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Title: The adsorption of methylene blue from aqueous solution by using waste potato peels; equilibrium and kinetic studies
Authors: Öktem, Yalçýn Aþkýn
Soylu, Selda G. Pozan
Aytan, Nevin
Keywords: Waste
Potato peels
Methylene blue
Issue Date: Dec-2012
Publisher: NISCAIR-CSIR, India
Abstract: This study examined the adsorption of methylene blue from aqueous solutions using waste material potato peels. After one hour, the maximum adsorption yield in methylene blue solution was determined as 33.87 mg/g at pH 8. Among the equilibrium isotherms with two or three parameters (Langmuir, Freundlich, Temkin, Sips, etc.) applied the acquired data, Langmuir isotherms had the highest correlation (0.99 %) and the maximum adsorption capacity of methylene blue was calculated as Qmax; 33.55 mg/g. In kinetic assessments, a pseudo-second order constant best defined the rate of adsorption. It is thought that the development of adsorption depends on the loads of various functional groups, which form adsorbent, hydroxyl and carboxylic groups in the potato peels, play a significant role in methylene blue adsorption.
Page(s): 817-821
CC License:  CC Attribution-Noncommercial-No Derivative Works 2.5 India
ISSN: 0975-1084 (Online); 0022-4456 (Print)
Source:JSIR Vol.71(12) [December 2012]

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