• Fulltext


        Click here to view fulltext PDF

      Permanent link:

    • Keywords


      Photocatalysis; hydrothermal method; pH; concentration of photocatalyst; pollutant concentration.

    • Abstract


      In this study, we have synthesized MoS$_2$ nanostructures (NSs) through a simple and facile hydrothermal method and studied various factors affecting the degradation of organic azo dye methyl red (MR) under the illumination of visible light. The as-synthesized photo-catalyst has been characterized by powder X-ray diffraction, Raman spectroscopy and transmission electron microscopy to confirm its structure and surface morphology. The results reveal that the prepared MoS$_2$ NSs have 2H crystal phase. The peak frequency difference of ${\sim}$25 cm$^{-1}$ exhibits preparation of 5–6 layers of MoS$_2$ NSs. Ultraviolet–visible spectroscopy has been utilized to study the change in percentage degradation of the dye with variation in dosages of photocatalyst, dye concentration and variation in pH of the dye. MoS$_2$ NSs show the best adsorption of 80.35% at low pH of 4.24 with 14 mg of catalyst dosage and 50 ppm of dye concentration in 6 h of irradiation time.

    • Author Affiliations



      1. Department of Physics, School of Basic and Applied Sciences, Maharaja Agrasen University, Solan 174103, India
      2. Department of Chemistry, DAV College, Chandigarh 160011, India
      3. Department of Physics, Hindu College, New Delhi 110007, 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

© 2022-2023 Indian Academy of Sciences, Bengaluru.