【摘要】 在低温水热条件下,以AgNO3、Na2SeO3或单质硒为反应物,制备了金属硫族化合物Ag2Se纳米晶.用X射线粉末衍射(XRD)、透射电镜(TEM)、扫描电镜(SEM)分别对Ag2Se纳米晶的结构及形貌进行了表征分析.结果表明,所得样品为正交晶系的Ag2Se纳米晶,主要形貌为不规则的纳米颗粒;同时采用不同硒源及表面活性剂聚乙烯吡咯烷酮(PVP)可以获得不同形貌的纳米晶.更多还原

【Abstract】 Nanocrystalline Ag₂Se was synthesized via a convenient hydrothermal route at relatively low temperature,using AgNO₃,Na₂SeO₃ or selenium powder as reactant.Several techniques including XRD,TEM and SEM were used to characterize the products.The results showed that the prepared product was proved of orthorhombic Ag₂Se with morphology of irregular nanoparticles and if using different selenium sources and surfactant PVP,the morphologies of the Ag₂Se can be controlled.更多还原