不同结构、形貌In_2S_3纳米材料的离子热合成及表征

以氯化铟和硫化钠为原料,以不同的离子液体为溶剂,采用离子热法合成了不同结构、形貌的硫化铟纳米材料。用XRD、SEM、TEM对产物结构和形貌进行了表征。结果表明:经150℃恒温24 h,在离子液体1-乙基-3-甲基咪唑溴盐中得到四方相结构六边形片状的硫化铟,而在1-丁基-3-甲基咪唑四氟硼酸盐中得到的是立方相结构花球状形貌的硫化铟。FTIR结果表明,离子液体在反应过程中起到重要作用。对片状硫化铟的紫外可见光谱及光致发光性能也进行了表征。

Ionothermal Synthesis and Characterization of In2S3 Nanomaterials with Different Frameworks and Morphologies

Indium sulfide nanomaterials of different frameworks and morphologies have been prepared ionothermally using indium chloride and sodium sulfide as raw materials and different ionic liquids as solvent.The morphology and framework of indium sulfide nanomaterials were characterized by XRD,SEM,TEM.The results show that: prepared at constant temperature of 150 ℃ for 24 h,the sample in the ionic liquid,1-Ethyl-3-methylimidazolium bromide was tetragonal β-In2S3 with hexagonal flake morphology,while in 1-Butyl-3-methylimidazolium tetrafluoroborate,the sample was cubic β-In2S3 with flower like morphology.The FTIR result indicated that ionic liquids have a strong act on the reaction process.Ultraviolet-visible optical Absorption spectrum and photoluminescence spectrum of the nanoflakes have also been characterized.