Abstract
Homostructure
construction
has
been
proven
to
be
an
effective
method
for
boosting
the
photocatalytic
activity
of
polymeric
carbon
nitride.
However,
contribution
intrinsic
molecular
fragments
in
catalytic
performance
homostructured
nitride
is
yet
explored.
In
this
paper,
a
facile
hydrogen‐assisted
strategy
was
used
synthesize
triazine/heptazine
intermolecular
homojunctions
(g‐C
3
N
4
(MU−H))
with
ultrathin
and
defective
structure,
via
co‐pyrolysis
melamine
urea
precursors.
Experimental
characterizations
theoretical
calculations
indicated
copolymerization
triazine‐
heptazine‐based
generated
interface
large
build‐in
electric
field
efficient
separation
photogenerated
carriers.
Owing
synergestic
effect
between
nitrogen
vacancies,
as‐synethesized
g‐C
(MU−H)
exhibited
outstanding
CO
2
reduction,
14.45
μmol
h
−1
yield,
which
23.5
3.64
times
higher
than
those
bulk
(M−H)
synthesized
from
single
precursor,
respectively.
study,
We
provided
novel
route
optimizing
charge
efficiency
photoreduction
catalysts
by
constructing
intramolecular
homojunction.
Catalysts,
Год журнала:
2024,
Номер
14(6), С. 374 - 374
Опубликована: Июнь 12, 2024
Photocatalytic
technology,
which
is
regarded
as
a
green
route
to
transform
solar
energy
into
chemical
fuels,
plays
an
important
role
in
the
fields
of
and
environmental
protection.
An
emerging
S-scheme
heterojunction
with
tightly
coupled
interface,
whose
photocatalytic
efficiency
exceeds
those
conventional
type
II
Z-scheme
photocatalysts,
has
received
much
attention
due
its
rapid
charge
carrier
separation
strong
redox
capacity.
This
review
provides
systematic
description
photocatalysis,
including
development,
reaction
mechanisms,
preparation,
characterization
methods.
In
addition,
photocatalysts
for
CO2
reduction
are
described
detail
by
categorizing
them
0D/1D,
0D/2D,
0D/3D,
2D/2D,
2D/3D.
Finally,
some
defects
heterojunctions
pointed
out,
future
development
proposed.
New Journal of Chemistry,
Год журнала:
2024,
Номер
48(24), С. 10863 - 10872
Опубликована: Янв. 1, 2024
Zn
3
In
2
S
6
(ZIS)
doped
with
Cd
2+
and
heterojunction
construction
g-C
N
4
(GCN)
can
synergistically
improve
photocatalytic
activity.
The
H
production
rate
of
5%
GCN/Cd/ZIS
composite
reach
3.34
mmol
g
−1
h
.
