ChemistrySelect,
Journal Year:
2024,
Volume and Issue:
9(41)
Published: Oct. 28, 2024
Abstract
We
report
herein
a
dual
function
mesoporous
structure
of
titanium
oxide
based
porous
carbon
with
large
surface‐to‐volume
ratios
for
efficient
degradation
noxious
methylene
blue
dye
(MB)
from
an
aqueous
environment.
The
photocatalysts
is
fabricated
via
direct
template
synthesis
highly
ordered
silica‐titania
monolith
doped
Ag
0
/Ag
2
O
starting
quaternary
microemulsion
liquid
crystalline
phase.
produced
monoliths
are
subjected
in‐situ
to
doping
by
growing
silver,
in
the
cubic
cavities,
and
on
silica/titania
structure's
domain.
This
study
investigated
efficiency
novel
composite
materials,
consisting
silver‐doped
(SiO
/TiO
),
which
synthesized
using
templating
approach.
photocatalytic
performance
photodegradation
MB
has
been
studied.
procedure
was
employed
achieve
decolorization
cationic
visible
light.
catalyst
effectively
achieved
dyed
solution
through
processes
adsorption
photodegradation.
SiO
,
TiO
at
ratio
1
:
1:0.5,
underwent
calcination
air
environment
(AgOST),
exhibited
removal
99
%
compared
its
calcined
state
under
argon
(AgSTC).
ACS Applied Nano Materials,
Journal Year:
2024,
Volume and Issue:
7(3), P. 2630 - 2638
Published: Jan. 18, 2024
Water
pollution
is
a
serious
problem
in
both
developed
and
developing
countries.
Several
methods
have
been
used
to
purify
wastewater,
among
which
photocatalytic
decomposition
widely
organic
pollutants
wastewater.
In
this
work,
hollow
nanospheres
of
titanium
dioxide
TiO2
were
first
prepared
by
the
carbon
sphere
template
method
sol–gel
method,
then,
(TiO2)
compounded
with
silicon
(SiO2)
impregnation
generate
complexes
different
ratios
nanoparticles
dioxide.
The
best
degradation
performance
h-TiO2/SiO2
materials
was
achieved
when
ratio
h-TiO2
SiO2
5:1.
cyclic
efficiency
5:1
composites
showed
only
slight
change
capacity
compared
cycle,
thus
ensuring
durability
samples.
However,
quenching
experiments
yielded
that
hydroxyl
radicals
play
major
role
process,
possible
reaction
mechanisms
are
discussed
detail.
high
environmentally
friendly
nanosphere
photocatalysts
makes
them
ideal
for
water
purification
applications
offers
potential
utilization
solar
energy
effectively
reduce
environmental
pollution.
nanophotocatalysts
can
not
degrade
dyes
but
also
be
valuable
self-cleaning
glass
applications.
Applied Surface Science Advances,
Journal Year:
2024,
Volume and Issue:
19, P. 100576 - 100576
Published: Feb. 1, 2024
Developing
a
photocatalyst
for
environmental
remediation
with
extortionate
visible
light
absorption
capability
and
low
reunion
of
photogenerated
charge
carriers
is
tremendous
interest.
Considering
this,
the
present
work
reports
fabrication
low-cost
eco-friendly
Fe-doped
WO3/BiVO4
prepared
by
facile
one-step
hydrothermal
technique.
The
outperformed
in
removal
rhodamine
B
dye
than
pristine
samples.
XRD
Raman
spectroscopy
analysis
affirms
successful
doping
Fe
cations
within
WO3
crystal
structure.
studies
reveal
redshift
to
higher
wavelengths
which
elucidates
enhancement
oxygen
vacancy,
band
gap
value
changes
are
also
apparent
due
heterojunction
scheme
photocatalyst.
time-resolved
photoluminescence
substantiate
effective
reduction
recombination
rate
an
average
lifetime
364
ns
proving
it
be
dye.
catalyst
revealed
outstanding
performance
94.3
%
6
h.
However,
efficiency
was
at
pH
14
degradation
92.6
(100
min)
corroborating
that
influence
hydroxyl
radical
greatly
facilitates
Fenton-like
reaction
provokes
process
faster.
It
further
confirmed
from
scavenging
that,
addition
H2O2
scavenger
fast
formation
radicals
emerged
fusion
superoxide
radicals.
This
outperformance
validates
competency
organic
pollutants.
Nanomaterials,
Journal Year:
2024,
Volume and Issue:
14(7), P. 642 - 642
Published: April 7, 2024
Polyaniline
(PANI)
constitutes
a
very
propitious
conductive
polymer
utilized
in
several
biomedical,
as
well
environmental
applications,
including
tissue
engineering,
catalysis,
and
photocatalysis,
due
to
its
unique
properties.
In
this
study,
nano-PANI/N-TiO2
nano-PANI/Ag-TiO2
photocatalytic
composites
were
fabricated
via
aniline’s
oxidative
polymerization,
while
the
Ag-and
N-chemically
modified
TiO2
nanopowders
synthesized
through
sol–gel
approach.
All
produced
materials
fully
characterized.
Through
micro-Raman
FT-IR
analysis,
co-existence
of
PANI
chemically
particles
was
confirmed,
XRD
analysis
composites’
average
crystallite
size
determined
≈20
nm.
The
semi-crystal
structure
polyaniline
exhibits
higher
efficiency
compared
that
other
less
crystalline
forms.
spherical-shaped
developed
are
innovative,
stable
(zeta
potential
range
from
−26
−37
mV),
cost-effective,
characterized
by
enhanced
under
visible
light
(energy
band
gaps
≈
2
eV),
with
relatively
simple
methods,
possibility
recycling
reusing
them
future
applications
industry,
wastewater
treatment
biomedicine.
Thus,
PANI-encapsulated
Ag
N
nanocomposites
exhibit
high
degradation
towards
Rhodamine
B
dye
upon
visible-light
irradiation,
presenting
simultaneously
biocompatibility
different
normal
cell
lines.
Molecules,
Journal Year:
2024,
Volume and Issue:
29(18), P. 4299 - 4299
Published: Sept. 11, 2024
The
increasing
global
requirement
for
clean
and
safe
drinking
water
has
necessitated
the
development
of
efficient
methods
elimination
organic
contaminants,
especially
dyes,
from
wastewater.
This
study
reports
synthesis
magnesium
oxide
(MgO)
nanoparticles
via
a
simple
precipitation
approach
their
thorough
characterization
using
various
techniques,
including
XRD,
FT-IR,
XPS,
TGA,
DLS,
FESEM.
Synthesized
MgO
nanoparticles'
photocatalytic
effectiveness
was
evaluated
towards
rhodamine
B
6G
degradation
under
both
UV
visible
light
irradiation.
results
indicated
that
possess
face-centered
cubic
structure
with
enhanced
crystallinity
purity,
as
well
an
average
crystallite
size
approximately
3.20
nm.
demonstrated
significant
BET
surface
area
(52
m
