Evaluation of antimicrobial, cytotoxic, antioxidant and photocatalytic properties of Ni-doped TiO2 nanoparticles produced in green method
P. S. Vindhya,
Sandhya Suresh,
V. Kavitha
и другие.
Ceramics International,
Год журнала:
2025,
Номер
unknown
Опубликована: Янв. 1, 2025
Язык: Английский
Harnessing Synergy in g‐C3N4/ZnO/PPy Nanocomposite for Efficient Photocatalytic Degradation of Phenolic and Antibiotic Pollutants
Journal of Nanotechnology,
Год журнала:
2025,
Номер
2025(1)
Опубликована: Янв. 1, 2025
The
study
introduces
an
innovative
Z‐scheme
heterojunction
g‐C
3
N
4
/ZnO/PPy
(GZP)
nanocomposite
synthesized
through
a
three‐step
process:
calcination,
coprecipitation,
and
in
situ
polymerization
of
polypyrrole
(PPy),
with
varied
PPy
concentrations
(0.5%,
1%,
2%,
3%,
4%).
Extensive
characterizations
confirmed
the
successful
integration
uniform
dispersion
ZnO
on
matrix,
enhancing
surface
interaction
structural
stability.
FTIR
incorporation
,
while
XRD
XPS
provided
insights
into
crystalline
structure
elemental
composition.
TEM
SEM
revealed
PPy,
ensuring
optimal
interaction.
UV‐DRS
analysis
showed
enhanced
visible
light
absorption,
PL
spectra
demonstrated
effective
suppression
charge
carrier
recombination,
EIS
indicating
reduced
transfer
resistance,
thus
promoting
superior
separation
transport
photogenerated
carriers.
Photocatalytic
evaluations
highlighted
remarkable
efficiency
GZP1
achieving
97%
degradation
Rose
Bengal
(RB)
93%
sulfamethoxazole
(SMZ)
at
low
concentration
10
mg/100
mL,
consistent
performance
over
four
cycles.
Active
species
identified
holes
(h
+
)
hydroxyl
radicals
(
•
OH)
as
key
contributors
to
degradation.
These
results
establish
GZP
promising
photocatalyst
high
reusability
efficiency,
addressing
critical
water
purification
challenges.
Язык: Английский
“The efficient visible light assisted photocatalytic degradation of tetracycline and crystal violet using phyto-mediated magnesium oxide-zinc oxide nanocomposites”
Journal of the Indian Chemical Society,
Год журнала:
2024,
Номер
unknown, С. 101545 - 101545
Опубликована: Дек. 1, 2024
Язык: Английский
TiO2 Nanoparticle/Carboxymethyl Cellulose Coatings for Photocatalytic Dye Degradation in Simulated Seawater
ACS Applied Nano Materials,
Год журнала:
2024,
Номер
unknown
Опубликована: Дек. 22, 2024
In
this
work,
by
integrating
TiO2
nanoparticles
and
sodium
carboxymethyl
cellulose
(CMC)
binder,
a
green
bifunctional
nanostructured
coating
(T-SCMC-vac.)
directly
coupled
with
304SS
was
designed
under
vacuum
thermal
treatment,
aiming
to
achieve
methyl
orange
degradation
metal
anticorrosion.
The
T-SCMC-vac.
exhibited
reaction
constant
1.7
times
higher
for
degrading
compared
its
counterpart
in
the
simulated
seawater
environment,
demonstrating
good
photocatalytic
performance.
Simultaneously,
provided
effective
photocathodic
protection
304SS.
open
circuit
potential
negatively
shifted
−500
mV
(vs
Ag/AgCl),
photoresponse
current
corrosion
densities
reached
approximately
10
μA
cm–2.
Furthermore,
showed
stability,
as
evidenced
98%
retention
capability
after
five
cycles
14
h
long-term
protection.
experimental
results
theoretical
calculations
suggest
that
enhanced
performance
can
be
attributed
chemical
interaction
between
CMC
via
C–O–Ti
bonds,
which
significantly
facilitated
photogenerated
carrier
transport
aligned
positions
of
TiO2,
reactive
oxygen
species,
Our
findings
provide
facile
strategy
designing
coatings
on
ocean-based
facilities
pollutant
anticorrosion
properties.
Язык: Английский
Green synthesis of copper oxide and titanium dioxide nanoparticles using Santalum album leaf extract for enhanced wastewater treatment
P. Pamitha,
K. Krishna Veni,
R. Kavitha
и другие.
Biomass Conversion and Biorefinery,
Год журнала:
2024,
Номер
unknown
Опубликована: Ноя. 26, 2024
Язык: Английский
Green Synthesis Of Zinc And Titanium Nanoparticles Using HG Seed Extract: A Sustainable Approach To Nanotechnology
African Journal of Biomedical Research,
Год журнала:
2024,
Номер
unknown, С. 241 - 250
Опубликована: Дек. 31, 2024
This
study
explores
the
biosynthesis
of
zinc
(Zn)
and
titanium
(Ti)
nanoparticles
(NPs)
using
HG
seed
extract
as
a
reducing
stabilizing
agent.
The
synthesis
was
initially
evidenced
by
visible
colour
change,
indicative
metal
ion
reduction
nanoparticle
formation.
UV-Vis
spectroscopy
confirmed
presence
Zn
TiNPs
through
distinct
SPR
peaks
at
270
nm
320
nm,
respectively.
SEM
revealed
spherical
with
sizes
ranging
from
135–225
for
NPs
84.2–138
TiNPs,
while
TEM
provided
high-resolution
insights,
confirming
their
uniform
morphology
crystalline
nature.
FTIR
identified
bioactive
compounds,
including
proteins
phenolics,
involved
in
stabilization,
showcasing
role
natural
capping
agents.
HG-mediated
green
process
produced
desirable
size,
morphology,
stability,
demonstrating
its
efficiency
eco-friendliness.
highlights
potential
sustainable
alternative
synthesis,
broad
applications
biomedicine,
environmental
remediation,
nanotechnology.
Язык: Английский