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    ARTICLE

    Alginate Composite Hydrogel Bead with Multilayer Flake Structure for Dye Adsorptions

    Xiaoyu Chen*, Jie Zhu

    Journal of Renewable Materials, Vol.7, No.10, pp. 983-996, 2019, DOI:10.32604/jrm.2019.07325

    Abstract With the rapid development of textile industry, a large amount of dye-contaminated effluents was produced and caused serious environmental problem. To remove the dye from effluents, adsorption materials have been applied because of their relatively cheap, high efficiency, and easy handling. In this study, a novel composite hydrogel bead with unique multilayer flake structure was fabricated by alginate, acrylamide and attapulgite for dye adsorption. Acrylamide was grafted polymerization onto alginate to obtain alginate-g-poly(acrylamide). Then alginate-g-poly(acrylamide) was cross-linked by Ca2+ ions in present of attapulgite to form composite hydrogel bead. Scanning electron microscopy (SEM) results show that… More >

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