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通过采用表面活性剂包裹法对纳米TiO2进行表面改性,使纳米TiO2表面形成一个亲脂性的外壳,从而实现与亲脂性农药的复合。并对复合制剂的光降解性作了初探。结果表明,纳米TiO2的加入能明显提高溴虫腈的光降解速率。
The nano-TiO2 was surface modified by the surfactant coating method to form a lipophilic shell on the surface of the nano-TiO2 so as to achieve the compound with the lipophilic pesticide. The photodegradability of the composite preparation was also investigated. The results showed that the addition of nano-TiO2 can significantly improve the photodegradation rate of chlorfenapyr.