Removal of Heavy Metal Ions from Water Using Nano-Barium Strontium Titanate Immobilized on the Silica Gel G as an Adsorbent

Abstract:

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A new method based on the sorption of the nano-barium strontium titanate immobilized on the silica gel G(GBST) to heavy metal ions, included Mn(Ⅱ), Cu2+, Ni2+,Co2+ and Ag+, in waste water. The effects of process parameters such as pH, contact time, regeneration conditions and the effects of common coexisting ions on the ions uptake were investigated. The results showed that the manganese, copper, nickel, cobalt and silver ions studied could be quantitatively retained at a pH value range of 7~9. The adsorption capacities of GBST for manganese, copper, nickel, cobalt and silver ions were found to be 8.2 mg/g, 18.3 mg/g, 4.2 mg/g, 2.2 mg/g and 3.1 mg/g, respectively. The heavy metal ions adsorbed on the sorbent could be eluated completely with diluted HNO3 solutions. The GBST can be used as an effective adsorbent for the treatment of wastewaters contaminated with manganese, copper, nickel, cobalt and silver ions.

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Periodical:

Edited by:

Dongye Sun, Wen-Pei Sung and Ran Chen

Pages:

3500-3503

DOI:

10.4028/www.scientific.net/AMM.71-78.3500

Citation:

D. Zhang "Removal of Heavy Metal Ions from Water Using Nano-Barium Strontium Titanate Immobilized on the Silica Gel G as an Adsorbent", Applied Mechanics and Materials, Vols. 71-78, pp. 3500-3503, 2011

Online since:

July 2011

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$35.00

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