P6 プロピザミド(農薬)の超音波併用光分解と過酸化水素の添加効果(環境的応用)
書誌事項
- タイトル別名
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- P6 Photodecomposition of propyzamide by the simultaneous irradiation of ultrasonic waves and the effects of H_2O_2(Enviromental Application)
抄録
Environmental problems arise from the pollution of ground water and soil by propyzamide 3,5-dichloro-N-(3-methyl-1-butyn-3-yl)benzamide, which is a popular herbicide. To decompose propyzamide aqueous solutions containing propyzamide and TiO_2 particles was irradiated by light. The photocatalytic decomposition was accelerated when the solution temperature and pH were high. The temperature dependence was due to the adsorption processes of propyzamide on the TiO_2 particles. The decomposition was further promoted by addition of H_2O_2 because of its effective electron-trapping and generated ・OH which was available to decompose propyzamide. Although no propyzamide was detected in the solution after the irradiation time of about 20 minutes, the decomposed intermediate compounds still remained. In order to mineralize completely propyzamide, simultaneous irradiation by light and ultrasonic waves was carried out. The hybrid effect of the irradiation by light and ultrasonic waves in conjunction with H_2O_2 was first confirmed to achieve the complete mineralization of propyzamide.
収録刊行物
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- ソノケミストリー討論会講演論文集
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ソノケミストリー討論会講演論文集 12 (0), 72-74, 2003
日本ソノケミストリー学会
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詳細情報 詳細情報について
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- CRID
- 1390282681028042880
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- NII論文ID
- 110009710224
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- ISSN
- 24241512
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- 本文言語コード
- ja
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- データソース種別
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- JaLC
- CiNii Articles
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- 抄録ライセンスフラグ
- 使用不可