Taking iron nitrate as iron source, Fe-doped titania nanotube arrays with Fe3+ inclusion were synthesized for one-shot by using anodic oxidation treatment. The preliminary characterization of the cata lyst were conducted with test methods such as SEM, EDS, XRD and UV-VIS. The photocatalytic activity of this catalyst was measured by using photo-induced degradation of methyl orange (MO) within the visi ble light region. The result showed that highly fine, neat and orderly nanotubes array grew vertically in ti tanium basal surface, its length being approximately as 2 μm, diameter-50 nm. Inclusion of Fe3+ made the characteristic peak (101) its facer of the sharp over-mining phase shift to 20 small angle inhibiting the sharp over-mining phase shift to rutile phase and the red-shift of the UV-VIS absorption peaks. Its absorb ing intensity abated. The Fe3+ inclusion could effectively enhance the photocatalytic activity of TiO2 nano tubes array.%以硝酸铁为铁源,采用阳极氧化法一步合成Fe3+掺杂的TiO2纳米管阵列.用扫描电镜(SEM)、X-射线能谱仪(EDS)、X射线衍射(XRD)和紫外-可见漫反射吸收光谱(UV-VIS)等测试方法对催化剂进行表征,并通过可见光光催化降解甲基橙溶液,测定其光催化活性.结果表明:高度致密,规整有序的纳米管阵列垂直生长在钛基底表面,管长约2 μm,管径50nm左右;Fe3+的掺杂使锐铁矿相特征峰(101)晶面向2θ的小角度发生偏移,抑制锐钛矿相向金红石相的转交,紫外-可见漫反射吸收峰红移,吸收强度减弱; Fe3+的掺杂能有效提高TiO2纳米管阵列的光催化活性.
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