Practice, progress, and proficiency in sustainability,
Journal Year:
2023,
Volume and Issue:
unknown, P. 331 - 341
Published: Sept. 18, 2023
The
current
studies
deal
with
the
use
of
low-cost
orange
peels
as
an
adsorbent
for
removal
methylene
blue
from
aqueous
solution
in
batch
adsorption
experiment
laboratory.
dye
on
peel
was
examined
basis
different
parameters
such
concentration,
quantity
adsorbent,
particle
size
peel,
pH,
and
contact
time
between
adsorbate.
Also,
effects
these
were
studied.
favorable
acidic
pH.
Maximum
takes
place
at
pH
6.
efficiency
increases
dosage.
Adsorbent
dosage
0.5
g
shows
considerable
removal.
Dye
color
rate
increase
Langmuir
model
fits
better
to
equilibrium
data.
capacity
is
quite
low.
Orange
can
be
used
a
substitute
expensive
it
cheap
bio
adsorbent.
Applied Sciences,
Journal Year:
2025,
Volume and Issue:
15(3), P. 1052 - 1052
Published: Jan. 21, 2025
Hydrothermal
carbonization
(HTC)
is
a
promising
thermochemical
process
to
convert
residues
into
hydrochar.
While
conventional
HTC
utilizes
one
type
of
residue
as
raw
material
only,
Co-HTC
generally
combines
two.
By
mixing
dry
and
wet
wastes,
can
advantageously
avoid
water
addition.
Therefore,
this
work
investigated
the
potential
hydrochar
derived
from
sawdust
non-dewatered
sewage
sludge
dye
(methylene
blue)
adsorbent
evaluated
toxicity
resulting
(PW)
on
Daphnia
magna.
Three
hydrochars
were
produced
by
at
180,
215,
250
°C
named
H-180,
H-215,
H-250,
respectively.
For
methylene
blue
adsorption,
H-180
H-215
had
better
performance
than
H-250.
Both
presented
maximum
adsorption
capacity
approximately
70
mg·g−1,
which
was
superior
compared
with
other
in
literature.
Moreover,
removal
percentage
obtained
remained
satisfactory
even
after
five
cycles.
Regarding
toxicological
assays
PWs,
raising
temperature
increased
variety
substances
PW
composition,
higher
D.
The
EC50
values
PW-180,
PW-215,
PW-250
1.13%,
0.97%,
0.51%,
This
highlights
importance
searching
for
treatment
valorization
PW.
Instead
viewing
by-product
an
effluent
be
treated
disposed
of,
it
imperative
assess
PWs
obtaining
added-value
products.
RSC Advances,
Journal Year:
2025,
Volume and Issue:
15(9), P. 6634 - 6651
Published: Jan. 1, 2025
This
study
investigates
the
ammonium
(NH
4
+
)
adsorption
capabilities
of
hydrochar
derived
from
paper
waste
sludge
(PWSH)
and
its
modified
variant
with
ZnO
(PWSH@ZnO).
Journal of Functional Biomaterials,
Journal Year:
2024,
Volume and Issue:
15(11), P. 340 - 340
Published: Nov. 12, 2024
Iron
oxide
nanoparticles
(IONPs)
have
garnered
significant
attention
in
biomedical
applications
due
to
their
unique
magnetic
properties,
biocompatibility,
and
versatility.
This
review
comprehensively
examines
the
synthesis
methods,
surface
functionalization
techniques,
diverse
of
IONPs.
Various
chemical
physical
including
coprecipitation,
sol-gel
processes,
thermal
decomposition,
hydrothermal
synthesis,
sonochemical
routes,
are
discussed
detail,
highlighting
advantages
limitations.
Surface
strategies,
such
as
ligand
exchange,
encapsulation,
silanization,
explored
enhance
biocompatibility
functionality
Special
emphasis
is
placed
on
role
IONPs
biosensing
technologies,
where
optical
properties
enable
advancements,
surface-enhanced
Raman
scattering
(SERS)-based
biosensors,
fluorescence
field-effect
transistor
(FET)
biosensors.
The
explores
how
sensitivity
selectivity
detecting
biomolecules,
demonstrating
potential
for
point-of-care
diagnostics.
Additionally,
resonance
imaging
(MRI),
targeted
drug
delivery,
tissue
engineering,
stem
cell
tracking
discussed.
challenges
future
perspectives
clinical
translation
also
addressed,
emphasizing
need
further
research
optimize
ensure
safety
efficacy
medical
applications.
aims
provide
a
comprehensive
understanding
current
state
both
broader
fields.
Molecules,
Journal Year:
2025,
Volume and Issue:
30(7), P. 1536 - 1536
Published: March 30, 2025
Sugarcane
bagasse
(SCB)
was
transformed
into
polyaminocarboxylated
modified
hydrochar
(ACHC)
by
hydrothermal
carbonization
(HTC),
which
then
followed
activation,
etherification,
amination,
and
carboxylation
successively.
ACHC
systematically
characterized,
batch
adsorption
studies
were
used
to
assess
its
methylene
blue
(MB)
capacity.
Adsorption
analyzed
isotherm
models,
the
mass
transfer
model,
thermodynamics
model.
Density
functional
theory
(DFT)
utilized
explain
mechanisms.
The
findings
demonstrated
one
type
of
endothermic,
spontaneous,
homogenous
monolayer
with
intra-particle
diffusion,
containing
both
chemical
physical
adsorption,
involving
electrostatic
attraction,
hydrogen
bonding,
π-π
interaction.
At
303
323
K,
highest
capacity
1017.29
1060.45
mg·g−1,
respectively.
Furthermore,
when
recycle
time
4,
equilibrium
remained
at
665.43
implied
fairly
good
regeneration
performance.
modification
provided
a
simple,
environmentally
friendly,
economical
solution
for
converting
sugarcane
an
efficient
adsorbent
MB
treatment.
International Journal of Phytoremediation,
Journal Year:
2025,
Volume and Issue:
unknown, P. 1 - 21
Published: April 4, 2025
Pomegranate
peel
waste
in
the
forms
of
raw
biomass,
biochar
and
activated
carbon
has
been
explored
as
adsorbents
water
treatment.
This
review
examined
discussed
published
works
between
2008
2024
that
focused
on
utilization
pomegranate
with
emphasis
preparation
strategies,
characterization
techniques
applications.
The
thermal
chemical
activation
have
shown
to
improve
structural
properties
resultant
adsorbent
materials
effectively
adsorb
various
pollutants
such
dyes,
heavy
metals,
organics,
inorganic
nonmetals,
pharmaceuticals
from
water.
performance
was
compared
avenues
for
future
research
highlighted
shed
insight
into
potential
environmental
protection.
