Dalton Jurnal Pendidikan Kimia dan Ilmu Kimia,
Journal Year:
2024,
Volume and Issue:
7(2), P. 123 - 123
Published: Aug. 13, 2024
Karakteristik
alami
zeolit
alam
sangat
mempengaruhi
kemampuannya
untuk
mengadsorpsi
logam
aktif
di
dalam
kerangkanya.
Oleh
karena
itu,
penelitian
ini
bertujuan
mengetahui
konsentrasi
titanium
oksida
yang
sesuai
memodifikasi
Ende
menjadi
bahan
fotokatalis.
Berdasarkan
hasil
penelitian,
disimpulkan
bahwa
(TiO2)
adalah
sebesar
0,2
M
diimpregnasikan
ke
kerangka
Ende.
Zeolit
merupakan
jenis
mordenit
dan
tidak
mengalami
perubahan
struktur
setelah
dengan
kerangkanya,
tetapi
terjadi
pergesaran
sudut
2θ°
sebanyak
0,02
arah
lebih
besar.
Luas
permukaan
terbesar
berada
perlakuan
yaitu
23,365
m2/gram,
penampakan
morfologi
padat
rapi,
serta
peningkatan
rasio
Si/Al.
Perlakuan
larutan
terbaik
mampu
memberikan
16,40%
Environmental Technology & Innovation,
Journal Year:
2023,
Volume and Issue:
33, P. 103495 - 103495
Published: Dec. 21, 2023
Dissolved
Mn2+
in
groundwater
is
dangerous
for
human
health
since
it
may
act
as
a
neurotoxin.
To
address
this
issue,
sorption
has
emerged
an
environmentally-friendly
technology
removal.
This
study
aimed
to
assess
the
effect
of
activation
Chilean
natural
zeolite,
by
modification
its
compensating
cations
with
NaCl,
on
capacity
removal
using
batch
and
fixed-bed
column
studies.
The
activated
zeolites
were
characterized
SEM-EDS,
TXRF,
XRD,
N2
adsorption
assays.
results
studies
demonstrate
that
Na+
enhances
these
from
4.55
5.92
mg
g-1,
negligible
changes
pore
structure.
experimental
data
fitted
well
pseudo-second-order
kinetic
Langmuir
models.
Furthermore,
MnOx(s)
formed
during
was
identified
surface
zeolite
XRD
SEM-EDS
analysis.
conducted
at
two
bed
heights:
H1
(5
cm)
H2
(10
cm).
breakthrough
curves
adjusted
models
Thomas
Dose-response.
dose-response
model
adequately
described
both
R2>0.90.
system
(qmdr)
2.38
5.13
H2,
respectively.
regeneration
achieved
NaCl
solution
improving
efficiency
after
reuse.
work
highlights
potential
effective
material
viable
improve
water
quality
affected
geogenic
contamination.
Minerals,
Journal Year:
2023,
Volume and Issue:
13(9), P. 1141 - 1141
Published: Aug. 29, 2023
Although
electrocoagulation
combined
with
zeolite
(ECZ)
shows
higher
efficiency
in
wastewater
treatment,
the
actual
contribution
of
particle
size
has
not
been
fully
explored.
In
this
work,
influence
synthetic
SZ
(<90,
90–160,
and
160–600
μm)
on
ECZ
treatment
compost
leachate
very
high
organic
load
is
investigated
together
different
electrode
materials
(Fe,
Al,
Zn),
current
densities
(0.003,
0.009
0.018
A/cm2),
contact
times
(10,
20
30
min).
The
results
positively
highlight
that
largest
should
be
used
ECZ,
as
it
leads
to
a
lower
increase
pH
temperature,
decrease
chemical
oxygen
demand
(COD)
turbidity,
consumption,
while
causing
more
damage
surface.
estimated
energy
costs
ranged
from
3.960
kW/m3–1313.657
kW/m3.
Taguchi
L9
orthogonal
configuration
showed
highest
COD
turbidity
under
conditions
µm
particles.
powder
X-ray
diffractometer
(PXRD)
analysis
interplanar
spacing
decreases
when
smaller
medium
sizes
are
used,
effect
was
observed
larger
size.
SEM-EDS
oxygen,
silicon,
aluminium
predominant
elements
electrogenerated
sludge
coupled
zeolite.
ChemistrySelect,
Journal Year:
2024,
Volume and Issue:
9(14)
Published: April 11, 2024
Abstract
In
this
study,
the
magnesium
aluminum
layered
double
hydroxide
intercalated
with
sodium
dodecyl
sulfate
(Mg‐Al
S‐LDH)
was
synthesized
by
using
a
roasting–restoration
method
based
on
Mg‐Al
LDH
precursor,
and
their
effectiveness
in
removing
Cu
2+
from
aqueous
solutions
investigated.
Detailed
microstructural
characterization
of
these
adsorption
materials
involved
employing
X‐ray
diffraction
(XRD),
Fourier‐transform
infrared
spectroscopy
(FTIR),
scanning
electron
microscopy
(SEM),
transmission
(TEM),
nitrogen
adsorption/desorption
isotherms
(N
2
ad/desorption),
thermogravimetric‐differential
thermal
gravimetric
analysis
(TG‐DTG).
The
experimental
results
revealed
that
S‐LDH
displayed
plate‐like
structure
larger
surface
area
enhanced
ability.
Specifically,
maximum
capacity,
reaching
96.15
mg
⋅
g
−1
,
achieved
at
temperature
298
K,
accompanied
rapid
rate.
kinetics
adhered
to
pseudo‐second‐order
model,
suggesting
chemisorption
controlled
behavior.
Furthermore,
followed
Freundlich
signifying
multi‐site
mechanism
onto
layers
S‐LDH.
Thermodynamic
investigations
indicated
higher
temperatures
facilitated
dissolution
strengthened
affinity
S‐LDH,
positive
Δ
H
Θ
value
process
endothermic
temperature‐enhancing.
Ion
selectivity
experiments
demonstrated
Cd
Pb
ions
had
significant
impact
adsorption,
while
effects
Zn
Fe
were
less
pronounced.
primary
mechanisms
encompassed
precipitation,
complexation
layers,
isomorphous
substitution.
This
study
sheds
light
promising
potential
as
an
effective
adsorbent
for
heavy
metal
removal
provides
valuable
insights
into
its
performance
different
environmental
conditions.
Dalton Jurnal Pendidikan Kimia dan Ilmu Kimia,
Journal Year:
2024,
Volume and Issue:
7(2), P. 123 - 123
Published: Aug. 13, 2024
Karakteristik
alami
zeolit
alam
sangat
mempengaruhi
kemampuannya
untuk
mengadsorpsi
logam
aktif
di
dalam
kerangkanya.
Oleh
karena
itu,
penelitian
ini
bertujuan
mengetahui
konsentrasi
titanium
oksida
yang
sesuai
memodifikasi
Ende
menjadi
bahan
fotokatalis.
Berdasarkan
hasil
penelitian,
disimpulkan
bahwa
(TiO2)
adalah
sebesar
0,2
M
diimpregnasikan
ke
kerangka
Ende.
Zeolit
merupakan
jenis
mordenit
dan
tidak
mengalami
perubahan
struktur
setelah
dengan
kerangkanya,
tetapi
terjadi
pergesaran
sudut
2θ°
sebanyak
0,02
arah
lebih
besar.
Luas
permukaan
terbesar
berada
perlakuan
yaitu
23,365
m2/gram,
penampakan
morfologi
padat
rapi,
serta
peningkatan
rasio
Si/Al.
Perlakuan
larutan
terbaik
mampu
memberikan
16,40%
