Nanoscale,
Год журнала:
2023,
Номер
16(2), С. 691 - 700
Опубликована: Дек. 6, 2023
2D
MOF
nanosheets
prepared
using
a
high-gravity
reactive
precipitation
method
exhibit
high
catalytic
activities
toward
Knoevenagel
condensation
and
the
glycolysis
of
poly(ethylene
terephthalate).
RSC Sustainability,
Год журнала:
2023,
Номер
1(9), С. 2135 - 2147
Опубликована: Янв. 1, 2023
This
review
has
focused
on
the
concept
of
upcycling,
which
involves
utilizing
PET
waste
as
a
raw
material
for
production
value-added
products
such
monomers,
fine
chemicals,
hydrogen,
or
carbon
materials.
Polymer Chemistry,
Год журнала:
2024,
Номер
15(7), С. 585 - 608
Опубликована: Янв. 1, 2024
This
review
discusses
the
physical-,
chemical
recycling
and
biodegradation
processes
mechanisms
of
PET,
proposing
effecting
compromise
between
its
overall
properties
conferred
intrinsic
biodegradability
by
modified
monomer
polymerisation.
Green Chemistry,
Год журнала:
2023,
Номер
25(18), С. 7243 - 7252
Опубликована: Янв. 1, 2023
The
Ti
0.5
Si
O
2
solid
acid
catalyst
is
extremely
active
and
stable
for
methanol
alcoholysis
of
polyethylene
terephthalate
to
dimethyl
under
mild
conditions.
Green Chemistry,
Год журнала:
2023,
Номер
25(20), С. 8160 - 8171
Опубликована: Янв. 1, 2023
Polyethylene
terephthalate
(PET)
can
be
recovered
as
high-purity
bis(2-hydroxyethyl
terephthalate)
(BHET)
monomer
by
glycolysis
in
the
presence
of
Fe
3
O
4
nanoparticles
(NPs).
After
removing
metallic
impurities,
BHET
used
to
producing
r
-PET.
ACS Sustainable Chemistry & Engineering,
Год журнала:
2023,
Номер
11(43), С. 15544 - 15555
Опубликована: Окт. 18, 2023
The
development
of
efficient
catalysts
for
the
chemical
recycling
poly(ethylene
terephthalate)
(PET)
is
essential
to
tackling
global
issue
plastic
waste.
There
has
been
intense
interest
in
heterogeneous
as
a
sustainable
catalyst
system
PET
depolymerization,
having
advantage
easy
separation
and
reuse
after
reaction.
In
this
work,
we
explore
design
by
comparing
metal-ion
(Fe3+)
metal-oxide
nanoparticle
(Fe2O3
NP)
immobilized
on
mesoporous
silica
(SiO2)
functionalized
with
different
N-containing
amine
ligands.
Quantitative
solid-state
nuclear
magnetic
resonance
(NMR)
spectroscopy
confirms
successful
grafting
elucidates
bonding
mode
organic
ligands
SiO2
surface.
surface
act
organocatalysts,
enhancing
catalytic
activity
active
metal
species.
Fe2O3
NP
presence
outperform
bare
NPs,
Fe3+-ion-immobilized
homogeneous
FeCl3
salts,
equivalent
Fe
loading.
X-ray
photoelectron
analysis
indicates
charge
transfer
between
NPs
electron-donating
ability
N
groups
hydrogen
may
also
play
role
higher
performance
amine-ligand-assisted
catalysts.
Density
functional
theory
(DFT)
calculations
reveal
that
reactivity
ion-immobilized
strongly
correlated
ligand–metal
binding
energy
products
glycolysis
reaction
catalyzed
are
stabilized,
showing
significant
exergonic
character
compared
single
Fe3+
ions.
Catalysis Science & Technology,
Год журнала:
2023,
Номер
13(22), С. 6561 - 6569
Опубликована: Янв. 1, 2023
The
glycolysis
of
polyethylene
terephthalate
(PET)
is
considered
as
the
most
promising
PET
recycling
strategy
due
to
its
mild
reaction
conditions
and
circularity.