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首页> 外文期刊>Dalton transactions: An international journal of inorganic chemistry >Ionic liquid assisted synthesis and photocatalytic properties of α-Fe_2O_3 hollow microspheres
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Ionic liquid assisted synthesis and photocatalytic properties of α-Fe_2O_3 hollow microspheres

机译：离子液体辅助合成α-Fe_2O_3中空微球及其光催化性能

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摘要

α-Fe_2O_3 hollow microspheres have been successfully prepared in the presence of metal ion-containing reactable ionic liquid 1-octyl-3-methylimidazolium tetrachlorideferrate(iii) ([Omim]FeCl _4) under the solvothermal condition. The as-prepared samples were characterized by X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), scanning electron microscopy (SEM), transmission electron microscopy (TEM), energy-dispersive X-ray spectroscopy (EDS), FT-IR spectrum, and diffuse reflectance spectroscopy (DRS). The effect of concentration of ionic liquids on the morphology of α-Fe_2O_3 had been investigated in detail. It was found that [Omim]FeCl_4 acted not only as Fe source but also as solvent and template for the fabrication of α-Fe _2O_3 hollow microspheres. In addition, the electrochemical and photocatalytic properties of α-Fe_2O_3 were investigated. The α-Fe_2O_3 hollow microspheres exhibited high conductivity, high photocurrent, and high photocatalytic activity. The designed hollow microsphere showed potential applications in photocatalysis.
机译：在溶剂热条件下，在含金属离子的可反应离子液体1-辛基-3-甲基咪唑四氯化铁（iii）（[Omim] FeCl_4）的存在下，成功制备了α-Fe_2O_3中空微球。所制备的样品通过X射线衍射（XRD），X射线光电子能谱（XPS），扫描电子显微镜（SEM），透射电子显微镜（TEM），能量色散X射线光谱（EDS）， FT-IR光谱和漫反射光谱（DRS）。详细研究了离子液体浓度对α-Fe_2O_3形貌的影响。发现[Omim] FeCl_4不仅充当Fe的来源，而且还充当制造α-Fe_2O_3空心微球的溶剂和模板。另外，研究了α-Fe_2O_3的电化学和光催化性能。 α-Fe_2O_3空心微球具有高电导率，高光电流和高光催化活性。设计的空心微球在光催化中显示出潜在的应用。

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