Journal of the Chemical Society - Faraday Transactions p. 2041 - 2046 (1992)
Update date:2022-08-17
Topics:
Kawai, Tsuyoshi
Kuwabara, Takao
Yoshino, Katsumi
Photocatalytic fixation of carbon dioxide has been achieved by utilizing poly(3-alkylthiophene) as a new class of photocatalyst.Irradiation of visible light onto a poly(3-alkylthiophene) film immersed in ethanol solution containing butylphenol under a CO2 atmosphere resulted in formation of butylsalicyclic acid.The amount of butylsalicyclic acid formed increased with irradiation time.The mechanism of this novel photocatalytic CO2 fixation reaction was discussed by measuring the quenching effects of carbon dioxide and phenol on the photoluminescence of poly(3-alkylthiophene) and the electrochemical oxidation and reduction potentials of poly(3-alkylthiophene), CO2, phenol and phenolate anion.By using lithium phenolate as a starting substrate, the reaction rate was enhanced markedly.
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