Abstract
Atomic
layer
etching
(ALE)
using
the
environmentally
friendly
electronic
gas
fluoromethane
(CH
3
F)
is
guided
for
fabricating
nanoscale
components.
The
adsorptive
purification
of
CH
F
provide
a
viable
direction
to
remove
trace
amounts
impurities
produce
highly
pure
(>99.9999%)
ALE
process.
Herein,
propane
(~100
ppm)
in
F,
we
report
synergetic
thermodynamic
and
kinetic
separation
C
H
8
/CH
over
glucose‐derived
carbon
molecular
sieve
CMS‐T,
(T
as
pyrolysis
temperature).
With
pore
size
slightly
larger
than
diameter
,
CMS‐600
allows
both
strong
confined
adsorption
higher
diffusion
rate
resulting
remarkable
factor
51.1.
Breakthrough
experiment
demonstrates
high
dynamic
production
capacity
457
L
kg
−1
7
N
(<100
ppb
)
with
excellent
cycling
stability.
Adsorption
provides
feasible
approach
industrial
hyperpurification
gas.
Nanomaterials,
Год журнала:
2023,
Номер
13(7), С. 1145 - 1145
Опубликована: Март 23, 2023
Organic
dyes
and
heavy
metals
often
coexist
in
industrial
effluents,
their
simultaneous
removal
is
a
grand
challenge.
Herein,
hydrochar
MgAl
layered
double
hydroxide
(HC-MgAlLDH)
nanocomposite
was
prepared
via
facile
one-step
hydrothermal
route,
applied
to
remove
anionic
Congo
red
(CR),
cationic
Methylene
blue
(MB)
Pb(II)
from
aqueous
solutions.
The
formed
by
interweaving
amorphous
HC
crystalline
MgAlLDH
nanoplates
possessed
more
functional
groups,
lower
zeta
potential
larger
specific
surface
area
than
uncomposited
MgAlLDH.
Batch
experiments
showed
that
the
components
LDH
dominated
CR
MB
removals,
respectively,
whereas
conjointly
controlled
two
components.
maximum
Langmuir
capacities
of
sole
CR,
MB,
or
were
348.78,
256.54
33.55
mg/g.
In
binary
ternary
systems,
only
slightly
decreased,
while
capacity
increased
41.13-88.61%.
increase
related
coordination
with
sulfur-containing
groups
precipitation
PbSO4.
Therefore,
involved
synergistic
effect,
including
electrostatic
adsorption,
π-π
interaction,
precipitation.
present
work
shows
HC-MgAlLDH
has
great
for
wastewater
integrative
treatment.
Abstract
Atomic
layer
etching
(ALE)
using
the
environmentally
friendly
electronic
gas
fluoromethane
(CH
3
F)
is
guided
for
fabricating
nanoscale
components.
The
adsorptive
purification
of
CH
F
provide
a
viable
direction
to
remove
trace
amounts
impurities
produce
highly
pure
(>99.9999%)
ALE
process.
Herein,
propane
(~100
ppm)
in
F,
we
report
synergetic
thermodynamic
and
kinetic
separation
C
H
8
/CH
over
glucose‐derived
carbon
molecular
sieve
CMS‐T,
(T
as
pyrolysis
temperature).
With
pore
size
slightly
larger
than
diameter
,
CMS‐600
allows
both
strong
confined
adsorption
higher
diffusion
rate
resulting
remarkable
factor
51.1.
Breakthrough
experiment
demonstrates
high
dynamic
production
capacity
457
L
kg
−1
7
N
(<100
ppb
)
with
excellent
cycling
stability.
Adsorption
provides
feasible
approach
industrial
hyperpurification
gas.
