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Vol. 29 No. 3 (2017): Vol 29 Issue 3

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Isotherm Study of Nickel(II) Adsorption from Aqueous Solution Using Thermally Treated Rice Husk

https://doi.org/10.14233/ajchem.2017.20264
A.T.A. Farhan
Department of Defence Science, Faculty of Science and Defence Technology, Universiti Pertahanan Nasional Malaysia, Kem Sungai Besi, 57000 Kuala Lumpur, Malaysia
K.K. Ong
Department of Chemistry and Biology, Centre for Defence Foundation Studies, Universiti Pertahanan Nasional Malaysia, Kem Sungai Besi, 57000 Kuala Lumpur, Malaysia
W.M.Z. Wan Yunus
Department of Defence Science, Faculty of Science and Defence Technology, Universiti Pertahanan Nasional Malaysia, Kem Sungai Besi, 57000 Kuala Lumpur, Malaysia
M.L. Jabit
Technical Services Centre, Malaysian Agricultural Research and Development Institute (MARDI) Headquarter, G.P.O. Box 12301, 50774 Kuala Lumpur, Malaysia
A. Fitrianto
Department of Mathematics, Faculty of Science, Universiti Putra Malaysia, 43400 UPM Serdang, Selangor, Malaysia
A.G.A. Hussin
Department of Defence Science, Faculty of Science and Defence Technology, Universiti Pertahanan Nasional Malaysia, Kem Sungai Besi, 57000 Kuala Lumpur, Malaysia
C.C. Teoh
Engineering Research Centre, MARDI Headquarter, G. P.O. Box 12301, 50774 Kuala Lumpur, Malaysia

Corresponding Author(s) : K.K. Ong

ongkhim@upnm.edu.my

Asian Journal of Chemistry, Vol. 29 No. 3 (2017): Vol 29 Issue 3

Abstract

The adsorption of heavy metals using low cost adsorbents is being widely investigated. Various modifications and treatments of adsorbents either chemically or physically have been applied to enhance the adsorption capacity. Thermal treatment is one of the approach of improving the porosity of the adsorbent. In the present study, the adsorption of nickel(II) ions using thermally treated rice husk is reported. The adsorption data were evaluated with Langmuir and Freundlich adsorption models. It was found that the equilibrium data fitted well with Langmuir isotherm as indicated with high coefficient of determination (R2 = 0.9947). The adsorption capacity of the thermally treated rice husk was found to be 1.68 mg/g. It can be seen that nickel(II) ions are considerably adsorbed on thermally treated rice husk and the method used in this study could be an economic approach for removal of nickel(II) ions from aqueous solutions.

Keywords

Nickel(II) ions Adsorption isotherm Thermally treated rice husk
Farhan, A., Ong, K., Wan Yunus, W., Jabit, M., Fitrianto, A., Hussin, A., & Teoh, C. (2016). Isotherm Study of Nickel(II) Adsorption from Aqueous Solution Using Thermally Treated Rice Husk. Asian Journal of Chemistry, 29(3), 589–591. https://doi.org/10.14233/ajchem.2017.20264
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