Use of Natural Kaolinite Clay as an Adsorbent to Remove PB(II), CD(II), and CU(II) from Aqueous Solution

Débora Martins Aragão; Maria de Lara P.M. Arguelho; Carolina Mangieri Oliveira Prado; José do Patrocinio Hora Alves

doi:10.4028/www.scientific.net/MSF.805.581

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Use of Natural Kaolinite Clay as an Adsorbent to Remove PB(II), CD(II), and CU(II) from Aqueous Solution

Abstract:

Natural kaolinite clay collected in the State of Sergipe (northeast Brazil) was used as an adsorbent for the ions Pb²⁺, Cd²⁺, and Cu²⁺ present in aqueous solution. Adsorption equilibrium was reached rapidly, enabling use of a contact time of 30 minutes, and maximum adsorption was achieved at pH 7.0. For all three metal ions, the adsorption data could be fitted using the Langmuir isotherm and the adsorption process obeyed a pseudo-second order kinetic model.

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Materials Science Forum (Volume 805)

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581-584

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.805.581

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Online since:

September 2014

Authors:

Débora Martins Aragão*, Maria de Lara P.M. Arguelho, Carolina Mangieri Oliveira Prado, José do Patrocinio Hora Alves

Keywords:

Adsorption, Cadmium, Copper, Kaolinite, Lead

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