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Characterization and Optimization of Salicylic Acid Bentonite Clay Nanocomposite
Corresponding Author(s) : Ida Ayu Gede Widihati
Asian Journal of Chemistry,
Vol. 30 No. 11 (2018): Vol 30 Issue 11
Abstract
This work aimed to synthesize and characterize bentonite clay with the assist of Fe(III) ion as salicylic acid chelator. Variation on inter-calated concentration and contact time during intercalation process were performed to obtain the best bentonite-salicylic acid nanocomposite. The characterisation of the resulting nanocomposite was done by analyzing the surface area, pore volume, pore diameter and particle size using N2 gas adsorption analysis method (BET). The magnitude of loading capacity of bentonite to salicylic acid was measured by UV spectrophotometer and the composite topography was analyzed using SEM method. The results of BET method analysis showed that the resulting composite had a surface area of 107.8, 65.6, 109.2 m2/g, respectively and with a particle size of 55.65, 91.41 and 54.92 nm, respectively. The largest loading capacity is owned by composite produced with 24 h contact time with a capacity of 66.4720 mg/g.The results of topographic analysis with SEM showed that resulting composite has a layered structure with uniform particle shape and heterogeneous particle size.
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References
J. Wilson, D. Savage, A. Bond, S. Watson, R. Pusch and D. Bennett, Bentonite: A Review of Key Properties, Processes and Issues for Consideration in The UK Context, QRS-1378ZG-1, Version 1.1, Quintessa (2011).
M. Moosavi, Iran. J. Public Health, 46, 1176 (2017).
Y.L. Feng, C. Wang, N. Mao, M.-T. Wang, L. J. Yu and Z.Q. Wei, Adv. Mater., 6, 20 (2017); https://doi.org/10.11648/j.am.20170603.11.
M.L. Bello, A.M. Junior, B.A. Vieira, L.R.S. Dias, V.P. de Sousa, H.C. Castro, C.R. Rodrigues and L.M. Cabral, PLOS One, 10, e0121110 (2015); https://doi.org/10.1371/journal.pone.0121110.
J.P. Zheng, L. Luan, H.Y. Wang, L.F. Xi and K.D. Yao, J. Appl. Clay Sci., 36, 297 (2007); https://doi.org/10.1016/j.clay.2007.01.012.
I. Fejér, M. Kata, I. Erös, O. Berkesi and I. Dékány, Colloid Polym. Sci., 279, 1177 (2001); https://doi.org/10.1007/s003960100527.
M.I. Carretero and M. Pozo, Appl. Clay Sci., 47, 171 (2010); https://doi.org/10.1016/j.clay.2009.10.016.
C. Aguzzi, P. Cerezo, C. Viseras and C. Caramella, Appl. Clay Sci., 36, 22 (2007); https://doi.org/10.1016/j.clay.2006.06.015.
S. Kaufhold, R. Dohrmann, M. Klinkenberg, S. Siegesmund and K. Ufer, J. Colloid Interface Sci., 349, 275 (2010); https://doi.org/10.1016/j.jcis.2010.05.018.