二氧化钛复合涂膜的制备及其对氯氰菊酯农药的降解性能研究

Preparation of Composite Coating and Its Degradation Performance of Cypermethrin Pesticide

利用二氧化钛制备出壳聚糖-二氧化钛-氧化锌复合膜和二氧化钛塑料固定化膜材料,对其清除自由基作用进行研究,然后以光催化降解污染的氯氰菊酯农药,研究复合材料对氯氰菊酯的降解情况。结果表明:在4℃的条件下,TiO_(2)和ZnO混合材料对自由基的清除率为58.72%;用壳聚糖-二氧化钛-氧化锌复合膜处理白菜样品,氯氰菊酯的降解率为40.78%。

Titanium dioxide-zinc oxide-chitosan composite film and titanium dioxide immobilized material were prepared by titanium dioxide,and their free radical scavenging effect was studied.Then,the photocatalytic degradation of cypermethrin pesticide was studied by photocatalytic degradation of cypermethrin pesticide.The results showed that at 4℃,the scavenging rate of free radicals by TiO_(2)and ZnO mixed materials was 58.72%.The cabbage samples were treated with titanium dioxide-zinc oxide-chitosan composite film,and the degradation rate of cypermethrin was 40.78%by photocatalytic degradation.