| W/O型微乳液中不同形貌PbS纳米粒子的制备及其形成机理的探讨 | |
| Study on Preparation and Formation Mechanisms of PbS Nanoparticles with Different Morphologies in W/O Microemulsion | |
| 摘要: 用聚乙二醇辛基苯基醚(OP)/异辛醇/环己烷/水溶液所形成的微乳液体系控制合成出了PbS纳米粒子，考察了微乳液中水与表面活性剂的物质的量的比(ω0)、反应物浓度及浓度比、陈化时间等条件对产物形貌的影响。采用透射电子显微镜(TEM)、X-射线衍射(XRD)分别对产物的结构、粒度和形貌进行了表征。结果表明，在微乳液体系中，控制不同的实验条件，可以成功地合成球形、梭形、针状和棒状的PbS纳米粒子，并且粒径分布集中，无团聚现象。论文还对不同形貌PbS纳米粒子的形成机理进行了探讨。 | |
| 关键词: 微乳液 硫化铅 纳米粒子 控制合成 | |
| 基金项目: | |
| Abstract: PbS nanoparticles with different morphologies, such as spherical, shuttle-shaped, needle-like, rod-like and wire-like, have been prepared in microemulsion solutions containing P-Octyl polyethylene glycol phenylether (OP), iso-octyl alcohol,cyclohexane and water. Structures and morphologies of PbS nanoparticles were characterized by transmission electron microscopy (TEM), X-ray powder diffraction (XRD). The influences of molar ratio of water to surfactant (ω0), the concentration of the reactant and the aging time on the morphologies and the sizes of the PbS nanoparticles were studied. The formation mechanisms for various morphologies of PbS nanoparticles in microemulsions were also discussed. | |
| Keywords: microemulsion PbS nanoparticle controled synthesis | |
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| 徐汪华,沈玉华,谢安建,庄永龙,黄腊春,陈彰旭.W/O型微乳液中不同形貌PbS纳米粒子的制备及其形成机理的探讨[J].无机化学学报,2006,22(2):258-262. | |
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