Photocatalytic degradation of aqueous organic solvents in the presence of hydroxyl radical scavengers
Tetrahydrofuran (THF) and 1,4-dioxane (DIOX) are two common solvents that are found in contaminated groundwater. Photocatalytic degradation of these two organic solvents in water was studied in the presence of carbonate and bicarbonate, which are hydroxyl radical scavengers. The reactions were perfo...
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| Format: | Article |
| Language: | English |
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Wiley
2001-01-01
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| Series: | International Journal of Photoenergy |
| Online Access: | http://dx.doi.org/10.1155/S1110662X01000241 |
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| author | Mehrab Mehrvar William A. Anderson Murray Moo-Young |
| author_facet | Mehrab Mehrvar William A. Anderson Murray Moo-Young |
| author_sort | Mehrab Mehrvar |
| collection | DOAJ |
| description | Tetrahydrofuran (THF) and 1,4-dioxane (DIOX) are two common solvents that are found in
contaminated groundwater. Photocatalytic degradation of these two organic solvents in water was studied
in the presence of carbonate and bicarbonate, which are hydroxyl radical scavengers. The reactions were
performed in an annular slurry photoreactor. It was found that bicarbonate and carbonate ions acted as
hydroxyl radical scavengers and slowed down the DIOX degradation rate but did not significantly affect
the THF degradation rate. The slight enhancement in the THF degradation rate in the presence of sodium
bicarbonate may be due to the increase in pH. In addition, it appears that bicarbonate and carbonate ions
were reduced to other organic species during the photocatalytic reaction. |
| format | Article |
| id | doaj-art-cc499d0639ec4e6c9c3077ba6ccf7997 |
| institution | Kabale University |
| issn | 1110-662X |
| language | English |
| publishDate | 2001-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | International Journal of Photoenergy |
| spelling | doaj-art-cc499d0639ec4e6c9c3077ba6ccf79972025-02-03T05:59:18ZengWileyInternational Journal of Photoenergy1110-662X2001-01-013418719110.1155/S1110662X01000241Photocatalytic degradation of aqueous organic solvents in the presence of hydroxyl radical scavengersMehrab Mehrvar0William A. Anderson1Murray Moo-Young2Department of Chemistry, Biology and Chemical Engineering, Ryerson Polytechnic University, Ontario, Toronto M5B 2K3, CanadaDepartment of Chemical Engineering, University of Waterloo, Waterloo, Ontario, N2L 3G1, CanadaDepartment of Chemical Engineering, University of Waterloo, Waterloo, Ontario, N2L 3G1, CanadaTetrahydrofuran (THF) and 1,4-dioxane (DIOX) are two common solvents that are found in contaminated groundwater. Photocatalytic degradation of these two organic solvents in water was studied in the presence of carbonate and bicarbonate, which are hydroxyl radical scavengers. The reactions were performed in an annular slurry photoreactor. It was found that bicarbonate and carbonate ions acted as hydroxyl radical scavengers and slowed down the DIOX degradation rate but did not significantly affect the THF degradation rate. The slight enhancement in the THF degradation rate in the presence of sodium bicarbonate may be due to the increase in pH. In addition, it appears that bicarbonate and carbonate ions were reduced to other organic species during the photocatalytic reaction.http://dx.doi.org/10.1155/S1110662X01000241 |
| spellingShingle | Mehrab Mehrvar William A. Anderson Murray Moo-Young Photocatalytic degradation of aqueous organic solvents in the presence of hydroxyl radical scavengers International Journal of Photoenergy |
| title | Photocatalytic degradation of aqueous organic solvents in the presence of hydroxyl radical scavengers |
| title_full | Photocatalytic degradation of aqueous organic solvents in the presence of hydroxyl radical scavengers |
| title_fullStr | Photocatalytic degradation of aqueous organic solvents in the presence of hydroxyl radical scavengers |
| title_full_unstemmed | Photocatalytic degradation of aqueous organic solvents in the presence of hydroxyl radical scavengers |
| title_short | Photocatalytic degradation of aqueous organic solvents in the presence of hydroxyl radical scavengers |
| title_sort | photocatalytic degradation of aqueous organic solvents in the presence of hydroxyl radical scavengers |
| url | http://dx.doi.org/10.1155/S1110662X01000241 |
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