在聚乙烯吡咯烷酮(PVP)存在下,以无水Na2CO3为控制剂,利用微波辅助多元醇法快速加热还原硝酸银制备了球形Ag纳米颗粒,研究了Na2CO3的添加量对球形Ag纳米颗粒大小的影响.用扫描电镜(SEM)、透射电镜(TEM)、X射线光电子能谱(XPS)、X射线衍射(XRD)和紫外-可见吸收光谱(UV-Vis)对制备的银纳米颗粒的形貌、组分、粒径和相结构进行了表征.结果表明,制备的Ag纳米颗粒的平均粒径随着Na2CO3添加量的增大而逐渐减小.
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