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Vol. 26 No. 12 (2014): Vol 26 Issue 12

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Adsorption of Heavy Metal Ions from Aqueous Solution by Tannin Based Hydrogel

https://doi.org/10.14233/ajchem.2014.16552
Zhiyuan Peng
College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, P.R. China; College of College of Chemistry and Chemical Engineering, Jishou University, Jishou 416000, P.R. China
Hong Zhong
College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, P.R. China

Corresponding Author(s) : Zhiyuan Peng

peng_zhiyuan@126.com

Asian Journal of Chemistry, Vol. 26 No. 12 (2014): Vol 26 Issue 12

Abstract

Hydrogel based on tannin prepared by the cross-linking reaction of tannin and the copolymer of allyl glycidyl ether with acrylamide was used as sorbent for Pb(II). The data of the adsorption demonstrated fast adsorption property of hydrogel for Pb(II). The ratio of metal ions adsorbed to initial metal ions was over 99 % when the concentration of Pb(II) ion was lower than 0.5 mmol/L. The adsorption isotherms of hydrogel for Pb(II) can be well fitted by the Langmuir equation, the maximum adsorption amount of hydrogels for Pb(II) from Langmuir model were 49.3 mg/g.

Keywords

Hydrogel Tannin Adsorption
Peng, Z., & Zhong, H. (2014). Adsorption of Heavy Metal Ions from Aqueous Solution by Tannin Based Hydrogel. Asian Journal of Chemistry, 26(12), 3605–3608. https://doi.org/10.14233/ajchem.2014.16552
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