不同光源下TiO_2—ZnO改性粉体光催化性能研究  

Study of Photocatalytic Performance of Modifying TiO_2—ZnO Powders in Different Lamp-house

作　　者：孙彤[1] 赵鑫[1] 

机构地区：[1]辽宁工学院材料与化学工程学院,辽宁锦州121001

出　　处：《辽宁工学院学报》2007年第1期36-38,共3页Journal of Liaoning Institute of Technology(Natural Science Edition)

摘　　要：采用水热合成法对自制的TiO2—ZnO复合粉体进行了Pb、F单元素改性和Pb、F双元素改性,以样品对水中罗丹明B的降解性能为评价指标,对样品的光催化性能进行了评价。结果表明,改性TiO2—ZnO复合粉体在紫外光源下的光催化性能优于在日光灯光源下;在紫外光源下,Pb改性使TiO2—ZnO复合粉体的光催化性能降低,在日光灯光源下,Pb改性使粉体的光催化性能提高,最佳掺杂量为0.4%;F改性使TiO2—ZnO复合粉体的光催化性能提高;Pb、F双元素改性粉体的光催化性能比Pb改性粉体好,而比F改性粉体差。The home-made TiO2--ZnO compounded powders were modified by plumbum, fluorine single and jointly by hydrotherrnal method. The photocatalytic performances of the samples were estimated by degrading Rhodamine B. The photocatalytic performances of the samples under ultraviolet radiation are better than that under sunlight. Under ultraviolet radiation, the performances of the plumbum modifying TiO2-ZnO compounded powders are decreased. Under sunlight, the performances of the plumbum modifying powders are increased. The optimum doping dosage is 0.4%. Modifying fluorine made the photocatalytic performances of the TiO2-ZnO compounded powders enhance. The photocatalytic performances of plumburn and fluorine jointly modifying powders is better than plumbum modifying powders＇ and worse than fluorine modifying powders＇.

关 键 词：TIO2 ZNO 紫外光 日光 铅 氟 水热合成法 

分 类 号：O643[理学—物理化学] X703[理学—化学]