International Journal of Molecular Sciences,
Journal Year:
2022,
Volume and Issue:
23(19), P. 11828 - 11828
Published: Oct. 5, 2022
A
general
possibility
of
a
sustainable
cycle
for
carbon
return
to
high-value-added
products
is
discussed
by
turning
wastes
into
acetylene.
Pyrolyzed
solid
municipal
wastes,
pyrolyzed
used
cationic
exchangers,
and
other
waste
sources
were
studied
in
view
the
design
producing
calcium
carbide
The
yields
from
as
high
those
industrial
fossil
raw
materials
(coke,
charcoal,
etc.).
Conversion
carbon-containing
provides
an
excellent
opportunity
make
acetylene,
which
directly
compatible
with
modern
industry.
Overall,
process
returns
back
cycles
produce
involving
only
C2-type
molecules
(calcium
acetylene).
Calcium
may
be
stored
transported,
on-demand
acetylene
generation
easy
realize.
Upon
incorporation
processing
route,
efficient
reservoir
quick
uptake.
Environmental Chemistry Letters,
Journal Year:
2023,
Volume and Issue:
21(3), P. 1419 - 1476
Published: Feb. 24, 2023
Abstract
Climate
change
issues
are
calling
for
advanced
methods
to
produce
materials
and
fuels
in
a
carbon–neutral
circular
way.
For
instance,
biomass
pyrolysis
has
been
intensely
investigated
during
the
last
years.
Here
we
review
of
algal
lignocellulosic
with
focus
on
products
mechanisms,
oil
upgrading,
combining
anaerobic
digestion,
economy,
life
cycle
assessment.
Products
include
oil,
gas,
biochar.
Upgrading
techniques
comprise
hot
vapor
filtration,
solvent
addition,
emulsification,
esterification
transesterification,
hydrotreatment,
steam
reforming,
use
supercritical
fluids.
We
examined
economic
viability
terms
profitability,
internal
rate
return,
return
investment,
carbon
removal
service,
product
pricing,
net
present
value.
also
reviewed
20
recent
studies
found
that
method
highly
influenced
yield,
ranging
from
9.07
40.59%
10.1
41.25%
biochar,
11.93
28.16%
syngas.
Feedstock
type,
pyrolytic
temperature,
heating
rate,
reaction
retention
time
were
main
factors
controlling
distribution
products.
Pyrolysis
mechanisms
bond
breaking,
cracking,
polymerization
re-polymerization,
fragmentation.
Biochar
residual
forestry
could
sequester
2.74
tons
dioxide
equivalent
per
ton
biochar
when
applied
soil
thus
potential
remove
0.2–2.75
gigatons
atmospheric
annually.
The
generation
bio-oil
process
is
estimated
be
economically
feasible.
Energy Conversion and Management X,
Journal Year:
2024,
Volume and Issue:
22, P. 100590 - 100590
Published: April 1, 2024
The
increased
demand
for
energy
has
driven
researchers
to
concentrate
on
generating
secure
sources
humanity.
One
advantage
of
inventing
a
biological
and
chemical
way
generate
green
efficient
electrical
is
that
it
eliminates
dependency
soon-to-extinct
fossil
fuels.
Biofuels
are
one
many
emerging
sectors
receiving
major
attention,
all
which
alternative
Carbon-based
nanomaterials,
due
their
larger
surface
area,
affordability,
ability
withstand
high
temperatures,
have
been
engineered
serve
as
electrocatalysts
without
the
need
metals.
These
nanomaterials
can
also
provide
stable
structure
metal-based
electrocatalysts,
enabling
conversion
biofuels
into
environmentally
friendly
sources.
Thus,
biofuel
synthesis
"greener"
using
its
catalyst.
Graphite,
carbon
nanoparticles,
nanotubes,
nanohorns,
nanorods
be
used
construct
build
wide
range
biofuels.
This
review
gives
insight
how
carbon-based
across
different
stages
production,
along
with
corresponding
issues
possibilities.
Moreover,
emphasizes
utilization
diverse
nano-biocatalysts
enhance
production
by
increasing
yield.
Given
possible
uses,
research
in
concern
exhibits
seemingly
indefinite
scope.
Scientific Reports,
Journal Year:
2024,
Volume and Issue:
14(1)
Published: Jan. 23, 2024
Abstract
This
study
presents
a
novel
approach
to
synthesizing
honeycomb
carbon
quantum
dots
(CQDs)
from
cigarette
smoke
by
hydrothermal
process.
A
comprehensive
characterization
of
these
CQDs,
conducted
through
high-resolution
transmission
electron
microscopy
(HRTEM),
showcases
their
unique
structure,
with
an
average
particle
size
6.3
nm.
Photoluminescence
(PL)
in
CQDs
is
captivating
phenomenon
where
nanoscale
structures
emit
strong
blue
luminescence
at
461
nm
upon
exposure
ultraviolet
light,
excitation
peak
occurring
380
Fourier
Transform
Infrared
(FTIR)
analysis
also
identifies
specific
functional
groups
within
the
offering
valuable
insights
into
mechanisms
governing
photoluminescence.
Analysis
spectra
indicates
presence
both
aromatic
C=C
bonds
254
and
C–O
280
420
Processes,
Journal Year:
2025,
Volume and Issue:
13(3), P. 790 - 790
Published: March 8, 2025
The
outstanding
properties
of
nanocellulose
have
led
to
a
wide
range
applications
in
packaging,
construction,
medicine,
electronics,
cosmetics,
environmental
solutions,
and
the
food
industry.
Specifically,
cellulose
nanocrystals
(CNC)
demonstrated
excellent
biocompatibility,
adaptable
surface
chemistry,
low
density,
optical
capabilities,
biodegradability,
renewability,
good
mechanical
properties.
However,
these
unique
characteristics
depend
on
raw
material,
processing,
post-treatment.
New
opportunities
CNC
production
are
being
explored
based
unconventional
resources
new,
environmentally
friendly
processes
replace
highly
polluting
inefficient
conventional
methods.
This
review
evaluated
current
methods
for
obtaining
from
green
processes,
focusing
organic
acids,
enzymes,
mechanical,
oxidative,
radiation-based
