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Photocatalytic Degradation Of Fenitrothion In Water With TiO2 Under Solar Irradiation

Author

Listed:
  • Md. Ashraful Islam Molla

    (Department of Chemistry for Materials, Graduate School of Engineering, Mie University, Japan.)

  • Mai Furukawa

    (Department of Chemistry for Materials, Graduate School of Engineering, Mie University, Japan.)

  • Ikki Tateishi

    (Department of Chemistry for Materials, Graduate School of Engineering, Mie University, Japan.)

  • Hideyuki Katsumata

    (Department of Chemistry for Materials, Graduate School of Engineering, Mie University, Japan.)

  • Tohru Suzuki

    (Mie Global Environment Center for Education & Research, Mie University, Japan.)

  • Satoshi Kaneco

    (Mie Global Environment Center for Education & Research, Mie University, Japan.)

Abstract

Fenitrothion is widely used as herbicide with strong estrogenic activity, and it can lead to abnormalities of the thyroid gland and can give mutations. Hence, their degradation treatment is necessary for the environment. The photocatalytic remediation under sunlight irradiation is very effective for the degradation of fenitrothion. Fenitrothion is completely degraded during 10 min under the optimized conditions. The influence of various conditions, such as irradiation time, sunlight intensity, pH, temperature, TiO2 loading amount and initial substrate concentration, is investigated on the degradation of fenitrothion. The photocatalytic degradation mechanisms are speculated, from the experimental results with molecular orbital (MO) simulation for frontier electron density. The primary photocatalytic degradation reaction keeps a pseudo first order kinetic law. The activation energy (Ea) and half-life (t1/2) are 20.6 kJ/mol and 1.4 min, respectively. The fenitrothion wastewater photocatalytic treatment may become a good technique under solar irradiation.

Suggested Citation

  • Md. Ashraful Islam Molla & Mai Furukawa & Ikki Tateishi & Hideyuki Katsumata & Tohru Suzuki & Satoshi Kaneco, 2018. "Photocatalytic Degradation Of Fenitrothion In Water With TiO2 Under Solar Irradiation," Water Conservation & Management (WCM), Zibeline International Publishing, vol. 2(2), pages 1-5, January.
    • Handle: RePEc:zib:zbnwcm:v:2:y:2018:i:2:p:1-5
    DOI: 10.26480/wcm.02.2018.01.05
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    Cited by:

    1. Md. Moinul Islam & Abrar Zadeed Ahmed & Sumaya Farhana Kabir & Rafiqul Islam & Md. Ashraful Islam Molla, 2020. "Optimization Of Photodegradation Conditions Of Rhodamine B In Water With Dye-Sensitized Titanium Dioxid," Journal Clean WAS (JCleanWAS), Zibeline International Publishing, vol. 4(1), pages 28-31, April.

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