Environmental Advances,
Год журнала:
2024,
Номер
15, С. 100490 - 100490
Опубликована: Янв. 18, 2024
The
adsorption
of
a
mixture
Basic
Yellow
2
and
Rhodamine
B
dyes
was
studied
using
the
MIL-101(Cr)-SO3H
metal
organic
framework
adsorbent.
experiments
were
implemented
mixture-process
variable
design.
statistically
significant
factors
affecting
total
capacity
(qTotal)
MILS
for
two
their
combined
percentage
removal
(PRTotal)
identified.
It
concluded
that
in
addition
to
main
factors,
binary
interactions
between
pH,
temperature
dosage
also
played
major
role
influencing
performance.
Different
mechanisms
such
as
π-π
interactions,
steric
hindrance,
electrostatic
hydrogen
bonding
proposed
be
responsible
adsorption.
capacities
at
global
optimal
conditions
1:3,
1:1
3:1
–
dye
mixtures
found
209.8,
218.5
216.2
mg/g
respectively.
classical
analytical
ridge
analysis
approach
led
solutions,
some
which
outside
experimental
design
space.
This
limitation
overcome
numerical
composition
constraints.
improved
identified
locus
local
optimum
adsorbent
loadings
removals
along
steepest
ascent
path
enroute
solution.
These
within
on
boundaries
feasible
Using
path,
less
severe
temperature,
than
those
corresponding
could
without
loss
objective.
has
high
potential
application
wastewater
treatment
processes
identify
better
well
suitable
operating
current
settings
when
there
are
changes
feed
compositions
pollutants,
and/or
process
(e.g.,
temperature).
Conditions
maximized
qTotal
different
from
PRTotal
hence
compromise
solution
had
found.
Multi-objective
optimization
an
in-house
developed
elliptical
method
reliably
generate
Pareto
fronts
solutions
proportions
mixture.
Resources Chemicals and Materials,
Год журнала:
2024,
Номер
3(4), С. 294 - 316
Опубликована: Июнь 1, 2024
This
article
explores
an
in-depth
analysis
of
eco-friendly
green
synthesis
methods
to
manufacture
zinc
oxide
nanoparticles
(ZnO
NPs).
Although
chemical
and/or
physical
approaches
may
initially
provide
better
results,
in
the
long
term,
a
biological
approach
using
or
natural
pathways
plant
extracts,
enzymes,
and
microbes
be
more
cost-effective.
review
addresses
various
techniques
their
potential
biomedical
applications,
elucidating
mechanisms.
Additionally,
highlights
pivotal
role
ZnO
NPs
diabetes,
cancer,
wound
healing,
drug
delivery,
other
marvels.
Overall,
it
importance
green-synthesized
building
future
sustainable
breakthroughs.
Results in Engineering,
Год журнала:
2023,
Номер
20, С. 101533 - 101533
Опубликована: Окт. 21, 2023
Ionic
liquid-based
electrochemical
biosensors
have
recently
surged
to
prominence
as
an
intriguing
technology
with
transformative
potential
for
real-time
biomolecule
monitoring,
notably
within
the
dynamic
pharmaceutical
landscape.
By
demonstrating
their
adeptness
in
detecting
extensive
array
of
biomolecules,
encompassing
glucose,
hormones,
nucleic
acids,
and
pivotal
biomarkers,
these
substantiated
efficacy
monitoring
biomolecules
sphere
revealing
excellent
thermal
stability,
minimal
volatility,
expansive
working
range.
For
instance,
biosensor
comprising
a
conducting
polymer,
graphene,
gold
nanoparticles,
ionic
liquids
exhibited
exceptional
sensitivity,
limit
detection
low
1
fM
(at
S/N
=
3),
range
3.2
0.32
pM,
remarkable
long-term
durability
aflatoxin
B1
detection.
In
light
compelling
developments,
first
time,
this
review
offers
comprehensive
exploration
recent
advancements
emergent
trajectories
(spanning
majorly
from
2019
2023)
utilization
biosensors,
particularly
context
aforementioned
diverse
pertinent
industry.
Furthermore,
it
discusses
challenges
opportunities
that
lie
ahead
production
shedding
on
reshape
future
applications.
Nanotechnology,
Год журнала:
2023,
Номер
34(48), С. 485301 - 485301
Опубликована: Авг. 24, 2023
Worldwide,
dyes
are
significant
pollutants
present
in
water
because
of
their
huge
consumption
for
industrial
purposes.
These
as
cause
serious
health
issues
human
beings
and
the
loss
aquatic
biodiversity.
So,
remediation
like
from
wastewater
is
need
hour.
In
study,
we
greenly
synthesizedSpirulina-mediated
titanium
oxide
nanoparticles
(STONPs)
adsorptive
methyl
orange
(MO)
(anionic)
malachite
green
(MG)
(cationic)
dyes.
The
characterization
STONPs
was
performed
by
Field
emission
scanning
electron
microscopy
(FESEM)
with
EDX,
FT-IR,
XRD,
Zeta
Potential
particle
size
analyzer,
Raman
spectroscopy,
UV-vis.
various
parameter
effects
pH,
nano-adsorbent
dose,
concentration
dye,
contact
time,
temperature
were
also
examined.
Adsorption
isotherms
Langmuir,
Freundlich,
Temkin,
Kinetics
models
Elovich
Model,
Pseudo
1st,
intraparticle
diffusion
model
(IPDM),
2nd
order,
thermodynamic
applied
a
stronger
interpretation.
Theqmaxattained
utilizing
Langmuir
adsorption
272.4795
mg
g-1and
209.6436
g-1for
MO
MG
correspondingly.
regeneration
study
synthesized
nanomaterials
up
to
five
cycles
done.
We
found
that
have
great
potential
both
International Journal of Environmental & Analytical Chemistry,
Год журнала:
2024,
Номер
unknown, С. 1 - 25
Опубликована: Май 6, 2024
This
study
presents
a
greenly
synthesised
novel
nanocomposite
composed
of
Zinc
Oxide
(ZnO)
and
Graphene
(GO)
for
the
adsorption
dyes
from
aqueous
solutions.
The
was
using
algae
thus
representing
green
eco-friendly
method,
ensuring
minimal
environmental
impact.
physical
characterisation
zinc
oxide
graphene
(ZnO/GO)
done
X-ray
diffraction
(XRD),
Brunauer-Emmett-Teller
(BET),
Fourier
transform
infrared
spectroscopy
(FT-IR),
Zeta
Potential,
Particle
Size
Analyzer
(PSA).
pore
diameter
ZnO/GO
1.801
nm,
its
total
surface
area
54.062
m2/g.
nanocomposite's
performance
systematically
investigated
through
batch
experiments.
With
an
efficiency
296.73
mg/g
259.74
MO
MG,
Langmuir
isotherm
model
outperforms
Freundlich
in
terms
adsorption.
pseudo-second-order
having
R2
value
0.99
both
offers
more
convincing
explanation
than
pseudo-first-order
model.
results
demonstrated
rapid
kinetics
high
capacities
cationic
anionic
dyes.
Additionally,
has
reusability
without
significant
degradation.
sustainable
nature
emphasised
by
efficient
dye
removal,
reusability,
secondary
waste
generation.
Desalination and Water Treatment,
Год журнала:
2024,
Номер
318, С. 100391 - 100391
Опубликована: Апрель 1, 2024
In
the
present
work,
hybanthus
blossom
extract
was
used
to
create
environmentally-friendly
synthesized
ZnO
NPs
using
dopants
such
as
yttrium
and
activated
charcoal.
Based
on
X-ray
diffraction
(XRD)
measurements,
it
observed
that
ZnO,
Y@ZnO,
AC@ZnO,
Y@AC@ZnO
nanoparticles
possess
a
wurtzite
structure.
Analysis
of
their
patterns
revealed
average
particle
sizes
47.64,
48.32,
49.21,
49.68
nm
for
nanoparticles,
respectively.
The
UV-visible
spectrum
displayed
absorbance
peaks
within
range
335
-
353
nm,
indicating
energy
band
gaps
3.70,
3.64,
3.57,
3.51
eV
Morphological
investigations
exhibit
high
permeability.
Photoluminescence
spectra
exhibited
intriguing
blue,
green,
red
emissions
when
excited
at
401,
491,
525
Upon
exposure
UV
light,
demonstrated
increased
efficiency
in
utilizing
light
reduction
methylene
blue
dye.
showed
superior
antibacterial
activity
against
bacteria
Pseudomonas
aeruginosa.
According
test
results,
MB
dye
could
remove
up
95.5%
its
target
material
catalyst
dosage
0.005
g/L
an
irradiation
time
120
minutes.
This
study
effectively
showcases
straightforward
environmentally
friendly
approach
producing
flexible
green
synthetic
technology.
