Green synthesis of ZnO nanoparticles using Justicia adhatoda for photocatalytic degradation of malachite green and reduction of 4-nitrophenol
M. B. Mahajan,
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Sanjeev Kumar,
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Jyoti Gaur
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et al.
RSC Advances,
Journal Year:
2025,
Volume and Issue:
15(4), P. 2958 - 2980
Published: Jan. 1, 2025
Achieving
the
smallest
crystallite/particle
size
of
zinc
oxide
nanoparticles
(ZnO
NPs)
reported
to
date,
measuring
5.2/12.41
nm
with
Justicia
adhatoda
(J.
adhatoda)
leaf
extract,
this
study
introduces
a
facile
green
synthesis.
Utilizing
aqueous
J.
extract
as
both
reducing
and
stabilizing
agent,
method
leverages
plant's
rich
phytochemical
composition
produce
highly
crystalline
morphologically
controlled
ZnO
NPs.
This
precise
particle
control
highlights
effectiveness
synthesis
process
in
morphological
tuning.
The
synthesized
NPs
were
thoroughly
characterized
using
XRD,
UV-vis
spectroscopy,
FTIR,
FESEM,
HRTEM,
which
collectively
revealed
superior
crystallinity,
morphology,
unique
surface
properties
conferred
by
bio-capping.
photocatalytic
performance
these
biogenic
was
evaluated
for
degradation
two
model
pollutants:
malachite
(MG),
synthetic
dye,
4-nitrophenol
(4-NP),
toxic
organic
compound.
exhibited
exceptional
efficiency,
achieving
99.8%
MG
within
180
minutes
demonstrating
rapid
reduction
4-NP
4-aminophenol
reaction
rate
constant
0.245
min-1
under
UV
sunlight
irradiation.
Mechanistic
studies
attributed
high
reactive
oxygen
species
(ROS)
generation
electron-hole
pair
interactions,
supported
improved
charge
separation
area.
work
not
only
establishes
potential
adhatoda-mediated
addressing
persistent
pollutants
but
also
sets
benchmark
size-controlled
By
delivering
scalable
eco-friendly
water
remediation
technologies,
advances
nanotechnology.
Language: Английский
Advances in nanoarchitectonics of metal-organic frameworks and metal-/metalloid-containing nanomaterials for antibacterial and antifungal applications
Applied Materials Today,
Journal Year:
2024,
Volume and Issue:
40, P. 102335 - 102335
Published: July 27, 2024
Language: Английский
Review on phyto-extract methodologies for procuring ZnO NPs and its pharmacological functionalities
Process Biochemistry,
Journal Year:
2024,
Volume and Issue:
147, P. 186 - 212
Published: Aug. 25, 2024
Language: Английский
Green synthesis of ZnO nanoparticles and biological applications as broad-spectrum bactericidal, antibiofilm effects and biocompatibility studies on Zebrafish embryo
Inorganic Chemistry Communications,
Journal Year:
2024,
Volume and Issue:
169, P. 113049 - 113049
Published: Aug. 26, 2024
Language: Английский
Biogenic Zinc Oxide Nanoparticles as a Promising Antibacterial Agent: Synthesis and Characterization
International Journal of Molecular Sciences,
Journal Year:
2024,
Volume and Issue:
25(17), P. 9500 - 9500
Published: Aug. 31, 2024
Nanotechnology
has
gained
popularity
in
recent
years
due
to
its
wide-ranging
applications
within
the
scientific
community.
The
three
main
methods
for
synthesizing
nanoparticles
are
physical,
chemical,
and
biological.
However,
adverse
effects
associated
with
physical
chemical
have
led
a
growing
interest
biological
methods.
Interestingly,
green
synthesis
using
plants
prominence
developing
new
treatments
bacterial
infections.
Zinc
oxide
(ZnO
NPs)
produced
environmentally
friendly
more
biocompatible
potential
as
antibacterial
agents
biomedical
field.
As
result,
this
review
discusses
of
ZnO
NPs,
factors
influencing
optimal
synthesis,
characterization
techniques,
activity
some
plant-mediated
NPs.
It
also
provides
comprehensive
analytical
exploration
NP
biosynthesis,
role
phytochemical
compounds
reducing
stabilizing
agents,
mechanism
action
their
properties
further
highlights
challenges
prospects
innovative
research
area.
Language: Английский
Green Preparation of ZnO Nanoparticles Using Citrus aurantium L. Extract for Dye Adsorption, Antibacterial, and Antioxidant Activities
Xitao Yang,
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Liangliang Liu,
No information about this author
Chenxiao Chen
No information about this author
et al.
Separations,
Journal Year:
2025,
Volume and Issue:
12(2), P. 18 - 18
Published: Jan. 21, 2025
In
this
study,
ZnO
nanoparticles
(ZnO
NPs)
were
synthesized
using
a
green
method
employing
fresh
Citrus
aurantium
L.
aqueous
extract
(CA)
as
reducing
agent.
After
preparation,
the
NPs
characterized
by
transmission
electron
microscopy
(TEM),
scanning
(SEM),
energy-dispersive
X-ray
analysis
(EDAX),
diffraction
(XRD),
and
infrared
spectroscopy
(IR).
The
products
displayed
irregular
particle
shapes
on
nanoscale.
adsorption
ability
of
was
tested
with
amaranth
red
dye,
result
showed
that
it
had
satisfied
capacity
for
red.
data
followed
pseudo-second-order
model
Langmuir
model,
which
indicated
process
controlled
chemical
occurred
homogeneously
surface
absorbents.
addition,
prepared
also
exhibited
antibacterial
abilities
against
Staphylococcus
aureus
Escherichia
coli
bacteria;
antioxidant
activities
observed
in
2-2-diphenyl-1-picrylhydrazyl
(DPPH)
2,2′-azino-di(3-ethylbenzthiazoline
sulphonate)
(ABTS)
radicals
scavenging
assays
ferric
ion
power
(FRAP)
assay,
better
than
those
traditional
except
FRAP
assay.
Based
these
findings,
fabricated
CA
promising
environmental
remediation
dye
wastewater.
Language: Английский
Green Synthesis and Biological Activities of Zinc Oxide Nanoparticles using Ampelocissus martini Rhizome Extract
ChemistrySelect,
Journal Year:
2024,
Volume and Issue:
9(6)
Published: Feb. 6, 2024
Abstract
Zinc
oxide
nanoparticles
(ZnO
NPs)
were
prepared
by
co‐precipitation
of
zinc
acetate
with
Ampelocissus
martini
rhizome
extract
(AM).
Four
conformations
ZnO
NPs
obtained
conjoined
precipitation
sodium
hydroxide,
dihydrate,
and
AM:
NPs‐01,
NPs‐02,
NPs‐03,
NPs‐04.
The
structure
was
confirmed
X‐Ray
diffraction
(XRD).
Fourier
transform
infrared
(FTIR)
analysis
conducted
to
identify
functional
groups.
formation
morphology
the
synthesized
field
emission
scanning
electron
microscopy
(FE‐SEM)
Energy
dispersive
X‐ray
spectroscopy
(EDS)
mapping,
transmission
(TEM).
Free
radical
scavenging
activity
determined
2,2‐diphenyl‐1‐picryl‐hydazyl‐hydrate
(DPPH)
2,2
/
‐azino‐bis‐(3‐ethylbenzothi‐azoline‐6‐sulfonic
acid
(ABTS)
assays.
Antibacterial
examined
disc
diffusion
together
minimal
inhibitory
concentration
(MIC)
bactericidal
(MBC).
NPs‐04
showed
highest
inhibition
in
DPPH
ABTS
assays
active
against
E.
coli
S.
aureus
MICs=10
mg/mL
5
mg/mL,
respectively.
These
findings
indicated
that
could
be
utilized
for
several
medicinal
applications.
Language: Английский
A Role of Biosynthesized Zinc Oxide Nanoparticles (ZnO NPs) for Enhancing Seed Quality: A Review
Nitesh Janardhan Wankhade,
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V. R. Shelar,
No information about this author
Bharat M. Bhalerao
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et al.
International Journal of Environment and Climate Change,
Journal Year:
2024,
Volume and Issue:
14(4), P. 313 - 329
Published: April 15, 2024
Abiotic
and
biotic
stresses
impact
seed
growth,
resulting
in
economic
losses.
Seeds
are
being
subjected
to
an
increasing
number
of
abiotic
stress
combinations
as
a
result
global
warming
climate
change,
which
has
adverse
effects
on
their
growth
production.
Drought,
flood,
salinity,
heavy
mineral
contamination,
cold,
heat
were
all
found
have
negative
germination.
Because
massive
surface
area-to-volume
ratio,
nanoparticles—microscopic
pieces
with
nanoscale
dimension
ranging
from
1-100
nm—have
exceptional
thermal
conductivity,
catalytic
reactivity,
nonlinear
optical
performance,
chemical
durability.
There
various
methods
for
creating
nanoparticles,
such
chemical,
physical,
biological
ones.
However,
because
dangerous
compounds
used
reducing
agents,
the
physical
procedures
expensive,
complicated,
might
be
hazardous
environment.
The
synthesis
nanoparticles
using
green
approaches
may
easily
scaled
up,
they
also
cost-effective.
superior
qualities,
greenly
coordinated
currently
preferred
over
traditionally
delivered
NPs.
Green
particularly
appealing
due
ability
reduce
nanoparticle
toxicity.
use
vitamins,
amino
acids,
plant
extracts
increased
result.
While
extremely
substances
processes
that
cause
environmental
issues,
capping
agents
essential
nanoparticles.
or
agent
is
expensive.
When
treatment,
can
enhance
germination
well
length,
vigor,
viability,
quality
seedlings.
This
paper
aims
provide
overview
evaluation
zinc
oxide
(ZnO
NPs)
potential
substitute
biosynthesised
improvement.
Language: Английский
Plant-mediated green route to the synthesis of zinc oxide nanoparticles: in vitro antibacterial potential
Journal of the Australian Ceramic Society,
Journal Year:
2024,
Volume and Issue:
unknown
Published: July 30, 2024
Abstract
The
plant-mediated,
sustainable,
facile,
eco-friendly,
and
simple
green
approaches
for
the
fabrication
of
metal
oxide
nanoparticles
(NPs)
have
recently
attracted
ever-increasing
attention
scientific
community.
To
date,
there
has
not
been
any
research
on
synthesis
ZnO-NPs
by
Piper
guineense
(Uziza)
seeds
widely
used
as
a
therapeutic
agent
is
novelty
current
study.
bioaugmented
manufactured
Uziza
seed
extract
using
zinc
acetate
dihydrate
precursor
sodium
hydroxide
with
calcination.
hexagonal/spherical
crystalline
structure
at
high
purely
mean
size
7.39
nm
was
confirmed
via
XRD
SEM
analyses
ZnO-NPs.
A
strong
absorption
peak
about
350
nm,
specific
ZnO-NPs,
observed
UV-visible
spectrometer.
optical
bandgap
estimated
3.58
eV
Kubelka-Munk
formula.
FTIR
findings
indicated
presence
biofunctional
groups
responsible
bioreduction
bulk
to
growth
rates
E.
coli
(ATCC
25,922)
significantly
decreased
exhibited
compared
controls.
This
making
promising
effective
candidates
medical
sectors
environmental
applications.
study
hoped
supply
better
understanding
phytosynthesis
promote
advance
based
plants.
Language: Английский
Green Synthesis, Characterization and Pharmaceutical Applications of Biocompatible Zinc Oxide Nanoparticles Using Heliotropium rariflorum Stocks
Pharmaceuticals,
Journal Year:
2024,
Volume and Issue:
17(11), P. 1457 - 1457
Published: Oct. 31, 2024
Zinc
oxide
nanoparticles
are
safe,
non-toxic,
and
biocompatible.
These
NPs
used
in
food
packaging
materials,
self-cleaning
glass,
ceramics,
deodorants,
sunscreens,
paints,
coatings,
ointments,
lotions,
as
preservatives.
This
study
explored
the
biological
potential
of
ZnO
synthesized
using
Language: Английский