Synthesis and Catalytic Applicability of Pt–Pd ITO Grown Nano Catalyst: An Excellent Candidate for Reduction of Toxic Hexavalent Chromium

  • Ali Muhammad Mahar
  • Aamna BalouchEmail author
  • Farah Naz Talpur
  • Abdullah
  • Sirajuddin
  • Ameet Kumar
  • Pirah Panah
  • Muhammad Tariq Shah


In this study, we report the synthesis of indium tin oxide (ITO) decorated Pt–Pd nanoparticle by a simple and facile liquid phase deposition protocol and their application as a heterogeneous catalyst for the reduction of toxic hexavalent chromium. Different characterization techniques were used to confirm the synthesized nanoparticles are honeycomb-like structure. The average size of nanoparticles was found to be 2–5 nm and uniformly distributed over ITO surface. During this study, the parameter was optimized such as the effect of different reducing agent and their concentration, effect of microwaves radiation and dose of nanoparticles. It was observed that the kinetic mechanism was best describes by the pseudo-first order. The synthesized Pt–Pd nanoparticles were successfully applied as an excellent heterogeneous catalyst for reduction of Cr(VI) to Cr(III) in water. The synthesized nanocatalyst was good in term of fast kinetic, high catalytic efficiency, excellent recyclability, and analytical applicability for fast and efficient reduction of toxic hexavalent chromium as compared to conventional methods of nanocatalysts.

Graphic Abstract

Schematic illustration of hexavalent chromium reduction


Pt–Pd bimetallic nanoparticles Indium tin oxide (ITO) Heterogeneous catalyst Chromium 



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Copyright information

© Springer Science+Business Media, LLC, part of Springer Nature 2019

Authors and Affiliations

  • Ali Muhammad Mahar
    • 1
  • Aamna Balouch
    • 1
    Email author
  • Farah Naz Talpur
    • 1
  • Abdullah
    • 1
  • Sirajuddin
    • 2
  • Ameet Kumar
    • 1
  • Pirah Panah
    • 1
  • Muhammad Tariq Shah
    • 1
  1. 1.National Centre of Excellence in Analytical ChemistryUniversity of SindhJamshoroPakistan
  2. 2.HEJ Research Institute of Chemistry, International Center for Chemical and Biological SciencesUniversity of KarachiKarachiPakistan

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