Cu_2O亚微米空心球的低共熔溶剂辅助合成与表征  

Deep Eutectic Solvents-Assisted Synthesis and Characterization of Cu_2O Sub-micron Hollow Spheres

作　　者：曾建强[1] 王莉[1] 谭一良[1] 孙胜男[1] 武丽娜[1] 樊友军[1] 

机构地区：[1]药用资源化学与药物分子工程教育部重点实验室广西师范大学化学与药学学院,桂林541004

出　　处：《化学通报》2015年第1期63-67,共5页Chemistry

基　　金：国家自然科学基金项目(21263002);广西自然科学基金项目(2013GXNSFAA019024);广西教育厅科学技术研究项目(2013YB026);药用资源化学与药物分子工程教育部重点实验室课题(CMEMR2012-A3);广西研究生教育创新计划项目(2010106020703M67)资助

摘　　要：以低共熔溶剂(DESs)/H2O混合溶剂为介质成功制备了形貌均一、尺寸小且稳定性高的亚微米Cu2O空心球。采用扫描电镜、透射电镜和X射线衍射等方法表征了所制备样品的形貌、尺寸和结构。同时,研究了温度、p H、聚乙烯吡咯烷酮(PVP)用量等因素对样品尺寸、形貌及纯度的影响。结果表明,制备高纯Cu2O空心球的优化工艺条件为40℃、p H=11和PVP用量0.9g。混合溶剂中DESs的存在对提高所制备Cu2O样品的纯度、形态均一性和稳定性以及缩小颗粒的尺寸起到了重要作用。The uniform Cu2 O sub-micron hollow spheres with small size and high stability were successfully prepared in deep eutectic solvents( DESs) / H2 O mixed system. The morphology,size and structure of as-prepared samples were characterized by SEM, TEM and XRD. The effect of temperature, p H and amount of polyvinylpyrrolidone( PVP) on the size,morphology and purity of samples was investigated. The results showed that the optimum conditions for the preparation of highly pure Cu2 O hollow spheres were as follows: reaction temperature of 40℃,p H = 11 and PVP amount of 0. 9g. It was also found that the existence of DESs in the mixed system plays an important role in the formation of pure Cu2 O samples with homogeneous morphology,high stability and small size.

关 键 词：低共熔溶剂 CU2O 空心球 表征 

分 类 号：O614.121[理学—无机化学]