• Synthesis, physicochemical and photocatalytic activities of nano ZnCo$_2$O$_4$ catalyst for photodegradation of various dyes under sunlight irradiation

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      https://www.ias.ac.in/article/fulltext/boms/044/0154

    • Keywords

       

      Transition metal; co-precipitation; ferromagnetic; photocatalytic activity.

    • Abstract

       

      The transition metal (Zn$^{2+}$)-doped Co$_3$O$_4$ nanoparticle was tailored through thermal decomposition of precursor synthesized by simple co-precipitation which is an experimentally and economically comfortable method. The precursor was characterized using EDS, FTIR and thermogravimetric analysis. Also, the nano-sized metal oxide synthesized from its precursor was investigated by powder X-ray diffraction, X-ray photoelectron spectroscopy, highresolution transmission electron microscopy, scanning electron microscopy. The specific surface area was scrutinized through Bruner–Emmet–Teller (BET) adsorption. The ferromagnetic property of the nanoparticle was detected using vibrating sample magnetometer. The photocatalytic degradation performance of nano ZnCo$_2$O$_4$ was evaluated using methyl orange (MO), rhodamine B (RhB) and Congo red (CR) dyes under sunlight. The nanoparticle demonstrated good photocatalytic activity towards azo dyes (MO and CR) rather than rhodamine (RhB)-based dye. The degradation of organic dyes was found to follow first-order kinetics.

    • Author Affiliations

       

      S HEMAMALINI R MANIMEKALAI1

      1. Department of Chemistry, Kongunadu Arts and Science College, Coimbatore 641 029, India
    • Dates

       
  • Bulletin of Materials Science | News

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