Degrading Endocrine Disrupting Chemicals from Wastewater by Photocatalysis: A Review

Abstract

Widespread concerns continue to be raised about the impacts of exposure to chemical compounds with endocrine disrupting activities. To date, the percolation of endocrine disrupting chemical (EDC) effluent into the aquatic system remains an intricate challenge abroad the nations. With the innovation of advanced oxidation processes (AOPs), there has been a consistent growing interest in this research field. Hence, the aim of this paper is to focus one such method within the AOPs, namely, heterogeneous photocatalysis and how it is used on the abatement of EDCs, phthalates, bisphenol A and chlorophenols in particular, using TiO2-based catalysts. Degradation mechanisms, pathways, and intermediate products of various EDCs for TiO2photocatalysis are described in detail. The effect of key operational parameters on TiO2photocatalytic degradation of various EDCs is then specifically covered. Finally, the future prospects together with the challenges for the TiO2photocatalysis on EDCs degradation are summarized and discussed.

A review of solar and visible light active TiO2 photocatalysis for treating bacteria, cyanotoxins and contaminants of emerging concern

“…Endocrine disrupting compounds (EDCs) are chemicals that have xenobiotic or exogenous origins that can interfere and alter the function of the endocrine system and consequently cause adverse health effects in animals and humans [118][119][120][121][122][123][124][125]. Several substances have already been classified as or as having the potential to be EDCs (Fig.…”

Photocatalytic degradation of tetracycline using nanosized titanium dioxide in aqueous solution

“…The high amount of adsorbed TC leads to an inhibitive influence on the reaction of TC molecules with photogenerated holes or hydroxyl radicals, due to the lack of any direct contact between them. This could be due to increase of internal optical density, which resulting the solution becomes impervious to UV light (Sin et al 2011). Furthermore, increasing TC concentration leads to the absorption of light by the TC molecules, and thereby, the photons never reached the photocatalyst surface, and the photocatalytic removal efficiency decreased (Mohammadi et al 2012).…”

Removal of Steriod Hormones by Activated Carbon Adsorption—Kinetic and Thermodynamic Studies

“…Various methods have been assessed including granular activated carbon adsorption [6][7][8], and other novel absorbents have shown potentials [9][10][11][12]. The use of various advance chemical oxidation processes and membrane processes have also been investigated [13][14][15][16]. Use of activated carbon is favoured by many as it has been used extensively for treatment of portable water and there is no concern of by-product formation as with most advanced chemical oxidation processes [11].…”