Langmuir,
Journal Year:
2025,
Volume and Issue:
unknown
Published: April 7, 2025
This
study
reports
fabrication
of
graphene-titanium
dioxide
(G-TiO2)
nanocomposites
with
varying
graphene
content
(0%,
25%,
50%,
and
75%)
through
a
sonication-assisted
co-precipitation
method.
The
synthesized
materials
were
analyzed
FTIR,
DRS,
SEM,
XRD
techniques,
which
confirmed
the
successful
formation
an
anatase-phase
TiO2
tetragonal
structure
crystallite
sizes
ranging
from
10
to
25
nm
after
calcination
at
600
°C
for
4
h.
addition
resulted
in
significant
reduction
bandgap
energy
3.2
eV
1.55
eV,
enhancing
material's
absorption
visible-light
spectrum.
nanocomposite
50%
loading
exhibited
strong
adsorption
highest
photocatalytic
efficiency,
achieving
98.29%
degradation
cationic
methylene
blue
dye
under
irradiation.
exceptional
performance
is
attributed
synergistic
effects
graphene,
including
improved
light
absorption,
enhanced
charge
carrier
separation,
increased
electron
transfer
efficiency.
Kinetic
analysis
revealed
that
followed
pseudo-first-order
reaction
kinetics.
Furthermore,
recycling
tests
demonstrated
structural
stability
reusability
(up
5
cycles)
nanocomposite,
indicating
its
potential
as
effective
photocatalyst
environmental
applications.
effectiveness
G-TiO2
mitigating
industrial
pollutants
also
underscores
significance
approach.
Surfaces and Interfaces,
Journal Year:
2024,
Volume and Issue:
51, P. 104691 - 104691
Published: June 29, 2024
"Inverse
vulcanization"
sulfur
polymers
present
an
environmentally
friendly
approach
for
producing
highly
water
repellent
(superhydrophobic)
materials.
However,
exposure
to
UV
irradiation
can
lead
the
degradation
of
these
into
hydrophilic
compounds,
thereby
compromising
long-term
superhydrophobic
properties
coatings.
In
this
study,
2,4,6,8-tetramethyl-2,4,6,8-tetravinylcyclotetrasiloxane
(TVTSi)
was
employed
synthesize
(poly(S-TVTSi)
capable
withstanding
while
preserving
photocatalytic
properties.
Employing
a
central
composite
design,
poly(S-TVTSi)
combined
with
inorganic
nanoparticles
(SiO2
and
TiO2)
fabricate
A
variation
in
materials
composition
used
investigate
influence
on
Including
polymer
(sulfur:TVTSi
ratio),
roughness
agent
(TiO2:SiO2
concentration
(roughness
agent),
relative
amount
poly(S-TVTSi).
The
identified
as
main
factor
affecting
contact
angle
(WCA),
whereas
all
factors
(above)
generally
influenced
transmittance,
photocatalysis,
stability.
Using
tailored
desirability
function,
study
demonstrated
that
high-performing
coating
exhibited
superior
stability
(up
300
min)
superhydrophobicity
(WCA
>
150°).
also
identifies
number
coatings
robust
superhydrophobicity,
maintaining
WCA
150°
across
extreme
pH
varying
concentrations
aqueous
NaCl.
displayed
versatile
activity
against
diverse
organic
contaminants
emerging
concern
bodies,
such
caffeine
saccharin.
made
surpass
limited
polymers.
These
demonstrate
performance
those
previously
reported,
they
viable
alternative
production
durable
Heliyon,
Journal Year:
2024,
Volume and Issue:
10(15), P. e35400 - e35400
Published: July 29, 2024
The
rapid
industrial
growth
has
led
to
increased
production
of
wastewater
containing
pollutants
like
heavy
metals
and
organic
compounds.
These
pose
risks
human
health
the
environment
if
not
properly
treated.
Engineered
nanocatalyst
materials
(ENMs)
are
a
burgeoning
technology
that
show
promise
for
treating
wastewater.
Metal
oxide
ENMs,
such
as
Fe
IntechOpen eBooks,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Jan. 7, 2025
This
chapter
presents
a
general
overview
of
titanium
dioxide
(TiO2)
as
key
component
in
photocatalytic
degradation
processes
with
emphasis
on
water
quality
improvement
focusing
the
organic,
toxic,
persistent,
and
water-diluted
pharmaceutical
waste
molecules.
They
are
often
linked
to
emerging
contaminants
such
drug
residues
byproducts
from
significant
anthropogenic
activities.
Throughout
text,
there
is
an
physical,
chemical,
optical
properties
that
make
it
essential
applications.
It
also
introduces
fundamental
concepts
principles
photocatalysis,
facilitating
analysis
optimal
experimental
parameters
conditions
for
efficient
processes.
Additionally,
interaction
between
some
pharmaceuticals
examined
understand
potential
side
effects
may
impact
its
efficacy.
Finally,
discusses
current
challenges
study
part
waste.
Overcoming
these
would
enhance
performance
while
ensuring
widespread
implementation
treatment
systems.
