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采用溶剂热法,用Sb2S3和Bi2S3粉体材料简单制备了A2S3(A=Sb,Bi)亚微米/纳米线.反应产物的形状和大小直接受反应温度、时间和溶剂的影响.使用乙二醇作溶剂得到的硫化锑棒要比使用乙二醇和乙二胺混合溶剂所制备的硫化锑线更粗且不均匀.在相同的反应条件下,使用乙二醇和乙二胺混合溶剂所制备的硫化铋亚微米线(平均直径150nm)比硫化锑的更细且更均匀.反应温度降低,得到硫化锑线所需要的反应时间更长.当反应温度和时间分别为200℃和24h时,能够得到平均直径在400nm左右的硫化锑亚微米线,但温度降到150℃,即便反应40h,也难制得全部的硫化锑线.讨论了从硫化锑粉体到硫化锑线的形成机理.
The A2S3 (A = Sb, Bi) submicron / nanowires were prepared by solvothermal method using Sb2S3 and Bi2S3 powders directly.The shape and size of the reaction product were directly affected by the reaction temperature, the time and the solvent.Using ethylene glycol The antimony sulfide rod obtained as a solvent was thicker and non-uniform than the antimony sulfide wire prepared using a mixed solvent of ethylene glycol and ethylenediamine. Under the same reaction conditions, vulcanization using a mixed solvent of ethylene glycol and ethylenediamine Bismuth submicron wires (150 nm in average diameter) are thinner and more uniform than antimony sulfide. The reaction temperature is lower and the reaction time required to obtain the antimony sulfide wire is longer. When the reaction temperature and time are respectively 200 ° C. and 24 h, The average diameter of about 400nm antimony sulfide submicron wire, but the temperature dropped to 150 ℃, even if the reaction 40h, it is difficult to prepare all of the antimony sulfide line.Analyzed from the antimony sulfide powder to antimony sulfide line formation mechanism.