Separation Science and Technology,
Год журнала:
2024,
Номер
unknown, С. 1 - 17
Опубликована: Ноя. 4, 2024
Lactic
acid
is
readily
generated
in
bacterial
fermentations;
however,
a
significant
amount
of
processing
and
expenses
are
required
for
the
purification
lactic
fermentation
broth.
In
this
work,
sorption
from
simulated
broth
has
been
studied
by
utilizing
zirconium-based
metal-organic
framework
(Zr-UiO-66
MOF)
that
acts
as
prominent
adsorbent
due
to
its
specific
geometries
functional
groups.
The
morphological,
structural
properties
prepared
MOF
investigated
using
different
characterization
techniques
such
Field
emission
scanning
electron
microscopy
(FE-SEM),
X-ray
diffraction
(XRD)
pattern,
Fourier
transform
infrared
(FTIR)
analysis,
Brunauer-Emmett-Teller
(BET)
analysis.
results
demonstrate
accuracy
synthesis
procedure.
order
achieve
an
efficient
separation
process,
it
essential
determine
optimal
operational
conditions.
To
address
this,
response
surface
methodology
(RSM)
was
employed
devise
approach
optimizing
five
crucial
process
parameters
achieving
recovery
removal.
These
include
initial
LA
concentration
(ranging
1
36
mg.L−1),
pH
(3–10),
temperature
(25
55
°C),
mass
(0.25
g),
contact
time
(10
240
min).
RSM
analysis
revealed
quadratic
model
provided
best
fit
experimental
data,
with
high
coefficient
determination
(R2).
Three
validation
trials
were
carried
out
precision
optimization
leading
maximum
adsorption
efficiency
97.7%
being
reached
under
optimized
conditions
(initial
=
18.5
mg.L−1,
6.5,
0.625
g,
min,
40
°C).
The
field
of
study
rare
earth
element
(REE)
adsorption
by
metal–organic
frameworks
(MOFs)
has
emerged
relatively
recently.
Recovering
REEs
from
industrial,
mining,
and
end-of-life
electronics
recycling
effluents
offers
a
sustainable
approach
to
mitigating
their
unrestricted
release
into
the
environment.
MOFs,
known
for
exceptional
porosity
modifiability,
have
demonstrated
significant
potential
as
efficient
adsorbents
REE
recovery
aqueous
environments.
To
propel
advancement
this
promising
technology,
review
fragmented
research
conducted
over
past
decade
on
MOFs
been
undertaken.
Functionalization
combination
proven
effective
in
enhancing
adsorbent
capacity,
stability,
rate,
reusability.
Notably,
3D-agaric-like
core–shell
U6N@ZIF-8-20
MOF,
MOF-bonded
silica
amine
polymer,
phosphonic
acid–functionalized
ZIF-67@SiO2
MOF
exhibited
capacities
341.0,
426.0,
342.5
mg/g
Er3+,
Y3+,
Ce3+,
respectively.
Eluents
such
HCl,
HNO3,
acetonitrile
successfully
achieved
up
five
adsorption–desorption
cycles
with
minimal
loss
efficiency.
While
are
highly
adsorption,
further
advancements
needed
reducing
equilibrium
time,
conducting
fixed-bed
column
studies,
evaluating
real-world
wastewater
support
continued
development.
IntechOpen eBooks,
Год журнала:
2024,
Номер
unknown
Опубликована: Окт. 7, 2024
Environmental
pollution
with
heavy
metals
is
one
of
the
most
important
environmental
problems
this
century.
Bioaccumulating
in
food
chain,
exhibit
high
toxicity
toward
living
organisms.
To
prevent
serious
risks
to
human
health,
eliminating
these
air,
soil,
and
water
great
importance.
The
chapter
reviews
modern
data
on
distribution
environment,
organisms,
their
toxicity,
development
new
effective
sorbents
for
removal
from
environment
A
large
number
studies
are
devoted
synthesis,
modification,
properties
sorption
materials
metals.
New
information
presented
field
application
enterosorption
method
as
promising
areas
removing
organism,
well
prophylaxis
treatment
various
diseases.
Separation Science and Technology,
Год журнала:
2024,
Номер
unknown, С. 1 - 17
Опубликована: Ноя. 4, 2024
Lactic
acid
is
readily
generated
in
bacterial
fermentations;
however,
a
significant
amount
of
processing
and
expenses
are
required
for
the
purification
lactic
fermentation
broth.
In
this
work,
sorption
from
simulated
broth
has
been
studied
by
utilizing
zirconium-based
metal-organic
framework
(Zr-UiO-66
MOF)
that
acts
as
prominent
adsorbent
due
to
its
specific
geometries
functional
groups.
The
morphological,
structural
properties
prepared
MOF
investigated
using
different
characterization
techniques
such
Field
emission
scanning
electron
microscopy
(FE-SEM),
X-ray
diffraction
(XRD)
pattern,
Fourier
transform
infrared
(FTIR)
analysis,
Brunauer-Emmett-Teller
(BET)
analysis.
results
demonstrate
accuracy
synthesis
procedure.
order
achieve
an
efficient
separation
process,
it
essential
determine
optimal
operational
conditions.
To
address
this,
response
surface
methodology
(RSM)
was
employed
devise
approach
optimizing
five
crucial
process
parameters
achieving
recovery
removal.
These
include
initial
LA
concentration
(ranging
1
36
mg.L−1),
pH
(3–10),
temperature
(25
55
°C),
mass
(0.25
g),
contact
time
(10
240
min).
RSM
analysis
revealed
quadratic
model
provided
best
fit
experimental
data,
with
high
coefficient
determination
(R2).
Three
validation
trials
were
carried
out
precision
optimization
leading
maximum
adsorption
efficiency
97.7%
being
reached
under
optimized
conditions
(initial
=
18.5
mg.L−1,
6.5,
0.625
g,
min,
40
°C).
