Preparation and Characterization of Nanosized Barium-Strontium Titanate Immobilized on Aluminum Oxide and Its Application in Adsorption

Abstract:

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Nanometer barium-stroutium titanate immobilized on aluminum oxide (ABST) was prepared by the citric acid sol–gel method and characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM) and Fourier transform infrared spectrophotometry (FTIR). Its Pb2+ and Cd2+ adsorption properties from water were studied. Adsorption and elution were investigated under different conditions. The results showed that the nanometer barium-strontium titanate was immobilized on aluminum oxide firmly, becoming a composite adsorbent. The lead and cadmium ions were quantitatively retained at pH 5-8; their adsorption capacities of ABST were 70.28 mg•g-1 and 8.12 mg•g-1, respectively. The adsorbent of adsorped lead and cadmium ions were regenerated completely by elution with 1 mol•L-1 HNO3. The adsorbent had a promising prospect in analyticl chemistry and water treatment.

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Periodical:

Edited by:

Zhenyu Du and Bin Liu

Pages:

682-685

DOI:

10.4028/www.scientific.net/AMM.26-28.682

Citation:

D. Zhang and C. L. Zhang, "Preparation and Characterization of Nanosized Barium-Strontium Titanate Immobilized on Aluminum Oxide and Its Application in Adsorption", Applied Mechanics and Materials, Vols. 26-28, pp. 682-685, 2010

Online since:

June 2010

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$35.00

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