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Vol. 25 No. 1 (2013): Vol 25 Issue 1

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Adsorption of Toxic Metal Ions from Aqueous Solutions by Modified Cellulosic Waste Material

https://doi.org/10.14233/ajchem.2013.13011
Arvind Dixit
Department of Chemistry, V.S.S.D. College, Kanpur-208 002, India
Anuradha Tiwari
Department of Chemistry, V.S.S.D. College, Kanpur-208 002, India
Sunil Kumar Yadav
Department of Chemistry, Harcourt Butler Technological Institute, Kanpur-208 002, India
Bhakti Vijay Shukla
Extension Unit, Fragrance & Flavour Development Centre, Kanpur-208 012, India

Corresponding Author(s) : Arvind Dixit

dixit_arvind2@yahoo.co.in

Asian Journal of Chemistry, Vol. 25 No. 1 (2013): Vol 25 Issue 1

Abstract

The adsorption of Pb(II), Hg(II) and Ni(II) from aqueous solutions by cellulosic material was studied in a batch adsorption system. Factors influencing Pb(II), Hg(II) and Ni(II) adsorption such as metal ion concentration, pH, contact time and adsorbent dosage were investigated. The adsorption process was relatively fast and equilibrium was established with in 4 h. Maximum adsorption of metal ions and a comparison of the kinetic models on the overall adsorption rate showed that the adsorption system was best described by the pseudo second-order kinetics. The fast kinetics results and high adsorption capacity indicated that date pits fibre can be applied as the selective adsorbent for the treatment of heavy metal ions from aqueous solutions. The adsorption mechanism was suggested to be complexation.

Keywords

Adsorption Toxic metal ions Date stem Batch studies Kinetics isotherms
Dixit, A., Tiwari, A., Kumar Yadav, S., & Vijay Shukla, B. (2012). Adsorption of Toxic Metal Ions from Aqueous Solutions by Modified Cellulosic Waste Material. Asian Journal of Chemistry, 25(1), 309–312. https://doi.org/10.14233/ajchem.2013.13011
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