International Journal of Environmental & Analytical Chemistry,
Journal Year:
2024,
Volume and Issue:
unknown, P. 1 - 25
Published: Dec. 22, 2024
Dye,
a
major
global
pollutant
causing
environmental
and
health
issues,
can
be
effectively
degraded
through
photocatalysis.
This
study
synthesised
bismuth
oxychloride
(BiOCl)
nano-photocatalyst
via
hydrolysis
characterized
it
using
various
analytical
instruments.
The
UV-Vis
absorbance
of
the
displayed
peaks
at
211
nm,
361
688
with
band
gap
3.0
eV,
conduction
minimum
1.97
valence
maximum
4.97
eV.
dynamic
light
scattering
showed
3349
nm
660
while
BiOCl
had
zeta
potential
-17.3
mV
conductivity
0.245
mS/cm.
X-ray
diffraction
exhibited
four
sharp
intensity
11.95º,
25.81º,
32.50º,
33.40º,
average
crystallite
size
was
43.39
scanning
electron
microscope
plate-like
morphology.
achieved
88.21%
degradation
methyl
green
within
60
minutes
under
LED
irradiation
pH
7.5
dye
concentration
6×10−6
mol/L.
photocatalytic
performance,
driven
by
hydroxyl
(•OH)
superoxide
(O2•−)
radicals,
96.55%
mineralization
as
confirmed
COD
analysis.
These
findings
emphasize
for
effective
sustainable
wastewater
remediation
visible
conditions.
ChemistrySelect,
Journal Year:
2025,
Volume and Issue:
10(5)
Published: Jan. 29, 2025
Abstract
The
extensive
use
of
synthetic
dyes
in
a
variety
sectors,
including
textiles,
leather,
food,
and
paints
are
resulted
substantial
environmental
issues
due
to
their
persistence
toxicity
water
bodies.
Moreover,
about
twenty
forty
gallons
is
used
for
two
pounds
fabric
conventional
textile
industries
around
the
globe.
Hence,
it
vital
develop
effective
fast
catalytic
dye
removal
methods
or
devices.
Citrullus
lanatus
rind
primarily
researched
its
from
aqueous
solution.
ZnS
nanocrystals
well
known
photocatalytic
property
remove
dyes.
In
this
research,
extracted
was
investigating
Remazol
Black
dye.
said
increase
heart
rate
cause
eye
problems
humans.
using
green
synthesis
work
focuses
on
goal
contributing
long‐term
successful
treatment
solutions.
generated
were
validated
UV–vis
spectroscopy,
indicating
formation
nanoparticles.
presence
polyphenolic
groups
responsible
reducing
metal
sulfide
nanoparticles
verified
FTIR
spectroscopy.
Transmission
electron
microscopy
(TEM)
research
indicated
that
produced
had
morphology
with
mean
size
roughly
6
nm.
impact
removing
examined,
phenomenal
clearance
efficiency
99.8%
achieved
min.
rapid
decomposition
attributable
chemisorption
process,
demonstrating
honey‐hump‐like
nanocrystal
potential
as
useful
catalysts
ecological
cleanup
purposes.
Construction Materials and Products,
Journal Year:
2025,
Volume and Issue:
8(1), P. 2 - 2
Published: Jan. 17, 2025
Currently,
the
development
of
highly
active
photocatalytic
additives
for
self-cleaning
cement
materials
is
a
topical
direction
building
science.
Mixed
transition
metal
oxides
are
one
effective
types
photocatalysts,
because
they
have
improved
functional
characteristics
compared
to
monometallic
compounds.
The
purpose
this
study
was
establish
effects
synthesis
conditions
on
structure
parameters
and
activity
zinc-titanium
layered
double
hydroxide
(Zn-Ti
LDH)
with
Zn2+/Ti4+
molar
ratio
2/1,
as
well
its
calcination
products
in
form
mixed
MMOs).
It
found
that
mixing
temperature
solutions
precursor
salts
precipitators,
sediment
aging,
were
main
had
greatest
impact
phase
composition
crystallite
size
hydroxide.
research
results
showed
differences
kinetics
photodestruction
methylene
blue
(MB)
solution
under
UV
radiation
presence
Zn-Ti
oxides.
process
involving
MMOs,
corresponding
pseudo-first
order
reaction
kinetic,
proceeded
diffusion
mode
limiting
step
dye
adsorption
surface
photocatalyst.
photodegradation
MB
LDH,
which
more
accurately
described
by
pseudo-second
model,
occurred
kinetic
regime,
where
stage.
zinc
titanium
significantly
higher
their
LDH
precursor.
at
200–500
°C
allowed
achieve
highest
MMO,
due
transformations
occurring
during
thermal
treatment.
decomposition
200–250
resulted
formation
crystalline
oxide
(ZnO),
hexagonal
wurtzite
crystal
ability
effectively
absorb
from
almost
entire
spectral
region.
rise
500
led
an
increase
crystallinity
degree
ZnO.
