Photoassisted Production of O2-• and H2 in Aqueous Medium Stimulated by Polythiophene in ZSM-5 Zeolite Channels

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Title:Photoassisted Production of O2-• and H2 in Aqueous Medium Stimulated by Polythiophene in ZSM-5 Zeolite Channels
Creators:
Čík, Gabriel
Šeršeň, František
Bumbálová, Alena
Journal or Publication Title:
Collection of Czechoslovak Chemical Communications, 64, 1, pp. 149-156
Uncontrolled Keywords:Photochemistry, ZSM-5 zeolites, Water photoreduction, Reactive oxygen species, Water photolysis, Polythiophenes

Abstract

The formation of reactive oxygen species due to irradiation by a visible light of the polythiophene deposited in ZSM-5 zeolite channels in aqueous medium has been studied. Polymerization of thiophene was carried out in zeolite channels after the ion-exchange reaction of Na<sup>+</sup> for Fe<sup>3+</sup>. By means of EPR spectroscopy, the temporarily generated <sup>1</sup>O<sub>2</sub> in irradiated aqueous medium was proved. The formation of O<sub>2</sub><sup>-•</sup> was confirmed by the reduction of Fe<sup>3+</sup>-cytochrome <i>c</i>. Irradiation led to the water reduction to hydrogen. <p>

Title:Photoassisted Production of O2-• and H2 in Aqueous Medium Stimulated by Polythiophene in ZSM-5 Zeolite Channels
Creators:
Čík, Gabriel
Šeršeň, František
Bumbálová, Alena
Uncontrolled Keywords:Photochemistry, ZSM-5 zeolites, Water photoreduction, Reactive oxygen species, Water photolysis, Polythiophenes
Divisions:Life and Chemical Sciences > Institute of Organic Chemistry and Biochemistry > Collection of Czechoslovak Chemical Communications
Journal or Publication Title:Collection of Czechoslovak Chemical Communications
Volume:64
Number:1
Page Range:pp. 149-156
ISSN:0010-0765
E-ISSN:1212-6950
Publisher:Institute of Organic Chemistry and Biochemistry
Related URLs:
URLURL Type
http://dx.doi.org/10.1135/cccc19990149UNSPECIFIED
ID Code:1465
Item Type:Article
Deposited On:06 Feb 2009 17:09
Last Modified:06 Feb 2009 16:09

Citation

Čík, Gabriel; Šeršeň, František; Bumbálová, Alena (1999) Photoassisted Production of O2-• and H2 in Aqueous Medium Stimulated by Polythiophene in ZSM-5 Zeolite Channels. Collection of Czechoslovak Chemical Communications, 64 (1). pp. 149-156. ISSN 0010-0765

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