Journal of Cleaner Production,
Год журнала:
2022,
Номер
348, С. 131280 - 131280
Опубликована: Март 15, 2022
Preparing
sustainable
and
highly
efficient
biochars
as
adsorbents
remains
a
challenge
for
organic
pollutant
management.
Herein,
novel
nitrogen-doped
carbon
material
has
been
synthesized
via
facile
single-step
pyrolysis
method
using
wild
mixture
of
microalgae
precursor.
Phosphoric
acid
(H3PO4)
was
employed
activation
agent
to
generate
pores
in
the
material.
In
addition,
effect
melamine
(nitrogen
source)
evaluated
over
biochar
properties
by
N-doping
process.
The
results
showed
that
biochar's
specific
surface
area
(SSA)
increased
from
324
433
m2
g−1
with
process
percentage
micropores
structure.
Chemical
characterization
indicated
helped
increase
graphitization
contents
oxygen
nitrogen
groups
on
surface.
were
successfully
tested
adsorb
acetaminophen
treat
two
synthetic
effluents,
N-doped
presented
highest
efficiency.
kinetics
equilibrium
data
well
represented
General-order
model
Liu
isotherm
model,
respectively.
maximum
sorption
capacities
attained
101.4
120.7
mg
non-doped
doped
biochars,
adsorption
mechanism
suggests
pore-filling
dominant
uptake.
could
efficiently
remove
up
74%
contaminants
effluents.
