Green Chemistry,
Journal Year:
2021,
Volume and Issue:
23(6), P. 2329 - 2335
Published: Jan. 1, 2021
Well-defined
lignin
fillers
were
synthesized
by
using
a
universal
approach,
that
the
combination
of
chemical
modification
with
fractionation.
This
study
paves
way
towards
high-value
utilization
on
broader
scale.
Advanced Energy Materials,
Journal Year:
2020,
Volume and Issue:
11(43)
Published: Dec. 21, 2020
Abstract
The
commercial
breakthrough
of
Li‐ion
batteries
(LIBs)
in
the
1990s
irrevocably
shaped
today's
energy
storage
landscape,
but
disposed
represent
a
growing
hazard
to
environment.
One
may
initially
assume
that
recycling
processes
are
commendable
technologies
ensure
counterbalance
LIBs
manufacturing.
However,
question
remains
whether
current
state‐of‐the‐art
can
be
considered
as
green.
This
problem
is
due
application
toxic
chemicals
or
situ
generation
harmful
substances
during
process.
Besides
potential
toxicity,
solutions
accompanied
with
intense
consumption,
causing
carbon
dioxide
emissions,
disagreement
circular
economy
principles.
review
provides
critical
assessment
both
published
research
articles
and
patents
derive
broad
picture
on
sustainability
technologies.
Although
efficiency
industrially
applied
exhibit
high
overall
efficiency,
their
general
process
design
generally
based
waste
reduction
downcycling.
Contrariwise,
sustainable
should
rely
ensuring
upcycling
all
materials
toward
zero
minimized
utilization.
Current
expected
development
presented,
ranging
from
dismantling
over
components
separation
bioderived
materials.
Journal of Materials Research and Technology,
Journal Year:
2021,
Volume and Issue:
15, P. 2287 - 2316
Published: Sept. 13, 2021
Recently,
the
demand
for
biodegradable,
eco-friendly
and
sustainable
alternatives
has
been
on
increase.
Although
numerous
biopolymers
such
as
cellulose,
starch,
plants
proteins
polylactic
acid,
etc.,
have
used
to
produce
bioplastics,
outcomes
need
more
improvement
suit
different
applications.
This
paper
comprehensively
maps
expanding
academic
territory
using
lignin
a
reinforcement
material
improve
biopolymers-based
materials'
properties.
A
brief
discussion
chronological
development
of
lignin,
types,
isolation,
physical
chemical
modifications
was
presented.
Also,
role
in
biopolymeric
blends
acids,
proteins,
polyhydroxy
butyrate
polyamides
reviewed.
Finally,
review
extensively
critically
discusses
current
findings
lignin/biopolymers
various
industrial
applications,
including
wood
adhesives,
adsorbent
toxic
heavy
metal
removal,
production
carbon
materials,
dispersant
medium,
flame
retardant
storage
highlighted
possible
applications
biofuel,
hydrocarbon,
lubricant,
renewable
chemical,
smart
materials.
Green Chemistry,
Journal Year:
2021,
Volume and Issue:
24(2), P. 823 - 836
Published: Dec. 4, 2021
Lignin
was
demonstrated
to
have
excellent
photothermal
performance
for
smart
applications
in
photo-controlled
shape
memory,
self-healing,
mechanical/electrical
conversion,
antibacterial
materials,
etc
.
ChemSusChem,
Journal Year:
2021,
Volume and Issue:
14(21), P. 4615 - 4635
Published: Aug. 16, 2021
Abstract
Lignin
is
an
abundant
natural
feedstock
that
offers
great
potential
as
a
renewable
substitute
for
fossil‐based
resources.
Its
polyaromatic
structure
and
unique
properties
have
attracted
significant
research
efforts.
The
advantages
of
enzymatic
over
chemical
or
thermal
approach
to
construct
deconstruct
lignins
are
it
operates
in
mild
conditions,
requires
less
energy,
usually
uses
non‐toxic
chemicals.
Laccase
widely
investigated
oxidative
enzyme
can
catalyze
the
polymerization
depolymerization
lignin.
dual
nature
causes
challenge
controlling
overall
direction
lignin‐laccase
catalysis.
In
this
Review,
factors
affect
laccase‐catalyzed
lignin
were
summarized,
evaluated,
compared
identify
key
features
favor
polymerization.
addition,
critical
assessment
conditions
enable
production
novel
hybrids
via
grafting
was
presented.
To
assess
industrial
relevance
laccase‐assisted
valorization,
patented
applications
surveyed
challenges
opportunities
analyzed.
Finally,
our
perspective
realizing
full
laccase
building
lignin‐based
materials
advanced
deduced
from
analysis
limitations
governing
grafting.
ACS Nano,
Journal Year:
2021,
Volume and Issue:
15(3), P. 4811 - 4823
Published: Feb. 17, 2021
Fabrication
of
spherical
lignin
nanoparticles
(LNPs)
is
opening
more
application
opportunities
for
lignin.
However,
dissolution
LNPs
at
a
strongly
alkaline
pH
or
in
common
organic
solvent
systems
has
prevented
their
surface
functionalization
dispersion
state
as
well
processing
and
applications
that
require
maintaining
the
particle
morphology
under
harsh
conditions.
Here,
we
report
simple
method
to
stabilize
through
intraparticle
cross-linking.
Bisphenol
A
diglycidyl
ether
(BADGE),
cross-linker
that,
like
lignin,
contains
substituted
benzene
rings,
coprecipitated
with
softwood
Kraft
form
hybrid
(hy-LNPs).
The
hy-LNPs
BADGE
content
≤20
wt
%
could
be
cross-linked
without
altering
colloidal
stability.
Atomic
force
microscopy
quartz
crystal
microbalance
dissipation
monitoring
were
used
show
internally
particles
resistant
conditions
acetone-water
binary
dissolved
unmodified
entirely.
We
further
demonstrated
covalent
12
an
epoxy
ring-opening
reaction
obtain
pH-switchable
charge.
Moreover,
≥30%
allowed
both
inter-
cross-linking
>150
°C,
which
enabled
waterborne
wood
adhesives
competitive
dry/wet
adhesive
strength
(5.4/3.5
MPa).
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.