以三氯化铁(FeCl3·6H2O)和氨三乙酸(N(CH2COOH)3)为主要原料,在160℃反应12h得到了空心管状的白色前驱体,再经500℃煅烧2h得到了纳米结构氧化铁棒束.通过热重分析(TG)、光学显微镜、X射线衍射(XRD)、扫描电子显微镜(SEM)、红外光谱(FT-IR)、紫外-可见光谱(UV-Vis)对所得产物进行了表征.结果表明:所得白色前驱体经500℃煅烧后全部转化为六方相的氧化铁(α-Fe2O3),形貌为含微孔结构的棒束,直径约为2μm,其结构单元为含微孔结构的纳米棒,这些棒的直径为30～50 nm,长度约16μm；紫外数据表明所得氧化铁棒束的最大吸收波长为546nm,带宽吸收约在685 nm处,发生红移.
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