Desalination and Water Treatment,
Год журнала:
2024,
Номер
318, С. 100384 - 100384
Опубликована: Апрель 1, 2024
Advanced
oxidation
processes
(AOPs)
have
become
increasingly
more
useful
and
necessary
in
the
past
few
decades
because
they
can
degrade
a
wide
range
of
organic
inorganic
contaminants.
The
toxic
recalcitrant
nature
many
contaminants
obstruct
traditional
biological
processes,
making
treatment
ineffective.
Therefore,
there
is
pressing
need
to
develop
apply
effective
for
industrial
wastewater,
polluted
by
pharmaceuticals,
dyes,
other
industries.
AOPs
successful
technologies
treating
wastewater
remove
contaminants,
reduce
toxicity,
improve
biodegradability,
including
using
ultraviolet
(UV)
visible
light
(VIS)
combined
with
homogenous
or
heterogeneous
catalysts.
This
review
shows
that
Fenton
process
semiconductor
material
greatly
facilitates
removing
various
pollutants.
Additionally,
photocatalysis
research
ongoing
this
method
effectively
removes
emerging
In
addition,
challenges,
needs,
future
uses
are
described
performance
hasten
large-scale
implementation
water
treatment.
Nanomaterials,
Год журнала:
2022,
Номер
12(2), С. 294 - 294
Опубликована: Янв. 17, 2022
g-C3N4
has
drawn
lots
of
attention
due
to
its
photocatalytic
activity,
low-cost
and
facile
synthesis,
interesting
layered
structure.
However,
improve
some
the
properties
g-C3N4,
such
as
photochemical
stability,
electrical
band
structure,
decrease
charge
recombination
rate,
towards
effective
light-harvesting,
g-C3N4–metal
oxide-based
heterojunctions
have
been
introduced.
In
this
review,
we
initially
discussed
preparation,
modification,
physical
then,
combination
with
various
metal
oxides
TiO2,
ZnO,
FeO,
Fe2O3,
Fe3O4,
WO3,
SnO,
SnO2,
etc.
We
summarized
their
characteristic
these
heterojunctions,
optical
features,
performance,
edge
positions.
This
review
covers
recent
advances,
including
applications
in
water
splitting,
CO2
reduction,
photodegradation
organic
pollutants,
sensors,
bacterial
disinfection,
supercapacitors.
show
that
can
efficiency
bare
make
composites
suitable
for
a
wide
range
applications.
Finally,
provides
perspectives,
limitations,
challenges
investigation
g-C3N4–metal-oxide-based
heterojunctions.
Materials,
Год журнала:
2021,
Номер
14(7), С. 1645 - 1645
Опубликована: Март 27, 2021
Photocatalysis
based
technologies
have
a
key
role
in
addressing
important
challenges
of
the
ecological
transition,
such
as
environment
remediation
and
conversion
renewable
energies.
Photocatalysts
can
fact
be
used
hydrogen
(H2)
production
(e.g.,
via
water
splitting
or
photo-reforming
organic
substrates),
CO2
reduction,
pollution
mitigation
air
oxidation
(photodegradation)
pollutants.
Titanium
dioxide
(TiO2)
is
“benchmark”
photocatalyst,
thanks
to
many
favorable
characteristics.
We
here
review
basic
knowledge
on
charge
carrier
processes
that
define
optical
photophysical
properties
intrinsic
TiO2.
describe
main
characteristics
advantages
TiO2
followed
by
summary
historical
facts
about
its
application.
Next,
dynamics
photogenerated
electrons
holes
reviewed,
including
energy
levels
trapping
states,
separation
recombination.
A
section
absorption
follows,
discussion
photoluminescence
effect
molecular
oxygen
(O2)
radiative
next
summarize
elementary
photocatalytic
aqueous
solution,
photogeneration
reactive
species
(ROS)
evolution
reaction.
pinpoint
limitations
possible
ways
overcome
them
discussing
some
“hottest”
research
trends
toward
solar
production,
which
are
classified
two
categories:
(1)
approaches
use
engineered
without
any
cocatalysts.
Discussed
topics
highly-reduced
“black
TiO2”,
grey
colored
TiO2,
surface-engineered
anatase
nanocrystals;
(2)
strategies
heterojunction
photocatalysts,
where
electronically
coupled
with
different
material
acting
cocatalyst
sensitizer.
Examples
discussed
include
composites
heterostructures
metals
Pt-TiO2,
Au-TiO2),
other
metal
oxides
Cu2O,
NiO,
etc.),
direct
Z-scheme
heterojunctions
g-C3N4
(graphitic
carbon
nitride)
dye-sensitized
Chemical Society Reviews,
Год журнала:
2021,
Номер
50(7), С. 4684 - 4729
Опубликована: Янв. 1, 2021
To
harvest
the
unique
properties
offered
by
2D
HSs,
creation
of
well-defined
heterointerfaces
on
a
large
scale
is
prerequisite,
where
chemistry
and
nature
define
targeted
applications.
Advanced Functional Materials,
Год журнала:
2022,
Номер
32(29)
Опубликована: Фев. 23, 2022
Abstract
Sparked
by
natural
photosynthesis,
solar
photocatalysis
using
metal‐free
graphitic
carbon
nitride
(g‐C
3
N
4
)
with
appealing
electronic
structure
has
turned
up
as
the
most
captivating
technique
to
quest
for
sustainable
energy
generation
and
pollution‐free
environment.
Nonetheless,
low‐dimensional
g‐C
is
thwarted
from
sluggish
kinetics
rapid
recombination
of
photogenerated
carriers
upon
light
irradiation.
Among
multifarious
modification
strategies,
engineering
2D
cocatalysts
anticipated
accelerate
redox
kinetics,
augment
active
sites
ameliorate
electron–hole
separation
boosted
activity
thanks
its
face‐to‐face
contact
surface.
It
timely
technological
significance
review
2D/2D
interfaces
state‐of‐the‐art
cocatalysts,
spanning
carbon‐containing
phosphorus‐containing,
metal
dichalcogenide,
other
cocatalysts.
Fundamental
principles
each
photocatalytic
application
will
be
introduced.
Thereafter,
recent
advances
cocatalyst‐mediated
systems
critically
evaluated
based
on
their
interfacial
engineering,
emerging
roles,
impacts
toward
stability
catalytic
efficiency.
Importantly,
mechanistic
insights
into
charge
dynamics
structure–performance
relationship
deciphered.
Last,
noteworthy
research
directions
are
prospected
deliver
insightful
ideas
future
development
.
Overall,
this
serve
a
scaffold
cornerstone
in
designing
dimensionality‐dependent
cocatalyst‐assisted
renewable
ecologically
green
