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 Methods,
Journal Year:
2023,
Volume and Issue:
8(2)
Published: Sept. 15, 2023
Abstract
Coupling
the
hydrogen
evolution
reaction
with
plastic
waste
photoreforming
provides
a
synergistic
path
for
simultaneous
production
of
green
and
recycling
post‐consumer
products,
two
major
enablers
establishment
circular
economy.
Graphitic
carbon
nitride
(
g
‐C
3
N
4
)
is
promising
photocatalyst
due
to
its
suitable
optoelectronic
physicochemical
properties,
inexpensive
fabrication.
Herein,
mechanistic
investigation
structure‐activity
relationship
poly(ethylene
terephthalate)
(PET)
reported
by
carefully
controlling
fabrication
from
subset
earth‐abundant
precursors,
such
as
dicyandiamide,
melamine,
urea,
thiourea.
These
findings
reveal
that
melamine‐derived
wt.%
Pt
has
significantly
higher
performance
than
alternative
derivations,
achieving
maximum
rate
7.33
mmol
H2
cat
−1
h
,
simultaneously
photoconverting
PET
into
valuable
organic
products
including
formate,
glyoxal,
acetate,
excellent
stability
over
30
continuous
production.
This
attributed
crystallinity
associated
chemical
resistance
playing
role
in
stabilization
morphology
surface
properties.
new
insights
on
precursors
structural
properties
dictating
photoactivity
set
foundation
further
development
photocatalytic
processes
combined
reforming.
Materials Reports Energy,
Journal Year:
2023,
Volume and Issue:
3(4), P. 100235 - 100235
Published: Oct. 27, 2023
Due
to
the
abundance
and
sustainability
of
solar
energy,
converting
it
into
chemical
energy
obtain
clean
presents
an
ideal
solution
for
addressing
environmental
pollution
shortages
stemming
from
extensive
combustion
fossil
fuels.
In
recent
years,
hydrogen
has
emerged
on
stage
history
as
most
promising
carrier
21st
century.
Among
current
methods
producing
hydrogen,
photocatalytic
production
technology,
a
zero-carbon
approach
high
calorific
value
pollution-free
attracted
much
attention
since
its
discovery.
As
core
photocatalysis
semiconductor
photocatalysts
are
always
research
hotspots.
them,
graphite-phase
carbon
nitride
(g-C3N4),
organic
material
composed
only
C
N
elements,
possesses
physicochemical
properties
incomparable
those
traditional
inorganic
materials,
including
suitable
band
positions,
easy
structural
regulation,
inexpensive
raw
materials
abundant
reserves,
simple
preparation,
thermal/mechanical/chemical
stability,
etc.
Therefore,
g-C3N4
in
field
last
two
decades.
This
review
comprehensively
outlines
trajectory
production,
encompassing
development,
preparation
methods,
advantages,
disadvantages.
A
concise
introduction
is
provided,
well
analysis
underlying
mechanism
system.
Additionally,
delves
latest
techniques
enhance
performance,
nanostructure
design,
elemental
doping,
heterojunction
construction.
The
applications
based
surveyed,
underscoring
significance
catalyst
active
sites
synthesis
pathways.
At
length,
concluded
insights
challenges
opportunities
presented
by
achieving
heightened
production.
