Chemistry and Ecology,
Journal Year:
2024,
Volume and Issue:
unknown, P. 1 - 37
Published: Nov. 12, 2024
This
comprehensive
review
explores
synthesis
methodologies
for
ZnO
nanostructures,
emphasising
green
and
doping
techniques.
Researchers,
driven
by
environmental
sustainability,
have
utilised
various
bio-reducing
agents
in
synthesising
both
pristine
doped
nanostructures.
The
study
delves
into
the
involvement
of
these
structures
photo-assisted
degradation
organic
pollutants,
showcasing
pivotal
role
green-synthesised
its
derivatives
photocatalysis.
meticulously
details
alterations
induced
dopants
parent
structure,
highlighting
their
potential
to
enhance
dye
efficiency.
Mechanisms
underlying
approach
are
elucidated,
exploring
interplay
between
surface
reactions,
photo
energy,
charge
carriers,
energy
band
structures.
Additionally,
synergistic
effects
on
nanostructures
when
exposed
light
outlined,
impacting
pollutants
such
as
dyes,
antibiotic
effluents,
solvents,
Polycyclic
Aromatic
Hydrocarbons
(PAHs).
Molecules,
Journal Year:
2025,
Volume and Issue:
30(3), P. 684 - 684
Published: Feb. 4, 2025
The
fundamental
principle
of
Fourier
Transform
Infrared
(FTIR)
spectroscopy
is
based
on
the
vibration
and
rotation
atoms,
it
has
become
a
universal
widely
used
spectral
methodology
for
detection
internal
molecular
structures
in
diverse
range
fields.
A
considerable
number
review
articles
pertaining
to
applications
FTIR
have
been
published
recent
years.
Nevertheless,
comprehensive
summary
application
nanoparticles’
(NPs’)
green
synthesis
yet
be
presented.
In
present
paper,
we
propose
series
case
studies
that
demonstrate
analysis
metal
oxide
NPs
synthesized
using
processes.
Furthermore,
presented
position
functional
group
bands
spectra
are
responsible
reduction,
capping
stabilization
NPs.
this
review,
explore
advantages
limitations
methodologies
overcoming
these
challenges.
We
also
potential
solutions
complex
spectra.
intended
serve
as
compendium
information
researchers
engaged
field
NPs,
utilizing
research
tool.
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.
Water,
Journal Year:
2025,
Volume and Issue:
17(2), P. 196 - 196
Published: Jan. 13, 2025
In
this
research,
a
tungsten
oxide
was
prepared
via
green
(biogenic)
synthesis
route
where
sodium
tungstate
dihydrate
and
Punica
granatum
peel
extract
were
used
as
precursor
reducing/capping
agent,
respectively.
The
characterization
of
the
performed
through
various
spectroscopic
microscopic
techniques.
results
revealed
preparation
highly
crystalline
nanorod-shaped
(length
=
123
nm
width
31.3
nm)
with
probable
chemical
formula
W5O14.
Various
functional
groups
on
W5O14
surface
also
reported.
nanorods
further
for
removal
Bismarck
Brown
R
(BBR)
dye
from
water
in
batch
manner.
By
varying
dose
(0.5–3.0
g
L−1),
BBR
solution
pH
(2−10),
contact
time
(15–120
min),
concentration
(10–60
mg
temperature
(30,
40,
50
°C),
optimized
condition
maximum
adsorption
efficiency
measured.
that
2.0
L−1
amount
to
remove
~98%
its
10
at
30
°C
7.0
pH.
temperature-dependent
data
fitted
different
types
non-linear
isotherm
models
(e.g.,
Langmuir
Freundlich)
assess
potential
mechanisms
relation
impacts.
synthesized
nano-adsorbent
fits
well
Freundlich
model
capacity
17.84
g−1.
Pseudo-first-order,
pseudo-second-order,
Elovich
kinetic
study
kinetics.
onto
follows
pseudo-second-order
rates.
present
is
governed
by
physico-chemical
predominant
interactions.
Energies,
Journal Year:
2024,
Volume and Issue:
17(16), P. 4126 - 4126
Published: Aug. 19, 2024
In
modern
society
where
fossil
fuel
prices
are
increasing
and
environmental
issues
becoming
more
severe,
biodiesel,
as
a
new
type
of
clean
fuel,
is
receiving
attention.
Biodiesel
has
the
advantages
renewability,
friendliness,
good
properties,
demonstrating
broad
application
prospects.
However,
use
biodiesel
also
faces
some
challenges,
such
higher
density
kinematic
viscosity,
lower
calorific
value,
etc.
The
nanoparticles
in
engines
helps
to
achieve
goal
fuel.
terms
characteristics,
increase
cetane
flash
point
improving
combustion
efficiency
safety,
but
may
affect
combustion.
can
promote
micro
explosions
secondary
atomization
improve
cylinder
pressure,
heat
release
rate,
brake
thermal
while
reducing
consumption.
Nanoparticles
reduce
HC
CO
emissions,
through
oxygen
reaction
area,
incomplete
products.
On
contrary,
CO2
emissions
because
better
conditions
oxidation
reactions.
For
NOX
temperature
others
emissions.
Comparison
shows
that
all
offer
varying
degrees
improvement
engine
performance
provided
by
TiO2
significantly
than
other
nanoparticles.
future,
synergistic
effect
multiple
should
be
explored
further
achieving
effects
cannot
achieved
single
nanoparticle.
Hybrid Advances,
Journal Year:
2024,
Volume and Issue:
6, P. 100233 - 100233
Published: June 26, 2024
This
state-of-the
art
review
is
designed
to
state
the
competence
of
fullerene
nanostructures
in
optoelectronic
devices.
Fullerene
molecules
own
valuable
structural,
electronic,
optical,
electrical,
and
physical
properties
be
employed
optoelectronics
device
sector.
Especially,
modification
nanocomposite
formation
led
high
performance
light
emitting
diodes,
optical
sensors,
photovoltaics
systems.
Combination
conjugated
polymers/molecules
with
has
found
further
enhance
efficacy
towards
these
In
form,
have
been
known
develop
conjugation
conducting
polymers
for
better
charge,
hole,
or
electron
transference
leading
assistances.
Consequently,
like
poly(3-hexylthiophene),
poly(3,4-ethylenedioxythiophene),
poly(3-hexylthiophene-2,5-diyl),
polystyrene
sulfonate,
polycyclopenta-dithiophene-benzothiadiazole,
poly(2-methoxy-5-(2′-ethylhexyloxy)-1,4-phenylenevinylene),
4,4′-bis[(p-trichlorosilylpropylphenyl)phenylamino]
biphenyl,
etc.
reinforced
utilized.
Polymers
grafted
fullerenes
such
as
[6,6]-phenyl
C61-butyric
acid
methyl
ester
[6,6]-phenyl-C61-butyric
hexyl
also
recognized.
addition,
non-conducting
poly(methyl
methacrylate)
was
exploited.
Mostly,
C60
C70
preferred
nanofiller
assemblies.
Effectiveness
nanomaterials
observed
luminescent
solar
cells
(bulk
heterojunction/polymer/perovskite),
sensors
(photo-/organic/bacterial
sensing).
Nevertheless,
designs
need
comprehensively
investigated
by
overcoming
underlying
working
mechanism,
fabrication,
challenges
related
fields.
