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Comparative Study on the Photocatalytic Degradation of Paraquat Using Tungsten-Doped TiO2 Under UV and Sunlight

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Sustainable Engineering

Part of the book series: Lecture Notes in Civil Engineering ((LNCE,volume 30))

Abstract

Photocatalytic degradation of paraquat dichloride a poisonous dipyridilium herbicide present as a pollutant in surface water has been studied in a batch photoreactor using P25 TiO2 and tungsten (W)-doped TiO2. Effect of varying parameters such as substrate concentration, catalyst loading, pH of the solution, light conditions, type of catalyst, and amount of dopant has also been studied. It was observed that synthesized catalyst with 2.5 wt% W-doped TiO2 exhibited higher percentage degradation efficiency than bare TiO2 under optimum conditions of catalyst loading, pH, and substrate concentration under solar irradiation. W-TiO2 catalyst has been synthesized and characterized using UV–Vis DRS, XRD, SEM-EDS, and TEM techniques. Maximum degradation of 98% was observed for 25 ppm paraquat, at a pH of 6.5, catalyst loading of 1 g L−1, and 2.5 wt% W-doped TiO2 under sunlight.

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Authors and Affiliations

  1. Energy Research Centre, Panjab University, Chandigarh, 160014, India

    Manpreet Kaur

  2. School of Energy and Environment, Thapar Institute of Engineering and Technology, Patiala, India

    Anoop Verma

  3. University Institute of Engineering and Technology, Panjab University, Chandigarh, 160014, India

    Hema Setia

  4. Dr SSB University Institute of Chemical Engineering and Technology, Panjab University, Chandigarh, 160014, India

    Amrit Pal Toor

Authors
  1. Manpreet Kaur
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  2. Anoop Verma
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  3. Hema Setia
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  4. Amrit Pal Toor
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Corresponding author

Correspondence to Hema Setia .

Editor information

Editors and Affiliations

  1. Department of Civil Engineering, Dr. B. R. Ambedkar National Institute of Technology, Jalandhar, Punjab, India

    Arvind Kumar Agnihotri

  2. Department of Civil and Materials Engineering, University of Illinois at Chicago, Chicago, IL, USA

    Krishna Reddy

  3. Department of Chemical Engineering, Dr. B. R. Ambedkar National Institute of Technology, Jalandhar, Punjab, India

    Ajay Bansal

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Kaur, M., Verma, A., Setia, H., Toor, A.P. (2019). Comparative Study on the Photocatalytic Degradation of Paraquat Using Tungsten-Doped TiO2 Under UV and Sunlight. In: Agnihotri, A., Reddy, K., Bansal, A. (eds) Sustainable Engineering. Lecture Notes in Civil Engineering, vol 30. Springer, Singapore. https://doi.org/10.1007/978-981-13-6717-5_15

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  • DOI: https://doi.org/10.1007/978-981-13-6717-5_15

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  • Publisher Name: Springer, Singapore

  • Print ISBN: 978-981-13-6716-8

  • Online ISBN: 978-981-13-6717-5

  • eBook Packages: EngineeringEngineering (R0)

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