The role of cobalt-based catalysts in activating peracetic acid for environmental pollutants degradation: A mini review
Chemical Engineering Journal,
Journal Year:
2025,
Volume and Issue:
unknown, P. 160649 - 160649
Published: Feb. 1, 2025
Language: Английский
The Microbial Assay for Risk Assessment (MARA) in the Assessment of the Antimicrobial Activity of Ofloxacin and Its Photoproducts
International Journal of Molecular Sciences,
Journal Year:
2025,
Volume and Issue:
26(6), P. 2595 - 2595
Published: March 13, 2025
Ofloxacin
is
one
of
the
most
commonly
used
antibacterial
substances
in
world.
Like
medicines,
it
ends
up
environment
through
municipal
sewage
and
undergoes
various
transformations,
e.g.,
photodegradation.
The
aim
this
study
was
an
extensive
analysis
ofloxacin
photodegradation
both
pure
antibiotic
a
commercial
eye
drop
forms.
In
study,
sunlight
simulator,
chromatographic
methods
quantitative
qualitative
determination,
biological
for
evaluation
toxicity
(Microbial
Assay
Risk
Assessment
(MARA),
Microtox®
Spirotox)
were
used.
results
showed
that
decomposed
almost
completely
over
2
h
irradiation.
Based
on
high
resolution
mass
spectrometry,
22
photoproducts
identified.
sensitive
strain
bacteria
MARA
test
(Delftia
acidovorans)
responded
at
concentration
7.6
µg
L−1
ofloxacin.
activity
irradiated
samples
higher
than
predicted
based
concentration.
This
suggests
resulting
may
have
bacteriostatic
effect.
additional
acute
tests
indicate
formation
toxic
photoproducts,
so
reasonable
to
use
other
organisms
are
not
focused
specific
target.
Such
actions
allow
capture
other,
unexpected
effects
formed
photoproducts.
Language: Английский
Advanced Degradation of Aniline in Secondary Effluent from a Chemical Industry Park by Cobalt Ferrite/Peracetic Acid System
Jinxiang Gao,
No information about this author
Peipei Yang,
No information about this author
Mingxin Zhu
No information about this author
et al.
Catalysts,
Journal Year:
2025,
Volume and Issue:
15(5), P. 410 - 410
Published: April 23, 2025
The
residual
emerging
pollutants
in
secondary
effluent
from
a
chemical
industry
park
contain
potential
risks
for
natural
waters.
Herein,
the
cobalt
ferrite/peracetic
acid
system
was
employed
to
destroy
aniline,
typical
pollutant,
with
reaction
rate
of
0.0147
min−1
at
pH
7.0.
Singlet
oxygen
(1O2)
served
as
predominant
reactive
species
aniline
degradation,
superoxide
radicals
(O2−)
and
organic
(R-O)
acting
roles.
valence
transition
between
Co(II)
Co(III)
on
CoFe2O4
surface
played
determining
role
progression.
presence
anions
humic
acids
low
concentrations
had
minimal
impact
removal.
Additionally,
catalyst
demonstrated
excellent
recyclability,
maintaining
pollutant
removal
above
93%
over
five
consecutive
cycles.
Lastly,
CoFe2O4/PAA
demonstrates
effective
treatment
pollutants,
including
phenolic
compounds,
pesticides,
antibiotics,
dyes,
achieving
rates
77.48%
99.99%.
Furthermore,
it
significantly
enhances
water
quality
actual
effluent,
offering
novel
theoretical
foundation
practical
insights
applying
this
catalytic
wastewater
treatment.
Language: Английский