【摘要】 采用静电自组装的方法原位制备碳纳米管-石墨烯/氧化亚铜(CNTs-r GO/Cu2O)复合球。利用扫描电子显微镜(FESEM)、透射电子显微镜(TEM)、X射线衍射仪(XRD)等对样品进行形貌观察和物相分析,并分别讨论搅拌速度、微波功率、碳纳米管含量对复合球形貌的影响。结果表明:碳纳米管(CNTs)与复合球之间形成了一种特有的空间嵌入结构,氧化石墨烯(GO)的加入对于CNTs的均匀分散起到了很好的效果。具有穿插结构的碳纳米管/石墨烯在氧化亚铜中的嵌入能有效提高氧化亚铜的光催化效果,且当碳纳米管/氧化石墨烯含量为2%(质量分数)、微波功率为525 W时,得到的复合球粉末催化效果最好。更多还原

【Abstract】 The electrostatic self-assembly method was used to synthesize the carbon nanotube-graphene/cuprous oxide(CNTs-r GO/Cu2O) composite spheres. The morphology and phase composition were characterized by scanning electron microscopy(FESEM), transmission electron microscopy(TEM), X-ray diffractometry(XRD). The effects of stirring rate, microwave power and CNTs content on the composite spheres morphology were investigated. The photo catalytic property was studied. The results show that the CNTs-graphene hybrids are embedded in the composite particle in a specific network form. The synthesis conditions that have a significant effect on the photocatalytic performance of CNTs/r GO-Cu O, such as stirring speed, microwave power and CNTs-GO content were discussed. The size of these spheres is largely influenced by CNT-GO content. The addition of GO greatly enhance the dispersion performance of CNTs. The composite spheres could be an excellent candidate as powders for the fabrication of a bulk MWCNT-reinforced copper composite. And when the carbon nanotubes/graphene oxide content is 2% and microwave power is 525 W, the composite spheres prepared show the best catalytic effect.更多还原