ACS Applied Nano Materials,
Journal Year:
2022,
Volume and Issue:
5(5), P. 6055 - 6082
Published: April 15, 2022
Porphyrin-based
materials
are
excellent
chromophores
because
they
strongly
absorb
visible
light
and
their
relatively
low-energy
lowest
unoccupied
molecular
orbitals
thermodynamically
favor
photoinduced
electron
transfer.
They
can
generate
charge-transfer
excited
states
with
without
cocatalyst(s)
ease
energy
transfer
ultrafast
excitation
migration.
Combined
synthetic
accessibility,
these
qualities
make
them
ideal
building
blocks
for
porous
metal–organic
framework
(MOF)-
covalent–organic
(COF)-based
photocatalysts
to
produce
solar
fuels.
This
review
first
describes
the
structures
of
most
common
porphyrinic
MOFs
COFs
excited-state
properties
semiconducting
behavior
as
well
that
derived
composites.
The
generally
accepted
mechanisms
formation
H2,
CH4
derivatives,
N2
then
reviewed,
followed
by
detailed
examples
nano-MOFs
nano-COFs
used
said
purpose:
characteristic
parameters
such
rates
production,
turnover
numbers
(TONs),
frequencies
(TOFs),
apparent
quantum
efficiencies
described
compared.
shows
porphyrin-based
efficient
solar-fuel-producing
photocatalysts,
characteristics
comparable
those
nonporphyrinic
MOF
COF
although,
on
some
occasions,
production
fall
short
record
values.
Conversely,
exhibit
greatest
TONs
TOFs
any
or
but
still
face
shortcomings
concerning
selectivity
in
many
possible
side
products.
Importantly,
while
best
rate
photoproduction
fuels
has
been
observed
from
nanoscale
there
seem
be
no
drastic
differences
(within
μmol–1
h–1
mmol
g–1
h–1)
between
microscale
heterogeneous
photocatalysts.
observation
suggests
more
active
sites
mostly
located
at
near
surface
particles.
Overall,
nanosized
show
rich
promising
photocatalytic
generating
have
room
improvement.
Materials Chemistry Frontiers,
Journal Year:
2023,
Volume and Issue:
7(16), P. 3298 - 3331
Published: Jan. 1, 2023
This
review
provides
an
overview
of
the
recent
advances
in
heterogeneous
catalysis
using
COFs,
primarily
from
2020
to
2023,
covering
fundamentals,
advantages,
current
challenges,
and
future
perspectives.
Angewandte Chemie International Edition,
Journal Year:
2023,
Volume and Issue:
62(11)
Published: Jan. 14, 2023
High-efficiency
photocatalysts
based
on
metal-organic
frameworks
(MOFs)
are
often
limited
by
poor
charge
separation
and
slow
charge-transfer
kinetics.
Herein,
a
novel
MOF
photocatalyst
is
successfully
constructed
encapsulating
C60
into
nano-sized
zirconium-based
MOF,
NU-901.
By
virtue
of
host-guest
interactions
uneven
distribution,
substantial
electrostatic
potential
difference
set-up
in
@NU-901.
The
direct
consequence
robust
built-in
electric
field,
which
tends
to
be
10.7
times
higher
@NU-901
than
that
found
In
the
catalyst,
photogenerated
carriers
efficiently
separated
transported
surface.
For
example,
photocatalytic
hydrogen
evolution
reaches
22.3
mmol
g-1
h-1
for
@NU-901,
among
highest
values
MOFs.
Our
concept
enhancing
harnessing
constitutes
promising
strategy
design
efficient
solar-to-chemical
energy
conversion.
Advanced Materials,
Journal Year:
2024,
Volume and Issue:
36(26)
Published: April 8, 2024
Abstract
Metal‐organic
frameworks
(MOFs)
have
emerged
as
promising
platforms
for
photocatalytic
hydrogen
evolution
reaction
(HER)
due
to
their
fascinating
physiochemical
properties.
Rationally
engineering
the
compositions
and
structures
of
MOFs
can
provide
abundant
opportunities
optimization.
In
recent
years,
high‐entropy
materials
(HEMs)
demonstrated
great
potential
in
energy
environment
fields.
However,
there
is
still
no
report
on
development
(HE‐MOFs)
HER
aqueous
solution.
Herein,
authors
synthesis
a
novel
p
‐type
HE‐MOFs
single
crystal
(HE‐MOF‐SC)
corresponding
nanosheets
(HE‐MOF‐NS)
capable
realizing
visible‐light‐driven
HER.
Both
HE‐MOF‐SC
HE‐MOF‐NS
exhibit
higher
activity
than
all
single‐metal
MOFs,
which
are
supposed
be
ascribed
interplay
between
different
metal
nodes
that
enables
more
efficient
charge
transfer.
Moreover,
impressively,
demonstrates
much
its
thin
thickness
enhanced
surface
area.
At
optimum
conditions,
rate
H
2
≈13.24
mmol
h
−1
g
,
among
highest
values
reported
water‐stable
MOF
photocatalysts.
This
work
highlights
importance
developing
advanced
toward
photocatalysis.
Angewandte Chemie International Edition,
Journal Year:
2024,
Volume and Issue:
63(15)
Published: Jan. 19, 2024
Abstract
Photocatalytic
water
splitting
to
hydrogen
is
a
highly
promising
method
meet
the
surging
energy
consumption
globally
through
environmentally
friendly
means.
As
initial
step
before
photocatalysis,
harvesting
photons
from
sunlight
crucially
important,
thus
making
design
of
photosensitizers
with
visible
even
near‐infrared
(NIR)
absorptions
get
more
and
attentions.
In
past
three
years,
organic
donor/acceptor
(D/A)
heterojunctions
extending
950
nm,
have
emerged
as
new
star
light‐harvesting
materials
for
photocatalytic
splitting,
demonstrating
exciting
advantages
over
inorganic
in
solar
light
utilization,
yielding
rate,
etc.
This
Minireview
firstly
gives
brief
discussion
about
principle
processes
determining
factors
photovoltaic
D/A
heterojunction
photosensitizers.
Thereafter,
current
progress
summarized
details
by
introducing
typical
excellent
heterojunction‐based
systems.
Finally,
not
only
great
prospects
but
also
most
challenging
issues
confronted
are
indicated
along
perspective
on
opportunities
directions
future
material
explorations.
Materials Chemistry Frontiers,
Journal Year:
2024,
Volume and Issue:
8(6), P. 1513 - 1535
Published: Jan. 1, 2024
Covalent
organic
frameworks
(COFs)
with
permanent
porosity,
long-range
order
and
rigid
backbones
offer
a
promising
material
platform
for
photocatalytic
water
splitting
hydrogen
production.
