三维CuO/CdO复合微纳米线体系的构建

Construction of 3-dimensional CuO/CdO Composite Nanowires System

以聚乙烯吡咯烷酮(PVP)为模板通过静电纺丝技术结合煅烧工艺构建出三维CuO/CdO复合微纳米线体系,可增大材料比表面积从而提高应用性能。通过SEM及直径统计分析发现,在相同条件下,与Cd2+相比, Cu2+更易吸附在PVP上。基于这一原因,PVP/Cu(CH3COO)2/Cd(CH3COO)2复合纳米纤维经过高温煅烧后,呈现三维多孔纳米线形貌,并且带有小颗粒。CuO与CdO相互结合,不仅优化产物组分,还利于增大比表面积,从而改善其应用性能。FT-IR、XRD结果证实,所得产物为CuO与CdO混合物。此外,XRD结果再次表明,在煅烧后的PVP/Cu(CH3COO)2/Cd(CH3COO)2复合纳米纤维中,Cu含量高于Cd。本研究从组成与形貌两方面为提高材料性能提供了一个新途径,所制备的具有三维结构的CuO/CdO复合微纳米线将有望应用于无酶葡萄糖传感器。

3-dimensional CuO/CdO composite nanowires system was constructed through electrospinning combined with subsequent calcination by using polyvinylpyrrolidone as templates.SEM and diameter distribution analysis proved that Cu^2+was more likely absorbed on PVP polymer than Cd^2+at the same circumstance.Based on the reason,the calcined PVP/Cu(CH3COO)2/Cd(CH3COO)2 composite nanofibers presented a 3-dimensional porous nanowire morphology,with some nanoparticles absorbed on it.The combination of CuO and CdO on one hand optimized the component,on the other hand increase the specific surface area.Thereby,the property can be improved.FT-IR and XRD results demonstrated that the structure of the final product was the compound of CuO and CdO.Moreover,XRD results indicated that in the calcined PVP/Cu(CH3COO)2/Cd(CH3COO)2 composite nanofibers,the amount of Cu was higher than that of Cd.The study provided a new way to improve material property from the perspective of component and morphology.The prepared 3-dimensional CuO/CdO composite nanowires were promising used in non-enzyme glucose sensor.