Kinetic and Equilibrium of Biosorption of Methylene Blue by Sunflower Straw

Li Ping Chen; Si Qin Dalai

doi:10.4028/www.scientific.net/AMR.610-613.194

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 610-613Kinetic and Equilibrium of Biosorption of...

Kinetic and Equilibrium of Biosorption of Methylene Blue by Sunflower Straw

Abstract:

With sunflower straw as low-cost biosorbent, the biosorption of methylene blue (MB) from aqueous solution was studied by batch biosorption technique. The biosorption experiments were carried out under different conditions of solution pH, sunflower straw dose, and temperature. The results showed that biosorption of MB on to sunflower straw affected remarkably by the pH value, and the maximum biosorption amount was achieved at an optimum pH of 12.0; the equilibrium biosorption amount decreased as temperature was increasing, and the biosorption process might be depicted primly by Langmuir function; It was shown that the biosorption of methylene blue could be described by the pseudo-second-order equation.

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Periodical:

Advanced Materials Research (Volumes 610-613)

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194-197

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.610-613.194

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Online since:

December 2012

Authors:

Li Ping Chen, Si Qin Dalai

Keywords:

Biosorption, Kinetic, Methylene Blue (MB), Sunflower Straw, Thermodynamic

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