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.
Nanomaterials,
Journal Year:
2022,
Volume and Issue:
12(18), P. 3226 - 3226
Published: Sept. 16, 2022
Nanomaterials
are
materials
with
one
or
more
nanoscale
dimensions
(internal
external)
(i.e.,
1
to
100
nm).
The
nanomaterial
shape,
size,
porosity,
surface
chemistry,
and
composition
controlled
at
the
nanoscale,
this
offers
interesting
properties
compared
bulk
materials.
This
review
describes
how
nanomaterials
classified,
their
fabrication,
functionalization
techniques,
growth-controlled
mechanisms.
First,
history
of
is
summarized
then
different
classification
methods,
based
on
dimensionality
(0–3D),
(carbon,
inorganic,
organic,
hybrids),
origin
(natural,
incidental,
engineered,
bioinspired),
crystal
phase
(single
phase,
multiphase),
dispersion
state
(dispersed
aggregated),
presented.
Then,
synthesis
methods
discussed
classified
in
function
starting
material
(bottom-up
top-down),
reaction
(gas,
plasma,
liquid,
solid),
nature
dispersing
forces
(mechanical,
physical,
chemical,
physicochemical,
biological).
Finally,
challenges
synthesizing
for
research
commercial
use
highlighted.
Nanomaterials,
Journal Year:
2022,
Volume and Issue:
12(17), P. 3066 - 3066
Published: Sept. 3, 2022
Zinc
oxide
nanoparticles
(ZnO-NPs)
have
piqued
the
curiosity
of
researchers
all
over
world
due
to
their
extensive
biological
activity.
They
are
less
toxic
and
biodegradable
with
capacity
greatly
boost
pharmacophore
bioactivity.
ZnO-NPs
most
extensively
used
metal
in
electronic
optoelectronics
because
distinctive
optical
chemical
properties
which
can
be
readily
modified
by
altering
morphology
wide
bandgap.
The
biosynthesis
using
extracts
therapeutic
plants,
fungi,
bacteria,
algae,
etc.,
improves
stability
biocompatibility
many
settings,
its
biofabrication
alters
physiochemical
behavior,
contributing
potency.
As
such,
as
an
effective
nanocarrier
for
conventional
drugs
cost-effectiveness
benefits
being
biocompatible.
This
article
covers
a
comprehensive
review
different
synthesis
approaches
including
physical,
chemical,
biochemical,
green
techniques,
also
emphasizes
biopotency
through
antibacterial,
antifungal,
anticancer,
anti-inflammatory,
antidiabetic,
antioxidant,
antiviral,
wound
healing,
cardioprotective
Green
from
fungus
is
given
special
attention,
particular
emphasis
on
extraction
precursors
reaction
conditions,
characterization
surface
particles.
Nanomaterials,
Journal Year:
2022,
Volume and Issue:
12(4), P. 673 - 673
Published: Feb. 17, 2022
The
key
pathways
for
synthesizing
nanoparticles
are
physical
and
chemical,
usually
expensive
possibly
hazardous
to
the
environment.
In
recent
past,
evaluation
of
green
chemistry
or
biological
techniques
metal
from
plant
extracts
has
drawn
attention
many
researchers.
literature
on
production
using
various
metals
(i.e.,
gold,
silver,
zinc,
titanium
palladium)
is
discussed
in
this
study.
generalized
mechanism
nanoparticle
synthesis
involves
reduction,
stabilization,
nucleation,
aggregation
capping,
followed
by
characterization.
During
biosynthesis,
major
difficulties
often
faced
maintaining
structure,
size
yield
particles
can
be
solved
monitoring
development
parameters
such
as
temperature,
pH
reaction
period.
To
establish
a
widely
accepted
approach,
researchers
must
first
explore
actual
process
underlying
plant-assisted
its
action
others.
NPs
gaining
owing
facilitation
alternative,
sustainable,
safer,
less
toxic
environment-friendly
approaches.
Thus,
nanotechnology
extract
opens
up
new
possibilities
novel
with
desirable
characteristics
required
developing
biosensors,
biomedicine,
cosmetics
nano-biotechnology,
electrochemical,
catalytic,
antibacterial,
electronics,
sensing
other
applications.
Applied Surface Science Advances,
Journal Year:
2022,
Volume and Issue:
11, P. 100314 - 100314
Published: Oct. 1, 2022
Organic
pollutants
in
industrial
waste
must
be
handled
with
viable
and
eco-friendly
approaches.
In
particular,
releasing
toxic
effluents
like
dyes
into
the
environment
pollutes
water
bodies,
causing
fatal
diseases
humans
is
hazardous
to
aquatic
life.
It
necessitates
removal
of
effluent
before
being
discharged
bodies.
The
photocatalytic
degradation
method
using
metal
oxide
nanoparticles
preferred
choice
amongst
various
dye
remediation
strategies.
However,
state-of-the-art
nanoparticle-based
involves
developing
non-toxic,
economic,
oxides
green
chemistry.
Plant-mediated
ZnO-based
nanoplatforms
exhibited
substantial
properties,
non-toxicity,
biocompatibility,
cost-effectiveness,
possessing
potential
replace
conventional
This
review
focuses
on
development
performance
synthesized
ZnO
towards
degrading
for
wastewater
remediation.
comprehensively
summarizes
nanoparticle
fabrication
from
plant
extracts
(like
leaves,
seeds,
juice,
fruits),
illustrates
their
efficacies,
details
mechanism.
aims
serve
as
a
fundamental
structure
guide
future
research
treatment,
where
attributes
chemistry
are
prerequisites.
OpenNano,
Journal Year:
2022,
Volume and Issue:
8, P. 100077 - 100077
Published: Aug. 28, 2022
Green
synthesis
approaches
of
metal
nanoparticles
and
oxide
from
plant
extracts
have
become
a
focus
research
attention
in
an
era
environmentally
friendly
development
due
to
the
simplicity,
low
cost,
benefits
environmental
sustainability
compared
chemical
physical
routes.
This
current
review
article
introduces
data
85
selected
articles
that
were
synthesized
ZnO
NPs
Ag
using
different
parts
(such
as
leaves,
fruits,
flowers,
stems,
bark,
rhizomes,
roots,
seeds),
with
specific
on
their
biomedical
applications
are
40
antibacterial
properties
mechanism
action
.in
addition
anticancer
potential
(in
vitro)
at
time
or
dose-independent
MTT
assay
5
studies
vivo).
Several
used
model
cell
lines
exhibit
cytotoxicity
ZnONPs
AgNPs.
Different
proved
particle
size
shape
is
significant
factor
indicates
antimicrobial
effectiveness
NPs.
Our
results
showed
Ag-NPs
display
excellent
for
both
metal/metal
biocompatibility.
Scientific Reports,
Journal Year:
2023,
Volume and Issue:
13(1)
Published: Aug. 28, 2023
In
recent
ages,
green
nanotechnology
has
gained
attraction
in
the
synthesis
of
metallic
nanoparticles
due
to
their
cost-effectiveness,
simple
preparation
steps,
and
environmentally-friendly.
present
study,
copper
oxide
(CuO
NPs)
were
prepared
using
Parthenium
hysterophorus
whole
plant
aqueous
extract
as
a
reducing,
stabilizing,
capping
agent.
The
CuO
NPs
characterized
via
UV-Vis
Spectroscopy,
Fourier
Transform
Infrared
Spectroscopy
(FTIR),
powder
X-Ray
Diffraction
(XRD),
Scanning
Electron
Microscopy
(SEM),
Transmission
(TEM),
Dynamic
Light
Scattering
(DLS).
spectra
showed
surface
plasmonic
resonance
band
occur
at
340
nm.
FTIR
analysis
revealed
presence
secondary
metabolites
on
NPs,
with
characteristic
Cu-O
stretching
being
identified
522
cm