Frontiers in Materials,
Год журнала:
2025,
Номер
12
Опубликована: Март 26, 2025
This
study
includes
the
synthesis
of
new
hydrogel
using
pectin,
chitosan,
and
Mo-MOF
(pectin/chitosan
hydrogel).
After
confirming
structure
synthetic
by
Elemental
Analysis
(EA),
Energy-Dispersive
X-ray
Spectroscopy
(EDS),
EDS
mapping,
Fourier-transform
infrared
spectroscopy
(FT-IR),
X-Ray
Diffraction
(XRD),
Brunauer-Emmett-Teller
(BET),
Scanning
Electron
Microscopy
(SEM),
Transmission
(TEM),
its
application
in
wastewater
treatment,
including
absorption
Congo
red
inhibition
pathogenic
bacterial
strains
wastewater,
was
evaluated.
The
factors
affecting
adsorption
red,
such
as
pH,
temperature,
contact
time,
were
studied.
highest
rate
determined
to
be
93%
0.06
g/L
pectin/chitosan
under
conditions
pH
8,
temperature
25°C,
time
90
min.
microbiology
evaluations
hydrogel,
which
performed
against
known
Campylobacter
jejuni
,
Shigella
dysenteriae
Vibrio
cholerae
Yersinia
enterocolitica
Salmonella
enterica
indicated
high
antibacterial
properties,
so,
Minimum
Inhibitory
Concentration
(MIC)
Bactericidal
(MBC)
values
observed
between
4
32
μg/mL
8–64
μg/mL.
diverse
characteristics
can
attributed
physical
chemical
constituent
compounds,
specific
surface
area,
porosity.
Finally,
introduced
a
functional
composition
with
unique
capabilities
controlling
absorbing
dangerous
compounds
for
environmental
purposes.
Results in Engineering,
Год журнала:
2022,
Номер
16, С. 100678 - 100678
Опубликована: Сен. 30, 2022
One
of
the
popular
cationic
dyes
that
is
environmentally
persistent,
toxic,
carcinogenic
and
mutagenic
methylene
blue
(MB)
dye.
It
commonly
applied
as
synthetic
dye
for
dyeing
fabrics
in
clothing
textile
industries
also
papers
leathers.
Sequel
to
magnitude
industrial
usage,
a
large
volume
containing
wastewater
discharged
into
groundwater
surface
water.
At
doses
more
than
5
mk/kg,
monoamine
oxidate
inhibitory
characteristics
MB
can
induce
fatal
serotonin
toxicity
human,
apart
from
being
threat
fauna
aquatic
ecosystem.
Thus,
it
highly
imperative
eliminate
wastewaters.
A
number
different
removal
strategies
have
been
reported
literature
treating
wastewater.
In
this
state-of-the-art
review,
about
240
review
and/or
research
published
articles
on
methods
decontamination
or
were
chosen
evaluation.
This
synthesis
discussed
various
toxicities
linked
The
assessment
elimination
revealed
chemical
(photochemical
non-photochemical)
could
generate
secondary
pollutants
while
biological
are
characterized
with
sensitivity
enzyme
pH.
These
drawbacks
limit
their
full-scale
applications
adsorption
technology
was
found
offer
merits
over
others.
comprehensively
each
these
techniques
gaps
areas
future
highlighted.
Processes,
Год журнала:
2023,
Номер
11(3), С. 807 - 807
Опубликована: Март 8, 2023
The
use
of
dyes
is
widespread
across
almost
all
industries.
Consequently,
these
are
found
in
various
sources
water
and
food
that
humans,
animals,
plants
consume
directly
or
indirectly.
Most
comprised
complex
aromatic
structures
have
proven
harmful.
Congo
red
dye,
a
azo
dye
based
on
benzidine,
most
commonly
used
dyes;
its
metabolites
(benzidine
analogs)
can
be
toxic,
but
itself
not
always
present
review
summarizes
the
toxicity
towards
different
living
forms.
Herein,
primary
emphasis
has
been
given
to
mutagenic,
teratogenic,
carcinogenic
consequences
metabolites.
mechanisms
dyes’
carcinogenicity
also
discussed.
This
will
undoubtedly
beneficial
for
researchers
understand
harmful
effects
genotoxic,
factors.
Green Chemical Engineering,
Год журнала:
2023,
Номер
5(4), С. 440 - 460
Опубликована: Дек. 30, 2023
Organic
dye
pollutants
present
in
wastewater
pose
a
significant
global
challenge.
Among
pollutants,
the
synthetic
Rhodamine
B
(RB)
stands
out
due
to
its
non-biodegradable
nature
and
associated
neurotoxic,
carcinogenic,
respiratory
irritant
properties.
Extensive
research
has
been
conducted
on
efficacy
of
adsorption
photodegradation
techniques
for
removal
RB
from
wastewater.
While
advanced
oxidation
processes
(AOPs)
have
gained
considerable
attention
their
effectiveness
recent
years,
underlying
behaviors
mechanisms
these
technologies
remain
incompletely
understood.
Therefore,
comprehensive
summary
progress
this
domain
is
imperative
clarify
basics
up-to-date
achievements.
This
review
provides
an
in-depth
exploration
fundamentals,
advancements,
future
trajectories
treatment
technologies,
mainly
encompassing
photodegradation.
work
starts
with
general
introduction
outlining
sources,
toxicity,
diverse
applicable
strategies.
Subsequently,
it
thoroughly
examines
crucial
within
non-photochemical,
photochemical,
such
as
UV
light-assisted
AOP,
catalyst-assisted
ozonation,
Fenton
systems,
electrochemical
technology.
The
primary
objective
furnish
broad
overview
techniques,
elucidating
effectiveness,
limitations,
applicability.
Following
this,
encapsulates
state-of-the-art
computational
simulations
pertaining
interactions
clays
other
adsorbents.
Lastly,
delves
into
column
dye,
elucidates
various
influencing
factors,
including
bed
height,
feed
concentration,
pollutant
feeding
or
flow
rate,
regeneration.
panoramic
aims
provide
valuable
insights
suitable
gaps,
applicability
containing
dye.
Zeitschrift für Physikalische Chemie,
Год журнала:
2024,
Номер
238(9), С. 1599 - 1622
Опубликована: Фев. 17, 2024
Abstract
This
study
addresses
the
pressing
issue
of
environmental
pollution
caused
by
antibiotics
and
synthetic
dyes
in
aquatic
ecosystems,
presenting
a
novel
approach
for
their
efficient
photocatalytic
degradation.
Zinc
oxide
(ZnO)-based
nanoscale
photocatalysts,
including
ZnO
nanoparticles
(NPs)
ZnO/Ag
nanocomposite
heterostructure
(NCH),
were
synthesized
through
an
innovative
eco-friendly
method
utilizing
extract
derived
from
discarded
lemon
peels
as
biogenic
reducing
agent.
The
materials
extensively
characterized
UV
spectrophotometry,
X-ray
diffraction
(XRD),
scanning
electron
microscopy
(SEM),
Fourier
transform
infrared
spectroscopy
(FTIR).
results
confirmed
different
morphologies
NPs
NCH,
with
average
sizes
20
nm
42
nm,
respectively.
Notably,
NCH
exhibited
optical
bandgap
energies
3.2
eV
2.85
eV,
respectively,
signifying
potential
photocatalysts.
Under
natural
sunlight
irradiation,
these
demonstrated
exceptional
activity,
achieving
remarkable
98.8
%
degradation
rate
metronidazole
90
ciprofloxacin
just
12
min.
Furthermore,
effectively
removed
84
Toluidine
Blue
77
Congo
red
after
120
min,
while
enhanced
rates
to
approximately
90.5
86
Red.
research
highlights
significant
physicochemical
properties
synthesis
methods
employed,
positioning
sustainable
nanomaterials
promising
solutions
mitigating
effectively.
