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

Article Preview

Abstract:

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.

You might also be interested in these eBooks

Info:

Periodical:

Pages:

682-685

Citation:

Online since:

June 2010

Export:

Price:

Permissions CCC:

Permissions PLS:

Сopyright:

© 2010 Trans Tech Publications Ltd. All Rights Reserved

Share:

Citation: