Separations,
Journal Year:
2023,
Volume and Issue:
10(8), P. 440 - 440
Published: Aug. 3, 2023
In
this
work,
iron
oxalate
from
converter
slag
(FeOX-Slag)
was
produced
by
extraction
of
using
oxalic
acid,
followed
photo-reduction.
The
FeOX-Slag
sample
subjected
to
various
characterization
techniques,
including
X-ray
diffraction
(XRD),
Raman
spectroscopy,
scanning
electron
microscopy
with
energy-dispersive
spectroscopy
(SEM-EDX),
ultraviolet–visible
diffuse
reflectance
(UV-DRS),
photoluminescence
(PL),
absorption
near-edge
structure
(XANES),
and
photoelectron
(XPS),
in
order
gain
insights
into
its
physicochemical
properties.
Also,
compare
the
photocatalytic
activity
FeOX-Slag,
commercial
oxide
(Fe2O3)
used
as
a
precursor
produce
normal
(FeOX-Fe2O3).
obtained
applied
degradation
rhodamine
B
(RhB),
model
organic
contaminant
wastewater,
compared
FeOX-Fe2O3.
Using
we
were
able
degrade
RhB
more
than
98%
within
90
min
at
reaction
rate
constant
about
3.6
times
faster
Photoluminescence
results
confirmed
less
recombination
electron–hole
pairs
FeOX-Fe2O3,
which
may
be
due
defect
guest
metal
impurities.
higher
separation
transportation
photogenerated
cause
enhancement
FeOX-Slag.
addition,
showed
light
ability
resulting
performance.
Thus,
optical
properties
tests
led
proposal
that
process
for
under
irradiation.
Catalysts,
Journal Year:
2025,
Volume and Issue:
15(1), P. 88 - 88
Published: Jan. 18, 2025
Bentonite-supported
TiO2
(Montmorillonite
(MMT)-TiO2)
and
Cu3TiO5
oxides
(MMT-Cu3TiO5)
nanomaterials
were
synthesized
via
a
facile
sustainable
sol–gel
synthesis
approach.
The
XRD
results
indicate
the
presence
of
mixed
phases,
namely,
anatase
new
semiconductor,
Cu3TiO5,
in
material.
specific
surface
area
(SBET)
exhibits
notable
increase
with
incorporation
rising
from
85
m2/g
for
pure
montmorillonite
to
245
MMT-TiO2
279
MMT-Cu3TiO5.
lower
gap
energy
MMT-Cu3TiO5
(2.15
eV)
comparison
(2.7
indicates
that
is
capable
more
efficient
absorption
visible
light
longer
wavelengths.
immobilization
on
bentonite
not
only
enhances
textural
properties
samples
but
also
augments
their
capabilities,
rendering
them
potentially
efficacious
adsorption
photocatalytic
applications.
efficacy
both
was
evaluated
through
monitoring
degradation
Orange
G,
an
anionic
azo
dye.
photocatalyst
observed
induce
complete
(100%)
G
dye
120
min
when
tested
optimized
reaction
medium
pH
3
catalyst
concentration
2
g/L.
demonstrated
be
exceptionally
effective
G.
Following
catalyst,
it
can
simply
washed
same
recovered
solution
reused
multiple
times
process
without
need
any
chemical
additives.
Minerals,
Journal Year:
2024,
Volume and Issue:
14(6), P. 629 - 629
Published: June 20, 2024
The
need
for
innovative
catalysts
and
catalytic
support
materials
is
continually
growing
due
to
demanding
requirements,
stricter
environmental
demands,
the
ongoing
development
of
new
chemical
processes.
Since
about
80%
all
industrial
processes
involve
catalysts,
there
a
continuing
develop
catalyst
supports
with
suitable
qualities
meet
demands.
Not
only
must
have
tailored
properties,
but
they
also
be
large-scale
production
through
environmentally
friendly
cost-effective
Clay
minerals,
their
rich
history
in
medicine
ceramics,
are
now
emerging
as
potential
catalysts.
Their
transformative
exemplified
applications
such
hydrogenating
greenhouse
gas
CO2
into
carbohydrate
fuel,
crucial
step
meeting
rising
electrical
demand.
Moreover,
advanced
derived
from
clay
minerals
proving
mettle
diverse
photocatalytic
reactions,
organic
dye
removal
pharmaceutical
pollutant
elimination
energy
conversion
water
splitting.
natural
state
show
low
activity,
so
increase
reactivity,
activated.
Depending
on
requirements
particular
application,
selecting
an
appropriate
activation
method
modifying
mineral
critical
consideration.
Traditional
processing
methods
acid
or
alkaline
treatment
used.
Still,
these
drawbacks
high
costs,
long
times,
formation
hazardous
by-products.
Other
processes,
ultrasonication
mechanical
routes,
been
proposed
reduce
main
advantage
microwave-assisted
procedures
that
save
time,
whereas
mechanochemical
simple
efficient.
This
short
review
focuses
using
various
create
sophisticated
materials.
Recent
advances
reactions
specifically
covered,
including
biogeochemical
carbon
nanotube
synthesis,
hydrogenation
dry
reforming
methane.
Environmental Research,
Journal Year:
2025,
Volume and Issue:
unknown, P. 121670 - 121670
Published: May 1, 2025
Bismuth
stannate
(Bi2Sn2O7)
has
emerged
as
a
promising
compound
for
heterostructure
applications
due
to
its
outstanding
photocatalytic,
structural,
and
optical
properties.
As
pyrochlore-type
semiconducting
material,
Bi2Sn2O7
demonstrates
suitable
bandgap,
strong
visible-light
absorption,
high
chemical
stability,
making
it
attractive
environmental
remediation.
Heterostructures
based
on
have
gained
significant
attention
because
of
their
enhanced
charge
carrier
separation
efficiency,
improved
charged
mobility,
synergistic
effects
that
boost
photocatalytic
performance.
Different
strategies
been
utilized
construct
Bi2Sn2O7-based
heterostructures,
including
doping,
vacancies
generation,
coupling
with
other
semiconductors
form
Z-scheme
S-scheme
heterojunctions.
These
engineered
interfaces
effectively
reduce
recombination,
thereby
enhancing
efficiency
pollutant
degradation.
Furthermore,
various
synthesis
techniques
reviewed
viz.
hydrothermal,
solvothermal
solid-state
reaction
method,
in-situ,
co-precipitation,
etc
photocatalyst
in
which
the
hydrothermal
method
was
most
preferable
yield
crystallinity,
morphology,
cost-effectiveness,
eco-friendly,
energy
conserving.
This
review
highlights
properties,
synthesis,
modification
strategies,
application
heterostructures
technologies.
The
challenges
well
future
prospects
these
materials
are
also
analysed,
emphasizing
potential
next-generation
photocatalysts.
Further
research
is
required
optimize
material
enhance
transport,
develop
scalable
methods
commercial
applications.
