Research Square (Research Square),
Год журнала:
2024,
Номер
unknown
Опубликована: Окт. 25, 2024
Abstract
This
study
explores
the
demethylation
of
methylene
blue
in
an
acidic
pH,
utilizing
spent
cathode
from
Li-ion
batteries.
The
has
a
composition
LiMn2O4
and
pcz
close
to
pH
=
2.1.
In
contact
with
medium
(pH
2),
adsorbed
demethylated
form
thionine.
was
confirmed
by
UV-vis
ESI
measurements
resulting
solutions.
intermediate
m/z
300
crucial
for
proposing
mechanism
that
is
similar
catalyzed
hemoproteins.
FTIR
adsorption
onto
cathode.
rise
observed
during
can
explain
incomplete
degradation
stopping
at
thionine
stage.
Consequently,
reaction
involving
battery
based
on
may
be
applicable
other
molecules
future
research.
Bacteria,
Год журнала:
2025,
Номер
4(1), С. 15 - 15
Опубликована: Март 7, 2025
Textile
dyes
pose
a
major
environmental
threat
due
to
their
toxicity,
persistence
in
water
bodies,
and
resistance
conventional
wastewater
treatment.
To
address
this,
researchers
have
explored
biological
physicochemical
degradation
methods,
focusing
on
microbial,
photolytic,
nanoparticle-mediated
approaches,
among
others.
Microbial
depends
fungi,
bacteria,
yeasts,
algae,
utilizing
enzymatic
pathways
involving
oxidoreductases
like
laccases,
peroxidases,
azoreductases
breakdown
or
modify
complex
dye
molecules.
Photolytic
employs
hydroxyl
radical
generation
electron-hole
pair
formation,
while
utilizes
titanium
dioxide
(TiO2),
zinc
oxide
(ZnO),
silver
(Ag)
nanoparticles
enhance
removal.
improve
efficiency,
microbial
consortia
been
developed
decolorization
mineralization,
offering
cost-effective
eco-friendly
alternative
methods.
Photocatalytic
degradation,
particularly
using
TiO2,
harnesses
light
energy
for
breakdown.
Research
advancements
focus
shifting
TiO2
activation
from
UV
visible
through
doping
composite
materials,
optimizing
surface
area
mesoporosity
better
adsorption.
Nanoparticle-mediated
approaches
benefit
high
rapid
adsorption,
with
ongoing
improvements
synthesis,
functionalization,
reusability,
magnetic
nanoparticle
integration.
These
emerging
technologies
provide
sustainable
solutions
degradation.
The
primary
aim
of
this
review
is
comprehensively
evaluate
synthesize
current
research
the
azo
photolytic
processes,
nanotechnology-based
approaches.
also
provides
detailed
information
salient
mechanistic
aspects
these
efficiencies,
advantages,
challenges,
potential
applications
industrial
contexts.
Biodiversitas Journal of Biological Diversity,
Год журнала:
2024,
Номер
25(4)
Опубликована: Апрель 25, 2024
Abstract.
Pinontoan
R,
Susanto
TSR,
Lucy
J,
Angelina
C,
Soentoro
SE,
Purnomo
JS,
Cornelia
M.
2024.
Trypan
blue
dye
decolorization
by
Aeromonas
caviae
isolated
from
water
sewage
in
Jakarta,
Indonesia.
Biodiversitas
25:
1631-1637.
The
textile
industry
generates
a
substantial
amount
of
hazardous
chemical
waste,
which
requires
proper
treatment
to
mitigate
negative
environmental
and
health
consequences
if
left
untreated.
Studies
on
the
removal
Blue
(TB),
widely
used
commercial
diazo
dye,
indigenous
bacteria
are
limited.
Therefore,
this
study
aimed
isolate,
identify,
characterize
microorganisms
capable
decolorizing
TB
dye-contaminated
wastewater
Jakarta.
Microorganisms
were
initially
screened
for
activity
solid
media
containing
TB.
Among
strains,
TB2
isolate
exhibited
highest
potential
was
selected
further
analysis.
morphological,
biochemical,
molecular,
phylogenetic
characteristics
revealed
that
it
belonged
species
caviae.
To
examine
ability
remove
TB,
various
culture
conditions,
such
as
pH,
temperature,
agitation,
tested.
results
demonstrated
A.
strain
could
reduce
up
77.10%
(0.0025%
(w/v))
under
static
pH
7.0,
27°C
over
six
days.
our
knowledge,
is
first
report
genus
decolorize
These
imply
use
dye-bearing
industrial
wastewater.
Industrial & Engineering Chemistry Research,
Год журнала:
2024,
Номер
63(30), С. 13189 - 13207
Опубликована: Июль 17, 2024
Biosurfactants
are
ecofriendly
substitutes
for
chemical
surfactants.
In
this
study,
biosurfactant-producing
bacterial
strains
were
isolated
from
soil
and
water
samples
textile
industry
sites.
Extracted
biosurfactants
could
reduce
the
surface
tension
values
72
to
39.3
mN/m
demonstrating
that
achieved
critical
micelle
concentration.
Stable
emulsifications
with
diesel
vegetable
oil
showed
an
emulsification
index
ranging
61.76%
76.47%.
The
presence
of
both
rhamnolipid
surfactin
types
was
confirmed
our
isolates
using
FTIR,
LC-MS/MS,
GC-MS/MS
analyses.
These
bacteria
act
on
dyes
heavy
metals
present
in
wastewater
their
concentrations
by
either
degradation
or
biosorption.
After
reaction
isolates,
FTIR
spectra
breakdown
some
compounds
conversion
into
intermediates.
There
also
a
reduction
concentration
effluents,
as
shown
EDAX
analysis.
novel
can
be
scaled
up
use
reclamation
recycled
regular
industrial
use.
Eng—Advances in Engineering,
Год журнала:
2024,
Номер
5(1), С. 116 - 132
Опубликована: Янв. 10, 2024
This
study
investigates
the
biodegradation
of
Reactive
Red
141
(RR
141),
an
azo
dye
prevalent
in
textile
industry,
by
bacteria
isolated
from
activated
sludge
a
effluent
treatment
plant.
RR
141,
characterized
nitrogen–nitrogen
double
bonds
(-N=N-),
contributes
to
environmental
issues
when
improperly
disposed
effluents,
leading
reduced
oxygen
levels
water
bodies,
diminished
sunlight
penetration,
and
formation
potentially
carcinogenic
mutagenic
aromatic
amines.
research
focuses
on
identifying
with
potential
decolorize
141.
Microbiological
identification
employs
MALDI-TOF-MS,
known
for
its
precision
rapid
bacteria,
enhancing
efficiency.
Results
highlight
Bacillus
thuringiensis
Kosakonia
radicincitans
as
most
promising
strains
decolorization.
Analysis
micro-organisms
database
exploration
suggests
correlation
between
these
decolorization
process.
It
is
worth
noting
that
this
first
report
use
K.
Three
distinct
culture
media—BHI,
MSG,
MS—were
assessed
investigate
their
impact
Notably,
BHI
MSG
media,
incorporating
carbon
source,
facilitated
bacterial
growth
both
tested
species
(B.
radicincitans),
phenomenon
absent
MS
medium.
observation
exhibit
limited
capability
utilize
pointing
towards
influence
medium
discoloration
The
evaluates
performance
kinetics,
capacity
through
UV-VIS
spectrophotometry,
degradation
pathways
via
HPLC-MS
analysis,
phytotoxicity,
enzymatic
activity
identification.
B.
decolorizing
RR141,
38%
26%
removal
individually
120
h.
As
consortium,
they
achieved
36%
12
h,
primarily
biosorption
rather
than
biodegradation,
indicated
analyses.
In
conclusion,
emphasizes
importance
exploring
optimize
effluents.
emerge
candidates
bioremediation,
application
MALDI-TOF-MS
proves
invaluable
precise
Chemistry & Biodiversity,
Год журнала:
2024,
Номер
21(4)
Опубликована: Фев. 15, 2024
Abstract
A
large‐scale
quantity
of
copper
oxalate
nanoparticles
were
successfully
obtained
via
a
facile
and
green
solid‐state
chemical
reaction.
Copper
by
ball‐milling
between
chloride,
Liquorice
(Glycyrrhiza
glabra)
,
ascorbic
acid
at
ambient
conditions.
The
size
morphology
powder
studied
transmission
scanning
electron
microscopy.
prepared
semi‐spherical
in
shape
ranged
from
5
to
15
nm
size.
UV/Vis
spectroscopy,
Fourier
transforms
infrared
X‐ray
photoelectron
spectroscopy
measurements
carried
out
characterize
the
samples.
evaluated
as
catalyst
catalytic
degradation
4‐nitrophenol,
bromophenol
blue,
reactive
yellow,
mixture
three
pollutants.
present
study
combined
reaction
requirements
for
mass
production
nanomaterials.
proposed
is
performed
simple
steps,
inexpensive,
low
energy
consuming,
solvent‐free,
minimizes
emission
secondary
wastes.
