Scientific Reports,
Год журнала:
2025,
Номер
15(1)
Опубликована: Янв. 28, 2025
Abstract
In
this
study,
novel
polyaniline-coated
perovskite
nanocomposites
(PANI@CoTiO
3
and
PANI@NiTiO
)
were
synthesized
using
an
in
situ
oxidative
polymerization
method
evaluated
for
the
photocatalytic
degradation
of
Rhodamine
B
(RhB)
a
persistent
organic
pollutant.
The
displayed
significantly
enhanced
efficiency
compared
to
pure
perovskites.
1%wt
achieved
impressive
94%
RhB
under
visible
light
after
180
min,
while
1wt.%
PANI@CoTiO3
reached
87%
UV
same
duration.
X-ray
diffraction
(XRD)
confirmed
that
crystalline
structures
CoTiO
NiTiO
remained
intact
post-polymerization.
At
time,
Fourier
transform
infrared
spectroscopy
(FTIR)
verified
successful
deposition
PANI
through
characteristic
functional
group
vibrations.
Diffuse
reflectance
(DRS)
revealed
reduced
band
gaps
2.63
eV
2.46
PANI@CoTiO
,
enhancing
absorption
across
ranges.
Scanning
electron
microscopy
(SEM)
energy
dispersive
(EDS)
analysis
demonstrated
uniform
distribution
PANI,
ensuring
consistent
surface
activity
efficient
charge
transfer.
test
pseudo-first-order
mechanism.
study
elucidates
mechanism
intermediate
identification
via
HPLC-MS
analysis,
highlighting
N-de-ethylation,
aromatic
ring
cleavage
eventual
mineralization
into
CO
2
H
O
as
critical
pathways.
Furthermore,
1wt.%PANI@NiTiO
nanocomposite
excellent
stability
recyclability,
maintaining
its
over
four
consecutive
cycles
with
minimal
change.
These
findings
highlight
potential
PANI@XTiO
sustainable
wastewater
treatment,
addressing
diverse
environmental
challenges
by
tailoring
photocatalysts
specific
sources.
