Advanced Functional Materials,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Dec. 1, 2024
Abstract
The
production
of
bio‐alcohol
is
increasingly
gaining
international
attention
due
to
its
potential
as
a
viable
alternative
fossil
fuels
and
ability
mitigate
carbon
dioxide
emissions.
However,
the
cost
almost
double
that
fuels,
primarily
because
low
yield
purification
process.
Herein,
high‐performance
scalable
organosilicon
membrane
with
high
chain
flexibility
controllable
crosslinking
density
developed
for
energy‐efficient
alcohol
purification.
synthesized
achieves
an
ultrahigh
total
flux
(5.8
kg·m
−2
·h
−1
)
comparable
separation
factor
(8.7)
ethanol/water
separation,
outperforming
most
state‐of‐the‐art
polymer‐based
membranes.
Integrated
experiments
molecular
dynamics
simulations
confirm
ultrafast
permeation
originates
from
flexibility,
large
fractional
free
volume,
weak
interactions
between
feed
molecules
universal
applicability
low‐crosslinking
mechanism
formation
membranes
also
validated.
Moreover,
efficiency
scalability
in
production,
along
stability
casting
solution,
offer
promising
prospects
industrial
applications.
