Journal of Wood Chemistry and Technology,
Год журнала:
2024,
Номер
unknown, С. 1 - 12
Опубликована: Дек. 27, 2024
Lignin-based
carbon/cadmium
sulfide
(LCS)
composite
photocatalytic
materials
with
excellent
porous
structures
were
prepared
by
simple
carbonization
and
in
situ
precipitation
using
lignin
from
a
wide
range
of
sources
as
carbon
source.
The
CdS
nanoparticles
uniformly
fixed
LC,
which
improved
the
sunlight
absorption
ability
good
stability
photocatalyst.
effect
different
factors
on
pore
structure
was
investigated.
results
showed
that
obtained
LCS
composites
had
maximum
specific
surface
area
(334.841
m2·g−1)
porosity
(0.4406
mL·g−1)
when
mass
ratio
(the
lignin:
templating
agent)
2:1
carried
out
at
600
°C
for
1.5
h
(LCS-600-1.5-2).
Compared
pure
CdS,
photodegradation
performance
under
simulated
(500
W
Xe
lamp)
irradiation
significantly
improved.
degradation
rate
methylene
blue
(MB)
methyl
orange/methylene
(MO/MB)
reached
91.7%
90.8%
2
h,
respectively.
material
test
has
acid–base
stability,
MB
remained
above
80%
after
5
cycles.
biomass,
dispersion
uniformity
cadmium
sulfide,
reduced
recombination
photogenic
electron
hole,
enhanced
visible
light,
greatly
expanded
application
material.
Green Chemistry,
Год журнала:
2024,
Номер
26(6), С. 3190 - 3201
Опубликована: Янв. 1, 2024
Five
different
M
w
fractionated
lignins
were
used
to
prepare
five
types
of
L-CQDs
for
general
cell
imaging
and
clarify
the
effects
lignin
on
formation
properties
L-CQDs.
Green Chemistry,
Год журнала:
2024,
Номер
26(10), С. 6005 - 6018
Опубликована: Янв. 1, 2024
Achieving
a
waste-treats-pollutant
vision,
rationally
designed
lignin
valorization
that
encompasses
shining
story
of
multicolor
carbon
dots
is
proposed
to
promote
selective
metal-ion
sensing
and
photocatalytic
antibiotic
removal.
Carbon Capture Science & Technology,
Год журнала:
2024,
Номер
12, С. 100218 - 100218
Опубликована: Март 29, 2024
Hydrothermal
reactions
can
convert
lignin
into
carbon
dots,
and
the
process
often
uses
acids
as
additives,
but
mechanism
of
action
is
not
clear.
In
this
study,
lignin-based
dots
were
successfully
prepared
by
HNO3-assisted
one-pot
hydrothermal
method.
The
influence
acidic
environment
on
structure
optical
properties
was
also
investigated
changing
addition
amount
HNO3.
It
found
that
particle
size
distribution
collected
1-5
nm,
they
could
emit
bright
blue
fluorescence
under
violet
light
irradiation
with
highest
quantum
yield
10.17%.
HNO3
acts
branched
chains
ether
bonds
alkali
lignin,
prompting
depolymerization
re-cross-linking
condensation
to
form
dots.
With
increase
addition,
core
gradually
transformed
from
amorphous
complete
graphene-like
structure,
emission
wavelength
shifted
517
nm
499
increased
2.61%
10.17%
effect
integrated
N
doping,
which
great
significance
for
analysis
conformational
relationship
guidance
high-efficiency
synthesis
