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以攀枝花钛精矿作为初始原料,采用湿化学法制备铁钛氧化物纳米粉体.利用X射线衍射(XRD)、场发射扫描电子显微镜(FESEM/EDS)、BET氮气吸附法、紫外-可见漫反射光谱(UV-Vis DRS)对合成的粉体进行表征,测试结果表明:合成了相组成为85.72 %质量分数 Fe2TiO5和14.28 %质量分数 TiO2(金红石)复合纳米晶粉体,平均晶粒尺寸为38 nm;近似球形的粉体颗粒及其聚集体,比表面积为16.80 m2/g;粉体在波长250~600 nm范围内均有较强的光吸收,由Fe2TiO5电子跃迁形成的起始吸收边为593 nm,相应的能带宽度为2.09 eV.

参考文献

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