|
| PVP保护下纳米银颗粒的液相化学还原法制备及表征 |
| Synthesis and Characterization of Silver Nano-particles by Liquid Phase Chemical Deoxidization Method under the Protection of PVP |
| Received:March 17, 2014 |
| DOI： |
| 中文关键词: 纳米化学 纳米银 化学还原法 PVP 陈化时间 |
| 英文关键词: nanochemistry nano-particles chemical reduction method PVP aging time |
| 基金项目:天津工业大学青年教师基金项目(029986)。 |
|
| Hits: 4360 |
| Download times: 6019 |
| 中文摘要: |
| 以PVP为表面活性剂，甲酸铵为还原剂，采用液相还原法制备了纳米银颗粒。采用X射线衍射(XRD)、透射电子显微镜(TEM)和紫外-可见光吸收光谱(UV-Vis)对所制备样品进行表征。结果显示:当PVP与AgNO3的质量比为2.2:1，陈化时间24 h，得到立方块和六棱柱的银混合颗粒。 |
| 英文摘要: |
| Nano-silver particles were prepared by using polyvinyl pyrolidone as the dispersing agent and ammonium as the reducing agent. The resulting specimens were characterized by X-ray diffraction (XRD), transmission electron microscopy (TEM) and UV-Vis adsorption spectrum. The result revealed that a mixture of cube and hexagonal prisms of nano-silver particles was obtained when the mass ratio of PVP to AgNO3 was 2.2:1 and the aging time was 24 hours. |
|
View Full Text
View/Add Comment Download reader |
| Close |