Science for energy and environment.,
Journal Year:
2024,
Volume and Issue:
unknown, P. 9 - 9
Published: Nov. 15, 2024
Article
Enhanced
Photo-Fenton
Degradation
of
Antibiotics
through
Internal
Electric
Field
Formation
at
the
Interface
Mixed-Phase
FeS₂
Hongyan
Liu
1,2,
Yunhang
Shao
Shuai
Dou
1,2
and
Chengsi
Pan
1,2,*
1
Key
Laboratory
Synthetic
Biological
Colloids,
Ministry
Education,
School
Chemical
Material
Engineering,
Jiangnan
University,
Wuxi
214122,
China
2
International
Joint
Research
Center
for
Photoresponsive
Molecules
Materials,
*
Correspondence:
[email protected]
Received:
9
September
2024;
Revised:
October
Accepted:
13
November
Published:
15
2024
Abstract:
Iron
sulfide
(FeS₂)
is
a
rich
mineral
resource
widely
used
as
an
efficient
Fenton
photo-Fenton
reagent
due
to
its
non-toxicity
low
synthesis
cost.
However,
mechanism
underlying
degradation
activity
related
two
crystal
phases—pyrite
(P-FeS₂)
marcasite
(M-FeS₂)—is
still
not
well
understood.
In
this
study,
P-FeS₂,
M-FeS₂,
their
mixed
phase
(P/M-FeS₂)
were
prepared
hydrothermal
reactions.
The
results
showed
that
P/M-FeS₂
exhibited
highest
activity,
achieving
removal
rate
approximately
99%
50
ppm
ciprofloxacin
(CIP)
within
3
minutes,
outperforming
other
catalysts
in
pollutant
degradation.
study
revealed
internal
electric
field
(IEF)
generated
interface
M-FeS₂
P-FeS₂
differing
work
functions.
This
IEF
accelerates
regeneration
active
sites
(Fe²⁺
S₂²⁻-P-FeS₂
M-FeS₂)
required
reaction,
thereby
explaining
superior
phase.
introduces
theory
first
time
explain
mixed-phase
reaction.
formation
can
enhance
involved
improving
both
reaction
stability.
highlights
significance
regulating
phases
pollutants
during
heterogeneous
reactions
offers
insights
developing
highly
catalysts.
Catalysts,
Journal Year:
2024,
Volume and Issue:
14(3), P. 189 - 189
Published: March 10, 2024
A
large
variety
of
pharmaceutical
compounds
have
recently
been
detected
in
wastewater
and
natural
water
systems.
This
review
highlighted
the
significance
removing
compounds,
which
are
considered
indispensable
emerging
contaminants,
from
Various
advanced
oxidation
processes
(AOPs),
including
UV-H2O2,
Fenton
photo-Fenton,
ozone-based
processes,
photocatalysis,
physical
such
as
sonolysis,
microwave,
electron
beam
irradiation,
regarded
most
viable
methods
to
eliminate
different
categories
discussed.
All
these
AOPs
exhibit
great
promising
techniques,
catalytic
degradation
process
advantages,
disadvantages
each
technique
were
deliberated.
Heterogeneous
photocatalysis
employing
metal
oxides,
particularly
anatase
TiO2
nanoparticles
catalysts
activated
by
UV
light
was
reviewed
terms
electron–hole
separation,
migration
charge
carriers
catalyst
surfaces,
redox
potential
carriers.
brief
overview
also
emphasized
that
TiO2-based
nanomaterials
photocatalysts,
a
combination
other
enhanced
photocatalytic
efficiency.
Finally,
challenges
applying
environmental
remediation
treatments
degrade
mass
spectroscopic
analysis
biological
activity
test
by-products
contaminants
resulting
summarized.
Surfaces,
Journal Year:
2024,
Volume and Issue:
7(1), P. 54 - 78
Published: Jan. 11, 2024
Society
confronts
the
pressing
environmental
challenges
posed
by
pervasive
presence
of
toxic
pollutants
in
aquatic
ecosystems.
The
repercussions
contaminant
release
extend
far
and
wide,
endangering
marine
life
human
well-being.
While
various
techniques
such
as
bioremediation,
filtration,
adsorption
have
been
employed
for
wastewater
treatment,
they
grapple
with
cost
effectiveness
overall
efficiency
issues.
Advanced
oxidative
processes,
including
photocatalysis
Fenton,
emerged
viable
solutions
response
to
emerging
contaminants.
However,
efficacy
largely
hinges
on
choice
catalyst.
Their
distinctive
attributes,
chemical
defects
exceptional
stability,
make
perovskite
oxides
a
promising
These
materials
can
be
synthesized
through
diverse
methods,
rendering
them
versatile
adaptable
widespread
applications.
Ongoing
research
endeavors
are
diligently
focused
enhancing
performance
oxides,
optimizing
their
integration
into
catalytic
exploring
innovative
approaches
material
immobilization.
This
comprehensive
review
seeks
elucidate
most
pivotal
advances
composites
within
treatment
domain.
Additionally,
it
sheds
light
burgeoning
trends
multifaceted
confronting
this
field,
which
present
insights
treating
antibiotic-contaminated
environment,
delving
strategies,
green
technologies,
challenges,
trends.
