Photopotential and photocurrent induced by an aqueous solution of aliphatic alcohols

✍ Scribed by Peter Markov; Malina Novkirishka; Khalid Aljanapy

• Publisher: Elsevier Science
• Year: 1996
• Tongue: English
• Weight: 402 KB
• Volume: 96
• Category: Article
• ISSN: 1010-6030
• DOI: 10.1016/1010-6030(96)04306-7

✦ Synopsis

This paper deals with the photogalvanic behaviour of aliphatic alcohols in aqueous solution. It is found that UV-illumination causes the ~ ppearance of photopotential and photocurrent. The maximal values of the electrode potential and energy of the photogalvanic cell depend ~: n the type of the alcohol used, its concentration, the temperature and the pH of the irradiated solution. An important characteristic of the l:,henomenon observed is its reversibility. After discharge of a photogalvanic cell by application of an external load in the circuit, a subsequent i :radiation repeatedly leads to the appearance of photoinduced electrode potential and photocurrent. A possible mechanism of the photogalvanic , ~ ffect is discussed.