Journal of environmental chemical engineering,
Journal Year:
2024,
Volume and Issue:
12(5), P. 113703 - 113703
Published: July 29, 2024
The
development
of
efficient
adsorbent
for
removing
excessive
nutrients
(e.g.
phosphorous
–
P)
and
antibiotics
tetracycline
hydrochloride
TC)
from
livestock
wastewater
is
necessary
but
challenging
in
practical
application.
In
this
study,
magnetic
Zr-based
metal-organic
frameworks
(Fe3O4/UiO-66)
with
interfacial
Fe-O-Zr
bonds
were
synthesized
then
modified
ethylenediamine
(EDA)
functional
groups.
resultant
optimized
composite,
namely
Fe3O4/UiO-66-N2,
showed
promising
removal
P
TC
both
single
binary
solution
systems.
It
exhibited
the
maximum
adsorption
capacities
90.0
mg
P/g
72.3
mg/g
component
solution,
respectively.
an
initial
concentration
5
P/L,
coexistence
posed
a
slight
inhibition
effect
on
over
Fe3O4/UiO-66-N2.
However,
was
increased
by
raising
P/L
to
20
P/L.
Fe3O4
nanoparticles
EDA
groups
suggested
jointly
improving
TC,
synergy
factors
1.1
1.8,
effects
reaction
time,
water
medium,
pH
coexisting
ions
investigated
detail.
mechanisms
governing
phosphate
included
electrostatic
attraction,
hydrogen
bonding,
ligand
exchange
complexation.
Those
contributing
Lewis
acid-base
interaction
π-π
electron-donor-acceptor
interaction,
addition
bonding
This
work
designed
novel
functionalized
MOF
composite
adsorbents
targeting
at
simultaneous
water,
under
synergistic
surface
ACS Applied Materials & Interfaces,
Journal Year:
2019,
Volume and Issue:
11(50), P. 46973 - 46983
Published: Nov. 20, 2019
Mercury
ions
can
cause
a
series
of
hazards
to
humans
and
the
environment,
even
in
trace
amounts.
Here,
we
designed
novel
adsorbent
(Cys-UiO-66)
by
functionalizing
NH2-UiO-66
with
l-cysteine
for
selective
removal
Hg(II)
from
solution.
The
Cys-UiO-66
was
characterized
different
instruments.
adsorption
property
evaluated
batch
methods.
maximum
capacity
350.14
mg/g
at
pH
5.0.
Furthermore,
isotherm
kinetics
models
were
accord
Langmuir
pseudo-second-order
models,
respectively,
evidencing
that
behavior
dominated
monolayer
chemisorption.
had
better
affinity
than
other
coexisting
wastewater
could
be
regenerated
least
five
cycles.
results
prove
is
talented
efficient
sorbent
mercury
ions.
Inorganic Chemistry,
Journal Year:
2020,
Volume and Issue:
59(5), P. 3012 - 3025
Published: Feb. 13, 2020
Metal–organic
frameworks
(MOFs)
show
a
distinctive
pre-eminence
over
other
heterogeneous
systems
for
adsorption
of
carbon
dioxide
(CO2)
gas
and
fluorescence
detection
water
contaminating
ions,
where
integration
both
these
attributes
along
with
enhancement
pore
functionality
stability
is
crucial
potential
applications
related
to
environmental
remediation.
Pore
functionalization
has
been
achieved
in
2-fold
interpenetrated,
mixed-ligand
Cd(II)-framework
[Cd1.5(L)2(bpy)(NO3)]·2DMF·2H2O
(CSMCRI-5)
(HL
=
4-(4-carboxyphenyl)-1,2,4-triazole,
bpy
4,4′-bipyridine,
DMF
dimethylformamide,
CSMCRI
Central
Salt
&
Marine
Chemicals
Research
Institute)
by
utilizing
bifunctional
ligand
HL.
The
bpy-pillared
framework,
containing
diverse
Cd(II)
nodes,
optimum
sized
voids,
free
N-atom
affixed
one-dimensional
porous
channels,
shows
notable
structural
robustness
organic
solvents
water.
In
spite
negligible
surface
area,
the
activated
MOF
(5a)
exhibits
good
CO2
uptake
highly
selective
N2
(259.94)
CH4
(14.34)
alongside
minor
loss
during
multiple
adsorption–desorption
cycles.
Luminescence
studies
demonstrate
extremely
ultrafast
sensing
Fe3+
ions
aqueous
phase
quenching
(1.13
×
104
M–1)
as
well
an
impressive
98
ppb
limit
(LOD).
Importantly,
exclusively
retained
under
simulated
physiological
conditions.
framework
further
serves
quick-responsive
scaffold
toxic
CrO42–
Cr2O72–
anions,
individual
constants
(CrO42–:
1.73
M–1;
Cr2O72–:
5.42
LOD
values
280
ppb;
320
ppb)
rank
among
best
sensory
MOFs
Cr(VI)
species.
It
imperative
stress
vivid
monitoring
all
pollutants
handy
paper-strip
method,
besides
outstanding
applicability
5a
toward
their
recyclable
detection.
Mechanism
comprehensively
investigated
light
absorption
excitation/emission
energy
host
studied
analyte.
