Photocatalytic Degradation of Endocrine Disruptor Compounds in Water over Immobilized TiO۲ Photocatalysts

Recently, the fate of endocrine disruptors in environmentally relevant samples has attracted considerable attention. Semiconductor photocatalysis may offer an appealing methodology to treat such contaminants. In this respect, the simultaneous degradation of synthetic hormones employing UV irradiation and TiO۲ as the photocatalyst were investigated. Our interest was focused on designing a photocatalytic reactor and finding a way to immobilize a powder photocatalyst by water-glass. The nanofiber powder photocatalyst NnF Ceram TiO۲ was chosen as powder photocatalysts based on TiO۲. The material was characterized by N۲ adsorption/desorption, XRD, UV-Vis spectrometry, and TEM. The reaction kinetics of hormone decomposition corresponds to a first-order reaction rate. It was shown that progesterone and all types of estradiols were decomposed most effortlessly in the presence of NnF Ceram TiO۲ photocatalysts. On the other hand, the lowest conversion was reached for estrone and estriol. The photocatalysts based on TiO۲ immobilized by water-glass seems to be promising for photocatalytic water purification.

کلیدواژه ها:

Endocrine disruptors ، Water purification ، Photocatalysis ، NnF Ceram TiO۲ ، Electric energy per order