ChemSusChem,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Nov. 13, 2024
Abstract
Poly(heptazine
imide)
(PHI)
has
received
widely
interest
in
the
photocatalytic
CO
2
reduction
due
to
its
good
crystallinity
and
complete
in‐plane
structure.
However,
poor
photo‐induced
carrier
separation
migration
efficiency
insufficient
active
sites
results
undesirable
performance.
Herein,
we
designed
constructed
a
novel
ohmic
junction
photocatalyst
by
integrating
melamine
edge‐modified
PHI
(mel‐PHI)
with
extended
π‐conjugated
system
TiN
(TiN/mel‐PHI)
for
enhancing
activity.
Strikingly,
yield
of
optimal
TiN/mel‐PHI
is
62.64
μmol
g
−1
h
,
which
5.6
2.8
times
higher
than
(11.26
)
mel‐PHI
(22.32
),
respectively.
The
superior
activity
attributed
not
only
formation
D‐A
structure
introduction
melamine,
extends
π‐conjugation
system,
alters
electronic
PHI,
accelerates
charge
migration,
but
also
induced
internal
electric
field
further
enhances
efficiency.
Meanwhile,
synergistic
effect
enriched
electron
number
TiN,
reducing
potential.
This
work
highlights
enhancement
transfer
between
motifs
junctions,
confirming
their
potential
optimizing
photocatalysts.
Advanced Materials,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Nov. 12, 2024
Solar
water
disinfection
facilitated
by
photocatalyst
has
been
considered
a
viable
point-of-use
(POU)
method
for
mitigating
antibiotic
resistance
contaminations
at
the
household
or
community
levels.
Here,
density
functional
theory
calculations
are
used
to
guide
fabrication
of
carrier
confinement
domains
(CCD)-decorated
graphitic
carbon
nitride
(CN)
photocatalyst.
The
CCD
integration
effectively
disrupts
electron
distribution
symmetry
CN,
amplifies
its
local
density,
and
facilitates
formation
long-range
ordered
structure,
thereby
enhancing
charge
separation
efficiency.
Importantly,
directs
migration
photogenerated
carriers
specific
regions
upon
light
illumination,
minimizing
their
spatial
proximity.
As
result,
overall
reactive
oxygen
species
level
photocatalytic
system
is
markedly
elevated,
with
twelvefold
increase
in
H
Separation and Purification Technology,
Journal Year:
2024,
Volume and Issue:
345, P. 127298 - 127298
Published: March 29, 2024
Photocatalysis
is
an
efficient
process
for
degrading
organic
pollutants
and
inactivating
pathogenic
microorganisms.
However,
this
constantly
suffers
from
turbidity
shading
particle
aggregation
in
a
catalyst
suspension
system,
thereby
reducing
its
photocatalytic
activity.
Immobilizing
the
photocatalyst
on
light-transmissible
surface
viable
solution
to
obstacles.
So
far,
photo-inactivation
efficacy
between
immobilized
systems
has
yet
be
compared
investigated.
In
study,
N-TiO2
(NT)
poly-methyl-methacrylate
(PMMA)
was
fabricated
via
dip-coating
method,
which
high
transmittance
rate
of
92
%
-
better
than
all
previous
works
(50
%).
By
immobilizing
PMMA,
up
60
19
improvements
inactivation
efficiencies
against
Gram-positive
Staphylococcus
aureus
(S.
aureus)
Gram-negative
Escherichia
coli
(E.
coli)
are
achieved,
respectively,
relative
suspension.
Notably,
reactive
oxygen
species
(ROSs)
detection
results
indicate
that
5
g/L
NT
coated
PMMA
((NT-PMMA)5)
higher
intensities
singlet
(1O2),
hydroxyl
radicals
(HO•),
concentration
hydrogen
peroxide
(H2O2)
The
as-made
NT-PMMA
sustains
99.99
efficiency
(5-log-inactivation)
S.
through
five
consecutive
photocatalysis
cycles
reuse.
kinetics
E.
fit
well
with
modified
Hom
model.
Atomic
force
microscopy
observations
causes
more
severe
damage
aureus's
cell
wall
due
different
susceptibility
structure
ROSs.
This
study
paves
substantial
way
scaling
effective
pathogens
under
visible
light.
Langmuir,
Journal Year:
2025,
Volume and Issue:
unknown
Published: March 13, 2025
The
construction
of
heterostructures
promotes
extending
the
light
adsorption
range
graphitic
carbon
nitride
(g-C3N4)
materials,
improving
photogenerated
charge
carrier
separation/transfer
efficiency
for
attaining
much
enhanced
performances.
Because
defective
tungsten
oxide
(WOx)
materials
possess
rich
composition/morphology
and
an
extended
response
in
near-infrared
region,
WOx
is
a
quite
popular
nanocomponent
modifying
g-C3N4,
forming
that
can
be
used
various
photocatalytic
applications
involving
water
splitting,
CO2
reduction,
NOx
removal,
H2O2
generation,
related
chemical
to
fuel
conversion
reactions.
In
this
review,
important
aspects
WOx/g-C3N4
heterostructure
photocatalysts
are
reviewed
provide
paradigms
composition
adjustment,
structural
design,
these
materials.
growth
control
amorphous
crystalline
adjustment
on
types
(e.g.,
type
II
Z-scheme),
catalytic
performances
composite
system
also
discussed
detail.
Moreover,
effects
synthetic
methodologies
preparation
parameters
formation
two-dimensional
layered
inspiration
state-of-the-art
utilized
photoredox
challenges
prospects
future
research
summarized.
Catalysts,
Journal Year:
2025,
Volume and Issue:
15(3), P. 218 - 218
Published: Feb. 26, 2025
Given
the
growing
threat
of
pathogens
in
drinking
water,
exploring
novel
semiconductor
photocatalysts
for
effective
water
disinfection
has
become
a
critical
area
research.
Recently,
red
and
black
phosphorus
have
attracted
significant
attention
due
to
their
unique
physicochemical
properties,
making
them
well
suited
photocatalytic
disinfection.
Particularly,
recent
studies
demonstrated
that
can
be
combined
with
other
materials
improve
performance
resulting
composites.
Herein,
we
present
first
review
red-
black-phosphorus-based
This
article
begins
by
presenting
fundamental
principle
before
reviewing
latest
developments
application
this
purpose.
In
conclusion,
it
provides
summary
proposes
potential
avenues
future
research
field.
Nanoscale Horizons,
Journal Year:
2024,
Volume and Issue:
9(11), P. 1999 - 2006
Published: Jan. 1, 2024
The
synergistic
interaction
between
O
v
and
γ-MnO
2
significantly
enhanced
the
performance
of
neutral
3e
−
ORR,
exhibiting
impressive
sterilization
capabilities.
