ACS Omega,
Journal Year:
2024,
Volume and Issue:
9(52), P. 51136 - 51145
Published: Dec. 8, 2024
Electronic
waste
(e-waste)
has
become
a
significant
environmental
concern
worldwide
due
to
the
rapid
advancement
of
technology
and
short
product
lifecycles.
Waste-printed
electronic
boards
(WPCBs)
contain
valuable
metals
semiconductors;
among
them,
tin
can
be
recycled
repurposed
for
sustainable
material
production.
This
study
presents
potential
ecofriendly
methodology
recovery
from
WPCBs
in
form
oxide
nanostructured
powders.
The
soldering
points
are
extracted
dissolved
dilute
HNO
Abstract
Illuminated
semiconductors
have
been
used
to
remediate
a
variety
of
pollutants
found
in
water.
industrial
wastewater
treatment
using
UV
irradiation
combination
with
oxidants
or
catalysts
(TiO2).
In
this
study,
TiO2-SnO2
nanocomposites
different
ratios
will
be
prepared
and
characterized,
their
use
the
photocatalytic
degradation
acid
red
37
dye
aqueous
solution
under
as
model
pollutant
examined.
The
were
characterized
XRD,
TEM,
EDAX,
FTIR,
XPs.
Utilizing
batch
photoreactor,
was
investigated
utilizing
several
advanced
oxidation
processes
varying
SnO2
contents
(0–15
weight
percent)
inorganic
antioxidants
(H2O2,
Na2S2O8,
NaIO4)
UV/TiO2-to-SnO2
ratio
(90:10).
Then
effects
PH,
concentrations,
loadings
(g/L)
nanocomposite
on
activity
SnO2/TiO2
nanocrystals
studied.
Results in Chemistry,
Journal Year:
2024,
Volume and Issue:
9, P. 101675 - 101675
Published: July 1, 2024
The
biosynthesis
of
nanomaterials
using
plants
has
become
a
promising
substitute
for
conventional
chemical
and
physical
methods.
This
study
aims
to
produce
Palladium
nanoparticles
(PdNPs)
utilizing
Turmeric
(Curcuma
longa)
extract
assess
their
pharmacological
application
as
antioxidant,
antifungal,
antibacterial,
anticancer
agents.
PdNPs
were
characterized
transmission
electron
microscopy,
field
emission
scanning
X-ray
diffraction,
Fourier
transform
infrared,
ultraviolet–visible
spectroscopy.
showed
antioxidant
activity
the
DPPH
assay
at
all
tested
concentrations.
percentage
scavenging
effect
130
µg/mL
was
33
%.
same
concentration
noticeable
antifungal
antibacterial
agar
well
diffusion
method
against
candida
species
Escherichia
coli
within
an
inhibition
range
17
mm
20
mm,
respectively.
Also,
exhibited
significant
cytotoxic
concentrations
MTT
MCF-7
breast
cancer
cell
line.
viability
declined
26.53
%
in
treated
cells
µg/mL.
In
conclusion,
our
findings
demonstrate
simplicity
efficiency
synthesizing
Curcuma
longa
eco-friendly
manner
potential.
