Nanoscale,
Год журнала:
2021,
Номер
13(42), С. 17687 - 17724
Опубликована: Янв. 1, 2021
The
primitive
and
advanced
approaches
for
the
synthesis
of
various
Bi
2
O
3
polymorphs
photocatalytic
applications
are
reviewed.
temperature-dependent
phase
transformation,
morphology,
junction
in
phases
presented.
Nanoscale Horizons,
Год журнала:
2020,
Номер
5(5), С. 765 - 786
Опубликована: Янв. 1, 2020
Photocatalysis
is
attracting
increased
attention
in
solving
the
energy
crisis
and
environmental
pollution.
Graphitic
carbon
nitride
(g-C3N4),
a
non-metal
photocatalyst,
has
been
regarded
as
an
ideal
photocatalyst
to
solve
these
problems
because
of
its
chemical
stability
unique
optical
properties.
However,
traditional
g-C3N4
exhibits
moderate
photocatalytic
activity
due
low
specific
surface
area
fast
recombination
rate
photogenerated
electrons.
Among
many
modified
materials,
porous
(PCN)
can
shortcomings
PCN's
number
surface-active
sites,
area,
light
harvesting,
diffusion
adsorption/activation.
frontier,
comprehensive
summary
development
PCN
less
reported.
Thus,
review
on
recent
developments
research
urgently
needed
further
promote
advancement.
In
this
review,
synthesis
methods,
structures
properties
applications
photocatalysts
are
described
detail.
The
current
challenges
future
PCN/PCN-based
discussed.
This
may
present
up-to-date
view
provide
in-depth
understanding
PCN-based
photocatalysts.
ACS Omega,
Год журнала:
2019,
Номер
4(24), С. 20530 - 20539
Опубликована: Ноя. 25, 2019
The
current
environmental
and
potable
water
crisis
requires
technological
advancement
to
tackle
the
issues
caused
by
different
organic
pollutants.
Herein,
we
report
degradation
of
pollutants
such
as
Congo
Red
acetophenone
from
aqueous
media
using
visible
light
irradiation.
To
harvest
solar
energy
for
photocatalysis,
fabricated
a
nanohybrid
system
composed
bismuth
ferrite
nanoparticles
with
two-dimensional
(2D)
MXene
sheets,
namely,
BiFeO3
(BFO)/Ti3C2
(MXene)
nanohybrid,
enhanced
photocatalytic
activity.
hybrid
BFO/MXene
is
simple
low-cost
double-solvent
solvothermal
method.
SEM
TEM
images
showed
that
BFO
are
attached
onto
surface
2D
sheets.
achieved
found
be
100%
in
42
min
dye
(Congo
Red)
colorless
pollutant
(acetophenone)
150
min.
exhibited
large
area
147
m2
g-1
measured
via
Brunauer-Emmett-Teller
sorption-desorption
technique,
which
largest
among
all
derivatives.
photoluminescence
spectra
indicate
low
electron-hole
recombination
rate.
Fast
efficient
molecules
two
factors:
larger
lower
rate,
makes
highly
photocatalyst
promising
candidate
many
future
applications.
ACS Catalysis,
Год журнала:
2022,
Номер
12(11), С. 6345 - 6358
Опубликована: Май 12, 2022
The
construction
of
intramolecular
homojunction
in
the
carbon
nitride
framework
is
one
advantageous
methods
to
improve
photocatalytic
performance.
Based
on
molecular
self-assembly
strategy
form
homojunction,
showed
enhanced
activity.
However,
disordered
structure
pristine
g-C3N4
obtained
using
traditional
approach
inhibits
dissociation
and
migration
photocarriers.
Here,
we
adopt
a
method
prepare
crystalline
C3N4
(HCCN)
with
functional
group
modifications
ternary
by
multistep
thermal
polymerization.
band
indicates
that
cyano
cyanamide-based
units
HCCN
samples
have
different
highest
occupied
orbital/lowest
unoccupied
orbital
energy
levels,
which
constitute
special
through
arrangement
levels
an
internal
electron
field
molecule.
analysis
photoelectron–hole
pairs
performance
confirms
accelerates
interface
charge
transfer
reduces
reverse
recombination.
Moreover,
compact
greatly
improves
photogenerated
charges.
Femtosecond
transient
absorption
spectra
explain
trajectory
carrier
kinetics
confirm
crystal
semiconductor
modified
groups
can
promote
excitons
free
This
research
provides
idea
obtain
homojunctions.
Water
shortage
and
the
energy
crisis
are
two
major
global
challenges
in
this
century.
The
solution
for
water
should
be
based
on
a
sustainable
source.
Solar‐inspired
purification
is
an
efficient
green
technology
tackling
challenge
using
abundant
clean
solar
through
photothermal
evaporation‐induced
production,
photoinduced
antimicrobial
treatment,
photocatalytic
degradation
of
organic
contaminants.
2D
nanomaterials
draw
significant
attention
their
use
these
three
water‐purification
methods
because
large
surface
area,
broadband
strong
absorption
spectral
range,
transformation.
Herein,
recent
development
applied
evaporation,
capability
comprehensively
overviewed.
Various
strategies
enhancing
light‐absorption
light‐conversion
efficiency
different
presented.
perspectives
further
discussed
practical
purification.
This
Review
highlights
energy–driven
emerging
materials.
Nanoscale,
Год журнала:
2019,
Номер
11(40), С. 18797 - 18805
Опубликована: Янв. 1, 2019
CdS
nanoparticles
are
uniformly
decorated
on
plasma-modified
Ti3C2Tx
sheets
with
oxygen-containing
groups
to
achieve
a
high
photocatalytic
hydrogen-production
activity.
ACS Omega,
Год журнала:
2019,
Номер
4(5), С. 8661 - 8668
Опубликована: Май 17, 2019
Over
the
years,
scarcity
of
fresh
potable
water
has
increased
demand
for
clean
water.
Meanwhile,
with
advent
nanotechnology,
use
nanomaterials
photocatalytic
degradation
pollutants
in
wastewaters
increased.
Herein,
a
new
type
nanohybrids
La-
and
Mn-codoped
bismuth
ferrite
(BFO)
nanoparticles
embedded
into
transition-metal
carbide
sheets
(MXene-Ti3C2)
were
prepared
by
low-cost
double-solvent
sol-gel
method
investigated
their
catalytic
activity
dark
photoinduced
conditions.
The
photoluminescence
results
showed
that
pure
BFO
highest
electron
hole
recombination
rate
as
compared
to
all
codoped
BFO/Ti3C2
nanohybrids.
higher
electron-hole
pair
generation
provides
suitable
environment
fast
organic
dye
molecules.
band
gap
nanohybrid
was
tuned
1.73
eV.
Moreover,
BLFO/Ti3C2
BLFMO-5/Ti3C2
degraded
92
93%
pollutant,
respectively,
from
remaining
light
spectrum.
Therefore,
these
synthesized
could
be
promising
candidate
applications
future.
Surfaces and Interfaces,
Год журнала:
2020,
Номер
22, С. 100890 - 100890
Опубликована: Дек. 20, 2020
TiO2
has
already
established
itself
as
one
of
the
most
attractive
nanomaterials
for
functionalisation
textiles
due
to
its
unique
structural,
physicochemical,
optical
and
electrical
properties,
nontoxicity
low
cost.
This
review
paper
provides
a
comprehensive
overview
recent
advances
in
chemical
physical
modification
textile
fibres
with
nanoparticles
nano-/microstructures
summarises
important
findings
on
application
processes
performance
TiO2-modified
substrates.
Photocatalytic
self-cleaning,
antimicrobial
activity,
UV
protection,
hydrophobicity,
thermal
stability,
flame
retardancy
conductivity
are
highlighted
central
discussion
topics
review.
Insights
into
mechanisms
providing
functional
properties
presented;
influence
various
factors
functionality
is
shown;
latest
strategies
surface
enhance
visible
light
photocatalytic
including
multiphase
heterojunctions,
ion
doping,
metal
doping/loading,
coupling
other
semiconductors
sensitization,
discussed.
presents
some
new
ideas
producing
TiO2-functionalized
surfaces
suggests
future
research
perspectives
directions
this
area.