Ti3+
defective
TiO2
nanoparticles
(TiO2-N)
were
synthesized
through
slow
hydrolyzation
of
tetrabutyl
titanate
and
low-temperature
annealing,
followed
by
loading
on
self-pillared
pentasil
(SPP)
zeolite
nanosheets
to
construct
a
TiO2/zeolite
hybrid
composite
solid-state
dispersion.
The
obtained
TiO2-N/SPP
exhibited
distinct
red-shift
in
the
UV-vis
absorption
spectrum
significantly
reduced
band
gap
due
introduced
defects
consequent
oxygen
vacancies
(VO),
leading
an
enhanced
visible-light
responsivity.
diverse
porosity
house-of-cards
nanosheet
morphology
SPP
support
not
only
promoted
efficient
stable
immobilization
TiO2-N
nanoparicles
micropore
migration
surface
adhesion
but
also
endowed
adsorbability
composite.
adsorptive
photodegradation
methylene
blue
(MB)
was
used
evaluated
photocatalytic
performance
TiO2-N/SPP,
95.6%
degradation
rate
MB
observed
after
3
h
illumination
with
visible-light.
effect
strongly
accessibility
molecules
active
species,
remarkable
enhancement
efficiency.
Moreover,
superior
recyclability
embodied
retention
96.4%
activity
three
regeneration
cycles
indicated
be
practical
for
water
pollutant
degradation.
Catalysts,
Год журнала:
2025,
Номер
15(2), С. 159 - 159
Опубликована: Фев. 9, 2025
In
recent
years,
efforts
have
been
made
in
developing
new
and
more
efficient
water
purification
methods
the
synthesis
of
catalysts
with
greater
catalytic
activity
that
are
stable
can
be
used
wide
pH
ranges.
Pillared
clays
represent
a
viable
alternative
for
removing
organic
contaminants.
The
clays,
usually
smectites,
modified
by
inserting
inorganic
pillars
(Al,
Zr,
Cr,
Fe,
Ti,
Ga,
Mn)
between
layers
clay,
increasing
its
surface
area,
porosity,
activity,
thermal
stability.
This
review
describes
importance
using
pillared
different
polyoxycations
Fenton,
photo-Fenton,
ozonation,
wet
oxidation
hydrogen
peroxide,
photocatalysis
processes.
iron
(Fe-PILCs)
promising
capable
generating
hydroxyl
radicals
oxidize
contaminants,
thus
facilitating
their
removal.
current
challenges
PILC
application
at
industrial
scale
also
discussed.
Journal of Water Process Engineering,
Год журнала:
2023,
Номер
52, С. 103494 - 103494
Опубликована: Янв. 16, 2023
The
presence
of
emerging
pollutants
(EPs)
in
water
is
a
major
environmental
concern.
This
study
evaluates
for
the
first
time
removal
three
EPs,
namely
triclosan
(TCS),
2,6-dichlorophenol
(2,6-DCP),
and
bisphenol
A
(BPA),
90
μmol/dm3,
from
through
both
Fenton-
photo-Fenton-like
reactions
using
montmorillonite
(Mt)
aluminum
interlayered
pillared
clays
(Al-PILC)
as
catalytic
supports.
catalysts
(Fe2O3/TiO2/Mt
Fe2O3/TiO2/Al-PILC)
were
evaluated
single-component
solutions
an
equimolar
mixture.
Two
Al-PILC
synthesized
hazardous
waste,
saline
slag,
either
acid
(Al-PILCAE)
or
alkaline
(Al-PILCBE)
extract
precursors.
third
was
obtained
by
conventional
method
commercial
salt
(Al-PILCCM).
Catalytic
supports
impregnated
at
10
20
wt%
titanium.
Iron
loadings
1
to
tested
Mt,
while
only
iron
Al-PILC.
All
characterized
several
techniques
results
confirmed
formation
TiO2
Fe2O3.
Almost
100
%
TCS
2,6-DCP
removed
Fenton-like
(240
420
min,
respectively)
(30
90–120
based
catalyst.
maximum
BPA
80.14
±
1.93
after
120
min
under
conditions
Al-PILCBE.
four
showed
good
processes,
best
Al-PILCAE
Al-PILCBE
Finally,
degradation
pathway
suggested
every
pollutant
on
by-products
identified
during
HPLC-MS.
revealed
that
materials
used
this
work
are
suitable
removing
reactions.
Energies,
Год журнала:
2022,
Номер
15(15), С. 5607 - 5607
Опубликована: Авг. 2, 2022
Although
they
are
of
significant
importance
for
environmental
applications,
the
industrialization
photocatalytic
techniques
still
faces
many
difficulties,
and
most
urgent
concern
is
cost
control.
Natural
minerals
possess
abundant
chemical
inertia
cost-efficiency,
which
suitable
hybridizing
with
various
effective
photocatalysts.
The
use
natural
in
systems
can
not
only
significantly
decrease
pure
photocatalyst
dosage
but
also
produce
a
favorable
synergistic
effect
between
mineral
substrate.
This
review
article
discusses
current
progress
regarding
classes
applications.
Owing
to
their
unique
structures,
large
surface
area,
negatively
charged
surface,
silicate
could
enhance
adsorption
capacity,
reduce
particle
aggregation,
promote
photogenerated
electron-hole
pair
separation
hybrid
Moreover,
controlling
morphology
structure
properties
these
materials
have
great
influence
on
light-harvesting
ability
activity.
Composed
silica
alumina
or
magnesia,
some
orderly
organized
porous
layered
proper
templates
modify
framework.
non-silicate
(referred
carbonate
carbon-based
minerals,
sulfate,
sulfide
other
special
minerals)
function
as
catalyst
supports
photocatalysts
after
modification
due
formula
impurities.
dye-sensitized
another
application
photocatalysis,
proved
be
superior
hydrogen
evolution
wastewater
treatment.
work
aims
provide
complete
research
overview
mineral-supported
summarizes
common
effects
different
substrates
well
inspire
more
possibilities
photocatalysis.
Catalysis Reviews,
Год журнала:
2023,
Номер
66(5), С. 2063 - 2110
Опубликована: Фев. 23, 2023
Conventional
wastewater
treatment
plants
do
not
currently
remove
all
organic
compounds,
including
some
emerging
pollutants.
This
has
prompted
several
efforts
to
develop
new
methods
and
materials—or
improve
existing
ones—to
such
The
technologies
studied
contaminants
from
water
include
photochemical
processes
in
which
the
photons
activate
a
material
produce
radicals,
go
on
initiate
series
of
reactions
that
result
oxidation
pollutant.
Several
photocatalysts
catalyst
supports
have
been
used;
these
clays
pillared
interlayered
(PILC),
shown
interesting
results
photodegradation
contaminants.
In
this
review,
we
describe
studies
used
both
PILC
for
compounds
aqueous
solutions.
reported
are
summarized
compared,
thus
confirming
findings
support
use
systems
as
they
successful
promising
materials
removal
compounds.
aspect,
synthesis
procedures
can
be
proposed
Heterostructures
MOF
based
clays.
