Applied Surface Science Advances,
Год журнала:
2023,
Номер
18, С. 100490 - 100490
Опубликована: Ноя. 16, 2023
In
this
work,
the
application
of
Zeolitic
Imidazolate
Framework
(ZIF-8)
as
a
CO2
sensing
material
is
investigated.
The
ball
milling
technique,
green
and
solvent-free
alternative,
was
applied
for
synthesis
deposition
on
substrate,
made
carbon
cloth.
synthesized
ZIF-8
via
exhibits
excellent
adsorption
detection
characteristics,
demonstrated
through
fluorescence
measurements
with
82%
reduction
in
intensity
upon
exposure.
To
inspect
structural
morphology,
crystallinity,
pore
size
sample,
characterization
tests
including
XRD,
FTIR,
BET,
FE-SEM
were
conducted.
revealed
formation
new
phase
(ZIF-L)
using
procedure.
Additionally,
MOF
coated
cloth
substrate
at
different
speeds:
100
rpm,
300
rpm
500
rpm.
MOF-coated
substrates
characterized
SEM
EDS
analysis
to
confirm
attachment
substrates.
Gas
chromatography
conducted
assess
capability
absorb
CO2.
produced
speed
exhibited
favorable
coating
concentration
53.46%,
thus,
making
it
suitable
deployment
layer
miniature
gas
sensor.
Environmental Science & Technology,
Год журнала:
2024,
Номер
58(18), С. 8009 - 8019
Опубликована: Апрель 1, 2024
With
the
increasing
use
of
metal–organic
frameworks
(MOFs),
they
will
inevitably
enter
environment
intentionally
or
unintentionally.
However,
effects
MOFs
on
plant
growth
are
poorly
understood.
Here,
we
investigated
exposure
rhizosphere
to
growth.
MIL-101(Cr)
was
selected
as
a
research
model
due
its
commercial
availability
and
wide
use.
Soybean
plants
at
two-leaf
stage
were
subjected
various
durations
(1–7
days)
concentrations
(0–1000
mg/L)
in
hydroculture
with
control
group
treated
ultrapure
water.
We
found
that
had
positive
effect
soybean
lower
dose
(i.e.,
200
mg/L);
however,
higher
doses
500
1000
mg/L),
it
exhibited
significant
toxicity
growth,
which
is
evidenced
by
leaf
damage.
To
investigate
mechanism
this
effect,
used
Cr
an
indicator
quantify,
track,
image
laser
ablation
inductively
coupled
plasma
mass
spectrometry
(LA-ICP-MS).
Results
indicated
primarily
accumulated
cortex
roots
(up
40
times
than
stems),
limited
translocation
stems
negligible
presence
leaves
cotyledons.
In
addition,
metabolomic
analysis
soybeans
low-dose
could
increase
sucrose
content
promote
while
high
induce
lipid
oxidation
roots.
This
study
provides
valuable
insights
into
ecological
toxicology
underscores
importance
assessing
their
environmental
impact
for
sustainable
agricultural
practices.
ACS Applied Materials & Interfaces,
Год журнала:
2025,
Номер
17(2), С. 3952 - 3961
Опубликована: Янв. 7, 2025
Metal–organic
frameworks
(MOFs)
combined
with
polymers
as
hybrid
materials
offer
numerous
advantages
such
enhanced
performances
through
synergistic
effects
at
their
interface.
The
primary
challenge
in
developing
polymer/MOF
matrix
films
is
ensuring
optimal
dispersion
and
strong
adhesion
of
crystalline
MOFs
to
the
polymer
without
aggregation,
weak
interaction,
or
phase
separation.
In
this
study,
hierarchically
porous
UiO-66_NH2/chitosan
(ZrCSx-f)
were
designed
by
crystallizing
UiO-66_NH2
within
a
chitosan
(CS)
skeleton.
resulting
ZrCSx-f
displayed
remarkable
homogeneity
high
loadings
crystals,
up
45
wt
%,
coupled
adsorption
capacity
iodine
gas
phase,
317
mg.g–1.
Currently,
designing
highly
efficient
catalysts
for
biomass
hydrogenation
at
low
temperatures
remains
a
significant
challenge.
This
paper
proposes
straightforward
solvent-treatment
strategy
to
create
rich
oxygen
vacancies
(OV),
facilitating
the
loading
of
ultra-small
(1.6
nm)
Pt
nanoparticles
(NPs)
onto
metal-organic
framework
(MOF)
(LaQS)
with
OV
(LaOV-r).
Consequently,
bifunctional
Pt2/LaOV-r
catalyst,
featuring
Lewis
acid
and
metal
sites,
was
synthesized.
Under
mild
conditions
(80
°C),
catalyst
exhibited
catalytic
yield
>99%
in
converting
biobased
ethyl
acetylpropionate
[ethyl
levulinate
(EL)]
valerolactone
[γ-valerolactone
(GVL)].
3.2
13.3
times
higher
than
those
measured
by
Pt2/LaQS
commercial
Pt/C
catalysts,
respectively.
Specifically,
catalyzed
full
conversion
EL
GVL
even
room
temperature.
The
results
revealed
that
synergistic
effect
between
NPs
MOF
is
important
into
GVL.
Especially,
abundant
defects
LaOV-r
not
only
enhanced
electron
cloud
density
active
sites
hydrogenation,
but
also
elevated
content
moderately-strong
acidic
sites.
enhances
ability
activate
H2
EL,
promotes
intra-molecular
dehydration
intermediates
mechanism
MOFs
proposed.
study
presents
an
effective
defect
engineering
aimed
enhancing
using
MOFs-loaded
NPs.
