Journal of the American Chemical Society,
Год журнала:
2025,
Номер
unknown
Опубликована: Март 13, 2025
The
partial
hydrogenation
of
waste
polyethylene
terephthalate
(PET)
offers
a
great
opportunity
to
produce
valuable
chemicals,
yet
achieving
precise
catalytic
control
remains
challenging.
Herein,
for
the
first
time,
we
realized
one-pot
selective
PET
p-toluic
acid
(p-TA)
with
record-high
yield
53.4%,
alongside
36.4%
p-xylene
(PX),
using
specially
designed
PtW/MCM-48
catalyst.
Mechanistic
investigations
revealed
that
exceptional
performance
arises
from
synergistic
interaction
between
Pt
nanoparticles
and
WOx
species.
Low-valent
enhances
dispersion,
while
stabilizes
as
low-polymerized
polytungstates.
moderate
acidity
PtW1.5/MCM-48
ensures
controlled
desorption
p-TA,
preventing
overhydrogenation
PX.
catalyst
demonstrated
robust
real-world
waste.
Life
cycle
assessment
technical
economic
evaluation
further
highlight
its
practical
feasibility.
This
study
establishes
sustainable
pathway
chemical
upcycling
provides
framework
designing
advanced
catalysts
reactions,
addressing
critical
challenges
in
circular
chemistry
plastic
management.
Chemical Communications,
Год журнала:
2025,
Номер
unknown
Опубликована: Янв. 1, 2025
A
novel
terephthalate-based
ionic
liquid
catalyst
is
promotes
highly
efficient
neutral
hydrolysis
of
PET
without
attendant
inactivation
or
product
contamination.
Chemical Communications,
Год журнала:
2024,
Номер
60(21), С. 2828 - 2838
Опубликована: Янв. 1, 2024
This
Feature
Article
systematically
elaborates
on
various
emerging
technologies
for
the
upcycling
of
polyesters,
while
also
anticipating
future
development
directions.
Waste Management,
Год журнала:
2024,
Номер
186, С. 293 - 306
Опубликована: Июль 1, 2024
The
compositions
of
Dutch
lightweight
packaging
waste
(LWP)
and
sorted
products
named
"PET
(Polyethylene
terephthalate)
trays"
have
been
determined
on
object
level.
Additionally,
the
PET
trays
from
both
types
were
in
16
categories
representing
their
use
material
build-up.
composition
at
least
10
representative
each
category
was
with
chemical
thermal
analysis,
based
which
average
per
established.
Based
this
data
tray
approximated.
recyclability
various
assessed
most
ubiquitous
LWP
only
found
to
be
suitable
produce
opaque
recycled
mechanical
recycling
processes.
Whereas
some
more
uncommon
can
used
transparent
Depolymerisation
is
deemed
a
appropriate
process
that
will
allow
production
food-grade
PET.
Nature Communications,
Год журнала:
2024,
Номер
15(1)
Опубликована: Дек. 30, 2024
Catalytic
upcycling
of
polyethylene
terephthalate
(PET)
into
high-value
oxygenated
products
is
a
fascinating
process,
yet
it
remains
challenging.
Here,
we
present
one-step
tandem
strategy
to
realize
the
thermal
catalytic
oxidation
PET
terephthalic
acid
(TPA)
and
glycolic
(GA)
instead
ethylene
glycol
(EG).
By
using
Au/NiO
with
rich
oxygen
vacancies
as
catalyst,
successfully
accelerate
hydrolysis
PET,
accompanied
by
obtaining
99%
TPA
yield
87.6%
GA
yield.
The
results
reveal
that
in
NiO
(NiO-O
Advanced Materials,
Год журнала:
2025,
Номер
unknown
Опубликована: Янв. 2, 2025
Abstract
Plastic
products
bring
convenience
to
various
aspects
of
the
daily
lives
due
their
lightweight,
durability
and
versatility,
but
massive
accumulation
post‐consumer
plastic
waste
is
posing
significant
environmental
challenges.
Catalytic
methods
can
effectively
convert
into
value‐added
feedstocks,
with
catalysts
playing
an
important
role
in
regulating
yield
selectivity
products.
This
review
explores
latest
advancements
advanced
applied
thermal
catalysis,
microwave‐assisted
photocatalysis,
electrocatalysis,
enzymatic
catalysis
reaction
systems
for
chemical
recycling
valuable
feedstocks.
Specifically,
pathways
mechanisms
involved
plastics
process
are
analyzed
presented,
strengths
weaknesses
employed
across
different
described.
In
addition,
structure‐function
relationship
these
discussed.
Herein,
it
provided
insights
design
novel
outline
challenges
future
opportunities
terms
developing
tackle
“white
pollution”
crisis.
Advanced Functional Materials,
Год журнала:
2025,
Номер
unknown
Опубликована: Янв. 31, 2025
Abstract
Commercial
personal
protective
equipment
(PPE)
often
has
limited
antibacterial
activity
that
compromises
its
effectiveness
in
preventing
infections.
Traditional
mechano‐bactericidal
methods
deliver
suboptimal
performance,
while
photo‐bactericidal
struggle
with
activation
requirements
and
durability.
In
this
study,
a
dual‐action
PPE,
combining
mechano‐
strategies,
have
been
designed
to
overcome
these
challenges.
Mg–Al
layered
double
hydroxide
nanoblades
(LDH‐NBs)
are
synthesized
on
polydimethylsiloxane
(PDMS)‐coated
polypropylene
(PP)
fabric.
The
PDMS
coating
plays
crucial
role
enabling
the
formation
of
densely
packed
LDH‐NBs,
thereby
implementing
action.
Additionally,
hydrophobic
residues
diffuse
surface
during
heat
treatment,
converting
LDH‐NB
hydrophobic.
Rose
Bengal
(RB)‐adsorbed
LDH‐NBs
(RB@LDH‐NBs)
become
superhydrophobic
after
exhibiting
antifouling
effects
against
various
contaminants
bacteria.
RB@LDH‐NBs
mechanically
inactivate
99.5%
Escherichia
coli
95%
Staphylococcus
aureus
under
typical
respiratory
flow
rates
completely
eradicate
E.
within
2
h
light
exposure.
Combining
photobactericidal
effects,
rapidly
both
S.
15
min
These
outstanding
bactericidal
performances
highlight
potential
advanced
PPE
provide
robust
protection
infectious
diseases.
