Small Science,
Journal Year:
2024,
Volume and Issue:
4(7)
Published: May 8, 2024
Long‐lasting
hydrogen
evolution
and
efficient
dew
harvest
is
realized
via
electrospinning
a
polyvinylidene
fluoride
(PVDF)
membrane
on
hybrid
hydrogels
embedded
with
photocatalytic
g‐C
3
N
4
/Pt
nanosheets.
Due
to
the
hindrance
of
water
evaporation
by
hydrophobic
PVDF
membrane,
drying
process
significantly
slows
down.
Hence,
nanosheets
can
continue
working
splitting
molecules
in
hydrogels.
When
thickness
48
μm,
rate
reach
2,543
μmol
h
−1
g
,
which
38%
more
than
that
hydrogel
without
covering.
Therefore,
covered
are
able
work
high
efficiency
for
12
h,
sufficient
during
daytime.
In
addition,
hydrophilic
construct
Janus
structure
induce
fast
transport
from
side.
It
beneficial
rapid
collection
morning.
Based
long‐lasting
harvest,
present
very
suitable
environment
rich
solar
resource
lack
supply,
such
as
desert
or
prairie.
Small Science,
Journal Year:
2024,
Volume and Issue:
4(7)
Published: May 8, 2024
Long‐lasting
hydrogen
evolution
and
efficient
dew
harvest
is
realized
via
electrospinning
a
polyvinylidene
fluoride
(PVDF)
membrane
on
hybrid
hydrogels
embedded
with
photocatalytic
g‐C
3
N
4
/Pt
nanosheets.
Due
to
the
hindrance
of
water
evaporation
by
hydrophobic
PVDF
membrane,
drying
process
significantly
slows
down.
Hence,
nanosheets
can
continue
working
splitting
molecules
in
hydrogels.
When
thickness
48
μm,
rate
reach
2,543
μmol
h
−1
g
,
which
38%
more
than
that
hydrogel
without
covering.
Therefore,
covered
are
able
work
high
efficiency
for
12
h,
sufficient
during
daytime.
In
addition,
hydrophilic
construct
Janus
structure
induce
fast
transport
from
side.
It
beneficial
rapid
collection
morning.
Based
long‐lasting
harvest,
present
very
suitable
environment
rich
solar
resource
lack
supply,
such
as
desert
or
prairie.