作　　者： ; ; ; ;

机构地区： 扬州大学环境科学与工程学院

出　　处： 《武汉大学学报（理学版）》 2012年第1期11-15,共5页

摘　　要： 以氨水为氮源,采用阳极氧化法和湿化学法合成N掺杂TiO2纳米管阵列,并通过可见光光催化降解六氯苯(HCB)废水,评价其催化活性.同时,分析了煅烧温度、氮源、掺氮量、HCB浓度、HCB溶液pH值对N掺杂TiO2纳米管阵列光催化性能的影响.结果表明:在煅烧温度为450℃的条件下,以1.0mol/L氨水为N源合成的TiO2纳米管阵列光催化性能最佳,中性条件下降解效率最好.该催化剂循环使用6次仍具有良好的光催化性能. N-doped Titanium dioxide（TiO2） nanotube arrays were formed by electrochemical anodization and wet chemical method by using ammonia as N source.The visible light photocatalytic property of the catalysts was studied by the experiment of degradation of hexachlorobenzen（HCB） wastewater.The photocatalytic factors as the species of nitrogen,the amount of nitrogen,calcination temperature,pH of the solution and the concentration of HCB were discussed,and the stability of N-doped TiO2 was also investigated.The results show that the photocatalytic properties is the best when 1.0 mol/L ammonia solution was used as N source under the condition of 450 ℃ calcinations temperature on the neutral condition.N-doped TiO2 catalysts show good photocatalytic properties after 6 cycles.

关 键 词： 可见光 六氯苯 氮掺杂 纳米管阵列

领　　域： [环境科学与工程] [环境科学与工程]