Results in Surfaces and Interfaces,
Год журнала:
2024,
Номер
14, С. 100192 - 100192
Опубликована: Фев. 1, 2024
Water
depollution
via
adsorption
is
an
energy-efficient
technique
that
uses
activated
carbon
produced
from
walnut
shells
to
remove
different
pollutants.
Our
research
integrates
theoretical
and
experimental
approaches
comprehensively
understand
the
subject.
By
analyzing
organic
functional
groups
in
shell-derived
(AC-Ws),
evaluating
performance,
employing
DFT
analysis,
optimizing
conditions,
we
provide
valuable
insights
into
application
of
AC-Ws
for
removing
pesticide
pollutants
wastewater.
The
properties
this
(AC-Ws)
are
identified
by
techniques
such
as
XRD,
FTIR,
SEM/EDX,
pHzpc,
Boehm
titration.
A
response
surface
methodology
(RSM)
has
been
utilized
develop
experiment
aqueous
solutions
two
herbicides,
2,4,5-trichlorophenoxyacetic
acid
(2.4.5-T),
2,4-Dichlorophenoxyacetic
(2,4-D).
Abbreviations
technical
terms
will
be
explained
when
first
used,
objective
language
used
throughout.
Grammar
spelling
conform
British
standards.
examined
removal
herbicides
based
on
three
independent
variables;
pH,
dosage,
temperature,
within
specific
ranges
(pH:
4–10,
dosage:
0.1–0.3
g/L,
temperature:
20–40
°C).
conducted
17
experiments
using
Design-Expert
software.
Optimal
conditions
included
pH
4
dosage
0.3
g/L
2.4.5-T
5
0.1
2,4-D.
These
demonstrated
efficiency
98%
desirability
function
1.000
92%
findings
suggest
process
was
thermodynamically
favorable
exothermic.
data
described
accurately
pseudo-second
order
kinetic
model,
Freundlich
isotherm
model
showed
good
alignment
with
equilibrium
data.
Using
method,
functions
were
adsorbent's
surface,
density
theory
(DFT)
applied
evaluate
mechanism
sites.
Journal of The Electrochemical Society,
Год журнала:
2025,
Номер
172(1), С. 013505 - 013505
Опубликована: Янв. 1, 2025
This
study
focused
on
examining
how
the
presence
of
a
TiO
2
nanotube
(NT)
interlayer
and
decreasing
particle
size
affects
electrochemical
performance
service
life
PbO
-coatings
titanium
substrate.
The
Ti/TiO
-NT/
β
-PbO
Ti/PbO
electrodes
were
synthesized
using
direct
current
with
3
μm
optimized
density
values,
while
-NT/nano
35
nm
simple
pulse
electrodeposition
method
duty
cycle.
results
cyclic
voltammetry
demonstrated
that
-NT/nanoPbO
electrode
exhibited
larger
electrochemically
active
surface
area,
charge
values
3.06
mC
cm
−2
,
lower
transfer
resistance
9.47
Ω.cm
compared
to
-NT/microPbO
which
had
9.26
14.62
61.58
8900
respectively.
Accelerated
tests
showed
/nanoPbO
(55
h)
better
than
those
(50
18
h
respectively).
Moreover,
highest
in
degrading
methylene
blue
simulated
wastewater
by
bulk
electrolysis,
removal
efficiency
approximately
100%
at
optimal
(60
mAcm
),
surpassing
(76%)
(53%).
