Comparative study of chitin and chitosan beads for the adsorption of hazardous anionic azo dye Congo Red from wastewater

  title={Comparative study of chitin and chitosan beads for the adsorption of hazardous anionic azo dye Congo Red from wastewater},
  author={Nirav P. Raval and Prapti U. Shah and Divya G. Ladha and Poonam M. Wadhwani and Nisha K. Shah},
  journal={Desalination and Water Treatment},
AbstractChitin (CH) and chitosan (CTS) beads used and compared for the adsorption of Congo Red (CR), an anionic azo dye, are reported in the present work. Initially, the adsorbents were prepared and characterized by scanning electron microscopy (SEM) and Fourier transform infrared (FT-IR) analysis. SEM images showed the heterogeneous and porous structure of the beads and FT-IR results confirm the presence of –OH, –NH2, and–NHCOCH3 groups which are responsible for the adsorption of CR. Further… 

Nanoparticles Loaded Biopolymer as Effective Adsorbent for Adsorptive Removal of Malachite Green from Aqueous Solution

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Abstract The current research aimed to use waste to treat waste; to recycling of acrylic fibers waste combined with nano-chitosan for use as an adsorbent to remove Congo red (CR) from wastewater.

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It is evident from a literature survey of more than 290 published papers that nanoparticle and nanocomposite adsorbents have demonstrated outstanding adsorption capabilities for CR.

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Removal of Reactive Dye from Wastewater by Adsorption Using ECH Cross-Linked Chitosan Beads as Medium

  • M. ChiouW. KuoHsing-Ya Li
  • Engineering
    Journal of environmental science and health. Part A, Toxic/hazardous substances & environmental engineering
  • 2003
ECH cross-linked chitosan beads could be a feasible medium for the removal of reactive dye from wastewater and potentially an alternative for the decolorization of wastewater.