Formation of $I_2$ by a Photocatalytic Reaction of Rose Bengal
Analytical Science and Technology / Analytical Science and Technology, (P)1225-0163; (E)2288-8985
1996, v.9 no.1, pp.72-77
Yoon, Kil-Joong
Yoon,
K.
(1996). Formation of <TEX>$I_2$</TEX> by a Photocatalytic Reaction of Rose Bengal. , 9(1), 72-77.
Abstract
In the process of solar energy conversion into electrical energy using the photoelectrochemical cell containing the sensitizer, rose bengal and supersensitizer. $I^-$, the photocurrent is stabilized and durable. But the long time span of irradiation causes the decrease of photocurrent monotonically. Spectroscopic and electrochemical analyses of rose bengal solution containing $I^-$ revealed that the decrease of concentration of rose bengal was attributed to the reaction of rose bengal in the dark with $I_2$ formed as a result of the possible photocatalytic reaction of rose bengal with $I^-$.
- keywords
-
Rose bengal,
Supersensitizer,
Photoelectrochemical cell,
Photocurrent