Heterogeneous photocatalysis is a recent discipline particularly well adapted to environmental problems since it operates at room temperature by replacing catalyst’s thermo-activation by photo-activation (or replacing phonons by photons). In fine chemistry, high initial selectivities (100%) are obtained in dry organic media in selective mild oxidation of gaseous or liquid hydrocarbons. Similarly, 100% selectivities were obtained in sulfur-involving photocatalytic reactions, noted as “thio-photocatalysis”. Environmental photocatalysis is active in water and air decontamination and can advantageously use the UV-A solar spectrum for outside applications.
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Herrmann et al. (2010) studied this question.
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