Photodegradation of Sulfadiazine in Aqueous Solution and the Affecting Factors
Knowledge about photochemical behavior of sulfonamides under UV light is limited. In this study, photodegradation of sulfadiazine in water by ultraviolet (UV) light was studied using a 300 W, 365 nm UV lamp. The degradation process followed well the first-order kinetics, with a half-life of 9.76 min...
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| Format: | Article |
| Language: | English |
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Wiley
2016-01-01
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| Series: | Journal of Chemistry |
| Online Access: | http://dx.doi.org/10.1155/2016/8358960 |
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| author | Xuesen Bian Jibing Zhang |
| author_facet | Xuesen Bian Jibing Zhang |
| author_sort | Xuesen Bian |
| collection | DOAJ |
| description | Knowledge about photochemical behavior of sulfonamides under UV light is limited. In this study, photodegradation of sulfadiazine in water by ultraviolet (UV) light was studied using a 300 W, 365 nm UV lamp. The degradation process followed well the first-order kinetics, with a half-life of 9.76 min in water with air saturation. The photodegradation was slower at acidic pH 4.52 than at pH 6.98 and pH 8.90. Addition of H2O2 and nitrate enhanced the photodegradation rate, while addition of ethanol, nitrite, sulfate, and bicarbonate depressed the reaction rate. This study suggested that sulfadiazine photodegradation under UV light is generally favored by the attack of hydroxyl radicals. |
| format | Article |
| id | doaj-art-80cf3f1c180041449e239816ccd118d4 |
| institution | Kabale University |
| issn | 2090-9063 2090-9071 |
| language | English |
| publishDate | 2016-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Journal of Chemistry |
| spelling | doaj-art-80cf3f1c180041449e239816ccd118d42025-02-03T01:22:16ZengWileyJournal of Chemistry2090-90632090-90712016-01-01201610.1155/2016/83589608358960Photodegradation of Sulfadiazine in Aqueous Solution and the Affecting FactorsXuesen Bian0Jibing Zhang1Nanjing Institute of Environmental Sciences, Ministry of Environmental Protection of the People’s Republic of China, 8 Jiangwangmiao Street, Nanjing 210042, ChinaNanjing Institute of Environmental Sciences, Ministry of Environmental Protection of the People’s Republic of China, 8 Jiangwangmiao Street, Nanjing 210042, ChinaKnowledge about photochemical behavior of sulfonamides under UV light is limited. In this study, photodegradation of sulfadiazine in water by ultraviolet (UV) light was studied using a 300 W, 365 nm UV lamp. The degradation process followed well the first-order kinetics, with a half-life of 9.76 min in water with air saturation. The photodegradation was slower at acidic pH 4.52 than at pH 6.98 and pH 8.90. Addition of H2O2 and nitrate enhanced the photodegradation rate, while addition of ethanol, nitrite, sulfate, and bicarbonate depressed the reaction rate. This study suggested that sulfadiazine photodegradation under UV light is generally favored by the attack of hydroxyl radicals.http://dx.doi.org/10.1155/2016/8358960 |
| spellingShingle | Xuesen Bian Jibing Zhang Photodegradation of Sulfadiazine in Aqueous Solution and the Affecting Factors Journal of Chemistry |
| title | Photodegradation of Sulfadiazine in Aqueous Solution and the Affecting Factors |
| title_full | Photodegradation of Sulfadiazine in Aqueous Solution and the Affecting Factors |
| title_fullStr | Photodegradation of Sulfadiazine in Aqueous Solution and the Affecting Factors |
| title_full_unstemmed | Photodegradation of Sulfadiazine in Aqueous Solution and the Affecting Factors |
| title_short | Photodegradation of Sulfadiazine in Aqueous Solution and the Affecting Factors |
| title_sort | photodegradation of sulfadiazine in aqueous solution and the affecting factors |
| url | http://dx.doi.org/10.1155/2016/8358960 |
| work_keys_str_mv | AT xuesenbian photodegradationofsulfadiazineinaqueoussolutionandtheaffectingfactors AT jibingzhang photodegradationofsulfadiazineinaqueoussolutionandtheaffectingfactors |