Using
catalytic
methods
to
remove
volatile
organic
pollutants
is
a
promising
approach,
but
finding
catalysts
with
exceptional
activity
still
difficult
task.
In
this
study,
we
have
designed
novel
zeolite-based
catalyst,
denoted
as
(Cu,
V)10@Hol
ZSM-5-49,
which
encapsulates
V-Cu
bimetal
inside
hollow
ZSM-5
zeolites.
The
resulting
catalyst
exhibits
remarkable
nanostructure,
micro-mesoporous
pore
structures
on
the
outer
wall,
and
increased
number
of
acid
sites
in
cavity.
We
identified
enhancement
reducibility
at
low
temperatures
increase
reactive
oxygen
species
vacancy
surface
key
factors
for
degradation.
(Cu,V)10@Hol
ZSM-5-49
demonstrates
excellent
performance,
showing
impressive
results
such
90%
elimination
chlorobenzene
(CB)
187℃
over
98%
removal
within
60
hours
300℃.
Our
research
has
found
that
using
confinement,
acidic
sites,
vacancies
can
effectively
degrade
chlorine-containing
temperatures.
This
approach
could
lead
development
highly
effective
environmental
remediation.
Sustainability,
Journal Year:
2024,
Volume and Issue:
16(19), P. 8331 - 8331
Published: Sept. 25, 2024
Polyvinyl
chloride
(PVC)
resins
are
widely
used
in
modern
society
due
to
their
acid
and
alkali
resistance,
low
cost,
strong
insulation
properties.
However,
the
high
chlorine
(Cl)
content
PVC
poses
significant
challenges
for
its
recycling.
This
study
reviews
treatment
processes,
model
construction,
economic
environmental
assessments
construct
a
methodological
framework
sustainable
development
of
emerging
dechlorination
technologies.
In
terms
this
summarizes
three
types
pretreatment,
simultaneous
during
chemical
recycling,
product
purification,
emphasizes
necessity
from
systematic
perspective.
Additionally,
construction
models
processes
is
investigated
laboratory
industrial
production
system
macro-scale
material,
order
evaluate
potential
inventory
data
material
metabolism
behaviors.
review
also
summarized
methodology
Techno-Economic
Analysis
(TEA)
Life
Cycle
Assessment
(LCA),
which
can
be
applied
evaluation
performance
processes.
Overall,
provides
readers
with
comprehensive
perspective
on
state-of-the-art
technologies,
meanwhile
offering
guidance
future
research
applications
recycling
waste.
Science & Technology Indonesia,
Journal Year:
2024,
Volume and Issue:
9(2), P. 457 - 469
Published: April 2, 2024
Layered
Double
Hydroxide
(LDH)-derived
materials
exhibited
different
characteristics
from
LDH
precursors.
The
conversion
of
ZnAl
into
its
derivative
material
has
been
carried
out
to
find
the
best
catalyst
for
TC
degradation.
(LDH)-based
catalysts
in
this
study
have
effectively
synthesized
using
coprecipitation,
calcination,
and
restacking
procedures.
Oxide
(LDO)
is
derived
calcination
at
500°C.
was
also
modified
by
adding
Garcinia
mangostana
pericarp
extract
(GME).
XRD,
FT-IR,
UV-DRS,
SEM-EDX
were
used
investigate
catalyst.
typical
FT-IR
spectra,
whereas
LDO
showed
metal
oxide-like
ZnAl-GME
composite
displayed
combination
spectra
precursor
material.
XRD
diffraction
pattern
attributes
a
layered
material,
other
three
did
not.
Calcination
destroyed
structure
LDH,
addition
GME
generated
single-layered
composite.
decrease
both
particle
size
bandgap
energy.
At
an
ideal
pH
5,
batch
system
photodegradation
5
mg/L
Tetracycline
(TC),
employing
solar
light
irradiation.
holds
most
significant
catalytic
activity
structural
stability
through
fifth
regeneration
cycle,
degraded
up
100%
90
minutes.
