Carbon Research,
Journal Year:
2022,
Volume and Issue:
1(1)
Published: June 18, 2022
Abstract
Contamination
of
aquatic
and
soil
systems
by
organic
inorganic
pollutants
has
become
a
serious
issue
concern
worldwide.
Viable
cost-effective
solutions
are
urgently
needed
to
mitigate
the
negative
impacts
diverse
on
environment
human
health.
Biochar
emerged
as
an
effective
green
material
for
remediation
wide
spectrum
(in)organic
pollutants.
However,
applications
pristine
biochar
in
decontamination
have
encountered
bottlenecks
due
its
limited
properties
which
cannot
meet
desired
requirements.
Therefore,
multiple
modification
methods
been
developed
tailoring
physicochemical
enhance
effectiveness
environmental
decontamination.
This
work
provides
holistic
review
recent
advances
synthesis
engineered
using
physical,
chemical,
biological
methods.
Further
related
mechanisms
field
also
summarized
discussed.
In
addition,
existing
challenges
research
gaps
outlined,
future
needs
proposed.
summarizes
scientific
opportunities
comprehensive
understanding
biochars
materials
contaminated
water
soil.
Graphical
abstract
Colloids and Surfaces A Physicochemical and Engineering Aspects,
Journal Year:
2023,
Volume and Issue:
669, P. 131493 - 131493
Published: April 20, 2023
Heteroatom
doping
is
a
highly
effective
strategy
that
can
be
used
to
modify
carbonaceous
adsorbents
improve
their
chemical
reactivity
and
increase
adsorptive
properties.
Herein,
simple
method
reported
for
the
preparation
of
nitrogen-doped
biochar
using
natural
abundant
biowaste
from
birch
trees
melamine
as
nitrogen
dopant
adsorption
Acid
red
18
(AR-18)
dye
water.
The
doped
biochars
were
also
characterized
performance
during
treatment
synthetic
effluents.
physicochemical
characterization
results
showed
N-doping
process
provoked
remarkable
chances
on
morphology,
pore
structure,
surface
functionalities.
N-doped
functional
groups
with
5.4
%
N
in
its
structure
while
non-doped
carbon
traces
0.47
%.
Moreover,
specific
area
was
dominated
by
mesopores
(86.4
%)
micropores
(67.8
%).
Raman
analysis
incorporation
created
more
defects
structure.
experiments
boosted
performance.
maximum
capacity
545.2
mg
g−1,
exhibited
444.5
i.e.,
an
22.6
kinetic
equilibrium
studies
Avrami
fractional
order
Liu
models
most
suitable
describing
experimental
AR-18
data.
parameters
found
obey
nonlinear
relationship
temperature.
Since
are
porous,
filling
main
mechanism,
however;
removal
suggests
interactions
such
electrostatic,
hydrogen
bonds,
Lewis
acid-base,
π-π
between
adsorbent
involved.
thermodynamic
solution
dependent
temperature,
exothermic,
spontaneous.
excellent
performances
contaminants
effluents
confirming
high
efficiency
color
removal.
This
research
shows
efficient
design
effective,
low-cost,
sustainable
remediate
contamination
wastewater.
Scientific Reports,
Journal Year:
2024,
Volume and Issue:
14(1)
Published: Jan. 2, 2024
The
pollution
of
soil
and
aquatic
systems
by
inorganic
organic
chemicals
has
become
a
global
concern.
Economical,
eco-friendly,
sustainable
solutions
are
direly
required
to
alleviate
the
deleterious
effects
these
ensure
human
well-being
environmental
sustainability.
In
recent
decades,
biochar
emerged
as
an
efficient
material
encompassing
huge
potential
decontaminate
wide
range
pollutants
from
systems.
However,
application
raw
biochars
for
pollutant
remediation
is
confronting
major
challenge
not
getting
desired
decontamination
results
due
its
specific
properties.
Thus,
multiple
functionalizing/modification
techniques
have
been
introduced
alter
physicochemical
molecular
attributes
increase
their
efficacy
in
remediation.
This
review
provides
comprehensive
overview
latest
advancements
developing
functionalized/modified
via
biological
other
physiochemical
techniques.
Related
mechanisms
further
applications
modified
water
discussed
summarized.
Furthermore,
existing
research
gaps
challenges
discussed,
well
study
needs
suggested.
work
epitomizes
scientific
prospects
complete
understanding
employing
candidate
polluted
regenerative
development.
Biochar,
Journal Year:
2024,
Volume and Issue:
6(1)
Published: March 14, 2024
Abstract
The
swift
advancement
of
sustainable
energy
technologies,
coupled
with
the
urgent
need
to
address
environmental
challenges,
has
generated
considerable
interest
in
multifaceted
applications
biochar
materials
promote
energy,
water,
and
sustainability.
This
comprehensive
review
examines
recent
advancements
production
functionalized
materials,
emphasizing
their
pivotal
roles
conversion
storage,
wastewater
treatment,
CO
2
reduction,
soil
amelioration,
promotion
carbon
neutrality
within
a
circular
economy
framework.
functionalization
involves
surface
chemistry
porosity
modifications,
achieved
through
techniques
like
templating,
chemical
activation,
metal
impregnation,
or
heteroatom
doping.
These
modifications
substantially
enhance
catalytic
activity,
storage
capacity,
cycling
stability
making
them
particularly
effective
diverse
such
as
water
splitting,
fuel
cells,
supercapacitors.
Additionally,
demonstrate
remarkable
efficacy
catalysts
adsorbents
proficiently
removing
pollutants
heavy
metals,
organic
contaminants,
nutrients,
thereby
facilitating
resource
recovery
from
wastewater.
also
underscores
potential
capture
conversion,
exploring
innovative
strategies
augment
adsorption
capacity
state-of-the-art
processes
for
transforming
captured
into
valuable
fuels
chemicals.
In
summary,
this
offers
insights
research,
underscoring
its
substantial
commercial
versatile
material
contributing
cleaner
more
future.
Article
Highlights
current
status
research
is
comprehensively
reviewed.
fields
critically
examined.
Technology
readiness
levels
(TRLs)
various
biochar-based
technologies
are
evaluated.
Graphical
Resources,
Journal Year:
2024,
Volume and Issue:
13(1), P. 8 - 8
Published: Jan. 5, 2024
The
global
impact
of
water
and
soil
contamination
has
become
a
serious
issue
that
affects
the
world
all
living
beings.
In
this
sense,
multiple
treatment
alternatives
have
been
developed
at
different
scales
to
improve
quality.
Among
them,
biochar
suitable
alternative
for
environmental
remediation
due
its
high
efficiency
low
cost,
raw
material
used
production
comes
from
residual
biomass.
A
is
carbonaceous
with
interesting
physicochemical
properties
(e.g.,
surface
area,
porosity,
functional
groups),
which
can
be
prepared
by
synthesis
methods
using
agricultural
wastes
(branches
banana
rachis,
cocoa
shells,
cane
bagasse,
among
others)
as
feedstock.
This
state-of-the-art
review
based
on
general
description
remediation.
Biochar’s
production,
synthesis,
uses
also
analyzed.
addition,
work
shows
some
thus
several
applications,
like
removing
heavy
metals,
oil,
dyes,
other
toxic
pollutants.
Physical
chemical
modifications,
precursors,
dopants,
promoting
agents
Fe
N
species)
discussed.
Finally,
primary
corresponding
mechanism
quality
(via
adsorption,
heterogeneous
photocatalysis,
advanced
oxidation
processes)
described,
both
laboratory
medium
large
scales.
Considering
advantages,
methods,
promising
potential
mitigate
problems
improving
quality,
reducing
greenhouse
gas
emissions,
circular
economy
through
biomass,
generating
value-added
products
uses.
Heliyon,
Journal Year:
2024,
Volume and Issue:
10(4), P. e25785 - e25785
Published: Feb. 1, 2024
Biochar
usage
for
removing
heavy
metals
from
aqueous
environments
has
emerged
as
a
promising
research
area
with
significant
environmental
and
economic
benefits.
Using
the
PICO
approach,
question
aimed
to
explore
using
biochar
remove
media.
We
merged
data
Scopus
Web
of
Science
Core
Collection
databases
acquire
comprehensive
perspective
subject.
The
PRISMA
guidelines
were
applied
establish
search
parameters,
identify
appropriate
articles,
collect
bibliographic
information
publications
between
2010
2022.
bibliometric
analysis
showed
that
biochar-based
metal
remediation
is
field
increasing
scholarly
attention.
removal
Cr(VI),
Pb(II),
Cd(II),
Cu(II)
was
most
studied
among
metals.
identified
five
main
clusters
centered
on
adsorption,
water
treatment,
adsorption
models,
analytical
techniques,
hydrothermal
carbonization
by
performing
keyword
co-occurrence
analysis.
Trending
topics
include
reusability,
modification,
acid
mine
drainage
(AMD),
wastewater
hydrochar.
reutilization
metal-loaded
spent
includes
transforming
it
into
electrodes
supercapacitors
or
stable
catalyst
materials.
This
study
provides
overview
in
aquatic
highlights
knowledge
gaps
future
directions.
