Journal of Metals Materials and Minerals,
Journal Year:
2025,
Volume and Issue:
35(1), P. e2228 - e2228
Published: Feb. 25, 2025
Bismuth-based
perovskite
material
has
been
used
as
promising
photocatalysts
for
photo
catalytic
degradation
of
toxic
dyes
with
tailored
crystallites
and
fine-tuned
band
gap
superior
activity.
BiFeO3
Bi4Ti3O12
were
synthesized
by
a
simple
sol-gel
method
their
crystal
structure,
morphology,
optical
property
characterized
XRD,
SEM,
TEM,
FTIR,
EDS
UV–DRS.
The
XRD
pattern
exhibits
the
formation
rhombohedral
orthorhombic
phase
bismuth
ferrite
titanate.
study
confirms
non-uniform
nanoparticles
uniform
particle
distribution,
energy
(Eg)
2.2
eV
2.9
eV,
respectively,
from
UV-DRS
analyses
Tauc
Plot.
examined
photocatalytic
prepared
catalyst
MG
MB
altering
parameters
like
solution
pH,
dose,
agitation
time.
results
indicated
that
exhibited
higher
degrading
efficiency
compared
to
under
similar
experimental
conditions.
degraded
more
than
@
80%
both
0.4
mg∙L‒1
within
90
min
74%
having
0.6
taken
in
20
mL
ppm
dye
concentration
60
prevailing
parameter
efficacy
may
be
contributed
Eg
makes
active
solar
spectrum.
mechanism
involved
photoinduced
electron/hole
pairs
producing
radical
species,
kinetics
following
pseudo-first
order
rate
photocatalyst
stability
studied
through
five
continuous
runs.
found
outperforms
reducing
cationic
suggests
them
potential
waste
water
treatment
alternatives.
Environmental Science & Technology,
Journal Year:
2024,
Volume and Issue:
58(27), P. 12155 - 12166
Published: June 27, 2024
The
rising
in
situ
chemical
oxidation
(ISCO)
technologies
based
on
polymerization
reactions
have
advanced
the
removal
of
emerging
contaminants
aquatic
environment.
However,
despite
their
promise,
uncertainties
persist
regarding
effectiveness
eliminating
structurally
complex
contaminants,
such
as
sulfonamide
antibiotics
(SAs).
This
study
elucidated
that
oligomerization,
rather
than
mineralization,
predominantly
governs
SAs
carbon
materials/periodate
system.
amine
groups
played
a
crucial
role
forming
organic
radicals
and
subsequent
coupling
due
to
high
f–
index
low
bond
orders.
Moreover,
highlighted
robust
adhesion
oligomers
catalyst
surface,
facilitated
by
enhanced
van
der
Waals
forces
hydrophobic
interactions.
Importantly,
plant
animal
toxicity
assessments
confirmed
nontoxic
nature
deposited
material
affirming
efficacy
material-based
ISCO
treating
contaminated
surface
water
groundwater.
Additionally,
novel
classification
approach,
Δlog
k,
was
proposed
differentiate
kinetic
control
steps,
providing
deeper
insights
into
quantitative
structure–activity
relationship
(QSAR)
facilitating
selection
optimal
descriptors
during
oligomerization
processes.
Overall,
these
significantly
enhance
our
understanding
via
demonstrate
superiority
C-ISCO
decontamination.