Catalysts,
Journal Year:
2021,
Volume and Issue:
11(8), P. 902 - 902
Published: July 26, 2021
The
past
decade
has
witnessed
a
phenomenal
rise
in
nanotechnology
research
due
to
its
broad
range
of
applications
diverse
fields
including
food
safety,
transportation,
sustainable
energy,
environmental
science,
catalysis,
and
medicine.
distinctive
properties
nanomaterials
(nano-sized
particles
the
1
100
nm)
make
them
uniquely
suitable
for
such
wide
functions.
nanoparticles
when
manufactured
using
green
synthesis
methods
are
especially
desirable
being
devoid
harsh
operating
conditions
(high
temperature
pressure),
hazardous
chemicals,
or
addition
external
stabilizing
capping
agents.
Numerous
plants
microorganisms
experimented
upon
an
eco–friendly,
cost–effective,
biologically
safe
process
optimization.
This
review
provides
comprehensive
overview
on
metallic
NPs
microorganisms,
factors
affecting
synthesis,
characterization
synthesized
NPs.
potential
metal
various
sectors
have
also
been
highlighted
along
with
major
challenges
involved
respect
toxicity
translational
research.
Biochar,
Journal Year:
2022,
Volume and Issue:
4(1)
Published: March 15, 2022
Abstract
Biochar
shows
significant
potential
to
serve
as
a
globally
applicable
material
remediate
water
and
soil
owing
the
extensive
availability
of
feedstocks
conducive
physio-chemical
surface
characteristics.
This
review
aims
highlight
biochar
production
technologies,
characteristics
biochar,
latest
advancements
in
immobilizing
eliminating
heavy
metal
ions
organic
pollutants
water.
Pyrolysis
temperature,
heat
transfer
rate,
residence
time,
type
feedstock
are
critical
influential
parameters.
Biochar’s
efficacy
managing
contaminants
relies
on
pore
size
distribution,
groups,
ion-exchange
capacity.
The
molecular
composition
physical
architecture
may
be
crucial
when
practically
applied
soil.
In
general,
produced
at
relatively
high
pyrolysis
temperatures
can
effectively
manage
via
increasing
area,
hydrophobicity
microporosity.
generated
lower
is
deemed
more
suitable
for
removing
polar
inorganic
through
oxygen-containing
functional
precipitation
electrostatic
attraction.
also
presents
existing
obstacles
future
research
direction
related
biochar-based
materials
effluents
Graphical
Carbon Research,
Journal Year:
2022,
Volume and Issue:
1(1)
Published: June 18, 2022
Abstract
With
social
progress
and
industrial
development,
heavy
metal
pollution
in
water
soils
environment
is
becoming
more
serious.
Although
biochar
a
low-cost
environmentally
friendly
adsorbent
for
ions,
its
adsorption
immobilization
efficiency
still
need
to
be
improved.
As
an
upgraded
version
of
biochar,
modified
has
attracted
extensive
attention
the
scientific
community.
This
review
summarized
recent
research
on
treatment
methods
pollutants
using
biochar.
The
features
advantages
modification
techniques
such
as
physical
modification,
chemical
biological
other
categories
were
discussed.
mechanism
removing
metals
from
soil
by
was
summarized.
It
found
that
had
better
performance
after
which
provided
higher
surface
areas
functional
groups,
enough
binding
sites
combine
ions.
Biochar
very
promising
candidate
environment.
Furthermore,
some
high
valent
ions
could
reduced
low
metals,
Cr(VI)
reduction
Cr(III),
form
precipitates
in-situ
sorption-reduction-precipitation
strategy.
However,
it
direction
efforts
develop
high-efficiency
with
low-cost,
sorption
capacity,
photocatalytic
performance,
no
secondary
future.
Biochar,
Journal Year:
2022,
Volume and Issue:
4(1)
Published: July 26, 2022
Abstract
The
fast
increase
of
population
results
in
the
quick
development
industry
and
agriculture.
Large
amounts
contaminants
such
as
metal
ions
organic
are
released
into
natural
environment,
posing
a
risk
to
human
health
causing
environment
ecosystem
problems.
efficient
elimination
from
aqueous
solutions,
photocatalytic
degradation
pollutants
or
in-situ
solidification/immobilization
heavy
solid
phases
most
suitable
strategies
decontaminate
pollution.
Biochar
biochar-based
composites
have
attracted
multidisciplinary
interests
especially
environmental
pollution
management
because
their
porous
structures,
large
functional
groups,
high
adsorption
capacities
photocatalysis
performance.
In
this
review,
application
biochar
adsorbents
and/or
catalysts
for
different
contaminants,
adsorption-photodegradation
pollutants,
adsorption-(photo)reduction
summarized,
mechanism
was
discussed
advanced
spectroscopy
analysis
DFT
calculation
detail.
doping
oxides
is
main
strategy
narrow
band
gap,
generation
separation
photogenerated
e
−
-h
+
pairs,
produce
more
superoxide
radicals
(·O
2
)
hydroxyl
(·OH),
enhance
visible
light
absorption
performance,
which
dominate
(photo)reduction
valent
metals
low
metals.
environmentally
friendly
materials,
promising
candidates
cleanup.
challenge
perspective
provided
end.
Graphical
