Langmuir,
Год журнала:
2024,
Номер
40(15), С. 8035 - 8045
Опубликована: Апрель 3, 2024
The
recovery
of
precious
metals,
such
as
palladium
(Pd),
from
wastewater,
is
an
economically
important
field.
present
study
reports
the
application
polyglycidyl
methacrylate
(PGMA)
macroporous
spheres
with
diethylaminoethyl
(DEAE)
functional
groups
(PGMA–DEAE)
for
adsorption
ions
[Pd(II)]
simulated
wastewater
solutions.
effects
pH,
duration,
and
initial
concentration
Pd(II)
on
amount
were
evaluated
systematically.
results
revealed
that
within
experimental
pH
range,
efficiency
increased
increasing
pH.
In
particular,
between
4
6,
efficiencies
approximately
100%.
At
298
K
∼
4,
capacity
PGMA–DEAE
was
1.22
mmol/g.
rates
high,
equilibrium
reached
10
min.
Ca(II),
Mg(II),
Co(II),
Cu(II),
Ni(II),
Fe(II)
selected
representative
competitive
metal
ions.
had
good
separation
selectivity
at
1–6
(all
RPd/Me
>
30),
especially
100).
SEM,
TEM,
EDS,
TG,
XRD,
XPS
indicated
in
a
high-acidity
environment
(CHCl
≥
1
mol/L),
adsorbed
through
electrostatic
attraction,
while
low-acidity
(pH
1–6),
coordinated
bonding
N.
exhibited
excellent
stability
regeneration
performance
five
cycles.
Heavy
metal
ion
wastewater
is
a
pressing
and
inescapable
issue
that
closely
related
to
human
health
ecological
security
due
its
toxicity,
carcinogenicity,
the
unmanageable
property
of
this
type
wastewater.
Metal–Organic
Frameworks
(MOFs)
are
class
crystalline
nanoporous
materials
with
flexible
designability
controllability,
showing
great
potential
in
field
adsorption
purification
heavy
metals
In
Perspective,
we
first
discuss
harm
different
ions
briefly
expound
virtues
MOFs
for
pollutant
adsorption.
Then,
mainly
summarize
recent
advances
construction
metal-based
(Zr-based,
Zn-based,
Co-based,
Al-based,
etc.)
their
research
progress
Furthermore,
various
types
MOF
additives
can
often
be
effectively
applied
by
functional
modification
or
other
composition.
Additionally,
several
commonly
used
kinetics
isotherm
models
also
detailed
help
an
in-depth
understanding
mechanism.
Finally,
challenges
opportunities
additionally
discussed,
review
may
provide
new
insight
water
applications.
Adsorption
is
an
efficient
and
highly
selective
method
for
gold
recovery.
Introducing
rich
N/S
organic
groups
to
combine
with
metal-organic
frameworks
(MOFs)
as
adsorbents
regarded
a
practical
approach
enhance
Herein,
MOF
(zirconium
isothiocyanatobenzenedicarboxylate
MOF,
UiO-66-NCS)
was
designed
amidinothiourea
(AT)
form
UiO-66-AT
amidothiourea-benzenedicarboxylate
MOF)
rapid
adsorption.
The
prepared
delivers
improved
adsorption
capacity
(about
903.02
mg/g
at
1000
mg·L-1
of
the
initial
Au3+)
impressive
rate
within
minutes
10
min
200
Au3+).
Meanwhile,
it
exhibits
sustainable
stability
after
5
cycles
retention
99.52%
excellent
selectivity
98.76%
in
actual
wastewater.
According
advanced
characterizations
Density
Functional
Theory
(DFT)
simulation,
mechanism
might
be
elaborated
electrostatic
adsorption,
chelating
coordination,
chemical
reduction.
modified
active
provide
sites
Au(III)
reduction
Au(0).
maintains
large
high
surface
activity
while
realizing
stable
application
multiple
cycles,
which
good
value.
Langmuir,
Год журнала:
2024,
Номер
40(35), С. 18486 - 18502
Опубликована: Авг. 22, 2024
Carbon-based
nanostructures
are
promising
eco-friendly
multifunctional
nanomaterials
because
of
their
tunable
surface
and
optoelectronic
properties
for
a
variety
energy
environmental
applications.
The
present
study
focuses
on
the
synthesis
graphene
oxide
(GO)
with
particular
emphasis
engineering
its
optical
making
it
an
excellent
adsorbent
as
well
visible
light-active
photocatalyst.
It
was
achieved
by
modifying
improved
Hummers
method
through
optimizing
parameters
involved
in
oxidation
process.
This
controlled
allows
systematic
tailoring
structural,
optical,
functionality,
leading
to
adsorption
photocatalytic
sustainable
removal
organic
pollutants
water
treatment.
Several
spectroscopic
microscopic
characterization
techniques,
such
XRD,
SEM,
Raman,
UV-visible,
FTIR,
TEM,
XPS,
BET,
etc.
were
employed
analyze
degree
oxidation,
chemistry/functionalization,
morphological,
structural
synthesized
GO
nanostructures.
analyses
showed
functionality
active
sites
better
adsorptive
band
gap
from
2.51
2.76
eV
exhibiting
natural
sunlight
activity
(>99%)
pollutant.
Various
isotherms
have
been
studied
capability
(
Advanced Sustainable Systems,
Год журнала:
2024,
Номер
unknown
Опубликована: Дек. 26, 2024
Abstract
The
interest
in
improving
soil
quality
through
innovative
methods
continues
to
grow
sustainable
agriculture.
Despite
the
emergence
of
new
techniques,
there
has
been
limited
research
on
based
metal‐organic
frameworks
(MOFs).
This
review
first
addresses
current
issues
and
agriculture
industry
discusses
recent
approaches
for
quality.
It
then
explores
latest
advancements
MOF‐based
methods,
which
hold
potential
enhance
increase
crop
yields
significantly.
unique
properties
physicochemical
mechanisms
behind
MOFs'
applications
analytical
performance
are
presented,
highlighting
their
more
efficient
cost‐effective
enhancement
solutions.
reveals
that
these
MOF
show
promise
enhancing
processes
such
as
adsorption,
extraction,
analyte
monitoring,
fertilization,
washing,
moisture
sensing.
can
lead
a
future
with
higher
quality,
ensuring
better
food
production
agricultural
industry.
Pharmaceutical
pollution
in
wastewater
poses
significant
environmental
and
public
health
concerns
worldwide.
Chloramphenicol
(CP),
an
antibiotic
widely
used
medical
veterinary
applications,
is
among
the
active
pharmaceutical
ingredients
(APIs)
frequently
detected
aquatic
environments.
This
study
explored
encapsulation
of
chloramphenicol
API
contaminated
using
rationally
designed
fibrations
based
on
silver
metal
ion-directed
self-assembly
fibrillator-type
self-assembling
ligand
(ANS-3).
We
further
investigated
removal
various
commonly
prescribed
drugs,
including
antibiotics
such
as
β-lactam
(amoxicillin),
fluoroquinolone
(ciprofloxacin),
aminoglycoside
(neomycin),
tetracycline;
antiparasitic
agents
with
antiprotozoal
properties
(praziquantel
metronidazole);
nonsteroidal
anti-inflammatory
drugs
(NSAIDs)
phenylbutazone
ketoprofen;
vasodilator
isoxsuprine;
amphiphilic
antidepressants
(amitriptyline);
antiviral
drug
amantadine.
The
findings
validated
crucial
influence
polar
multifunctionality
structural
complexity
enhancing
interactions
Ag.ANS-3
matrix,
emphasizing
its
potential
for
efficient
sequestration.
First,
picolinic
acid
(PA)
phenylalanine
(F)
were
evaluated
their
ability
to
form
fibrillar
structures,
morphological
characterization
revealed
well-defined
networks
varying
degrees
porosity
interconnectivity.
Then,
strategic
inclusion
leucine
synthesizing
ANS-3
facilitated
formation
robust
networks,
employing
hydrophobic
drive
process.
Finally,
APIs
was
Ag(I)
ion-driven
self-assembled
nanofibrous
material.
research
contributes
development
innovative
physicochemical
treatment
strategies
remediation
validates
importance
rational
design
encapsulation-based
technologies.
In
this
study,
the
effects
of
resorcin[4]arenes/cavitand
structural
properties:
(i)
hydrophobicity,
aliphatic
alkyl
tails
elongation
(methyl,
propyl,
hexyl,
and
nonyl)
based
on
macrocycles
1–4
lower
rims;
(ii)
H-bond
dipole–dipole
importance,
resorcin[4]arene
4
vs
its
rigid
core
structure
cavitand
5;
(iii)
cavity
order/disorder,
crown
(C4v)
chair
(C2h)
6
isomers
remediation
methylene
blue
(MB)
in
water
have
been
investigated.
Additionally,
adsorption
kinetics/isotherms
MB
by
octols
were
studied,
indicating
that
process
follows
pseudo-second
order
Langmuir
models,
respectively.
Notably,
longest
alkylated
(C4V)
conformer
was
found
to
be
best
adsorbent
among
studied
macrocycle
family
with
a
remarkable
capacity
(Qmax
=
769.230
mg/g),
owing
unique
features
tail-to-tail
aggregation
behavior
water.
Hence,
further
used
evaluate
efficiency
toward
other
(non)ionic
dyes,
results
considerable.
Also,
recoverability/reusability
removal
from
examined
for
five
consecutive
cycles,
revealed
promising
recovering
capability
excellent
efficiency,
leading
confidence
effective
use
manifold
adsorption/desorption
cycles.
