Energy & Environment,
Год журнала:
2024,
Номер
unknown
Опубликована: Окт. 10, 2024
The
demand
for
engineering
plastics,
such
as
polyoxymethylene
(POM),
used
in
the
electronics
and
automotive
industries
is
increasing
rapidly.
It
becoming
increasingly
important
to
reduce
adverse
effects
of
waste
plastics
on
environment
ecosystem
achieve
goals
circular
economy.
Pyrolysis,
gasification,
hydrothermal
conversion,
solvolysis,
electrochemical
depolymerization
have
been
widely
studied
chemical
methods
manage
plastic
waste.
Chemical
recycling
a
representative
effective
approach
recover
monomers
or
syngas
from
This
paper
reviews
properties
POM
waste,
various
reaction
mechanisms
options
with
major
studies.
In
addition,
economic
feasibility
discussed.
Finally,
opportunities
future
challenges
regarding
are
suggested.
ACS Applied Materials & Interfaces,
Год журнала:
2025,
Номер
unknown
Опубликована: Май 3, 2025
Chemical
upcycling
of
plastic
wastes
into
valuable
chemical
feedstocks
and
simultaneous
mitigation
environmental
deterioration
are
fascinating
but
remain
extremely
challenging.
Herein,
we
report
microwave-assisted
valorization
carbon
nanotubes
(CNTs)
hydrogen
(H2)
over
heterojunction-structured
mixed
metal
oxides.
Specifically,
the
CoNiFe-based
layered
triple
oxides
(LTO)
arrayed
on
Ni-foam
(CoNiFe-LTO@foam)
were
constructed.
The
special
heterojunction
LTO
endows
high
dielectric
loss,
facilitating
efficient
conversion
absorbed
microwave
energy
thermal
energy.
Most
importantly,
synergistic
effect
multiple
transition
sites
boosts
cleavage
chains
dehydrogenation,
thereby
accelerating
reaction
kinetics.
As
a
result,
CoNiFe-LTO@foam
achieves
an
H2
selectivity
∼95
vol
%
with
yield
∼69
mmol·gplastic-1
for
polyethylene
in
25
cycles
measurement.
Simultaneously,
CNTs
attain
∼35%,
which
can
be
used
aqueous
chloride-ion
batteries.
Additionally,
enables
facile
recovery
prevents
loss
catalytic
sites,
various
real-world
wastes.
Our
work
thus
highlights
innovations
advanced
system
forming
closed
loop
C/H
achieving
ultimate
goal
carbon-neutral
society.
Analytical Chemistry,
Год журнала:
2024,
Номер
96(16), С. 6180 - 6185
Опубликована: Апрель 9, 2024
Chemical
recycling
is
a
promising
approach
to
reduce
plastic
pollution.
Timely
and
accurate
size
analysis
of
produced
nanoplastics
necessary
monitor
the
process
assess
quality
chemical
recycling.
In
this
work,
sandwich-type
microelectrode
sensor
was
developed
for
assessment
nanoplastics.
β-Mercaptoethylamine
modified
on
enhance
its
surface
positive
charge
density.
Polystyrene
(PS)
were
captured
through
electrostatic
interactions.
Ferrocene
used
as
an
electrochemical
beacon
attached
PS
via
hydrophobic
The
results
show
nonlinear
dependence
sensor's
current
response
particle
size.
resolving
ability
mainly
attributed
small
electrode
resulting
attenuation
electric
field
strength.
For
mixed
samples
with
different
sizes,
method
can
provide
average
sizes.
Through
effective
pretreatment
process,
be
applied
properties,
ensuring
application
in
evaluating
methods.
Journal of Science Policy & Governance,
Год журнала:
2024,
Номер
24(01)
Опубликована: Апрель 28, 2024
Plastic
pollution
poses
a
significant
challenge
to
the
environment,
biodiversity,
and
human
health.
Each
year,
world
produces
300
million
tons
of
plastic
waste,
equivalent
weight
planet's
entire
population.
Only
9%
products
worldwide
are
recycled
due
pervasive
throw-away
culture
inefficient
policies
for
managing
single-use
plastic.
Over
time,
plastics
fragment
into
smaller
pieces,
distributed
across
ecosystems
by
wind
rainfall.
Marine
terrestrial
wildlife
accidentally
ingest
these
plastics,
leading
build-up
toxins
in
tissues.
These
transferred
other
species,
including
humans,
through
food
chain.
This
document
proposes
two
policy
options
address
this
issue:
(a)
replacing
conventional
with
more
environmentally
friendly
alternatives
or
(b)
transitioning
circular
economy
focused
on
reducing,
reusing,
repairing,
recycling.
We
urge
United
Nations
Environment
Programme
(UNEP)
pursue
latter
development
implementation
comprehensive
global
agenda
appropriate
effective
management
plastics.
would
include
financial,
environmental,
social
estimators
quantify,
manage,
reduce
waste.
A
UNEP-led
has
potential
standardize
regulate
production,
consumption,
waste
ultimately
negative
impact
Energy & Environment,
Год журнала:
2024,
Номер
unknown
Опубликована: Окт. 10, 2024
The
demand
for
engineering
plastics,
such
as
polyoxymethylene
(POM),
used
in
the
electronics
and
automotive
industries
is
increasing
rapidly.
It
becoming
increasingly
important
to
reduce
adverse
effects
of
waste
plastics
on
environment
ecosystem
achieve
goals
circular
economy.
Pyrolysis,
gasification,
hydrothermal
conversion,
solvolysis,
electrochemical
depolymerization
have
been
widely
studied
chemical
methods
manage
plastic
waste.
Chemical
recycling
a
representative
effective
approach
recover
monomers
or
syngas
from
This
paper
reviews
properties
POM
waste,
various
reaction
mechanisms
options
with
major
studies.
In
addition,
economic
feasibility
discussed.
Finally,
opportunities
future
challenges
regarding
are
suggested.
