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环保型烯酰吗啉纳米农药的制备及其性能 被引量:4

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摘要 用十二烷基磺酸钠对纳米TiO2/Ag光催化剂表面进行了修饰,研究了改性前后催化剂对烯酰吗啉的吸附行为.以TiO2/Ag,SDS改性TiO2/Ag,TiO2和空白为光催化载体,农药烯酰吗啉为有效成分, 制备了4种模拟的水基性农药制剂,将其直接涂膜于玻璃片上,于太阳光下进行光降解实验.当制剂中烯酰吗啉含量为1.2%,太阳光降解5 d,烯酰吗啉降解率分别为71.5%,68.0%,45.5%和28.3%.用小白菜做作物残留毒性试验,用烯酰吗啉含量为10%的纳米制剂稀释后喷洒于作物上,在太阳光下降解8 d 后,其中农药分解率达97.3%,半衰期为2.80 d.纳米农药制剂具有较高的生物活性,在相同条件下其毒力是原药毒力的1.235倍,是乳油制剂毒力的1.245倍.
出处 《科学通报》 EI CAS CSCD 北大核心 2004年第23期2416-2421,共6页 Chinese Science Bulletin
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参考文献14

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