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Adsorption of Cd(II) ions from aqueous solution using fruits peel as cost effective adsorbents

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Title Adsorption of Cd(II) ions from aqueous solution using fruits peel as cost effective adsorbents
 
Creator Jena, Swarnabala
 
Subject Adsorption
Fruits peel
Langmuir adsorption isotherm
Monolayer adsorption
Pseudo first order and second order kinetics
 
Description 328-335
The adsorption of cadmium ion onto different fruits peel i.e lemon, orange and banana has been investigated by batch
adsorption process with the variation in the pH, metal ion concentration, adsorbent dose and contact time. The results
showed maximum removal efficiency of 94.7%, 98.4%, and 83.6% for banana, lemon and orange respectively. Freundlich
and Langmuir adsorption isotherm models have been applied. Langmuir adsorption isotherm model is best fitted in the
adsorption showing monolayer adsorption of Cd(II) ion. Pseudo first order and second order kinetics were applied showing
higher r2 values for second order kinetics. Pseudo-first order rate constant (k1) for lemon, banana and orange are 0.1384,
0.1387, and 0.1451 whereas Pseudo-second order rate constant (k2) for lemon, banana and orange are 0.857, 0.808 and 0.738
respectively.
 
Date 2021-08-05T06:10:33Z
2021-08-05T06:10:33Z
2021-05
 
Identifier 0975-0991 (Online); 0971-457X (Print)
http://nopr.niscair.res.in/handle/123456789/57839
 
Publisher NIScPR-CSIR, India
 
Source IJCT Vol.28(3) [May 2021]