Abstract
Photocatalytic materials are currently intensively studied because of their high potential in UV and solar-light water purification. The photocatalysis is based on charge carrier generation and mobility of electron/hole pairs. Usually, a large amount of photoexcited charge it is lost by recombination, there are necessary coupled materials, highly active photocatalysts, and a very good electron acceptor semiconductor – that means composite material. There are several catalysts reported in the literature. Among the metal oxides such as TiO2, ZnO, SnO2, and CeO2, CuO is extensively used in heterogeneous photocatalysis for degradation of organic compounds degradation. Its activity can be enhanced by several methods such as doping, surface modification, and shape tailoring. These triggered a large volume of publications, and studies demonstrated that enhancing the dominance of reactive facets can enhance oxidation/reduction processes or even tune the adsorption of pollutants. On the other hand, photocatalyst nanoparticles immobilized on fly ashes improved their ability to destroy the organic compounds in the contaminated water. The literature indicated that nanoparticles can be uniformly dispersed on the surface of fly ash particles. The composite catalysts can be fabricated by different methods (hydrothermal, physical blending, sol–gel method, etc.). The effects of synthesis methods, precursors, promoters, calcination temperature, photocatalyst dosage, initial concentration, and irradiation time on the photodegradation of pollutants will be presented; these information will shed light to select the best photocatalyst.
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Lidia, F., Maria, H. (2020). TiO2/Fly Ash Nanocomposite for Photodegradation of Organic Pollutant. In: Kharissova, O., Martínez, L., Kharisov, B. (eds) Handbook of Nanomaterials and Nanocomposites for Energy and Environmental Applications. Springer, Cham. https://doi.org/10.1007/978-3-030-11155-7_11-1
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DOI: https://doi.org/10.1007/978-3-030-11155-7_11-1
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Latest
/Fly Ash Nanocomposite for Photodegradation of Organic Pollutant- Published:
- 05 September 2020
DOI: https://doi.org/10.1007/978-3-030-11155-7_11-2
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/Fly Ash Nanocomposite for Photodegradation of Organic Pollutant- Published:
- 09 June 2020
DOI: https://doi.org/10.1007/978-3-030-11155-7_11-1