Colorants,
Journal Year:
2025,
Volume and Issue:
4(2), P. 17 - 17
Published: May 7, 2025
This
study
explores
the
photocatalytic
efficiency
of
Zn/Fe/TiO2
catalysts,
synthesized
via
wet
impregnation
method,
for
degrading
food
colorings
Allura
Red
and
Tartrazine
Yellow.
A
22
factorial
design
with
a
central
point
replication
guided
catalyst
synthesis.
Characterization
involved
BET
surface
area
analysis,
SEM-EDX,
XRD,
PZC
determination.
Photocatalytic
tests
were
conducted
in
batch
mode
under
natural
sunlight
10
mg
L−1
coloring
solutions.
Kinetic
modeling
statistical
analysis
performed,
reuse
was
evaluated
artificial
light.
Results
showed
that
low
calcination
temperatures
(200–273
°C)
Zn
loadings
2–10%
led
to
nearly
99%
discoloration
degradation
efficiency.
The
Behnajady–Modirshahla–Ghanbery
kinetic
model
best
described
data,
confirming
significant
impact
both
variables.
optimal
2%Zn/2%Fe/TiO2
calcined
at
200
°C,
while
Yellow,
6%Zn/2%Fe/TiO2
300
°C
most
effective.
Both
catalysts
exhibited
excellent
stability,
maintaining
over
four
cycles.
These
findings
demonstrate
potential
sustainable
wastewater
treatment.
Scientific Reports,
Journal Year:
2025,
Volume and Issue:
15(1)
Published: Jan. 6, 2025
This
study
investigates
the
biosynthesis
of
iron
oxide
nanoparticles
(Fe2O3NPs)
using
cell-free
supernatant
Pseudomonas
fluorescens.
The
synthesized
Fe2O3NPs
were
characterized
through
UV–VIS,
XRD,
FTIR,
FESEM,
EDX,
TEM,
BET,
and
VSM
analyses.
XRD
results
confirmed
that
successfully
EDX
analysis
indicated
accounted
for
89.5%
sample
composition.
Imaging
via
SEM
TEM
revealed
average
diameters
20.43
±
5.38
nm
24.32
5.03
nm,
respectively.
antimicrobial
effects
assessed
against
four
bacterial
strains
fungal
species.
Inhibition
zones
8.35
0.103
mm
8.31
0.128
observed
syringae
Staphylococcus
aureus
at
a
concentration
400
μg
mL−1
Fe2O3NPs.
Antifungal
efficacy
showed
growth
rate
reductions
90.4%
Aspergillus
niger,
71.1%
Monilinia
fructigena,
68.8%
Botrytis
cinerea,
84.2%
Penicillium
expansum,
compared
to
controls.
demonstrated
photocatalytic
degradation
efficiencies
89.93%,
84.81%,
79.71%
methyl
violet,
orange,
methylene
blue,
Also
exhibited
significant
DPPH
free
radical
scavenger
activity
with
an
IC50
value
8.45
0.59
mL−1.
study's
findings
underscored
potential
in
addressing
environmental
pollution
combating
pathogenic
microorganisms.
Journal of Materials Informatics,
Journal Year:
2025,
Volume and Issue:
5(1)
Published: Feb. 12, 2025
Single-atom
catalysts
(SACs)
have
emerged
as
a
research
frontier
in
catalytic
materials,
distinguished
by
their
unique
atom-level
dispersion,
which
significantly
enhances
activity,
selectivity,
and
stability.
SACs
demonstrate
substantial
promise
electrocatalysis
applications,
such
fuel
cells,
CO2
reduction,
hydrogen
production,
due
to
ability
maximize
utilization
of
active
sites.
However,
the
development
efficient
stable
involves
intricate
design
screening
processes.
In
this
work,
artificial
intelligence
(AI),
particularly
machine
learning
(ML)
neural
networks
(NNs),
offers
powerful
tools
for
accelerating
discovery
optimization
SACs.
This
review
systematically
discusses
application
AI
technologies
through
four
key
stages:
(1)
Density
functional
theory
(DFT)
ab
initio
molecular
dynamics
(AIMD)
simulations:
DFT
AIMD
are
used
investigate
mechanisms,
with
high-throughput
applications
expanding
accessible
datasets;
(2)
Regression
models:
ML
regression
models
identify
features
that
influence
performance,
streamlining
selection
promising
materials;
(3)
NNs:
NNs
expedite
known
structural
models,
facilitating
rapid
assessment
potential;
(4)
Generative
adversarial
(GANs):
GANs
enable
prediction
novel
high-performance
tailored
specific
requirements.
work
provides
comprehensive
overview
current
status
insights
recommendations
future
advancements
field.
Heliyon,
Journal Year:
2024,
Volume and Issue:
10(23), P. e40370 - e40370
Published: Nov. 15, 2024
The
incidence
of
water
pollution
in
developing
countries
is
high
due
to
the
lack
regulatory
policies
and
laws
that
protect
bodies
from
anthropogenic
activities
industrial
wastewater.
Industrial
wastewater
contains
significant
amounts
heavy
metals
are
detrimental
human
health,
aquatic
organisms,
ecosystem.
focus
this
review
was
evaluate
sources
treatment
methods
wastewater,
with
an
emphasis
on
technologies,
advantages,
disadvantages,
innovation.
It
observed
conventional
(such
as
flotation,
coagulation/flocculation,
adsorption)
had
shown
promising
results
but
posed
certain
limitations,
such
generation
volumes
sludge,
relatively
low
removal
rates,
inefficiency
treating
metal
concentrations,
sensitivity
varying
pH.
Recent
technologies
like
nanotechnology,
photocatalysis,
electrochemical
coagulation
have
advantages
over
for
removing
metals,
including
higher
improved
energy
efficiency,
greater
selectivity
specific
contaminants.
However,
costs
associated
these
advanced
remain
a
major
drawback.
Therefore,
we
recommend
future
developments
technology
reducing
both
waste
generation.
Desalination and Water Treatment,
Journal Year:
2024,
Volume and Issue:
319, P. 100565 - 100565
Published: June 24, 2024
This
review
delves
into
the
significant
potential
of
Advanced
Oxidation
Processes
(AOPs)
for
tackling
intricate
issues
found
in
treating
petroleum
wastewater.
It
particularly
focuses
on
utilization
processes
like
Fenton
reactions,
Ozonation-based
AOPs,
and
photocatalytic
techniques,
highlighting
their
role
producing
powerful
reactive
oxygen
species
capable
breaking
down
organic
contaminants.
The
also
discusses
recent
advancements
merging
Electro-Fenton
photocatalysis
to
enhance
pollutant
removal
efficiency.
Furthermore,
it
investigates
how
these
methods
are
being
applied
specifically
petrochemical
wastewater
management,
including
innovative
approaches
Fenton,
Photo-
Electro-Fenton,
Photo-catalytic
oxidation,
persulfate
activation
based
AOPs.
Operational
cost
treatment
time,
energy
requirements,
pH
adjustment,
complexity
reactor
setup,
efficiencies
treated
effluent
quality,
by-products
some
challenges
critically
examined.
article
aims
highlight
identify
emerging
challenges,
proposing
a
shift
towards
more
sustainable
effective
strategies
future.
