两种催化剂降解水中毒死蜱的研究  

STUDY ON DEGRADATION OF CHLORPYRIFOS IN WATER BY TWO CATALYSTS

作　　者：文少白[1,2] 李勤奋[1] 邓晓[1] 侯宪文[1] 

机构地区：[1]中国热带农业科学院环境与植物保护研究所,海南儋州571737 [2]海南大学环境与植物保护学院,海南儋州571737

出　　处：《水处理技术》2010年第11期25-27,共3页Technology of Water Treatment

基　　金：国家自然科学基金资助项目(40961024)

摘　　要：在实验室中通过紫外光照射模拟自然条件下水中毒死蜱的光化学降解过程,比较研究了二氧化钛和氯化亚锡2种光催化剂对水中毒死蜱的降解效率。结果表明,在0～40mg添加量下,160min内毒死蜱随着二氧化钛添加量的增加降解率逐渐增大,40mg添加量160min对毒死蜱的降解率达到95.18%;而随着氯化亚锡添加量的增加,毒死蜱的降解率却逐渐减小,在5mg添加量的降解效果最好,160min时达到78.21%。Through simulation photochemical degradation of chlorpyrifos in unartificial water area,the degradation efficiencies of chlorpyrifos in water by TiO2and SnCl2were studied in the laboratory using a UV light as irritation source. The results indicated that：Addition below 40 mg,the degradation efficiency of chlorpyrifos increased with addition of TiO2 within160 minutes; the degradation rate reached 95.18% under the addition of 40 mg. However,the degradation efficiency of chlorpyrifos decreased with the addition of SnCl2; the highest degradation rate showed under the addition of 5 mg ,which was 78.21% within 160 minutes.

关 键 词：毒死蜱 催化剂 二氧化钛 氯化亚锡 

分 类 号：TQ031.7[化学工程] X703.5[环境科学与工程—环境工程]