Applied Organometallic Chemistry,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Nov. 18, 2024
ABSTRACT
A
dinuclear
copper
complex,
[Cu
2
(teaH)(pNBA)
(H
O)
]·MeOH·pNBH
(
1
)
(where
teaH
3
=
triethanolamine,
pNBH
4‐nitro‐benzoic
acid,
and
pNBA
4‐nitro‐benzoate)
has
been
prepared
structurally
characterized.
In
,
there
is
an
interesting
intermolecular
structure
that
shown
as
a
tetramer
connected
in
chain‐like
motif.
the
UV‐Vis
spectrum,
higher
absorbance
at
267
nm
referred
to
n
→
π*
transition,
coupled
with
weak
peak
500
nm,
indicating
another
which
specified
metal‐to‐ligand
charge
transfer.
The
intensity
photoluminescence
spectrum
marked
absorption
of
energy
required
for
excitation
electrons,
whereas
lower
peaks
show
emission
energy,
describes
d‐d
transitions
Cu
(II)
electrons
due
d
9
configuration.
Complex
was
explored
adsorption
methylene
blue
(MB)
dye,
maximum
101.07
mg/g,
removal
efficiency
estimated
be
81.05%.
conformity
kinetic
studies,
process
proceeded
via
Pseudo‐first‐order
model.
incorporation
mixed
ligands
such
tends
increase
dimensionality
led
increased
MB
adsorption.
plausible
mechanism
behind
favored
by
hydrogen‐bonding,
electrostatic,
π–π,
n–π*
interactions,
operating
between
dye
complex
.
Further,
H‐bonding
these
interactions
provided
stability
improved
observed
even
during
2nd
3rd
recyclability
experiments.
Additionally,
corroborated
remarkable
after
adsorption,
allowing
up
four
recycling
turns.
magnetic
study
revealed
antiferromagnetic
coupling
two
centers
singlet
ground
state
S
0).
Polymers,
Journal Year:
2024,
Volume and Issue:
16(12), P. 1742 - 1742
Published: June 19, 2024
In
the
current
research,
we
prepared
a
polymeric
framework,
{[Cu(C2O4)(C10H8N2)]·H2O·0.67(CH3OH)]}n
(1)
(where
C2O4
=
oxalic
acid;
C10H8N2
2,2-bipyridine),
and
explored
this
compound
for
adsorption
of
methylene
blue
(MB)
methyl
orange
(MO).
The
crystal
structure
consists
Cu(ox)(bpy)
unit
connected
via
oxalate
to
form
1D
chain.
This
chain
has
capacities
194.0
167.3
mg/g
MB
MO,
respectively.
removal
rate
is
estimated
be
77.6%
66.9%
plausible
mechanisms
are
electrostatic,
π-π
interaction,
OH-π
interaction
dye
stickiness.
adsorbent
surface
exhibits
negative
charge
that
produces
electrostatic
resulting
in
excellent
efficiency
at
pH
7
8.
pseudo-first-order
kinetic
model
selected
MO
on
adsorbent.
reported
remarkable
sorption
organic
dyes
can
useful
wastewater
treatment.
Desalination and Water Treatment,
Journal Year:
2024,
Volume and Issue:
320, P. 100609 - 100609
Published: July 15, 2024
In
this
work,
a
green
and
sustainable
approach
used
for
synthesis
of
novel
biochar@Al2O3
nanocomposite
through
pyrolysis
Melia
azedarach
(chinaberry)
biomass
coupled
with
Al2O3
nanoparticles
from
Phyllanthus
emblica
seed
extract.
The
synthesized
was
analysed
by
UV-Vis
spectroscope,
FTIR,
SEM,
EDX
XRD
were
to
authenticate
the
distinct
properties
nanocomposite.
These
techniques
are
further
examine
after
photocatalytic
degradation
methylene
blue.
Additionally,
scavenger
impacts
on
dye
degradation,
stability
potential
reusability
examined
in
detail.
investigation
evaluating
capability
blue
wastewater
revealed
an
impressive
efficiency
97.36
%.
Furthermore,
five
cycles
reuse
retained
substantial
84.59
This
research
highlights
importance
presenting
efficient
eco-friendly
method
water
purification,
emphasizing
role
nanocomposites
addressing
environmental
pollution
innovative
nanomaterial
applications.
Significantly
progresses
made
development
materials
treatment,
particular
promising
degradation.
Journal of Inorganic and Organometallic Polymers and Materials,
Journal Year:
2024,
Volume and Issue:
unknown
Published: July 13, 2024
Abstract
We
established
three
nano-solid
adsorbents:
nanocellulose
based
on
plant
loofah
sponge
(NC),
chitosan
(CS),
and
nanocellulose/chitosan
composite
(CSC).
These
substances
were
employed
as
solid
adsorbents
to
eliminate
methylene
blue
(MB)
dye
from
wastewater.
Various
characterization
techniques
investigate
all
the
synthesized
adsorbents,
including
TGA
(thermogravimetric
analysis),
XRD
(X-ray
diffraction
spectra),
(BET)
nitrogen
gas
adsorption-desorption,
SEM
(scanning
electron
microscope),
TEM
(transmission
microscopy),
FTIR
(Fourier
transform
infrared)
spectrometer,
zeta
potential.
According
our
results,
CSC
showed
greater
thermal
stability
than
LS
NC
but
lower
CS,
mesoporous
(2.012
nm),
higher
total
pore
volume
(0.366
cm
3
.
g
−
1
),
specific
surface
area
(639.3
m
2
pH
pzc
of
7.22.
The
static
adsorption
MB
was
well
described
by
Langmuir
(
R
>
0.9872),
Temkin
0.9668),
Dubinin-Radushkevich
0.9485)
models.
exhibited
highest
capacity
(301.20
mg.
)
at
47
°C
after
a
24
h
shaking
period
dosage
g.
L
adsorbent
7.
fabricated
materials
fitted
with
linear
PSO
0.9806)
Elovich
0.9574)
kinetic
model.
enthalpy,
entropy,
free
energy
change
for
onto
determined
be
47.11
kJ.
mol
,
0.172
K
3.29
respectively
20
°C.
Thermodynamic
investigation
that
is
spontaneous,
endothermic,
favorable
(0
<
<1,
0.017–0.313),
physisorption
E
DR
8
).
Compared
other
eluents,
nitric
acid
produced
desorption
percentage
(98.5%).
