Characterization of Durian Seed Starch/PVOH Composite Hydrogel as a Potential Adsorbent for Removal of Hazardous Dyes

W. Pimpa; C. Pimpa

doi:10.4028/www.scientific.net/AMR.931-932.286

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 931-932Characterization of Durian Seed Starch/PVOH...

Characterization of Durian Seed Starch/PVOH Composite Hydrogel as a Potential Adsorbent for Removal of Hazardous Dyes

Abstract:

The intention of this study was to prepare the environment friendly durian seed starch/polyvinyl alcohol (DSS/PVOH) composite hydrogels modified by chemical cross-linking with glutaraldehyde and to assess the adsorption potential of the DSS/PVOH composite hydrogels for the removal of the synthetic dyes from aqueous solution. The hydrogels were characterized by swelling behavior and scanning electron microscope (SEM). The effect of DSS content and initial dye solution pH on the adsorption capacity was studied conducting batch experiment system. The DSS/PVOH composite hydrogels consisting 3% DSS has optimum adsorption capacity of 3.411 mg/g (for methylene blue under the condition of pH 7) and 3.274 mg/g (for acid orange 8 under the condition of pH 2.5) at 24 h of contact time. The adsorptions were well fitted by the pseudo-second order kinetic model. It was indicated that the mechanism of removal predominant is effective for low dye concentrations, below 10 mg/l.

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Periodical:

Advanced Materials Research (Volumes 931-932)

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286-290

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.931-932.286

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Online since:

May 2014

Authors:

W. Pimpa*, C. Pimpa

Keywords:

Durian Seed Starch, Dye Removal, Hydrogel, Polyvinyl Alcohol

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