Langmuir,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Feb. 14, 2025
Water
pollution
by
dyes
is
a
serious
environmental
issue
of
modern
society
that
needs
to
be
addressed
effectively.
Herein,
promising
adsorbent,
i.e.,
3D
composite
aerogel,
was
developed
using
reduced
graphene
oxide
and
silk
fibroin
(rGO-SF)
via
hydrothermal
freeze-drying
techniques.
The
efficiency
the
prepared
aerogel
toward
methylene
blue
(MB)
dye
adsorption
explored
in
batch
experiments.
A
study
revealed
capacity
rGO-SF120
as
249.89
mg/g
dye.
also
selectively
adsorbs
MB
over
other
dyes,
such
rhodamine
B
(RhB)
orange
(MO).
process
mainly
chemical
(as
data
fitted
well
both
pseudo-second-order
Elovich
kinetic
models)
followed
Langmuir
model,
indicating
it
formed
single
layer
on
its
surface.
Overall,
an
effective
potential
candidate
for
treating
dye-loaded
water
with
high
efficiency.
Energy & Fuels,
Journal Year:
2024,
Volume and Issue:
38(11), P. 9751 - 9771
Published: May 24, 2024
Pore
size
distribution
is
a
key
parameter
in
the
performance
of
biobased
pyrolytic
char
novel
applications.
In
industrial-scale
production,
feedstock
particles
typically
exceeds
few
millimeters.
For
such
particle
sizes,
it
challenge
to
tailor
final
properties
based
only
on
process
conditions
(experimental
and
modeling-wise).
Pyrolysis
studies
single
larger
than
millimeters
provide
data
sets
useful
for
modeling
optimization
process.
Part
1
this
research
focused
pyrolysis
beech
wood,
secondary
cracking,
its
effect
porous
texture.
It
contains
quantitative
assessment
effects
five
conversion
temperatures
(from
300
840
°C)
two
dimensions
(Ø8
×
10
mm
Ø8
16
mm)
composition
vapors
pore
morphology
char.
Results
from
real-time
temperature
mass
changes
are
presented
along
with
release
profiles
15
vapor
constituents
measured
by
infrared
spectroscopy.
Furthermore,
characterization
collected
bio-oil
(using
GC-MS/FID)
textural
hierarchical
structured
(through
N2
CO2
adsorption,
Hg
porosimetry,
scanning
electron
microscopy
(SEM))
was
performed.
Cracking
above
500
°C
compound-specific.
The
polyaromatic
hydrocarbons
(PAHs)
yield,
between
680
°C,
increased
5
times
9
ones.
Besides
temperature,
PAH
yield
suspected
correlate
length
PAHs/soot
deposition
micropores.
showed
that
macropores
accounted
over
80%
total
volume,
regardless
length.
Increasing
60%
caused
reduction
specific
surface
area
(ca.
15%
at
resulting
char,
mainly
due
microporosity.
Based
findings,
production
application
suggested.
obtained
will
be
used
2
research,
devoted
subsequent
CFD
Gels,
Journal Year:
2024,
Volume and Issue:
10(3), P. 211 - 211
Published: March 21, 2024
Water
is
one
of
the
fundamental
resources
for
existence
humans
and
environment.
Throughout
time,
due
to
urbanization,
expanding
population,
increased
agricultural
production,
intense
industrialization,
significant
pollution
with
persistent
contaminants
has
been
noted,
placing
water
quality
in
danger.
As
a
consequence,
different
procedures
various
technologies
have
tested
used
order
ensure
that
sources
are
safe
use.
The
adsorption
process
often
considered
wastewater
treatment
its
straightforward
design,
low
investment
cost,
availability,
avoidance
additional
chemicals,
lack
undesirable
byproducts,
demonstrated
efficacious
potential
treating
eliminating
organic
contaminants.
To
accomplish
application,
need
develop
innovative
materials
become
an
essential
goal.
In
this
context,
overview
recent
advances
hydrogels
based
on
chitosan
nanocomposites
their
application
depollution
contaminated
dyes
reported
herein.
present
review
focuses
(i)
challenges
raised
by
synthesis
characterization
hydrogels;
(ii)
discussion
impact
main
parameters
affecting
process;
(iii)
understanding
isotherms,
kinetics,
thermodynamic
behavior;
(iv)
examination
possibility
recycling
reusing
hydrogels.
