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    • Keywords


      Enzyme; vermiwash; nanoparticles; semiconductors; photocatalysis; dye degradation.

    • Abstract


      Employing enzymes as co-catalysts with semiconducting oxides is one of the cost-effective and nature-friendly ways for photocatalytic decomposition of toxic organic dye molecules. In the present study, enzymepowered zinc oxide nanomaterial was prepared using vermiwash derived from the earthworm (Endrilus eugeniae) culturing unit. Two sets of samples were prepared via a simple soft-chemical method by applying heat (i) during the stirring stage of synthesis and (ii) as post-synthesis heat treatment. The effect of this heat treatment on the photocatalytic efficiency of the synthesized nanoproduct has been studied. The study on the activity of enzymes present in the nanoproduct, structural studies through X-ray diffraction, scanning electron microscopy, transmission electron microscopy and photocatalytic degradation studies are fitly correlated among them to address the observed enhancement in the photocatalytic activity. The results provide strong evidence to support the potential use of vermiwash for synthesising nano-sized photocatalysts that can be used to treat toxic organic pollutants, such as methylene blue.

    • Author Affiliations



      1. PG & Research Department of Physics, A Veeriya Vandayar Memorial Sri Pushpam College (Affiliated to Bharathidasan University, Tiruchirappalli), Thanjavur 613 503, India
      2. PG & Research Department of Physics, Kunthavai Naachiyaar Goverment Arts College for Women (Affiliated to Bharathidasan University, Tiruchirappalli), Thanjavur 613 007, India
      3. PG & Research Department of Zoology and Biotechnology, A Veeriya Vandayar Memorial Sri Pushpam College (Affiliated to Bharathidasan University, Tiruchirappalli), Thanjavur 613 503, India
      4. Department of Nanotechnology, Noorul Islam centre for Higher Education, Kumaracoil 629 180, India
    • Dates

  • Bulletin of Materials Science | News

    • Dr Shanti Swarup Bhatnagar for Science and Technology

      Posted on October 12, 2020

      Prof. Subi Jacob George — Jawaharlal Nehru Centre for Advanced Scientific Research, Jakkur, Bengaluru
      Chemical Sciences 2020

      Prof. Surajit Dhara — School of Physics, University of Hyderabad, Hyderabad
      Physical Sciences 2020

    • Editorial Note on Continuous Article Publication

      Posted on July 25, 2019

      Click here for Editorial Note on CAP Mode

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