Photoassisted production of O2-• and H2 in aqueous medium stimulated by polythiophene in ZSM-5 zeolite channels

被引:10
作者
Cík, G [1 ]
Sersen, F
Bumbálová, A
机构
[1] Slovak Univ Technol Bratislava, Dept Environm Sci, Bratislava 81237, Slovakia
[2] Comenius Univ, Fac Nat Sci, Inst Chem, Bratislava 84215, Slovakia
[3] Comenius Univ, Fac Pharm, Dept Pharmaceut Anal & Nucl Pharm, Bratislava 83232, Slovakia
关键词
ZSM-5; zeolites; polythiophenes; reactive oxygen species; water photoreduction; water photolysis; photochemistry;
D O I
10.1135/cccc19990149
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
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+ for Fe3+. By means of EPR spectroscopy, the temporarily generated O-1(2) in irradiated aqueous medium was proved. The formation of O-2(-.) was confirmed by the reduction of Fe3+-cytochrome c. Irradiation led to the water reduction to hydrogen.
引用
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页码:149 / 156
页数:8
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