Green Processing and Synthesis,
Journal Year:
2025,
Volume and Issue:
14(1)
Published: Jan. 1, 2025
Abstract
Cr/Co-MOFs
were
synthesized
via
a
solvothermal
method
using
chromium
acetate
and
cobalt
chloride
hexahydrate
as
metal
ions,
trimeric
acid
the
organic
ligand.
The
structures
of
characterized
Fourier
infrared
spectroscopy,
X-ray
diffraction,
scanning
electron
microscopy
techniques.
These
used
for
removing
contaminants
in
wastewater
treatment.
Fleroxacin
Rhodamine
B
(RhB)
specifically
selected
target
molecules
this
study
to
evaluate
removal
efficiency
based
on
mass
Co/Cr-MOFs,
concentrations
contaminants,
adsorption
time.
Experimental
findings
indicated
that
at
Co/Cr-MOFs
dosage
100
mg,
with
initial
(30
ppm)
RhB
(20
ppm),
efficiencies
achieved
95%
99%,
respectively.
Within
timeframe
5
h,
attained
capacities
amounting
269.6
mg·g
−1
fleroxacin
289.5
RhB.
interaction
between
fleroxacin,
well
RhB,
is
primarily
attributed
factors
such
pore
size,
hydrogen
bonding,
electrostatic
charge,
π–π
interactions.
Moreover,
theoretical
analysis
corroborated
these
experimental
results
by
demonstrating
conformity
process
both
second-order
kinetic
model
equations
alongside
Langmuir
isotherm
equations.
Collectively,
data
combined
investigations
underscore
practical
significance
associated
employing
effective
eradication
pollutants.
Journal of Inorganic and Organometallic Polymers and Materials,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Jan. 22, 2025
Abstract
Water
pollution
by
pharmaceutical
pollutants
such
as
antibiotics
represents
a
serious
environmental
crisis
which
is
rising
day
day.
So,
the
development
of
new
efficient
visible
light
photocatalysts
has
long
been
imperative
to
address
water
pollution.
In
this
study,
zinc/vanadium
(Zn/V)
incorporated
MCM-41
(Mobil
Composition
Matter
No.
41)
(ZVM)
successfully
synthesized
using
simple
surfactant-coprecipitation
assisted
method
and
evaluated
an
photocatalyst
for
tetracycline
(TC)
fast
degradation.
The
effects
Zn/V
metal
cations’
synergistic
effect
on
morphological,
surface,
optical,
removal
capability
MCM-41-metal
samples
were
explored.
Compared
pure
silica,
ZVM
mesoporous
material
unveiled
reduced
pore
diameter,
thicker
wall
Brunauer-Emmett-Teller
surface
area
(BETs)
with
still
preserved
ordered
hexagonal
structure.
Scanning
electron
microscopy-transmission
microscopy
(SEM-TEM)
analysis
revealed
significant
morphological
changes
in
upon
incorporation.
modification
bandgap
energy
suggests
applicability
tailored
solar
photocatalysis
applications.
catalyst,
containing
4
wt%
each
(Zn
V),
demonstrated
exceptional
performance
degrading
TC,
achieving
degradation
efficiency
98.13%
within
just
25
min.
resulting
exhibited
improved
ion-exchange
capacity,
increased
number
active
sites,
optimized
properties,
leading
significantly
enhanced
catalytic
specific
reactions.
Additionally,
possible
photocatalytic
mechanism
TC
over
proposed
involvement
holes
(h
+
)
hydroxyl
radicals
reactive
species
elucidated
radical
trapping
experiments.
These
results
demonstrate
potential
good
recovery
recyclability
can
be
tool
meet
UNs’
SDG:6.
Desalination and Water Treatment,
Journal Year:
2024,
Volume and Issue:
318, P. 100339 - 100339
Published: April 1, 2024
Since
the
last
decades,
water
stress
challenges
caused
by
climate
change
have
posed
a
significant
concern
for
treatment
and
re-use
of
treated
wastewater.
Conventional
methods
employ
chemicals
as
coagulants-flocculants,
which
pose
serious
threat.
Hence,
it
has
led
to
gradual
increase
in
use
natural
plants
promising
safe
alternatives.
In
present
work,
Austrocylindropuntia
subulata
plant
was
used
first
time
coagulant-flocculant
wastewater
treatment.
The
raw
chlorenchyma
powder
characterized
SEM,
FTIR,
EDX,
results
showed
very
strong
resemblance
with
composition
Opuntia
ficus
indica.
biocoagulant-flocculant
obtained
simple
extraction
using
distilled
water.
An
optimization
dose
test
demonstrated
that
mass
0.1
g
decreases
approximately
99%
turbidity.
After
year
storage,
retained
same
efficiency.
extract's
properties
remained
stable
after
three
months
but
developed
an
unpleasant
odor
brownish
color
due
microbial
oxidation
organic
components.
International Journal of Environmental & Analytical Chemistry,
Journal Year:
2024,
Volume and Issue:
unknown, P. 1 - 25
Published: May 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.
In
this
study,
sodium
dodecyl
sulfate
modified
graphene
oxide
(GO-SDS)
was
prepared
as
an
adsorbent
to
remove
moxifloxacin
(MFX)
from
aqueous
solution.
Transmission
electron
microscopic
(TEM)
and
scanning
(SEM)
images
showed
that
SDS
decreases
the
aggregation
of
GO
surface,
which
significantly
increased
surface
area
interlayer
distance
between
successive
layers
GO-SDS.
Adsorption
studies
demonstrated
98%
MFX
removed
by
GO-SDS
within
15
min
at
pH
5.8,
while
dosage
37.5
mg
L–1.
The
adsorption
kinetics
followed
pseudo-second
order
linear
model,
Langmuir
isotherm
model
fitted
data
better
than
Freundlich
model.
values
ΔH
ΔS
obtained
thermodynamic
were
+5.603
kJ
mol–1
+2.114
K–1,
respectively,
indicating
process
is
endothermic
spontaneous.
Furthermore,
satisfactory
reusability
revealed
it
could
be
effective
for
removal
