Advanced Composite Materials,
Год журнала:
2024,
Номер
unknown, С. 1 - 20
Опубликована: Июнь 23, 2024
The
ZnO:CuO
nanocomposite
photocatalytic
activity
was
experimentally
and
numerically
investigated.
This
exhibits
stability
durability
during
photodegradation.
with
a
ZnO/CuO
ratio
of
2.0
synthesized
by
microwave-assisted
hydrothermal
at
70
°C
in
10
minutes
photocurrent
density
over
1.0
mA.cm−2
for
the
ZnO
layer
an
optimal
degradation
efficiency
86.4
%.
efficacy
depends
on
current
generated
rather
than
total
photo-induced
current.
can
be
promising
photocatalyst
because
its
enhanced
light
absorption
effective
suppression
photogenerated
electron-hole
pair
recombination.
RSC Advances,
Год журнала:
2024,
Номер
14(19), С. 13505 - 13520
Опубликована: Янв. 1, 2024
The
feasibility
of
utilizing
the
mud
solid
waste
produced
during
sugar
refining
as
a
cost-effective
and
environmentally
friendly
alternative
for
removal
methylene
blue
Congo
red
from
wastewater
is
presented.
International Journal of Biological Macromolecules,
Год журнала:
2025,
Номер
unknown, С. 141753 - 141753
Опубликована: Март 1, 2025
Removal
of
azo
dyes
from
aquatic
environments
represents
a
global
challenge.
Herein,
by
utilizing
the
waste
mandarin
peels
as
cellulose
source
(MP500),
bifunctional
adsorbent-photocatalyst,
TiO2@MP500,
has
been
prepared
via
one-pot
hydrothermal
synthesis.
Taking
advantage
this
dual
role,
remediation
methyl
orange
(MO)
successfully
addressed.
Characterization
tools
corroborated
anchoring
TiO2
and
successful
synthesis
TiO2@MP500.
SEM/EDX/TEM
analyses
confirmed
formation
nanoparticles
on
carbonaceous
surface.
A
substantial
increase
in
BET
surface
area
following
impregnation
was
perceived
(184.61
m2/g
case
3
%TiO2@MP500).
Similarly,
thermal
stability
developed
composite
notably
improved
reflected
thermogravimetric
analysis.
XRD
analysis
existence
layer
with
anatase
phase
TiO2.
Optimization
adsorbent-photocatalyst
performance
approached
using
Box-Behnken
design.
Five
factors
were
premeditated,
pH
MO
solution,
adsorbent
dose,
reaction
time,
concentration
TiO2,
[MO].
maximum
sorption
capacity
104.2
mg/g
reckoned,
pseudo-second-order
isotherm.
Furthermore,
%TiO2@MP500
achieved
decolorization
efficiency
98.87
%
~30
min.
The
nanocomposite
effectively
revived
could
be
exploited
for
6
cycles,
bolstering
90.91
%.
The
unique
structure
of
the
α-Fe
2
O
3
/SiO
composite
aerogels
enhanced
utilization
visible
light
and
adsorption
organic
pollutants,
accelerated
electron
transfer
prolonged
recombination
hole
pairs.
The Canadian Journal of Chemical Engineering,
Год журнала:
2025,
Номер
unknown
Опубликована: Май 8, 2025
Abstract
Creating
a
highly
dispersed
ZnO
is
one
strategy
to
improve
the
photocatalytic
activity
of
this
material.
However,
pure
always
presents
in
an
agglomerate
state.
The
current
study
aimed
dispersibility
by
adding
SiO
2
particle
through
ultrasonication.
amount
crucial
maintain
good
dispersibility.
impact
silica
ratio
and
ultrasonication
time
on
morphology
performance
were
studied
obtain
nanocomposite
with
Composites
prepared
mass
ratios
ranging
from
0.25%
1.15%
exposed
for
10–240
min.
Characterization
methods,
including
x‐ray
diffraction
(XRD),
Fourier
transform
infrared
(FTIR),
dynamic
light
scattering
(DLS),
transmission
electron
microscopy
(TEM),
revealed
that
resulted
smaller,
uniformly
distributed
particles.
Longer
enhanced
cavitation
effects,
improving
dispersion
reducing
agglomeration.
Photocatalytic
tests
showed
composites
lower
optimized
achieved
96.5%
methylene
blue
(MB)
degradation
within
60
min
sunlight
exposure
(
k
=
0.0200
−1
),
linked
increased
surface
area
dispersion.
Photoluminescence
(PL)
analysis
confirmed
produced
highest
PL
intensity,
correlating
superior
activity.
This
emphasizes
importance
optimizing
designing
efficient
materials.
