Magnetite (Fe3O4) is an iron oxide in nature known as black iron oxide and also able to be synthesized from ferric and ferrous ions. Magnetite can be used as a support for adsorbents, where the magnetic properties of magnetite will facilitate the approval of the adsorbent. In this study, the magnetite was obtained by synthesis of FeCl3.6H2O and FeSO4.7H2O. Furthermore, magnetite can improve silica-cetyl trimethyl ammonium bromide (CTAB) used as an adsorbent for phenol compounds. Magnetite synthesis was carried out through a co-precipitation method, while magnetite coating with silica and CTAB used a sol-gel method. The results obtained were characterized using Fourier transform infrared spectroscopy (FTIR) to determine the functional group. The phenol adsorption ability of each adsorbent was carried out in batches and the phenol concentration was determined by a UV-VIS spectrophotometer. The optimum phenol adsorption ability occurs when using an adsorbent of Magnetite@silica synthesized in CTAB 6 mM.

Topics
Sol-gel process, UV-visible spectrophotometer, Minerals, Fourier transform spectroscopy, Inorganic compounds, Precipitation method, Silicates
1.
C.I.
 
Nair
,
K.
 
Jayachandran
, and
S.
 
Shashidhar
,
Afr. J. Biotechnol.
 
7
(
25
) (
2008
).
Google Scholar
 
2.
D.
 
Swantomo
,
N.A.
 
Kundari
, and
S.L.
 
Pambudi
, “
Adsorpsi Fenol Dalam Limbah Dengan Zeolit Alam Terkalsinasi
” in
Seminar Nasional V SDM Teknologi Nuklir, Proceedings Seminar Nasional V SDM Teknologi Nuklir
, (
Yogyakarta
,
2009
).
Google Scholar
 
3.
S.S.
 
Gupta
, and
K.G.
 
Bhattacharyya
,
J. Colloid Interface Sci.
 
295
(
1
),
21
–
32
(
2006
)
https://doi.org/10.1016/j.jcis.2005.07.073
Google Scholar
Crossref
Search ADS
PubMed
 
4.
A.S.
 
Teja
, and
P.-Y.
 
Koh
,
Prog. Cryst. Growth & Charact.
 
55
(
1-2
),
22
–
45
, (
2009
).
https://doi.org/10.1016/j.pcrysgrow.2008.08.003
Google Scholar
Crossref
Search ADS
 
5.
A.
 
Del Campo
,
T.
 
Sen
,
J.-P.
 
Lellouche
, and
I.J.
 
Bruce
,
J. Magn. Magn. Mater.
 
293
(
1
),
33
–
40
(
2005
).
https://doi.org/10.1016/j.jmmm.2005.01.040
Google Scholar
Crossref
Search ADS
 
6.
J.
 
Li
,
R.
 
Hong
,
H.
 
Li
,
J.
 
Ding
,
Y.
 
Zheng
, and
D.
 
Wei
,
Mater. Chem. Phys.
 
113
(
1
),
140
–
144
(
2009
).
https://doi.org/10.1016/j.matchemphys.2008.07.054
Google Scholar
Crossref
Search ADS
 
7.
H.
,
Salehizadeh
,
E.
,
Hekmatian
,
M.
 
Sadeghi
, and
K.
,
Kennedy
,
J. Nanobiotechnology
 
10
(
1
),
3
(
2012
).
https://doi.org/10.1186/1477-3155-10-3
Google Scholar
Crossref
Search ADS
PubMed
 
8.
K.
 
Petcharoen
, and
A.
 
Sirivat
,
Mater. Sci. Eng., B
 
177
(
5
):
421
–
427
(
2012
).
https://doi.org/10.1016/j.mseb.2012.01.003
Google Scholar
Crossref
Search ADS
 
9.
Y.-H.
 
Deng
,
C.-C.
 
Wang
,
J.-H.
 
Hu
,
W.-L.
 
Yang
, and
S.-K.
 
Fu
,
Colloids Surf., A
 
262
(
1-3
),
87
–
93
(
2005
).
https://doi.org/10.1016/j.colsurfa.2005.04.009
Google Scholar
Crossref
Search ADS
 
10.
A.
,
Bandyopadhyay
,
M.
 
De Sarkar
, and
A.
,
Bhowmick
,
J. Mater. Sci.
 
40
(
19
),
5233
–
5241
(
2005
).
https://doi.org/10.1007/s10853-005-4417-y
Google Scholar
Crossref
Search ADS
 
11.
Y.-X.
,
Wang
,
J.
 
Sun
,
X.
 
Fan
, and
X.
 
Yu
,
Ceram. Int.
 
37
(
8
),
3431
–
3436
(
2011
).
https://doi.org/10.1016/j.ceramint.2011.04.134
Google Scholar
Crossref
Search ADS
 
12.
K.
 
Li
,
Z.
 
Zeng
,
J.
 
Xiong
,
L.
 
Yan
,
H.
 
Guo
,
S.
 
Liu
,
Y.
 
Dai
, and
T.
 
Chen
,
Colloids Surf. A.
,
465
,
113
–
123
(
2015
).
https://doi.org/10.1016/j.colsurfa.2014.10.044
Google Scholar
Crossref
Search ADS
 
13.
J.
 
Pratiwi
, “
Pengaruh Variasi Konsentrasi Ctab dan Proses Kalsinasi Pada Magnetit Silika Ctab Terhadap Kemampuan Adsorpsi Fenol
”,
Universitas Diponegoro
,
2017
.
Google Scholar
 
14.
L.
 
Wa
,
L.
 
Fengyun
,
Z.
 
Fanlu
,
C.
 
Mengjing
,
C.
 
Qiang
,
H.
 
Jue
,
Z.
 
Weijun
, and
M.
 
Mingwei
,
Appl. Surf. Sci.
 
353
,
1031
–
1036
(
2015
).
https://doi.org/10.1016/j.apsusc.2015.06.204
Google Scholar
Crossref
Search ADS
 
15.
N.
 
Habibi
,
Spectrochim. Acta, Part A
 
131
,
55
–
58
(
2014
).
https://doi.org/10.1016/j.saa.2014.04.039
Google Scholar
Crossref
Search ADS
 
16.
S.
 
Masturi
,
M.P.
,
Aji
,
E.
 
Sustini
,
A.
 
Khairurrijal
, and
A.
 
Mikrajuddin
,
Am. J. Environ. Sci.
 
8
(
2
),
79
–
94
(
2012
)
https://doi.org/10.3844/ajessp.2012.79.94
Google Scholar
Crossref
Search ADS
 
17.
D.
 
Levy
, and
M.
 
Zayat
,
The Sol-Gel Handbook: Synthesis, Characterization and Applications, 3
, (
John Wiley & Sons
,
New Jersey, United States
,
2015
).
Google Scholar
Crossref
Search ADS
 
18.
U.
 
Kalapathy
,
A.
 
Proctor
, and
J.
 
Shultz
,
Bioresour. Technol.
 
85
(
3
),
285
–
289
(
2002
).
https://doi.org/10.1016/S0960-8524(02)00116-5
Google Scholar
Crossref
Search ADS
PubMed
 
19.
H.
 
Qu
,
S.
 
Tong
,
K.
 
Song
,
H.
 
Ma
,
G.
 
Bao
,
S.
 
Pincus
,
W.
 
Zhou
, and
C.
 
O’Connor
,
Langmuir
 
29
(
33
),
10573
–
10578
(
2013
).
https://doi.org/10.1021/la4022867
Google Scholar
Crossref
Search ADS
PubMed
 
20.
X.
 
Zhao
,
Y.
 
Shi
,
T.
 
Wang
,
Y.
 
Cai
, and
G.
 
Jiang
,
J. Chromatogr. A.
 
1188
(
2
),
140
–
147
(
2008
).
https://doi.org/10.1016/j.chroma.2008.02.069
Google Scholar
Crossref
Search ADS
PubMed
 
This content is only available via PDF.
© 2020 Author(s).
2020
Author(s)
You do not currently have access to this content.