ACS Sustainable Chemistry & Engineering,
Journal Year:
2021,
Volume and Issue:
9(36), P. 12017 - 12042
Published: Aug. 30, 2021
Synthetic
plastics
have
been
reshaping
the
planet
since
early
20th
century.
They
brought
plenty
of
conveniences
to
our
lives;
meanwhile,
plastic
wastes
discarded
into
environment
are
resistant
biodegradation,
accumulating
in
soil,
water,
and
even
organisms.
Biodegradable
polyester-based
(BPPs),
such
as
polylactic
acid
(PLA),
poly(butylene
adipate-co-terephthalate)
(PBAT),
succinate)
(PBS),
polycaprolactone
(PCL),
poly(β-hydroxybutyric
acid)
(PHB)
considered
be
ecofriendly
sustainable
alternatives
thrived
rapidly
past
few
decades.
However,
applications
BPPs
limited
by
their
high
prices
compared
conventional
plastics,
while
blending
with
low-cost
fillers
has
deemed
a
facile
efficient
solution
foregoing
issues.
Technical
lignin,
class
biodegradable
aromatic
polymers,
extracted/isolated
at
large
scale
coproduct
paper-making
emerging
lignocellulosic
biorefinery
industries.
The
economically
competitive
BPP
composites
reinforced
lignin
could
not
only
facilitate
valorization
but
also
improve
economic
viability
biorefinery.
At
present,
key
obstacle
lies
incompatibility
between
resulting
from
self-aggregation
thermal
condensation
due
its
polyhydroxy
structures.
Herein,
we
overviewed
series
effective
approaches
promote
interaction
adding
plasticizers
blocking
hydroxyl
groups.
Furthermore,
can
act
functional
endowing
lignin/BPP
favorable
versatilities
expanding
fields
flame
retardant
packaging,
food
medical
materials,
outside
mulching
films.
In
end,
review
developments
future
propose
current
problems
that
need
solved.
Green Energy & Environment,
Journal Year:
2022,
Volume and Issue:
8(1), P. 10 - 114
Published: July 20, 2022
In
the
search
of
alternative
resources
to
make
commodity
chemicals
and
transportation
fuels
for
a
low
carbon
future,
lignocellulosic
biomass
with
over
180-billion-ton
annual
production
rate
has
been
identified
as
promising
feedstock.
This
review
focuses
on
state-of-the-art
catalytic
transformation
into
value-added
fuels.
Following
brief
introduction
structure,
major
pretreatment
methods
biomass,
conversion
three
main
components,
i.e.,
cellulose,
hemicellulose
lignin,
various
compounds
are
comprehensively
discussed.
Either
in
separate
steps
or
one-pot,
cellulose
hydrolyzed
sugars
upgraded
oxygen-containing
such
5-HMF,
furfural,
polyols,
organic
acids,
even
nitrogen-containing
amino
acids.
On
other
hand,
lignin
is
first
depolymerized
phenols,
catechols,
guaiacols,
aldehydes
ketones,
then
further
transformed
hydrocarbon
fuels,
bioplastic
precursors
bioactive
compounds.
The
introduces
transformations
whole
via
gasification,
pyrolysis,
well
emerging
strategies.
Finally,
opportunities,
challenges
prospective
woody
valorization
highlighted.
ACS Omega,
Journal Year:
2021,
Volume and Issue:
6(30), P. 19343 - 19355
Published: July 23, 2021
Plastic
pollution
is
a
persistent
challenge
worldwide
with
the
first
reports
evidencing
its
impact
on
living
and
nonliving
components
of
environment
dating
back
more
than
half
century.
The
rising
concerns
regarding
immediate
long-term
consequences
plastic
matter
entrainment
into
foods
water
cannot
be
overemphasized
in
light
our
pursuit
sustainability
(in
terms
food,
water,
environment,
health).
Hence,
some
schools
thought
recommend
revisitation
continuous
assessment
economy,
while
call
for
outright
ban
materials,
demonstrating
that
requires,
ever,
renewed,
innovative,
effective
approaches
holistic
solution.
In
this
paper,
dozens
various
aspects
are
collated
reviewed,
both
discussed.
Current
challenges
factors
hindering
efforts
to
mitigate
identified
inform
presented
recommendations
underscoring,
policymakers,
stakeholders,
scientific
community,
exigency
finding
sustainable
solutions
not
only
encompass
existing
but
also
future
threats
by
pollution.
Journal of Materials Chemistry A,
Journal Year:
2022,
Volume and Issue:
11(3), P. 1061 - 1082
Published: Dec. 7, 2022
Lignin
is
one
of
the
most
abundant
natural
polymers
and
affordable,
has
high
carbon
content
active
functional
groups.
It
been
utilized
as
electrode
materials
in
electrical
double-layer
supercapacitors
pseudo-supercapacitors.
Small Methods,
Journal Year:
2021,
Volume and Issue:
5(11)
Published: Oct. 7, 2021
Abstract
Lignin,
one
of
the
renewable
constituents
in
natural
plant
biomasses,
holds
great
potential
as
a
sustainable
source
functional
carbon
materials.
Tremendous
research
efforts
have
been
made
on
lignin‐derived
electrodes
for
rechargeable
batteries.
However,
lignin
is
considered
most
promising
precursors
development
high‐performance,
low‐cost
porous
electrode
materials
supercapacitor
applications.
Yet,
these
not
reviewed
detail
current
literature.
This
review,
therefore,
offers
basis
utilization
pivotal
precursor
synthesis
carbons
use
Lignin
chemistry,
process
carbons,
and
future
directions
developing
better
from
are
systematically
reviewed.
Technological
hurdles
approaches
that
should
be
prioritized
presented.
Biomacromolecules,
Journal Year:
2022,
Volume and Issue:
23(4), P. 1622 - 1632
Published: Feb. 1, 2022
Antimicrobial
materials
are
an
urgent
need
for
modern
wound
care
in
the
clinic.
Although
traditional
polyurethane
foams
have
proven
to
be
clinically
valuable
treatment,
their
petroleum-originated
preparation
and
bioinert
nature
restricted
efficacy
biomedical
applications.
Here,
we
propose
a
simple
one-step
foaming
method
prepare
lignin-based
(LPUFs)
which
fully
biobased
polyether
polyols
partially
replace
petroleum-based
raw
materials.
The
trace
amount
of
phenolic
hydroxyl
groups
(about
4
mmol)
liquefied
lignin
acts
as
direct
reducing
agent
capping
silver
ions
(less
than
0.3
mmol),
situ
forming
nanoparticles
(Ag
NPs)
within
LPUF
skeleton.
This
newly
proposed
polyurethane/Ag
composite
foam
(named
Ag
NP-LPUF)
shows
improved
mechanical,
thermal,
antibacterial
properties.
It
is
worth
mentioning
that
NP-LPUF
exhibits
more
99%
rate
against
Escherichia
coli
1
h
Staphylococcus
aureus
h.
Evaluations
mice
indicate
antimicrobial
can
effectively
promote
healing
full-thickness
skin
defects.
As
proof
concept,
this
biodegradable
significant
potential
clinical
translation
dressings.
