Photo-Reduction of CO2 by VIS Light on Polythiophene-ZSM-5 Zeolite Hybrid Photo-Catalyst
A new hybrid photo-catalyst based on ZSM-5 zeolite suitable for reduction of carbon dioxide was synthesized. The photo-catalyst was prepared by oxidative polymerization of thiophene with FeCl3 in the presence of ZSM-5 with participation of ultrasound. The synthesized photo-catalyst strongly absorbs...
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| Format: | Article |
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MDPI AG
2019-03-01
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| Series: | Molecules |
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| Online Access: | http://www.mdpi.com/1420-3049/24/5/992 |
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| author | Jana Kianička Gabriel Čík František Šeršeň Ivan Špánik Robert Sokolík Juraj Filo |
| author_facet | Jana Kianička Gabriel Čík František Šeršeň Ivan Špánik Robert Sokolík Juraj Filo |
| author_sort | Jana Kianička |
| collection | DOAJ |
| description | A new hybrid photo-catalyst based on ZSM-5 zeolite suitable for reduction of carbon dioxide was synthesized. The photo-catalyst was prepared by oxidative polymerization of thiophene with FeCl3 in the presence of ZSM-5 with participation of ultrasound. The synthesized photo-catalyst strongly absorbs light radiation up to approx. 650 nm, with the absorption edge in the NIR region. Reactive radicals were generated by VIS light irradiation in an aqueous suspension consisting of the photo-catalyst with CO2. Formic acid and acetic acid were generated as the main products of the CO2 reduction. EPR spin trapping technique was applied to identify the reactive radical intermediates. In this work, the mechanism of product formation is also discussed. |
| first_indexed | 2024-12-10T19:00:16Z |
| format | Article |
| id | doaj.art-2fe0618492474ee2baf80c14d5f0a0a2 |
| institution | Directory Open Access Journal |
| issn | 1420-3049 |
| language | English |
| last_indexed | 2024-12-10T19:00:16Z |
| publishDate | 2019-03-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Molecules |
| spelling | doaj.art-2fe0618492474ee2baf80c14d5f0a0a22022-12-22T01:37:02ZengMDPI AGMolecules1420-30492019-03-0124599210.3390/molecules24050992molecules24050992Photo-Reduction of CO2 by VIS Light on Polythiophene-ZSM-5 Zeolite Hybrid Photo-CatalystJana Kianička0Gabriel Čík1František Šeršeň2Ivan Špánik3Robert Sokolík4Juraj Filo5Department of Environmental Engineering, Faculty of Chemical and Food Technology, Slovak University of Technology in Bratislava, Radlinského 9, SK-812 37 Bratislava, SlovakiaDepartment of Environmental Engineering, Faculty of Chemical and Food Technology, Slovak University of Technology in Bratislava, Radlinského 9, SK-812 37 Bratislava, SlovakiaInstitute of Chemistry, Faculty of Natural Science, Comenius University in Bratislava, Ilkovičova 6, SK-842 15 Bratislava, SlovakiaDepartment of Analytical Chemistry, Faculty of Chemical and Food Technology, Slovak University of Technology in Bratislava, Radlinského 9, SK-812 37 Bratislava, SlovakiaInstitute of Chemistry, Faculty of Natural Science, Comenius University in Bratislava, Ilkovičova 6, SK-842 15 Bratislava, SlovakiaInstitute of Chemistry, Faculty of Natural Science, Comenius University in Bratislava, Ilkovičova 6, SK-842 15 Bratislava, SlovakiaA new hybrid photo-catalyst based on ZSM-5 zeolite suitable for reduction of carbon dioxide was synthesized. The photo-catalyst was prepared by oxidative polymerization of thiophene with FeCl3 in the presence of ZSM-5 with participation of ultrasound. The synthesized photo-catalyst strongly absorbs light radiation up to approx. 650 nm, with the absorption edge in the NIR region. Reactive radicals were generated by VIS light irradiation in an aqueous suspension consisting of the photo-catalyst with CO2. Formic acid and acetic acid were generated as the main products of the CO2 reduction. EPR spin trapping technique was applied to identify the reactive radical intermediates. In this work, the mechanism of product formation is also discussed.http://www.mdpi.com/1420-3049/24/5/992carbon dioxideVIS light photo-catalysispolythiopheneZSM-5spin-trapping |
| spellingShingle | Jana Kianička Gabriel Čík František Šeršeň Ivan Špánik Robert Sokolík Juraj Filo Photo-Reduction of CO2 by VIS Light on Polythiophene-ZSM-5 Zeolite Hybrid Photo-Catalyst Molecules carbon dioxide VIS light photo-catalysis polythiophene ZSM-5 spin-trapping |
| title | Photo-Reduction of CO2 by VIS Light on Polythiophene-ZSM-5 Zeolite Hybrid Photo-Catalyst |
| title_full | Photo-Reduction of CO2 by VIS Light on Polythiophene-ZSM-5 Zeolite Hybrid Photo-Catalyst |
| title_fullStr | Photo-Reduction of CO2 by VIS Light on Polythiophene-ZSM-5 Zeolite Hybrid Photo-Catalyst |
| title_full_unstemmed | Photo-Reduction of CO2 by VIS Light on Polythiophene-ZSM-5 Zeolite Hybrid Photo-Catalyst |
| title_short | Photo-Reduction of CO2 by VIS Light on Polythiophene-ZSM-5 Zeolite Hybrid Photo-Catalyst |
| title_sort | photo reduction of co2 by vis light on polythiophene zsm 5 zeolite hybrid photo catalyst |
| topic | carbon dioxide VIS light photo-catalysis polythiophene ZSM-5 spin-trapping |
| url | http://www.mdpi.com/1420-3049/24/5/992 |
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