Photoassisted production of O-2(-center dot) and H-2 in aqueous medium stimulated by polythiophene in ZSM-5 zeolite channels

Authors
Cik, G Sersen, F Bumbalova, A
Citation
G. Cik et al., Photoassisted production of O-2(-center dot) and H-2 in aqueous medium stimulated by polythiophene in ZSM-5 zeolite channels, COLL CZECH, 64(1), 1999, pp. 149-156
Citations number
17
Categorie Soggetti
Chemistry
Journal title
COLLECTION OF CZECHOSLOVAK CHEMICAL COMMUNICATIONS
ISSN journal
00100765 → ACNP
Volume
64
Issue
1
Year of publication
1999
Pages
149 - 156
Database
ISI
SICI code
0010-0765(199901)64:1<149:PPOODA>2.0.ZU;2-G
Abstract
The formation of reactive oxygen species due to irradiation by a visible li ght of the polythiophene deposited in ZSM-5 zeolite channels in aqueous med ium has been studied. Polymerization of thiophene was carried out in zeolit e channels after the ion-exchange reaction of Na+ for Fe3+. By means of EPR spectroscopy, the temporarily generated O-1(2) in irradiated aqueous mediu m was proved. The formation of O-2(-.) was confirmed by the reduction of Fe 3+-cytochrome c. Irradiation led to the water reduction to hydrogen.