气固反应法制备Ag@Ag2S核壳纳米颗粒

发布时间：2019-05-17 21:48

【摘要】：采用两步法了合成Ag@Ag2S核壳纳米颗粒。首先以无水乙醇为还原剂,PVP(K-30)为分散剂,AgNO3为原料,采用溶剂热法合成出银纳米颗粒,随后在真空管式炉中对银纳米粉体进行硫化。紫外可见吸收光谱(UV-vis),X射线衍射(XRD),透射电子显微镜(TEM)的结果表明,以450℃加热硫粉,银粉所处位置为80℃,硫化时间为20~80min,成功制备出了Ag@Ag2S核壳结构纳米颗粒,颗粒粒径约为100±30nm。
[Abstract]:Ag@Ag2S core-shell nanoparticles were synthesized by two-step method. Firstly, silver nanoparticles were synthesized by solvothermal method with anhydrous ethanol as reductant, PVP (K 鈮，

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