Environmental Research Engineering and Management,
Journal Year:
2024,
Volume and Issue:
80(1), P. 21 - 31
Published: April 5, 2024
Apeanut
shell
was
used
as
a
low-cost
agricultural
waste
to
eliminateacid
blue
25
dye
from
an
aqueous
solution.
Contact
time,
sorbate
concentration,
particle
size,
and
sorbent
mass
were
all
investigated
in
batch
sorption
tests.
The
process
terms
of
equilibrium
kinetics
models.
is
better
agreement
with
the
pseudo-second-order
model,
greater
regression
coefficient
value
1
under
experimental
conditions,
according
adsorption
kinetic
results.
models
Freundlich,
Langmuir
Temkin
describe
isotherms
adsorption,
data
consistent
Freundlich
isotherm
higher
value,
R2.
Based
on
findings,
peanut
much
more
economical,
cheap,
viable,
very
effective
for
removal
acid
Foods,
Journal Year:
2023,
Volume and Issue:
12(17), P. 3181 - 3181
Published: Aug. 24, 2023
In
recent
years,
there
has
been
growing
interest
in
bioactive
plant
compounds
for
their
beneficial
effects
on
health
and
potential
reducing
the
risk
of
developing
certain
diseases
such
as
cancer,
cardiovascular
diseases,
neurodegenerative
disorders.
The
extraction
techniques
conventionally
used
to
obtain
these
phytocompounds,
however,
due
use
toxic
solvents
high
temperatures,
tend
be
supplanted
by
innovative
unconventional
techniques,
line
with
demand
environmental
economic
sustainability
new
chemical
processes.
Among
non-thermal
technologies,
cold
plasma
(CP),
which
successfully
some
years
food
industry
a
treatment
improve
shelf
life,
seems
one
most
promising
solutions
green
CP
is
characterized
its
low
impact,
cost,
better
yield
phytochemicals,
saving
time,
energy,
compared
other
classical
light
considerations,
this
review
aims
provide
an
overview
critical
issues
related
particularly
polyphenols
essential
oils.
To
current
knowledge
status
future
insights
sector,
bibliometric
study,
providing
quantitative
information
research
activity
based
available
published
scientific
literature,
was
carried
out
VOSviewer
software
(v.
1.6.18).
Scientometric
analysis
seen
increase
studies
over
past
two
underlining
community
natural
substance
technique.
literature
analyzed
have
shown
that,
general,
able
oil
polyphenols.
Furthermore,
composition
phytoextract
obtained
would
appear
influenced
process
parameters
intensity
(power
voltage),
working
gas
used.
showed
that
best
yields
terms
total
antioxidant
antimicrobial
properties
phytoextracts
were
using
mild
conditions
nitrogen
gas.
non-conventional
technique
very
recent,
further
are
needed
understand
optimal
adopted,
above
all,
in-depth
mechanisms
plasma–plant
matrix
interaction
verify
possibility
any
side
reactions
could
generate,
highly
oxidative
environment,
potentially
hazardous
substances,
limit
exploitation
at
industrial
level.
Applied Sciences,
Journal Year:
2023,
Volume and Issue:
13(17), P. 9659 - 9659
Published: Aug. 26, 2023
Toxins
in
water,
such
as
metal
ions
and
dyes,
have
become
a
global
challenge
to
humanity
by
causing
several
serious
illnesses.
Removal
of
these
toxins
from
water
is
needed
for
human
health
environmental
concerns.
This
work
investigated
the
use
hemp
seeds
an
environmentally
friendly
adsorbent
applications
treatment.
Pristine
(PHSs)
were
carbonized
at
500
700
°C
obtain
carbon-based
(CHS-500
CHS-700
removal
cadmium
methylene
blue.
The
morphological
functional
groups
adsorbents
pristine
determined
SEM
FTIR.
Isotherm
studies
showed
that
Langmuir
model
best
described
adsorption
process
based
on
homogenous
surfaces.
maximum
capacities
obtained
with
36.88
52.61
mg/g
uptake
blue,
respectively.
effect
contact
time
sorption
rate
was
rapid
initially,
followed
slower
increment
due
saturation
active
sites.
ΔS°
values
positive,
demonstrating
increased
randomness
degree
freedom
blue
water.
trends
CHS-500
temperature
rose;
decrease
observed
PHSs.
result
suggests
endothermic
exothermic
pseudo-second-order
better
both
pollutants
adsorbents.
research
illustrates
great
potential
removing
dye
Applied Water Science,
Journal Year:
2024,
Volume and Issue:
14(3)
Published: Feb. 20, 2024
Abstract
The
aim
of
the
present
study
was
direct
comparison
two
popular
minerals,
bauxite
and
palygorskite,
as
adsorbents
for
removal
cephalexin
(CPX)
from
aqueous
solutions
regeneration
spent
through
cold
atmospheric
plasma.
Batch
kinetics
isotherm
studies
were
carried
out
to
evaluate
effect
contact
time,
initial
CPX
concentration,
adsorbent
dosage,
pH
temperature.
characterized
by
ATR-FTIR,
N
2
sorption,
SEM
XRD,
while
several
isotherm,
kinetic
thermodynamic
models
evaluated
attempting
shed
light
on
adsorption
mechanisms.
both
better
described
Langmuir
model,
with
an
capacity
112.36
mg/g
palygorskite
11.79
bauxite.
Thermodynamics
revealed
endothermic
spontaneous
character
process,
indicating
chemisorption
main
mechanism
adsorbents.
pseudo-second-order
Elovich
fitted
satisfactorily
onto
bauxite,
well
presented
Weber–Morris
that
pore
diffusion
is
also
involved
in
process.
minerals
decreased
significantly
after
being
used
cycles
then
almost
completely
recovered
(regeneration
efficiency
99.6%
98%
respectively)
inside
a
novel
plasma
microbubble
reactor
energized
high-voltage
nanopulses,
revealing
potential
these
be
reused.
In
addition
adsorbents,
eliminated
transferred
solid
phase
during
