
hydroxyl
radicals
(OH·)
and
tebuconazole,
a
prevalent
fungicide,
tebuconazole
was
selected
as
representative
pesticide
agricultural
drainage.
In
addition
evaluating
potential
degradation
by
processes
(AOPs),
adsorption
capabilities
two
commercially
available
biochars,
one
derived
from
waste
(ABC)
other
spruce
chips
(SBC),
well
their
CaO2-coated
derivatives
(ABC/CaO2
SBC/CaO2),
were
also
assessed.
By
taking
advantage
strong
biochar,
activating
AOPs
at
sites
CaO2,
this
material
enables
more
efficient
targeted
removal
tebuconazole.
The
results
indicate
that
coating
on
promoted
over
tenfold
increase
generation
OH·,
resulting
99%
within
10
min.
Despite
decrease
40–50%
resulted
coating,
10-minutes
overall
performance
significantly
enhanced.
is
closely
related
surface
chemical
properties,
particularly
presence
persistent
free
which
can
be
regenerated.
research
paves
new
way
employing
CaO2-enhanced
mitigation
measures.
Journal of Agricultural and Food Chemistry,
Год журнала:
2025,
Номер
unknown
Опубликована: Март 17, 2025
Tebuconazole
is
widely
used
in
agricultural
practices,
leading
to
elevated
residue
levels
soils.
However,
its
biotransformation
and
the
ecotoxicological
effects
of
corresponding
transformation
products
(TPs)
remain
insufficiently
explored.
To
fill
this
research
gap,
TPs
tebuconazole
an
earthworm-soil
system
were
identified
by
UHPLC-QTOF/MS
combined
with
UHPLC-QLiT/MS.
Six
chiral
tentatively
identified,
four
detected
both
earthworms
soil,
while
two
found
exclusively
earthworm.
Significant
enantioselectivity
was
observed
for
five
earthworms,
involving
cytochrome
P450
enzyme-mediated
hydroxylation
dechlorination.
In
vitro
metabolism
experiments
using
earthworm
microsomes
revealed
that
CYP1A2,
CYP2J2,
CYP2E1
involved
pathway
tebuconazole.
Molecular
docking
results
confirmed
S-(+)-tebuconazole
produced
more
hydroxylated
than
R-(-)-tebuconazole
due
lower
binding
energy
these
enzymes.
Predictions
from
ECOSAR
model
indicated
most
significant
reducing
toxicity
These
findings
provide
valuable
insights
into
environmental
fate
risk
assessment
at
enantiomeric
level.
Environmental Toxicology and Pharmacology,
Год журнала:
2025,
Номер
unknown, С. 104708 - 104708
Опубликована: Апрель 1, 2025
Tebuconazole
(TBZ)
is
a
broad-spectrum
fungicide
that
disrupts
fungal
cell
membrane.
Due
to
its
extensive
application
in
agriculture,
TBZ
frequently
detected
aquatic
ecosystems,
posing
potential
risks
amphibians.
However,
the
effects
of
TBZ-based
formulations
on
amphibian
development
remain
poorly
understood.
The
present
study
investigates
Tebucur
embryogenesis
South
African
clawed
frog.
Two-cell
stage
embryos
were
exposed
varying
concentrations
(0.01-100mg
a.i./L)
static
non-renewal
bioassay.
exposure
time
varied
between
four
and
14
days,
depending
desired
developmental
analysis
method.
resulted
mortality
with
LC50-value
8.0mg
a.i./L
at
days.
As
well,
various
morphological
abnormalities
during
neural
cardiac
emerged.
Additionally,
reduction
overall
mobility
was
observed.
This
underlines
need
for
strict
regulation
use
TBZ-formulations.
