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The mechanism of the photochemical oxidation of water to oxygen with silver chloride colloids

✍ Scribed by K. Chandrasekaran; J.K. Thomas

Publisher: Elsevier Science
Year: 1983
Tongue: English
Weight: 343 KB
Volume: 97
Category: Article
ISSN: 0009-2614
DOI: 10.1016/0009-2614(83)80507-7

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✦ Synopsis

of silver chloride colloids in the presence of excess silver ions, leads to the decomposition of water. Hydroxyl radicals were found to be intermediates in the decomposition process. Irradiation leads to hydroxyl radicals, which recombine to give hydrogen peroxide, on the colloidal particle surface. Subsequent decomposition of Hz02 to @ve 02 is catalyzed by silver ions. Addition of alcohols such as methanol and isopropanol reduce the oxygen yield, as they react with OH radicals and reduce the H202 yield.

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