Photocatalytic decomposition of humic acids in anoxic aqueous solutions producing hydrogen, oxygen and light hydrocarbons

Photocatalytic water splitting for hydrogen and oxygen production requires sacrificial electron donors, for example, organic compounds. Titanium dioxide catalysts doped with platinum, cobalt, tungsten, copper and iron were experimentally tested for the production of hydrogen, oxygen and low molecula...

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Veröffentlicht in:Environmental technology. - 1993. - 35(2014), 17-20 vom: 21. Sept., Seite 2237-43
1. Verfasser: Klauson, Deniss (VerfasserIn)
Weitere Verfasser: Budarnaja, Olga, Beltran, Ignacio Castellanos, Krichevskaya, Marina, Preis, Sergei
Format: Aufsatz
Sprache:English
Veröffentlicht: 2014
Zugriff auf das übergeordnete Werk:Environmental technology
Schlagworte:Journal Article Research Support, Non-U.S. Gov't Biofuels Humic Substances Hydrocarbons titanium dioxide 15FIX9V2JP Hydrogen 7YNJ3PO35Z Titanium mehr... D1JT611TNE Oxygen S88TT14065
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245 1 0 |a Photocatalytic decomposition of humic acids in anoxic aqueous solutions producing hydrogen, oxygen and light hydrocarbons 
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520 |a Photocatalytic water splitting for hydrogen and oxygen production requires sacrificial electron donors, for example, organic compounds. Titanium dioxide catalysts doped with platinum, cobalt, tungsten, copper and iron were experimentally tested for the production of hydrogen, oxygen and low molecular weight hydrocarbons from aqueous solutions of humic substances (HS). Platinum-doped catalyst showed the best results in hydrogen generation, also producing methane, ethene and ethane, whereas the best oxygen production was exhibited by P25, followed by copper--and cobalt-containing photocatalysts. Iron-containing photocatalyst produced carbon monoxide as a major product. HS undergoing anoxic photocatalytic degradation produce hydrogen with minor hydrocarbons, and/or oxygen. It appears that better hydrogen yield is achieved when direct HS splitting takes place, as opposed to HS acting as electron donors for water splitting 
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650 4 |a Research Support, Non-U.S. Gov't 
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650 7 |a titanium dioxide  |2 NLM 
650 7 |a 15FIX9V2JP  |2 NLM 
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700 1 |a Budarnaja, Olga  |e verfasserin  |4 aut 
700 1 |a Beltran, Ignacio Castellanos  |e verfasserin  |4 aut 
700 1 |a Krichevskaya, Marina  |e verfasserin  |4 aut 
700 1 |a Preis, Sergei  |e verfasserin  |4 aut 
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