A review of photochemical approaches for the treatment of a wide range of pesticides

High removal efficiency of dye pollutants by electron-Fenton process using a graphene based cathode

“…Over the past decade, AOPs have attracted increasing interest as promising powerful methods for efficiently removing dyes in aqueous medium [3][4][5]. AOPs are environmentally friendly chemical [6], photochemical [7], or electrochemical [8] methods sharing the common feature of the in-situ production of hydroxyl radicals ( Å OH) as their main oxidizing agent. One of the most popular chemical AOP is the Fenton method, where a mixture of Fe 2+ and H 2 O 2 , so-called ''Fenton's reagent'' is used to degrade organic compounds [9] (Eq.…”

Photodegradation of neonicotinoid insecticides in water by semiconductor oxides

“…These electron/hole pairs produce hydroxyl radicals, which are capable of initiating a series of chemical reactions that eventually mineralize pesticides to CO 2 , H 2 O and inorganic salts (Al Momami et al 2007;Antoniou et al 2008). Some excellent reviews have been published in the last decade about the fundaments of this technique and its application to degradation of pesticides in water (Devipriya and Yesodharan 2005;Malato et al 2009;Ahmed et al 2011;Reddy and Kim 2015). Although TiO 2 is the most widely used photocatalyst due to their unique blend of properties, ZnO is sometimes preferred over TiO 2 for degradation of organic pollutants due to its high efficiency (Sakthivel et al 2003;Daneshvar et al 2004;Rao et al 2009;Fenoll et al 2012bFenoll et al , 2013.…”

Trace organic contaminants in biosolids: Impact of conventional wastewater and sludge processing technologies and emerging alternatives

“…Direct or indirect photolysis degrades TrOCs (e.g. pesticides) in aqueous solutions [72], and UV disinfection performed after secondary or tertiary treatment has been observed to remove up to 20% of pharmaceuticals in the effluent [73]. However, overall photolysis has minimal impact on TrOC removal from sludge matrices [53,70].…”