Study on Adsorption of Methylene Blue by the Montmorillonite/poly(γ-Glutamic Acid) Composite

Cai Ning Zhang; Xu Man Wang

doi:10.4028/www.scientific.net/AMR.554-556.333

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 554-556Study on Adsorption of Methylene Blue by the...

Study on Adsorption of Methylene Blue by the Montmorillonite/poly(γ-Glutamic Acid) Composite

Abstract:

The composite was prepared with montmorillonite (MMT) and poly(γ-glutamic acid) (γ-PGA). Applied the composite as the sorbent, methylene blue as the adsorbate, the influences of the initial concentrations of methylene blue, adsorption time and pH values of the solution on the adsorption capacity of methylene blue by the composite were studied. The experimental results showed that the adsorption capacity of methylene blue by MMT/γ-PGA composite both increased with the increasing of initial concentration of methylene blue and the prolonging of adsorption time, and then approached saturation respectively. The adsorption capacity of methylene blue by MMT/γ-PGA composite increased with the increasing of pH values of methylene blue solution. Meanwhile, the study of adsorption mechanism demonstrated that the adsorption of methylene blue by MMT/γ-PGA composite was Langmuir type, and the adsorption equation wasΓ=0.204c/(1+0.381C).

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Periodical:

Advanced Materials Research (Volumes 554-556)

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333-338

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https://doi.org/10.4028/www.scientific.net/AMR.554-556.333

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Online since:

July 2012

Authors:

Cai Ning Zhang, Xu Man Wang

Keywords:

Adsorption, Methylene Blue (MB), Montmorillonite, Poly(γ-Glutamic Acid)

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