Removal of Herbicides from Water Using Heterogeneous Photocatalysis Case Study: MCPA Sodium Monohydrate
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Date
2019-08-22
Authors
Khalaf, Samer
Shoqeir, Jawad H.
Scrano, Laura
Karaman, Rafik
Bufo, Sabino A.
Kurniawan, Tonni Agustiono
Journal Title
Journal ISSN
Volume Title
Publisher
Scientific Research publishing
Abstract
In this study, the herbicide MCPA sodium salt monohydrate (sodium
(4-chloro-2 methylphenoxy) acetate has been studied as are presentative
compound used in the agricultural field. Accordingly, direct photolysis and
photocatalytic experiments under artificial irradiation simulating solar light
in laboratorial conditions were performed. Photocatalytic experiments were
performed using TiO2 dispersed powder and as an immobilized thin layer on
the surface of blue glasses. The obtained results of photolysis showed a poor
efficacy toward degradation of MCPA sodium monohydrate, with half-life
(t1/2) 6931.5 min. While, the addition of TiO2 dispersed powder to the photocatalytic
process enhances the process dramatically with (t1/2) equal to 36.5
min; furthermore, complete mineralization had been reached after approximately
4 hours, whereas the addition of TiO2 through immobilized system
led to enhance the degradation rate with 2236 min. as t1/2. In spite of this, using
TiO2 supported on glass substrates with more improvements could be a
promising alternative to conventional TiO2 suspension, and provides a clean
treatment method.
Description
Keywords
Anti-Inflammatory Drugs , Advanced Oxidation Process , Wastewater , Photocatalysis , TiO2 , Photo-Degradation , MCPA
Citation
Khalaf, S., Shoqeir, J.H., Scrano, L., Karaman, R., Bufo, S.A. and Kurniawan, T.A. (2019) Removal of Herbicides from Water Using Heterogeneous Photocatalysis Case Study: MCPA Sodium Monohydrate. Journal of Water Resource and Protection, 11, 1024-1035.