• Specific surfaces and heat of adsorption of some indian clays by dye-adsorption technique

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    • Keywords


      Dye-adsorption; clay-dye system; heat of adsorption; specific surfaces of clays; BET plot of adsorption isotherm

    • Abstract


      Adsorption of basic dye methylene blue by some Indian clays has been studied. BET plotting of the adsorption isotherms was applied to determine the specific surfaces of clays and heat of adsorption. About 10–20% lower values of specific surfaces were obtained when compared with the most accurate gas-adsorption BET results and its probable reasons discussed. The calculated heat of adsorption values confirm the physical adsorption.

    • Author Affiliations


      S K Das1 M K Chatterjee1 2

      1. National Metallurgical Laboratory (CSIR), Jamshedpur - 831 007, India
      2. Department of Chemical Technology, University of Calcutta, Calcutta - 700 009, India
    • Dates

  • Bulletin of Materials Science | News

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      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

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