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Mechanistic Understanding of Heterogeneous Photocatalysis for the Dye Degradation in Wastewater

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Fate and Transport of Subsurface Pollutants

Part of the book series: Microorganisms for Sustainability ((MICRO,volume 24))

Abstract

Water is one of the fundamental needs for the life on earth. However, the wastewater released from the industries consists of dyes and other organic molecules, which become the serious issue for the water pollution. Among all water remediation techniques, heterogeneous photocatalysis has gained scientific attention for the water purification in terms of degradation of dyes and other organic pollutants. Heterogeneous photocatalysis is a very robust, low cost method and can provide complete mineralization of the pollutants. In this context, this chapter deals with the basic principle and mechanism of heterogeneous photocatalysis; and the parameters affecting the degradation kinetics. Furthermore, the different functional photocatalyst material, their limitation and the modification in the structure of semiconductor catalyst to absorb visible light are discussed in this chapter.

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  1. Department of Chemistry, Indian Institute of Technology, Roorkee, Roorkee, Uttarakhand, India

    Sahil Thareja

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  1. Faculty of Environment, University of Waterloo, Waterloo, Canada

    Pankaj Kumar Gupta

  2. Department of Microbiology, Babasaheb Bhimrao Ambedkar University, Lucknow, India

    Ram Naresh Bharagava

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Thareja, S. (2021). Mechanistic Understanding of Heterogeneous Photocatalysis for the Dye Degradation in Wastewater. In: Gupta, P.K., Bharagava, R.N. (eds) Fate and Transport of Subsurface Pollutants. Microorganisms for Sustainability, vol 24. Springer, Singapore. https://doi.org/10.1007/978-981-15-6564-9_15

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