Crystal Research and Technology,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Sept. 8, 2024
Abstract
A
series
of
copper
hydroxyphosphate
(Cu
2
(OH)PO
4
)
microcrystals
with
different
shapes,
including
straw
sheaf‐like
microcrystals,
microrods‐assembled
microflowers,
four‐edged
arrow‐like
and
four‐pointed
star‐like
dendrites,
are
prepared
by
a
hydrothermal
method
in
Na
HPO
‐NaOH
buffer
solutions.
The
solutions
serve
as
both
reactant
solvent.
More
importantly,
the
pH
values
alkaline
significantly
affect
morphologies
Cu
microcrystals.
Four
samples
have
absorption
bands
near‐ultraviolet,
visible,
near‐infrared
regions;
furthermore,
four
exhibit
band
gap
energies
(3.06,
2.78,
2.68,
2.39
eV)
owing
to
their
structures.
This
strategy
can
be
scaled
up
for
simple,
green,
low‐cost
production
ACS Catalysis,
Journal Year:
2024,
Volume and Issue:
14(8), P. 5779 - 5787
Published: April 1, 2024
Photocatalytic
dinitrogen
(N2)
fixation
is
regarded
as
an
achievable
technology
for
ammonia
(NH3)
production.
However,
the
poor
separation
efficiency
of
photoinduced
carriers
and
ineffective
N2
activation
remain
grand
obstacles
to
high-performance
NH3
photosynthesis.
Designing
advanced
heterostructured
systems
accelerate
charge
activate
molecule
a
feasible
strategy
optimize
photocatalytic
activity.
Herein,
direct
Z-scheme
configuration
established
between
BiOBr
Bi4O5Br2
through
facile
one-step
solvothermal
reaction.
This
enables
effective
spatial
electron–hole
pairs
preserves
robust
redox
ability
carriers,
concurrently
promoting
N≡N
bond
diminishing
energy
barrier
rate-determining
step.
The
formation
BiOBr/Bi4O5Br2
heterojunctions
mostly
attributed
similarities
in
their
lattice
structures
crystal
growth
conditions.
As
result,
heterojunction
exhibits
high
yield
66.87
μmol
g–1
h–1
without
using
sacrificing
reagents,
surpassing
that
pristine
by
approximately
3.3
5.6
times,
respectively.
study
provides
approach
construct
implementing
under
mild
Advanced Functional Materials,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Sept. 10, 2024
Abstract
Graphitic
carbon
nitride
(g‐C
3
N
4
)
has
witnessed
tremendous
research
interest
due
to
its
narrow
bandgap,
intrinsic
2D
structure,
and
abundant
raw
materials.
Although
g‐C
some
shortcomings
such
as
low
specific
surface
area,
poor
conductivity
rapid
charge
carries
recombination,
various
modification
methods
are
constantly
emerging
enhance
potential
application
value
in
photocatalysis.
Increasing
the
crystallinity
of
is
an
effective
strategy
improve
in‐plane
separation
efficiency.
However,
it
also
reported
that
amorphous
possesses
a
higher
adsorption
activation
ability
over
reactants
richer
functional
groups
than
crystalline
.
Which
type
more
suits
photocatalysis,
which
method
suitable
for
boosting
activity
two
types
,
respectively?
Based
on
these
issues,
recent
advances
preparation
properties
summarized,
their
performance
improvement
strategies
overviewed
thoroughly.
Upon
systematic
comparison
analysis,
respectively,
proposed.
Their
applications
summed
up
especially
environment
remediation
energy
conversation.
Finally,
ongoing
opportunities
future
challenges
photocatalysis
territory
taken
consideration.
