Photocatalytic degradation of methylene blue dye in aqueous solution under UV irradiation using NdMnO3:rGO hybrid nanocomposites as a photocatalyst

Zinc Oxide/Iron Oxide Nanocomposites for Photodegradation and Adsorption of Pollutants in Water

“…7−9 In this context, many efforts are dedicated to the improvement of the remediation process. 10 Adsorption appears as a suitable and versatile option; however, given the diversity in the nature of pollutants, other mechanisms are strongly required. In this regard, photodegradation offers a cleaner and accessible alternative.…”

Microwave-assisted synthesis of ZnO structures for effective degradation of methylene blue dye under solar light illumination

“…While traditional methods for removing dyes and organic compounds encounter challenges such as secondary pollution and increased energy consumption, photocatalytic technology offers a promising solution with benefits like minimal secondary pollution, simplicity, and high efficiency. 8–10 Transition metals have been widely employed as photocatalysts by numerous researchers, exhibiting robust degradation capabilities against organic pollutants. Metal oxide semiconductors such as ZnO, 9 TiO 2 , 11 α-Fe 2 O 3 , 12 and SnO 2 13 have been widely employed for their ability to degrade organic contaminants under visible light illumination.…”

“…The generation of hydroxyl radicals (˙OH) is carried out by the reaction of the holes with water or hydroxyl anions, and the formation of superoxide radicals (O 2 ˙ − ) is from electrons reacting with dissolved oxygen. 9,10 These reactive species initiate a series of attacks on the targeted pollutant molecules, breaking them down step-by-step into smaller chemical compounds, eventually ending up with less harmful compounds. 9,10…”

“…9,10 These reactive species initiate a series of attacks on the targeted pollutant molecules, breaking them down step-by-step into smaller chemical compounds, eventually ending up with less harmful compounds. 9,10…”