通过阳极氧化制备二氧化钛纳米管阵列.然后用制成的纳米管阵列作阴极、Pt作阳极,分别以Zr(NOa)4、NH4Cl及Zr(NO3)4和NH4Cl的混合溶液为电解液,制备锆掺杂、氮掺杂及锆、氮共掺杂二氧化钛纳米管阵列.通过FESEM、UV-vis漫反射、XRD、XPS等手段对纳米管阵列进行表征.结果表明,制成的纳米管阵列管径约70 nm,管长约400 nm.共掺杂后的吸收带边有了明显的红移.在锆掺杂纳米管中锆含量是0.51%,氮掺杂纳米管中氮含量为1.92%,共掺杂中锆、氮含量分别是0.77%和1.29%(均为原子分数).N1s峰在单独掺氮纳米管中是一个峰,而在混合掺杂中是双峰,说明氮在单独掺杂和混合掺杂中的存在状态并不一致.通过降解罗丹明B水溶液对其光催化性能进行检测.结果显示,锆掺杂可以增强Ti02纳米管阵列在紫外光下的催化活性,氮掺杂提高了TiO2纳米管阵列在可见区的光催化活性,锆、氮共掺杂产生了协同作用,使TiO2纳米管阵列的催化活性在紫外和可见区都得到了明显的提高.
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