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Formation of a TiO2/CdS/Pd heterojunction and study of their photocatalytic degradation of organic dyes and toxic metal ion reduction

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Abstract

A novel triple-layered transparent conductive film TiO2/CdS/Pd heterostructure was deposited via galvanic deposition on glass substrate at room temperature. Photocatalysts with wide optical absorption regions and efficient charge carrier transport capacity are highly efficient for photocatalytic activity. Oxides of high band gap can be coupled with chalcogenide semiconductors for the efficient photocatalytic degradation of metal and dyes. So, in our work synthesis of TiO2/CdS heterostructure increases the absorption capacity of TiO2. Further, deposition of a noble metal like palladium over this heterostructure increases the charge separation, which in turn diminishes electron–hole pair recombination.

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Acknowledgements

One of the authors, Sk.T. Ahamed is thankful to IIEST, Shibpur for his Institute fellowship. The authors also acknowledge All India Council for Technical Education and U.G.C.-S.A.P. (India) for providing instrumental facilities to the Department of Chemistry, IIEST, Shibpur, India.

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Authors and Affiliations

  1. Department of Chemistry, Indian Institute of Engineering Science & Technology, Shibpur, Howrah, 711103, India

    Sk. Taheruddin Ahamed & Anup Mondal

  2. Department of Chemistry, Vivekananda College, Thakurpukur, Kolkata, 700063, India

    Sanjib Kumar Bhar

Authors
  1. Sk. Taheruddin Ahamed
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  2. Sanjib Kumar Bhar
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  3. Anup Mondal
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Correspondence to Anup Mondal.

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Ahamed, S.T., Bhar, S.K. & Mondal, A. Formation of a TiO2/CdS/Pd heterojunction and study of their photocatalytic degradation of organic dyes and toxic metal ion reduction. J Mater Sci: Mater Electron 30, 4400–4408 (2019). https://doi.org/10.1007/s10854-019-00729-y

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  • DOI: https://doi.org/10.1007/s10854-019-00729-y

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