Advanced Materials,
Journal Year:
2024,
Volume and Issue:
36(33)
Published: June 13, 2024
Abstract
Plastics,
renowned
for
their
outstanding
properties
and
extensive
applications,
assume
an
indispensable
irreplaceable
role
in
modern
society.
However,
the
ubiquitous
consumption
of
plastic
items
has
led
to
a
growing
accumulation
waste.
Unreasonable
practices
production,
utilization,
recycling
plastics
have
substantial
energy
resource
depletion
environmental
pollution.
Herein,
state‐of‐the‐art
advancements
lifecycle
management
are
timely
reviewed.
Unlike
typical
reviews
focused
on
recycling,
this
work
presents
in‐depth
analysis
entire
plastics,
covering
whole
process
from
synthesis,
processing,
ultimate
disposal.
The
primary
emphasis
lies
selecting
judicious
strategies
methodologies
at
each
stage
mitigate
adverse
impact
waste
plastics.
Specifically,
article
delineates
rationale,
methods,
realized
various
stages
through
both
physical
chemical
pathways.
focal
point
is
attainment
optimal
rates
thereby
alleviating
ecological
burden
By
scrutinizing
aims
furnish
comprehensive
solutions
reducing
pollution
fostering
sustainability
across
all
facets
Green Chemistry,
Journal Year:
2022,
Volume and Issue:
24(23), P. 8899 - 9002
Published: Jan. 1, 2022
This
paper
reviewed
the
entire
life
cycle
of
plastics
and
options
for
management
plastic
waste
to
address
barriers
industrial
chemical
recycling
further
provide
perceptions
on
possible
opportunities
with
such
materials.
ACS Catalysis,
Journal Year:
2022,
Volume and Issue:
12(8), P. 4659 - 4679
Published: April 5, 2022
Plastics
are
indispensable,
but
their
pollution
is
triggering
a
global
environmental
crisis.
Although
many
end-of-life
catalytic
options
have
involved
converting
plastics
into
valuable
products,
deep
understanding
of
the
relationship
between
polymer
structure
and
recycling
performance
significant
urgently
needed.
Here,
we
start
with
primer
polymeric
chain
structures
on
chemical
discuss
structure–performance
polymer,
catalyst,
reaction.
Specifically,
development
challenges
re/upcycling
waste
PET
polyolefins
discussed
in-depth.
In
addition,
also
present
some
prospects
for
innovations
in
catalyst
synthesis
reaction
engineering
basis
relationship.
The
discussion
ends
brief
perspective
future
plastic
re/upcycling.
Overall,
intelligent
catalysis
design
necessary
incentivizing
relieving
burden
plastics.
Journal of the American Chemical Society,
Journal Year:
2023,
Volume and Issue:
145(18), P. 9898 - 9915
Published: May 1, 2023
Controlled
polymerization
methods
are
well-established
synthetic
protocols
for
the
design
and
preparation
of
polymeric
materials
with
a
high
degree
precision
over
molar
mass
architecture.
Exciting
recent
work
has
shown
that
end-group
fidelity
and/or
functionality
inherent
in
these
techniques
can
enable
new
routes
to
depolymerization
under
relatively
mild
conditions.
Converting
polymers
back
pure
monomers
by
is
potential
solution
environmental
ecological
concerns
associated
ultimate
fate
polymers.
This
perspective
focuses
on
emerging
field
from
synthesized
controlled
polymerizations
including
radical,
ionic,
metathesis
polymerizations.
We
provide
critical
review
current
literature
categorized
according
technique
explore
numerous
concepts
ideas
which
could
be
implemented
further
enhance
lower
temperature
systems,
catalytic
depolymerization,
increasing
polymer
scope,
depolymerization.
SusMat,
Journal Year:
2022,
Volume and Issue:
2(2), P. 161 - 185
Published: April 1, 2022
Abstract
The
mass
production
of
disposable
polyolefin
products
has
led
to
serious
plastic
pollution
and
an
imbalance
between
manufacturing
recycling.
Given
these
challenges,
the
chemical
upcycling
waste
polyolefins
attracted
extensive
attention
due
its
high
efficiency
economic
benefits.
Herein,
we
review
development
in
heterogeneous
catalysis.
status
quo
recycling
is
first
discussed.
We
then
introduce
advanced
strategies
for
view
different
value‐added
discuss
their
challenges
prospects.
Our
in‐depth
analysis
centers
on
catalytic
mechanism
design
principle
catalysts.
Finally,
outlook
promising
directions
facilitate
degradation
process
via
polymer
catalyst
optimized
engineering.
Innovative
are
expected
promote
polyolefins,
bringing
great
promise
sustainable
society.
Chemical Society Reviews,
Journal Year:
2023,
Volume and Issue:
52(14), P. 4755 - 4832
Published: Jan. 1, 2023
Diversification
of
polymer
waste
recycling
is
one
the
solutions
to
improve
current
environmental
scenario.
Upcycling
a
promising
strategy
for
converting
into
molecular
intermediates
and
high-value
products.
Although
catalytic
transformations
small
molecules
have
been
actively
discussed,
methods
characteristics
upcycling
new
materials
not
yet
addressed.
Recently,
functionalisation
wastes
(polyethylene
terephthalate
bottles,
polypropylene
surgical
masks,
rubber
tires,
etc.)
their
conversion
with
enhanced
functionality
proposed
as
an
appealing
alternative
dealing
recycling/treatment.
In
this
review,
term
'functional
upcycling'
introduced
designate
any
method
post-polymerisation
modification
or
surface
without
considerable
chain
destruction
produce
upcycled
material
added
value.
This
review
explores
functional
detailed
consideration
most
common
polymers,
i.e.,
polystyrene,
poly(methyl
methacrylate),
polyethylene,
polypropylene,
polyurethane,
polyethylene
terephthalate,
polyvinyl
chloride,
polycarbonate,
rubber.
We
discuss
composition
plastic
waste,
reactivity,
available
physical/chemical
agents
modification,
interconnection
between
properties
application.
To
date,
successfully
applied
adsorbents
(including
CO2),
catalysts,
electrode
energy
storage
sensing,
demonstrating
high
Importantly,
reviewed
reports
indicated
that
specific
performance
generally
comparable
higher
than
similar
prepared
from
virgin
feedstock.
All
these
advantages
promote
diversification
approach
against
postprocessing
employed
waste.
Finally,
identify
limitations
suggest
future
scope
research
each
polymer,
we
comparatively
analysed
aspects
those
chemical
mechanical
recycling,
considering
resource
costs,
toxicity
used
chemicals,
footprint,
value
product.
Journal of the American Chemical Society,
Journal Year:
2023,
Volume and Issue:
145(3), P. 1847 - 1854
Published: Jan. 12, 2023
To
solve
the
serious
environmental
problem
and
huge
resource
waste
of
plastic
pollution,
we
report
a
tandem
catalytic
conversion
low-density
polyethylene
(LDPE)
into
naphtha,
key
feedstock
for
renewable
production.
Using
β
zeolite
silicalite-1-encapsulated
Pt
nanoparticles
(Pt@S-1),
naphtha
yield
89.5%
is
obtained
with
96.8%
selectivity
C5-C9
hydrocarbons
at
250
°C.
The
acid
sites
crack
long-chain
LDPE
olefin
intermediates,
which
diffuse
within
channels
Pt@S-1
to
encounter
nanoparticles.
hydrogenation
over
confined
metal
matches
cracking
steps
by
selectively
shipping
olefins
right
size,
rapid
diffusion
boosts
formation
narrow-distributed
alkanes.
A
conceptual
upgrading
indicates
it
suitable
closing
loop,
significant
energy
saving
15%
30%
reduced
greenhouse
gas
emissions.
