The Effect of Mineral Ions Present in Tap Water on Photodegradation of Organic Pollutants: Future Perspectives
2023
Shujaat Ahmad | Mazen Almehmadi | Hammad Tariq Janjuhah | George Kontakiotis | Osama Abdulaziz | Khalid Saeed | Hanif Ahmad | Mamdouh Allahyani | Abdulelah Aljuaid | Ahad Amer Alsaiari | Juma Muhammad | Idrees Khan
Photodegradation is the chemical conversion of large, toxic, and complex molecules into non-toxic, simpler, and lower molecular weight species due to light exposure. Heterogeneous photocatalysis has sufficient potential to degrade toxic organic pollutants present in wastewater. As industries discharge their effluents containing organic pollutants into natural water bodies, which penetrate into the subsurface through connected pores it is necessary to study this process in natural or tap water. Tap water (TW) is mainly obtained from underground wells having inorganic salts in a minute quantity with a conductivity of 500 μS/cm. TW contains inorganic anions, which affect the photocatalytic activity and photocatalysis process. The aim of this review is to evaluate the effect of TW on the photo-degradation of organic pollutants such as dyes, pharmaceutical products, pesticides, etc., with the support of the literature. The TW had a diverse effect on the photodegradation of organic pollutants; either it may enhance or decrease the rate of pollutants’ photodegradation.
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