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|Title:||Adsorption of Pb(II) on polyacrylamide grafted tin(IV) oxide gel from aqueous solution|
|Authors:||Shubha, K P|
Anirudhan, T S
|Abstract:||Polyacrylamide grafted hydrous tin(IV)oxide gel has been studied as a sorbent for removal of Pb(II) from aqueous solutions. Effects of contact time, initial concentration, pH and temperature have been studied. The adsorption follows first order kinetics. The uptake is maximum around pH 5.5 and it has been explained on the basis of the surface complexation involving H+ exchange. The adsorption isotherms of Pb(II) were found to follow the Langmuir adsorption model. The adsorption rate constants and thermodynamical parameters were also presented to predict the nature of adsorption. The spent adsorbent can be regenerated and reused by acid treatment.|
|ISSN:||0975-0991 (Online); 0971-457X (Print)|
|Appears in Collections:||IJCT Vol.03(1) [January 1996]|
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