Abstract
Bamboo
biochar
was
modified
by
lignin
impregnation
and
microwave
irradiation
to
enhance
its
performance
for
CO
2
capture.
The
pore
structure
of
lignin-impregnated
significantly
affected
the
ratio.
maximum
specific
surface
area
377.32
m
g
−1
micropore
volume
0.163
cm
3
were
observed
on
with
an
ratio
1:20
(mass
biochar).
Lignin
increased
adsorption
capacity
up
134.46
mg
.
Correlation
analysis
confirmed
crucial
role
biochar’s
in
adsorption.
Avrami
model
fitted
capture
curves
well.
calculation
activation
energy
suggested
that
process
dominated
physical
mechanism
assisted
partial
chemical
mechanism.
Meanwhile,
Langmuir
isotherm
indicated
transformed
larger
pores
into
more
uniform
micropores,
thereby
making
closer
monolayer
Both
high
reusability
(89.79–99.06%)
after
10
successive
cycles
excellent
selectivity
competitive
is
outstanding
adsorbent
Graphical
Materials Today Sustainability,
Год журнала:
2023,
Номер
24, С. 100483 - 100483
Опубликована: Июль 29, 2023
Over
the
last
decade,
CO2
adsorption
technology
has
quickly
gained
popularity
and
is
now
widely
applied
in
global
CCUS
projects
due
to
playing
an
important
role
achieving
net-zero
emissions
by
2050.
As
a
result,
new
materials,
or
methods
of
post-modification
those
already
available
have
been
successively
reported
enhance
efficiency
capture
from
flue
gases.
This
paper
discusses
systematic
understanding
fundamental
aspects
current
research
trends
discussed
terms
developing
selected
solid
adsorbent
with
particular
emphasis
on
upcoming
challenges.
The
candidates
are
reviewed
considering
practical
drawbacks
imposed
industrial
scale
economics,
including
carbon-based
MOFs,
polymers,
zeolite,
silica,
alumina,
metal
oxides,
amine-based
adsorbents,
other
composite
porous
materials.
Solid
sorbents
derived
biomass,
residues,
their
thermochemical
conversion
also
studied
high
need
for
cost-effective
raw
materials
crucial
circular
economy.
Lastly,
techno-economic
analysis
(TEA)
included
provide
most
criteria
that
should
be
considered
when
adsorbents
implemented
scale.
Consequently,
review
summarized,
recommendations
offered
future
development
aims
establish
comprehensive
theoretical
basis
characterization
technologies
currently
used
reduce
emissions,
along
highlighting
identification
precise
articulation
paths
could
beneficial
address
over
next
years.
Abstract
Carbon
neutrality
by
the
mid-twenty-first
century
is
a
grand
challenge
requiring
technological
innovations.
Biochar,
traditional
soil
amendment
which
has
been
used
for
fertility
improvement
and
contaminant
remediation,
revealed
new
vitality
in
this
context.
In
review
we
highlight
huge
potential
of
biochar
application
different
fields
to
mitigate
as
high
2.56
×
10
9
t
CO
2
e
total
greenhouse
gas
(GHG)
emissions
per
year,
accounting
5.0%
global
GHG
emissions.
Soil
applications
either
controlled-release
fertilizer
or
an
immobilization
agent
offer
improved
health
while
simultaneously
suppressing
CH
4
N
O.
Non-soil
also
contribute
carbon
unique
ways.
Firstly,
ruminant
feed
decreases
via
physical
sorption
enhanced
activities
methanotrophs.
Secondly,
can
be
green
catalyst
biorefinery.
Besides,
additive
Portland
cement
low
impact
development
(LID)
infrastructure
lowers
footprint
builds
resilience
climate
change.
Furthermore,
novel
batteries
supercapacitors
energy
storage
purposes.
Finally,
adsorption
capacity
makes
it
possible
being
sorbent
capture,
utilization,
(CCUS).
We
advocate
that
future
research
should
further
explore
effectiveness
systems
change
mitigation
large
scale
applications,
assess
economic
social
viability
local
combat
Graphical
Carbon Capture Science & Technology,
Год журнала:
2022,
Номер
4, С. 100059 - 100059
Опубликована: Июль 14, 2022
The
global
industrialization
accelerates
the
use
of
fossil
fuels
and
hence
excessive
emissions
greenhouse
gasses,
especially
carbon
dioxide
(CO2),
which
poses
a
serious
threat
to
ecological
environment.
CO2
capture
is
considered
as
potential
strategy
reduce
amount
released
into
atmosphere.
development
adsorption
materials
that
are
both
economically
feasible
effective
most
critical
issue.
Biochar
promising
candidate
for
among
materials.
It
offers
diverse
range
raw
lower
environmental
impact
than
other
adsorbent
Even
though
pristine
biochar
could
be
employed
directly
capture,
it
generally
exhibits
poor
performance.
Therefore,
needs
modified
in
practical
applications
improve
physicochemical
properties
such
specific
surface
area,
pore
structure,
functional
groups.
This
paper
summaries
recent
research
advances
biochar-based
adsorbents
adsorption.
Pre-combustion
technology
post-combustion
investigated.
production
influence
process
conditions
on
capacity
described
detail.
mechanism
also
discussed,
summarized
physical
chemical
adsorption,
respectively,
well
corresponding
presentation
some
current
methods
physical/chemical
modification
biochar.
Finally,
future
prospects
proposed
order
provide
guideline
by
Despite
progress
made
more
efforts
needed
produce
with
higher
long-term
stability
large-scale
capture.
Journal of CO2 Utilization,
Год журнала:
2024,
Номер
81, С. 102727 - 102727
Опубликована: Март 1, 2024
In
the
face
of
escalating
global
climate
challenges,
effective
carbon
dioxide
(CO₂)
capture
techniques
remain
at
forefront
mitigating
anthropogenic
greenhouse
gas
emissions.
This
comprehensive
review
elucidates
latest
advancements
in
CO₂
capture,
emphasizing
two
predominant
methodologies:
absorption
and
adsorption.
We
delve
into
mechanisms
underlying
each
process,
highlighting
novel
materials
technologies
that
have
emerged
over
recent
years.
For
absorption,
focus
is
placed
on
material
design
strategy,
identifying
new
class
amines,
ionic
liquids
(ILs)
nanofluids
for
enhanced
CO2
capacities
reduced
energy
requirements.
realm
adsorption,
synthesis
innovative
adsorbents,
such
as
metal
organic
framework
(MOF),
polymers,
inorganic
silicon-based
biochar
byproducts
from
biomass
with
superior
selectivity
stability,
explored.
Additionally,
addresses
challenges
associated
method,
offering
insights
potential
avenues
further
research.
By
providing
a
holistic
overview
current
landscape
this
article
serves
pivotal
resource
researchers
industry
professionals
aiming
to
advance
sustainable
solutions
combat
change.
Journal of CO2 Utilization,
Год журнала:
2022,
Номер
68, С. 102373 - 102373
Опубликована: Дек. 19, 2022
Carbon
capture
and
sequestration
technologies
are
essential
to
reduce
CO2
emissions
which
responsible
for
global
warming.
Carbon-based
materials
can
play
an
important
role
in
the
reduction
of
emissions.
These
normally
produced
from
biomass
through
such
as
pyrolysis
hydrothermal
carbonization.
The
type
feedstock
conversion
conditions
significantly
affect
textual
properties
surface
chemistry
carbon
materials.
Various
modification
methods
material
activation
or
N-doping
improve
obtain
better
effects.
This
review
summarizes
recently
reported
research
areas
using
biomass-based
capture.
critically
analyzed.
Meanwhile,
mechanisms
process
different
also
discussed.
Finally,
potential
future
directions
suggested
promote
Water Research X,
Год журнала:
2023,
Номер
18, С. 100167 - 100167
Опубликована: Янв. 1, 2023
With
the
rapid
growth
yield
of
global
sewage
sludge,
rational
and
effective
treatment
disposal
methods
are
becoming
increasingly
needed.
Biochar
preparation
is
an
attractive
option
for
sludge
treatment,
excellent
physical
chemical
properties
derived
biochar
make
it
environmental
improvement.
Here,
current
application
state
was
comprehensively
reviewed,
advances
in
mechanism
capacity
water
contaminant
removal,
soil
remediation,
carbon
emission
reduction
were
described,
with
particular
attention
to
key
challenges
involved,
e.g.,
possible
risks
low
efficiency.
Several
new
strategies
overcoming
barriers
realize
highly
efficient
improvement
highlighted,
including
modification,
co-pyrolysis,
feedstock
selection
pretreatment.
The
insights
offered
this
review
will
facilitate
further
development
biochar,
towards
addressing
obstacles
its
crisis.
Abstract
Biochar
and
biochar-based
materials
have
been
studied
extensively
in
multidisciplinary
areas
because
of
their
outstanding
physicochemical
properties.
In
this
review
article,
biochar
the
removal
environmental
pollutants,
hydrogen
generation
carbon
dioxide
capture
were
summarized
compared.
The
interaction
mechanisms
discussed
from
experimental
results
characterization
analysis.
high
porous
structures,
active
surface
sites,
(co)doping
single
metals/nonmetals,
incorporation
metal
oxides
or
other
improved
activity
applications.
However,
there
are
still
some
challenges
such
as:
(1)
fact
that
H
2
with
selectivity
produced
syngas
to
meet
real
application
requirement
industrial
is
main
challenge
production;
(2)
selective
CO
stability,
adsorption
capacity
recyclability
at
low-cost
should
be
considered
focused
on;
(3)
sorption-(photo)degradation
organic
chemicals;
(4)
sorption-reduction-extraction/solidification
metals/radionuclides
efficient
methods
for
elimination
pollutants.
end,
perspectives,
possible
techniques
materials’
future
described.
Graphical
Energies,
Год журнала:
2023,
Номер
16(6), С. 2589 - 2589
Опубликована: Март 9, 2023
Global
fossil
fuel
consumption
has
induced
emissions
of
anthropogenic
carbon
dioxide
(CO2),
which
emanated
global
warming.
Significant
levels
CO2
are
released
continually
into
the
atmosphere
from
extraction
fuels
to
their
processing
and
combustion
for
heat
power
generation
including
fugitive
industries
unmanaged
waste
management
practices
such
as
open
burning
solid
wastes.
With
an
increase
in
population
subsequent
rise
energy
demands
generation,
rate
release
is
at
a
much
faster
than
its
recycling
through
photosynthesis
or
fixation,
increases
net
accumulation
atmosphere.
A
large
amount
emitted
various
sources
plants,
vehicles
manufacturing
industries.
Thus,
capture
plays
key
role
race
achieve
zero
emissions,
paving
path
decarbonized
economy.
To
reduce
footprints
industrial
vehicular
attempt
mitigate
effects
warming,
several
capturing
valorization
technologies
have
become
increasingly
important.
Hence,
this
article
gives
statistical
geographical
overview
other
greenhouse
gas
based
on
source
sector.
The
review
also
describes
different
mechanisms
involved
utilization
pre-combustion,
post-combustion,
oxy-fuels
technologies,
direct
air
capture,
chemical
looping
gasification,
ionic
liquids,
biological
fixation
geological
capture.
discusses
captured
value-added
products
clean
energy,
chemicals
materials
(carbonates
polycarbonates
supercritical
fluids).
This
highlights
certain
progressing
some
promising
techniques.