Photocatalytic oxidation of organic contaminants in water: An aid to environmental preservation
نویسندگان
چکیده
منابع مشابه
Photocatalytic Degradation of Organic Water Contaminants: Mechanisms Involving Hydroxyl Radical Attack
Hydroxyl and other oxygen-containing radicals are known to be present during the degradation of organic water pollutants in illuminated TiO2 photocatalyst slurries. It is proposed that the hydroxyl radical, OH., is the primary oxidant in the photocatalytic system. Four possible mechanisms are suggested, all based on OH. attack of the organic reactant. The cases of reaction on the surface, in th...
متن کاملDegradation of emerging contaminants in water by solar photocatalytic ozonation
The research in this Thesis has been mainly performed at the research group Trataguas, from the Departamento de Ingeniería Química y Química Física of the Universidad de Extremadura. It is a part of an extensive research program on the elimination of emerging contaminants (ECs) in water through the application of advanced oxidation processes (AOPs), being developed by the Trataguas group and fi...
متن کاملPhotocatalytic Degradation of Organic Pollutants in Water
A photocatalyst is defined as a substance which is activated by adsorbing a photon and is capable of accelerating a reaction without being consumed [1]. These substances are invaria‐ bly semiconductors. Semiconducting oxide photocatalysts have been increasingly focused in recent years due to their potential applications in solar energy conversion and environmen‐ tal purification. Semiconductor ...
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Trace quantities of potentially toxic organic compounds are frequently found in the environment. These compounds sometimes possess properties that may have teratogenic, mutagenic, and even carcinogenic effects on humans and animals. Some of the compounds, such as pesticides, have been intentionally released into the environment (1), while others have found their way into the environment by acci...
متن کاملSolar or UVA-Visible Photocatalytic Ozonation of Water Contaminants.
An incipient advanced oxidation process, solar photocatalytic ozonation (SPO), is reviewed in this paper with the aim of clarifying the importance of this process as a more sustainable water technology to remove priority or emerging contaminants from water. The synergism between ozonation and photocatalytic oxidation is well known to increase the oxidation rate of water contaminants, but this h...
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ژورنال
عنوان ژورنال: Pure and Applied Chemistry
سال: 1992
ISSN: 1365-3075,0033-4545
DOI: 10.1351/pac199264091285