Nanomaterials,
Journal Year:
2024,
Volume and Issue:
14(20), P. 1674 - 1674
Published: Oct. 18, 2024
In
this
work,
the
nonlinear
optical
(NLO)
properties
of
CuO
nanoparticles
(CuO
NPs)
were
studied
experimentally
using
pulsed
laser
ablation
(PLA)
technique.
A
nanosecond
Nd:
YAG
was
employed
as
excitation
source
to
create
NPs
in
distilled
water.
Various
samples
prepared
at
periods
20,
30,
and
40
min.
Utilizing
HR-TEM,
structure
synthesized
verified.
addition,
a
UV-VIS
spectrophotometer
used
investigate
linear
features
samples.
The
Z-scan
technique
utilized
explore
NLO
samples,
including
absorption
coefficient
(β)
refractive
index
(n2).
An
experimental
study
on
conducted
variety
wavelengths
(750-850
nm),
average
powers
(0.8-1.2
W),
sample
concentrations
sizes.
reverse
saturable
(RSA)
behavior
all
differed
with
wavelength
power.
demonstrated
excellent
limiters
various
wavelengths,
limitations
dependent
size
concentration
NPs.
Advances in Colloid and Interface Science,
Journal Year:
2023,
Volume and Issue:
321, P. 103010 - 103010
Published: Sept. 30, 2023
This
article
provides
an
in-depth
analysis
of
various
fabrication
methods
bimetallic
nanoparticles
(BNP),
including
chemical,
biological,
and
physical
techniques.
The
review
explores
BNP's
diverse
uses,
from
well-known
applications
such
as
sensing
water
treatment
biomedical
uses
to
less-studied
areas
like
breath
for
diabetes
monitoring
hydrogen
storage.
It
cites
results
over
1000
researchers
worldwide
>300
peer-reviewed
articles.
Additionally,
the
discusses
current
trends,
actionable
recommendations,
importance
synthetic
industry
players
looking
optimize
manufacturing
techniques
specific
applications.
also
evaluates
pros
cons
methods,
highlighting
potential
plant
extract
synthesis
mass
production
capped
BNPs.
However,
it
warns
that
this
method
may
not
be
suitable
certain
requiring
ligand-free
surfaces.
In
contrast,
laser
ablation
offer
better
control
reactivity,
especially
where
surfaces
are
critical.
report
underscores
environmental
benefits
compared
chemical
use
hazardous
chemicals
pose
risks
extraction,
production,
disposal.
emphasizes
need
life
cycle
assessment
(LCA)
articles
in
literature,
given
growing
volume
research
on
nanotechnology
materials.
caters
at
all
stages
applies
fields
applying
nanomaterials.
Crystals,
Journal Year:
2023,
Volume and Issue:
13(4), P. 637 - 637
Published: April 7, 2023
The
manipulation
of
matter
at
the
atomic
level
(nanotechnology)
has
experienced
an
explosion
in
research
interest
recent
years.
Bimetallic
nanoparticles
are
vital
due
to
their
high
biocompatibility,
stability
and
comparatively
less
toxicity.
synthesis
methods
that
include
physical,
chemical
biological
explored
explained
detail,
along
with
advantages.
They
have
a
wide
range
applications
synergistic
properties
including
(in
medicine
agriculture),
environmental
application
water
treatment
removal
toxic
contaminants),
engineering
nanosensors,
nanochips
nano-semiconductors)
physical
optics,
catalysis
paints).
green
approach
is
promising
method
can
give
rise
more
biocompatible
bimetallic
increasing
pollution.
However,
despite
these
interesting
attributes
nanoparticle,
there
still
much
work
be
done
improve
biocompatibility
because
toxicity
potentially
hazardous
effects.
Frontiers in Bioengineering and Biotechnology,
Journal Year:
2024,
Volume and Issue:
11
Published: Jan. 8, 2024
The
excessive
use
of
antibiotics
in
clinical
settings
has
resulted
the
rapid
expansion,
evolution,
and
development
bacterial
microorganism
resistance.
It
causes
a
significant
challenge
to
medical
community.
Therefore,
it
is
important
develop
new
antibacterial
materials
that
could
replace
traditional
antibiotics.
With
advancements
nanotechnology,
become
evident
metallic
metal
oxide
nanoparticles
(MeO
NPs)
exhibit
stronger
properties
than
their
bulk
micron-sized
counterparts.
silver
(Ag
copper
(Cu
have
been
extensively
studied,
including
release
ions,
oxidative
stress
responses,
damages
cell
integrity,
immunostimulatory
effects.
However,
crucial
consider
potential
cytotoxicity
genotoxicity
Ag
NPs
Cu
NPs.
Numerous
experimental
studies
demonstrated
bimetallic
(BNPs)
composed
strong
effects
while
maintaining
low
cytotoxicity.
Bimetallic
offer
an
effective
means
mitigate
associated
with
individual
considerably
enhancing
efficacy.
In
this
paper,
we
presented
on
various
synthesis
methods
for
Ag-Cu
NPs,
emphasizing
synergistic
effects,
processes
reactive
oxygen
species
(ROS)
generation,
photocatalytic
properties,
mechanisms,
factors
influencing
performance.
These
enhance
efficacy,
reduce
toxicity,
find
broader
applications
combating
antibiotic
resistance
promoting
public
health.
Scientific Reports,
Journal Year:
2024,
Volume and Issue:
14(1)
Published: April 27, 2024
Abstract
Water
pollution,
arising
from
the
presence
of
toxic
dyes
and
chemicals,
is
a
global
challenge,
urging
need
for
eco-friendly
solutions
in
water
decontamination.
This
study
focused
on
synthesis
copper
oxide
nanoparticles
(CuO
NPs),
zinc
(ZnO
bimetallic
CuO-ZnO
nanocomposite
(CZ
NC)
through
an
environmentally
friendly
method
employing
Tragia
involucrata
L.
leaf
extract.
Comprehensive
analysis
structural
optical
properties
involved
using
various
analytical
techniques
such
as
XRD,
FT-IR,
XPS,
UV-DRS,
PL,
FE-SEM,
EDAX,
TEM,
SAED,
zeta
potential,
TGA,
BET.
In
comparison
to
pristine
CuO
ZnO
NPs,
CZ-NC
demonstrated
notably
enhanced
photocatalytic
activity
degradation
Rhodamine
B
dye
(RhB).
The
optimum
conditions
RhB
were
found
be
pH
9
catalyst
dosage
1
mg/mL
concentration
10
ppm.
Under
these
conditions,
high
efficiencies
78%,
83%,
96.1%
respectively
over
105
min.
Through
LC-HRMS,
identification
products
offered
valuable
insights
into
pathway
degradation.
Furthermore,
toxicity
intermediates,
conducted
ECOSAR
software,
indicated
formation
non-toxic
by-products
(ChV/LC
50
/EC
>
100)
after
completion
reaction.
recycled
catalysts
exhibited
sustained
stability
up
4
cycles,
with
only
minor
decrease
6.8%.
confirms
their
catalytic
efficacy
purifying
polluted
water.
research
significantly
contributes
progress
nanocomposites,
enhancing
realm
environmental
remediation.
Applied Surface Science Advances,
Journal Year:
2024,
Volume and Issue:
19, P. 100577 - 100577
Published: Feb. 1, 2024
Electrochemical
oxidation
is
a
low-toxicity,
fast-reacting
technology
that
easy
to
employ.
This
has
great
promise
for
improving
the
sustainability
and
efficiency
of
wastewater
treatment
by
eliminating
dyes
other
organic
contaminants.
In
this
study,
cathodic
electrodeposition
technique
was
used
effectively
synthesize
pure
Cu-MOF
on
Pt
electrode.
Fourier-Transform
Infrared
Spectroscopy
(FTIR),
Ultraviolet
-Visible
(UV-Vis),
Scanning
Electron
Microscopy
(SEM),
Energy-Dispersive
X-Ray
(EDX),
Diffraction
(XRD)
were
evaluate
synthesized
Copper-Metal
Organic
Framework
(Cu-MOF).
The
electrochemical
degradation
tartrazine
dye
in
an
aqueous
KCl
solution
under
various
conditions
Cu-MOF/Pt
Tartrazine
(Tz)
as
function
time
been
adjusted
influence
operational
parameters
such
type
supporting
electrolyte,
pH
solution,
accumulation
time,
applied
potential.
Based
results,
acid
medium
(pH=3)
most
beneficial
active
Tz
at
optimal
operating
conditions.
It
found
99
%
had
disappeared
following
20
min
electrolysis.
potential
1.4
V
since
it
no
negative
impacts
energy
consumption
or
stability
durability
electrodes.
fitted
pseudo-first-order
kinetics
with
rate
constant
0.124
min-1.
findings
demonstrated
good
%,
electrode
recovery,
reproducibility,
reusability
have
all
researched.
A
computational
investigation
Lee/Yang/Parr
(B3LYP)
level,
6-311++
G(d,p),
basis
set
calculation
demonstrate
destruction
HClO
radical.
results
showed
experimentally
predicted
mechanism
theoretically
determined
agreed
remarkably
well.
According
proposed
mechanism,
functions
catalyst
Tz,
where
discharges
water
produce
HO•
radicals,
which
are
physically
adsorbed
surface.
Cu-MOF(HO•)
combines
Cl−
ions
presence
form
Cu-MOF(HClO)
attacks
azo
bond
(–N=N–)
degrades
into
CO2
H2O.
