Lumpur Sidoarjo is one of geothermal fluid types which has a great potential as source of lithium. Adsorption method with Lithium Manganese Oxide (LiMn2O4) as an adsorbent has been chosen for lithium recovery process due to low production cost and environmental friendly. LiMn2O4 was synthesized by hydrothermal method at 200 °C for 24 hrs, 48 hrs, and 72 hrs. As prepared LiMn2O4 powder is treated by acid treatment with 0.5 M HCl solution for 24 hrs. XRD test result reveals that all of as-prepared samples are indexed as spinel structure of LiMn2O4 (JCPDS card no 35-0782) with no impurity peaks detected. SEM images show that LiMn2O4 has nanoparticles morphology with particle size around 25 nm. The highest adsorption efficiency of adsorbent is obtained by sample hydrothermal for 72 hrs with 42.76%.

1.
B. W.
Jaskula
,
Lithium
(
U.S. Geological Survey Mineral Commodity Summaries
,
2013
)
94
95
2.
P. A.
Bakane
,
Proceedings of The Thirty-Eighth Workshop on Geothermal Reservoir Engineering
(
California
,
2013
).
3.
W.
Takinawa
, “
Proceeding Symposium on Future Lusi,”
(
BPLS Sidoarjo
,
2011
)
4.
Q.
Feng
,
Y.
Miyai
,
H.
Kanoh
, and
K.
Ooi
,
Langmuir
8
,
1861
(
1992
).
5.
X.
Zhou
,
M.
Chen
,
H.
Bai
,
C.
Su
,
L.
Feng
, and
J.
Guo
,
Vacuum
99
,
49
55
(
2014
).
6.
M.
Michlaska
,
L.
Lipinska
,
M.
Mirkowska
,
M.
Aksienionek
,
R.
Diduszko
, and
M.
Wasiucionek
,
Solid State Ionics
188
,
160
164
(
2011
).
7.
C. H.
Jiang
,
S. X.
Dou
,
H. K.
Liu
,
M.
Ichibara
,
H. S.
Zhou
,
J. Power Sources
172
,
410
415
(
2007
).
8.
K.
,
Byrappa
and
M.
Yoshimura
,
Noyes Publications
(
Jersey
,
USA
,
2001
).
9.
R.A.
Alberty
, “
Physical Chemistry Volume 7th
”. (
John Willey and Sons
,
1987
).
10.
K. S.
Chung
,
J. C.
Lee
,
E.J.
,
Kim
,
K. C.
Lee
,
Y. S.
Kim
and
K.
Ooi
,
Mater. Sci. Forum
449
,
277
280
(
2004
)
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