IntechOpen eBooks,
Journal Year:
2024,
Volume and Issue:
unknown
Published: April 30, 2024
Like
many
other
textile
industries,
batik
requires
a
lot
of
water,
and
its
use
different
dyes
chemicals
accounts
for
most
the
water
pollution
(17–20%).
It
can
reduce
light
penetration,
which
in
turn
may
decrease
photosynthetic
activity,
it
also
have
an
impact
on
quantity
oxygen
available
biodegradation
aquatic
microbes.
Many
dyes,
including
diazo
(-N〓N-),
direct,
basic
are
challenging
to
work
with
using
standard
techniques,
byproducts
occasionally
be
quite
hazardous.
Photocatalysis
various
semiconductor
materials
has
been
focus
investigations
recent
years
wastewater
treatment
application.
Among
semiconductors,
because
strong
photocatalytic
outstanding
stability,
lack
toxicity,
affordability,
TiO2
is
still
extensively
used
photocatalyst.
When
catalyst
(TiO2)
exposed
ultraviolet
(UV)
light,
hydroxyl
radicals
(•OH)
produced
UV/TiO2
oxidation
process.
Organic
therefore
mineralize
into
CO2,
H2O,
inorganic
components.
In
this
chapter
application
continuous
tubular
photoreactor
nanoparticles
as
Batik
reviewed.
International Journal of Phytoremediation,
Journal Year:
2025,
Volume and Issue:
unknown, P. 1 - 10
Published: Jan. 9, 2025
This
study
introduces
a
sustainable
biological
approach
for
synthesizing
silver
nanoparticles
(AgNPs)
using
Conocarpus
seeds,
aimed
at
improving
the
adsorption
and
photocatalytic
degradation
of
methylene
blue
(MB)
in
wastewater
treatment.
The
efficiency
AgNPs,
synthesized
under
varying
concentrations
nitrate
(AgNO3)
pH
levels,
was
evaluated,
together
with
effectiveness
reactor.
samples
were
characterized
scanning
electron
microscopy
(SEM),
thermogravimetric
analysis
(TGA),
Fourier-transform
infrared
(FT–IR)
spectroscopy,
atomic
force
(AFM).
Results
showed
that
MB
occurred
quickly
within
first
50
min,
achieving
99.60%
removal
via
optimal
conditions
(pH
=
3,
1
g
sample)
after
h.
maximum
capacity
reached
49.80
mg·g−1.
Furthermore,
AgNPs
demonstrated
significant
rate
99.76%
2
h
UV
light,
highlighting
synergistic
effects
enhancing
both
photocatalysis.
not
only
accentuates
potential
seeds
as
an
eco-friendly
precursor
AgNP
synthesis
but
also
highlights
applicability
Heliyon,
Journal Year:
2025,
Volume and Issue:
11(4), P. e42557 - e42557
Published: Feb. 1, 2025
Highlights•Green
ZnO
nanoparticles
were
synthesized
using
hydro-alcoholic
extract
of
rose
petals.•ZnO
confirmed
by
FTIR,
XRD,
UV
visible,
SEM
and
EDX.•Synthesized
Nano
zinc
oxide
showed
photocatalyst
properties
against
methylene
blue.•Nano
anti-diabetic,
anti-Alzheimer,
antibacterial
antioxidant
effects.•Biological
effects
Green
found
to
be
superior
those
their
synthetic
counterparts.AbstractGreen
synthesis,
an
approach
that
has
gained
widespread
recognition
in
recent
years
due
environmental
health
concerns,
was
employed
synthesize
green
(G-ZnO
NPs)
a
derived
from
dried
damask
petals.
The
X-ray
diffractometer,
UV-visible,
Fourier
transform
infrared
spectrometry.
A
morphological
examination
with
field
emission
scanning
electron
microscope
revealed
the
G-ZnO
NPs
had
diameter
ranging
44.66
83.74
nm
purity
93.2%.
Furthermore,
antioxidant,
photocatalytic,
antimicrobial,
anti-diabetic
investigated
compared
two
commercial
different
sizes
(C-ZnO
NPs1
(10-30
nm)
C-ZnO
NPs2
(50-60
nm)).
demonstrated
highest
activity
(46.49%).
In
terms
photocatalytic
blue,
exhibited
higher
degradation
rate
(61%)
than
(53.65
25.63%).
ability
inhibit
growth
bacteria
Escherichia
coli
Staphylococcus
aureus
displayed
inhibition
bacterial
for
both
strains.
Finally,
inhibitory
effect
on
α-glucosidase
acetylcholinesterase
enzymes
examined,
revealing
significant
inhibition.
(600
μg/ml)
stronger
enzymes.Graphical
abstract
