合成了ZnO/TiO2复合纳米材料,并将其运用于烟草农药残留及有害成分的光催化降解中。结果发现,所合成的ZnO/TiO2复合纳米材料平均粒径约为15nm,Zn、Ti摩尔比为1∶1,在紫外和可见光区范围均有较高吸收强度,光催化活性高。该材料对烟草中的农药残留及特有亚硝胺（TSNAs）的前体物亚硝酸盐均有明显的光催化降解效果,且降解率随处理时间的延长而升高。
Nanomaterial of ZnO/TiO2 compound was synthesised, and its effect on the photocatalytic degrada- tion of pesticide residues and hazardous chemicals in tobacco was discussed. The results showed that the average particle diameter of the nanomaterial was about 15nm, the molar ratio of Zn and Ti was 1 ： 1. With high ab- sorption intensity and photoeatalytic activity in the u｜traviolet and visible region, suhject nanomaterial has high activity in the photocatalytic degradation of organophosphorus pesticide residues and nitrite in tabacco. The lon- ger the dispose time is, the higher the degradation rate will be.
参考文献
| [1] | 张悠金;杨俊;李婉 等.纳米材料降低卷烟烟气粒相有害成分的研究[J].化学研究与应用,2002,13(06):709-711. |
| [2] | 吕功煊,聂聪,赵明月,刘建福,丁彦.应用含纳米贵金属催化材料降低卷烟烟气中CO技术研究[J].中国烟草学报,2003(03):18-27. |
| [3] | 何智慧,练文柳,罗嘉,蒋腊梅,陈亚.选择性降低卷烟烟气中苯并芘含量的研究[J].现代科学仪器,2006(01):76-77. |
| [4] | 周仕禄,王英,徐佳卉,徐杨,曹毅,朱建华,何新伟,张艳,王辉.用纳米孔材料去除卷烟烟气里的亚硝胺和多环芳烃[J].江苏化工,2004(03):29-31,40. |
| [5] | 唐小红,张云,张萍,尹光福,周大利,郑昌琼.纳米二氧化钛的光催化性能研究[J].功能材料,2004(02):236-238. |
| [6] | 陈卫国;朱锡海 .光催化降解有机污染物的机理初探[J].中山大学学报,1997,36(06):83-86. |
| [7] | 徐悦华,古国榜,李新军.光催化降解甲胺磷影响因素的研究[J].华南理工大学学报(自然科学版),2001(05):68-71. |
| [8] | 罗妮,王宁,张昭.多孔Ag/TiO2的制备及其光催化性研究[J].功能材料,2007(07):1143-1145,1148. |
| [9] | Gorischer H;Hellor A .The role of oxygen in photooxida- tion of organic molecules on semiconductor particles[J].Journal of Physical Chemistry,1991,95(13):5261-5267. |
| [10] | 张新荣,杨平,赵梦月.附载型复合光催化剂TiO2·Al2O3/beads降解有机磷农药[J].环境科学研究,2001(02):36-40. |
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