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Photocatalytic performance of Co3O4/Na-Alginate nanocomposite for the dynamic removal of direct red 31 dye: Degradation and mechanical pathways

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  • Paper ID
    gnest_06199
  • Paper status
    Published
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DOI
https://doi.org/10.30955/gnj.06199
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Abstract

This study examines the use of Co3O4 nanocomposite as a photo-catalyst in aqueous solution for photocatalytic degradation of dyes under UV. It has been observed that substrate concentrations, catalyst, pH, oxidant present and temperature, effect on dye degradation. The characterization of synthesized Co3O4 NPs and Co3O4/Na-Alg NC was done by UV-Visible, SEM, XRD and FTIR. Co3O4 NPs and Co3O4/Na-Alg NC were found to be 23 nm and 10 nm in size. The synthesized Co3O4/NaAlg NC were employed to degrade Direct Red 31 dye by optimization of experimental conditions. The highest degradation (68.24%) was attained at optimal conditions. TOC and COD were evaluated to check proficiency of this process. It was found that percentage reduction in TOC and COD was 66.7% and 65.2%. The generation of non-toxic products was validated by Direct Red 31 dye degradation route. The study concluded that the synthesized nanocomposites could be chosen for dyes-containing wastewater remediation. Because it is economical and environmentally beneficial, the produced Co3O4/Na-Alg NC is strongly advised for dye degradation.

Keywords
Co-precipitation Co3O4/Na-Alginate nanocomposite characterization Direct Red 31 dye degradation Photocatalysis Kinetic and Mineralization study
Cite this article
Naz, S. et al. (2024) “Photocatalytic performance of Co3O4/Na-Alginate nanocomposite for the dynamic removal of direct red 31 dye: Degradation and mechanical pathways”, Global NEST Journal, 26(7). Available at: https://doi.org/10.30955/gnj.06199.
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  • gnest_06199_final.pdf