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CO3O4 doped over SBA 15: excellent adsorbent materials for the removal of methyleneblue dye pollutant

Suraja, P. V. and Yaakob, Zahira and Binitha, N. N. and Triwahyono, Sugeng and Silija, P. P. (2013) CO3O4 doped over SBA 15: excellent adsorbent materials for the removal of methyleneblue dye pollutant. Clean Technologies and Environmental Policy, 15 (6). pp. 967-975. ISSN 1618-954X

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Official URL: http://dx.doi.org/10.1007/s10098-012-0558-2

Abstract

Nanosized cobalt oxide particles are incorporated into SBA 15 mesoporous silica materials and are effectively used for the first time as adsorbent materials for aquatic dye pollutant removal. Cobalt is found to exist in its Co3O4 spinel structure as evident from FTIR and X-ray diffraction studies. The best weight ratio of metal loading to show excellent adsorption of methyleneblue is found to be 10 wt% Co over the support. There, Co3O4 spinel nanoparticles lie inside the pores of mesoporous silica. Further increase in the percentage of metal loading decreases the adsorption capacity which may be due to the agglomeration of nanoparticles over the silica support as evident from TEM photographs. Cobalt-doped systems of the present study, having good adsorption capacity of methyleneblue, are prepared via impregnation of cobalt nitrate over SBA 15 in aqueous medium. Here, we introduce a new SBA 15-based system for the fast removal of aquatic dye pollutants which is highly economical for industrial applications.

Item Type:Article
Uncontrolled Keywords:adsorption, aquatic pollution, cobalt oxide spinel, dye removal, waste water treatment
Subjects:G Geography. Anthropology. Recreation > GE Environmental Sciences
Divisions:Science
ID Code:50353
Deposited By: Siti Nor Hashidah Zakaria
Deposited On:02 Dec 2015 10:10
Last Modified:28 Jan 2019 12:30

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