Metal-free photocatalyst with reduced graphene oxide-doped graphitic carbon nitride homojunctions for efficient antibacterial applications
RSC Advances,
Год журнала:
2025,
Номер
15(4), С. 2444 - 2451
Опубликована: Янв. 1, 2025
Efficient
photocatalytic
antibacterial
applications
with
a
reduced
graphene
oxide-doped
g-C
3
N
4
homojunctions.
Язык: Английский
Mechanical characteristics and antibacterial activity against Staphylococcus aureus of sustainable cellulosic paper coated with Ag and Cu modified ZnO nanoparticles
Scientific Reports,
Год журнала:
2024,
Номер
14(1)
Опубликована: Ноя. 29, 2024
Abstract
In
this
study,
zinc
oxide
(ZnO)
nanoparticles
were
prepared
and
modified
using
a
wet
chemical
method
with
different
concentrations
of
Ag
Cu
nanoparticles.
The
objective
was
to
improve
the
mechanical,
optical,
antibacterial
properties
coated
paper
by
pigments.
long-term
antimicrobial
effects
evaluated
over
25
years.
successful
synthesis
hexagonal
structure
ZnO
decorated
spherical
ranging
from
20
50
nm
confirmed
X-ray
photoelectron
spectroscopy
(XPS),
diffraction
(XRD),
transmission
electron
microscopy
(TEM).
By
increasing
0.01%
1.0%,
mechanical
enhanced.
tensile
strength
reached
maximum
6.77
kN/m
7.03
kN/m,
elongation
increased
1.69%
1.70%,
energy
absorption
improved
approximately
77
80
J/m
2
,
burst
rose
218
219
kPa,
respectively.
use
Ag-modified
maintains
optical
properties,
while
Cu-modified
reduces
brightness
whiteness
without
affecting
opacity.
inhibition
activity
higher
silver
(Ag)
copper
(Cu)
content.
formulations
containing
1%
Ag/ZnO
1%Cu/ZnO
showed
long-lasting
against
gram-positive
Staphylococcus
aureus
bacteria.
Even
after
years
aging,
they
maintained
rates
92.2%
62.2%,
molecular
docking
GeneMANIA
analysis
revealed
potential
ZnO,
disrupt
S.
cell
wall
biosynthesis
pathway
targeting
MurA
enzyme
associated
genes.
Язык: Английский
Laser-Cladding Cu-Cr-X Coating on Cu Alloy for Longer Service Life in Electrical Applications
Materials,
Год журнала:
2025,
Номер
18(5), С. 1103 - 1103
Опубликована: Фев. 28, 2025
Advancements
in
electrical
components
have
intensified
the
challenges
for
copper
alloy
wear
resistance
and
high-temperature
performance
applications.
The
surface
coating
preparation
of
Cu
alloys
is
crucial
enhancing
their
lifespan
promoting
sustainable
resource
development.
This
study
explored
microstructure
properties
Cu-Cr-X
coatings
(X
=
Mo/W,
Al2O3/TiO2)
on
substrates
via
laser-cladding
to
improve
hardness,
vital
component
reliability
switching
capacity.
process
involved
adjusting
power
reinforcing
phase
particle
size.
results
showed
hardness
>
110
HV
all
(vs.
67.4
substrate).
Cu-Cr-W
achieved
highest
at
179
due
W
dispersion
WCr
precipitate
reinforcement.
It
also
maintained
a
stable
CoF
lowest
rate
(1.87
mg/km),
with
fivefold
compared
substrate
alone.
excelled
extension
material
loss
reduction
superior
resistance,
conductivity.
Язык: Английский