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- W2025198552 abstract "This work provides an experimental evidence of the photoinduced generation of radical species upon UV irradiation of aqueous suspensions of carbon materials with varied textural, structural and chemical composition. The use of a powerful spectroscopic tool as spin trapping electron spin resonance (ESR) has allowed to detect and identify these radicals (among which are hydroxyl, superoxide and other organic radicals), which are the basis of the so-called Advanced Oxidation Processes. Our results demonstrate the ability of carbon materials – including activated carbons – to interact with UV light, and also to generate highly reactive species capable of promoting the photooxidation of an aromatic pollutant. Moreover, for some of the carbons the concentration of radicals was higher than that detected for titania powders. Although the photogeneration of radicals upon irradiation is a well-known process for inorganic semiconductors such as titanium oxide or zinc oxide, our results demonstrate a similar behavior on carbon materials in the absence of semiconductor additives." @default.
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- W2025198552 date "2013-02-01" @default.
- W2025198552 modified "2023-10-11" @default.
- W2025198552 title "Light-induced generation of radicals on semiconductor-free carbon photocatalysts" @default.
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- W2025198552 doi "https://doi.org/10.1016/j.apcata.2012.12.033" @default.
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