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Published on: February 21, 2017
Cobalt sorption in silica-pillared clays
A Sampieri1, G Fetter, P Bosch
1Facultad de Ciencias Químicas, Benemérita Universidad Autónoma de Puebla, C.P. 72570 Puebla, PUE, Mexico.
Abstract:
Silicon pillared samples were prepared following conventional and microwave irradiation methods. The samples were characterized and tested in cobalt sorption. Ethylenediammine was added before cobalt addition to improve the amount of cobalt retained. The amount of cobalt introduced in the original clay in the presence of ethylenediammine was the highest. In calcined pillared clays the cobalt retention with ethylenediammine was lower (ca. 40%). In all cases the presence of ethylenediammine increased twice the amount of cobalt sorption measured for aqueous solutions.
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