• Cationic dye adsorption by phosphomolybdate nanoclusters immobilised on polyelectrolyte matrix

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      https://www.ias.ac.in/article/fulltext/jcsc/132/0107

    • Keywords

       

      Polyelectrolyte; phosphomolybdate nanoclusters; dye adsorption; Langmuir adsorption.

    • Abstract

       

      A polyelectrolyte complex (PEC) made up of poly(di-allyl di-methylammonium chloride) and poly(styrene sulphonate) polyelectrolytes has been synthesised and used for the immobilisation of phosphomolybdate (PMo), [PMo12O40]3- nanoclusters. The material is characterised by FTIR, powder XRD, SEM, TEM and UV-Visible DRS spectroscopy. It was found that the PMo clusters are intact in the hybrid and are present as nanoaggregates within the layers of PEC. The amount of PMo present in the hybrid is estimated from thermal measurements and the optical band gap energy of the material is found to be in the semiconductor region. The presence of negatively charged PMo clusters helped in almost complete adsorption of cationic dyes, methylene blue and rhodamine B. The PMo/PEC hybrid has shown to follow Langmuir adsorption isotherm in case of both the dye molecules.

    • Author Affiliations

       

      K SHAKEELA1 SRUTHI GURU2 G RANGA RAO2

      1. Department of Chemistry, B.S. Abdur Rahman Crescent Institute of Science and Technology, Vandalur, Chennai 600048, India
      2. Department of Chemistry, Indian Institute of Technology Madras, Chennai 600036, India
    • Dates

       
  • Journal of Chemical Sciences | News

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