Water,
Journal Year:
2024,
Volume and Issue:
16(2), P. 218 - 218
Published: Jan. 8, 2024
Photocatalysis
has
emerged
as
a
promising
technology
for
the
removal
of
emerging
contaminants
such
antibiotics
from
water.
Fixing
photocatalytic
materials
on
polymers
to
prepare
applicable
membranes
is
feasible
method
applying
photocatalysis.
This
study
explored
preparation
composite
PAN-TiO2
and
PAN-TiO2-rGO
(PAN-rGTi)
by
combining
TiO2,
TiO2-reduced
graphene
oxide
(rGO)
polyacrylonitrile
(PAN)
using
electrospinning.
Characterization
through
SEM
EDS
analysis
confirms
membrane’s
microstructure
elemental
composition.
The
electrospun
PAN-rGTi
exhibit
stable
efficient
performance
in
degrading
sulfamethoxazole
(SMX)
enrofloxacin
(ENR),
two
typical
commonly
found
water
bodies.
Photocatalytic
degradation
experiments
under
simulated
solar
light
reveal
superior
compared
PAN
alone,
with
notable
increase
reaction
rate
constants
(1.8
2.2
times
SMX
3.2
4.0
ENR)
even
higher
enhancements
(2.8
3.0
5.4
6.5
alone.
Despite
minor
decreases
(from
97.6%
90.4%)
activity
over
five
cycles,
remain
effective,
showcasing
their
stability
recyclability.
highlights
potential
application
sustainable
effective
removing
Further
exploration
should
focus
optimizing
specific
improving
feasibility
wastewater
treatment
purification
Journal of the American Ceramic Society,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Feb. 24, 2025
Abstract
A
straightforward
physical
mixing
method
was
used
to
prepare
the
highly
efficient
TiO
2
/polypyrrole
(PPy)
photocatalysts
of
hydrothermally
prepared
and
PPy,
obtained
by
chemical
oxidative
polymerization,
with
different
amounts
PPy
(0,
0.5,
1,
1.5,
3,
5
wt.%).
Synthesized
composites
were
characterized
XRPD,
FTIR,
FESEM,
EDS,
BET,
UV–Vis
methods,
while
their
photocatalytic
activity
estimated
towards
degradation
toxic
dye
Reactive
Orange
16
(RO16)
based
on
TOC.
XRPD
showed
that
as
nanoanatase
crystallites
26
nm.
Band
gap
energies
nanocomposites
decreased
content
increase
from
3.11(3)
2.94(3)
eV.
The
/1%PPy
demonstrated
highest
completely
degrading
RO16
for
120
min
under
simulated
solar
light
described
pseudo‐first
reaction
order
rate
constant
0.056(5)
−1
.
It
established
73%
total
reactive
species
h
+
photodegradation
mechanism
followed
a
slightly
modified
direct
Z‐scheme
in
which
played
an
active
irreplaceable
role
opening
new
path.
Besides
extremely
high
efficiency,
recyclability
confirmed
since
no
decrease
efficiency
found
after
several
runs
photocatalysis.
Water,
Journal Year:
2024,
Volume and Issue:
16(2), P. 218 - 218
Published: Jan. 8, 2024
Photocatalysis
has
emerged
as
a
promising
technology
for
the
removal
of
emerging
contaminants
such
antibiotics
from
water.
Fixing
photocatalytic
materials
on
polymers
to
prepare
applicable
membranes
is
feasible
method
applying
photocatalysis.
This
study
explored
preparation
composite
PAN-TiO2
and
PAN-TiO2-rGO
(PAN-rGTi)
by
combining
TiO2,
TiO2-reduced
graphene
oxide
(rGO)
polyacrylonitrile
(PAN)
using
electrospinning.
Characterization
through
SEM
EDS
analysis
confirms
membrane’s
microstructure
elemental
composition.
The
electrospun
PAN-rGTi
exhibit
stable
efficient
performance
in
degrading
sulfamethoxazole
(SMX)
enrofloxacin
(ENR),
two
typical
commonly
found
water
bodies.
Photocatalytic
degradation
experiments
under
simulated
solar
light
reveal
superior
compared
PAN
alone,
with
notable
increase
reaction
rate
constants
(1.8
2.2
times
SMX
3.2
4.0
ENR)
even
higher
enhancements
(2.8
3.0
5.4
6.5
alone.
Despite
minor
decreases
(from
97.6%
90.4%)
activity
over
five
cycles,
remain
effective,
showcasing
their
stability
recyclability.
highlights
potential
application
sustainable
effective
removing
Further
exploration
should
focus
optimizing
specific
improving
feasibility
wastewater
treatment
purification
