Scientific Reports,
Journal Year:
2024,
Volume and Issue:
14(1)
Published: July 19, 2024
Abstract
Developing
stable
and
highly
efficient
metal
oxide
photocatalysts
remains
a
significant
challenge
in
managing
organic
pollutants.
In
this
study,
zinc
nanoparticles
(ZnO
NPs)
were
successfully
synthesized
using
various
plant
extracts,
pomegranate
(P.M),
beetroot
roots
(B.S),
seder,
along
with
chemical
process.
The
produced
ZnO
NPs
characterized
X-ray
diffraction
(XRD),
Fourier-transform
infrared
spectroscopy
(FT-IR),
ultraviolet–visible
(UV–Vis),
Field
Emission
Scanning
Electron
Microscope
(FESEM),
High-Resolution
Transmission
Microscopy
(HRTEM),
Surface
Area.
For
all
prepared
samples,
the
results
indicated
that
composition
of
extract
affects
several
characteristics
particles,
such
as
their
photocatalytic
properties,
energy
bandgap
(E
g
),
particle
size,
ratio
two
intensity
(0
0
2)
(1
0)
crystalline
planes.
size
varies
between
20
30
nm.
To
examine
NPs'
activity
presence
UV
light,
Methyl
Orange
(MO)
was
utilized.
E
by
method
3.16
e.
V,
whereas
it
2.84,
2.63,
2.59
for
P.M,
Seder,
B.S
respectively.
most
effective
NPs,
Beetroots,
exhibited
degradation
efficiency
87
±
0.5%
kinetic
rate
constant
0.007
min
−1
.
planes
also
examined
to
determine
specific
orientation
is
linked
production
oxygen
vacancies
ZnO,
which
enhances
efficiency.
Furthermore,
increase
effectiveness
can
be
attributed
improved
light
absorption
inter-band
gap
states
charge
transfer.
Materials Today Communications,
Journal Year:
2022,
Volume and Issue:
33, P. 104747 - 104747
Published: Oct. 22, 2022
Nanobiotechnology
has
recently
gained
prominence
as
a
fundamental
branch
of
modern
science
and
novel
epoch
in
the
field
material
researches.
Due
to
wide
range
applications
it
attracts
attention
many
scientists
from
all
over
world.
Bionanomaterials
are
prepared
using
variety
physical,
chemical,
biological
techniques
methods.
Many
different
metal
oxide
nanoparticles
reported
be
produced
by
systems,
including
bacteria,
fungi,
actinomycetes,
yeasts,
viruses,
plants.
Among
them,
biocompatible
zinc
(ZnO
NPs),
obtained
through
biosynthesis
with
aid
plant-derived
materials,
appears
highly
successful
way
create
fast,
clean,
non-toxic,
environmentally
friendly
platform
for
production
application
these
bionanomaterials.
This
review
focuses
on
plant
extract-derived
ZnO
NPs
synthesis,
special
emphasis
recent
advances
nanomaterials.
Micromachines,
Journal Year:
2023,
Volume and Issue:
14(5), P. 928 - 928
Published: April 25, 2023
The
biosynthesis
of
algal-based
zinc
oxide
(ZnO)
nanoparticles
has
shown
several
advantages
over
traditional
physico-chemical
methods,
such
as
lower
cost,
less
toxicity,
and
greater
sustainability.
In
the
current
study,
bioactive
molecules
present
in
Spirogyra
hyalina
extract
were
exploited
for
biofabrication
capping
ZnO
NPs,
using
acetate
dihydrate
nitrate
hexahydrate
precursors.
newly
biosynthesized
NPs
characterized
structural
optical
changes
through
UV-Vis
spectroscopy,
Fourier
transform
infrared
spectroscopy
(FT-IR),
X-ray
diffraction
(XRD),
scanning
electron
microscopy
(SEM),
energy
dispersive
(EDX).
A
color
change
reaction
mixture
from
light
yellow
to
white
indicated
successful
NPs.
absorption
spectrum
peaks
at
358
nm
(from
acetate)
363
nitrate)
confirmed
that
caused
by
a
blue
shift
near
band
edges.
extremely
crystalline
hexagonal
Wurtzite
structure
was
XRD.
involvement
metabolites
algae
bioreduction
demonstrated
FTIR
investigation.
SEM
results
revealed
spherical-shaped
addition
this,
antibacterial
antioxidant
activity
investigated.
showed
remarkable
efficacy
against
both
Gram-positive
Gram-negative
bacteria.
DPPH
test
strong
Water,
Journal Year:
2023,
Volume and Issue:
15(12), P. 2275 - 2275
Published: June 17, 2023
ZnO
is
a
semiconductor
material
that
has
important
physical
and
chemical
properties,
which
are
frequently
significantly
enhanced
by
the
addition
of
impurities,
such
as
doping.
A
study
structural
properties
pristine
functionalized
(i.e.,
doped
with
Antimony
Tungsten)
nanoparticles
been
conducted
for
photocatalyst-based
degradation
methylene
blue
(MB)
dye
under
both
Ultraviolet
(UV)
solar
light.
Authors
have
used
1%
concentration
dopant
doping
purposes.
The
synthesized
materials
were
characterized
analysis,
functional
group
identification,
spectroscopic
measurements,
morphological
examination
using
X-ray
diffraction
(XRD),
Fourier
transform-infrared
(FTIR),
UV-Vis
spectroscopy
(UV-Vis),
Field
emission
scanning
electron
microscope
(FESEM)
techniques.
XRD
analysis
confirmed
synthesized-doped
retained
wurtzite
hexagonal
structure
purity
99%.
Transmission
(TEM)
data
reveals
average
size
pure
ZnO-NPs
was
found
to
be
7
nm;
after
increased
18
nm
9.55
nm,
respectively,
ZnO-W
ZnO-Sb.
As
per
FESEM
results,
minor
changes
observed
Differential
reflectance
UV-DRS
revealed
confirmation
antimony
tungsten,
exhibited
shift.
decrease
in
band-gap
on
makes
more
efficient
photocatalytic
applications.
efficiency
catalysts
(PCD)
analyzed
UV
irradiation.
This
effect
pH,
nano-photocatalyst
dose,
initial
(ICD)
PCD
MB.
obtained
analytical
results
showed
ideal
conditions
MB
follows:
pH
=
9,
quantity
300
mg/L,
an
dose
10
ppm.
These
lead
about
91%
ZnO-Sb
exposure
radiation.
reusability
also
stability
nano-photocatalysts.
current
research
may
pave
way
removal
hazardous
dyes
from
wastewater
discharged
many
industries.
