摘要
以无水FeCl3和双硫腙为原料,通过溶剂热法得到分散均匀的棒状含铁前驱体,将该前驱体在400℃煅烧3 h后制成管状氧化铁。X射线衍射仪(XRD)和环境扫描电镜(ESEM)的研究结果表明:所得管状氧化铁为六方相(α-Fe2O3)的一维微米管,其平均直径约为2μm、长度约为10～20μm。傅立叶变换红外光谱仪(FT-IR)所测数据表明,该产物氧化铁表面吸附有部分SO42离子;而紫外可见光谱仪(UV-Vis)的数据分析发现,其紫外最大吸收λmax约为489 nm,带宽吸收约在566.2 nm处,间接禁带宽度和直接禁带宽度分别为1.97 eV和2.189 eV,与文献报道值接近。
The uniform rod-like precursor was synthesized successfully via a facile solvothermal method using anhydrous FeCl3 and dithizone as raw materials. Then, iron oxide tubes were obtained by calcination treatment of the rod-like precursors at 400 ℃ r 3 h. The results of X-ray diffraction （XRD） analysis and environmental scanning electron microscopy （ESEM） investigations show that the as-prepared products are pure Fe203 with hexagonal phase and tube-like morphology. The average diameter and length of the micro-tubes are about 2μm and 10-20μm, respectively. In additions, Fourier transform infrared （FT-IR） result demonstrates that some SO42- ions are adsorbed on the surfaces of the as-prepared iron oxide. Ultraviolet-Visible （UV-Vis） indicates that the maximum absorption wavelength is around 489 nm, the band gap absorption edge is around 566.2 nm, the indirect transition and direct transition band gaps of the as-prepared iron oxide are 1.97 eV and 2.189 eV, which are close to the literature results.
出处
《粉末冶金材料科学与工程》
EI
北大核心
2013年第1期113-118,共6页
Materials Science and Engineering of Powder Metallurgy
基金
陕西省科技厅科技计划资助项目(2011K07-13)
陕西省轻化工助剂重点实验室科技计划资助项目(11JS022)
咸阳市科研计划资助项目(2011K09-09)
陕西科技大学研究生创新基金资助项目
