(1. 湖南大學(xué) 材料科學(xué)與工程學(xué)院 噴射沉積技術(shù)及應(yīng)用湖南省重點(diǎn)實(shí)驗(yàn)室,長(zhǎng)沙410082;
2. 湖南文理學(xué)院 機(jī)械工程學(xué)院,常德 415000;
3. 長(zhǎng)沙航空職業(yè)技術(shù)學(xué)院 機(jī)械制造工程系,長(zhǎng)沙 410124)
摘 要: 采用靜電自組裝的方法原位制備碳納米管-石墨烯/氧化亞銅(CNTs-rGO/Cu2O)復(fù)合球。利用掃描電子顯微鏡(FESEM)、透射電子顯微鏡(TEM)、X射線衍射儀(XRD)等對(duì)樣品進(jìn)行形貌觀察和物相分析,并分別討論攪拌速度、微波功率、碳納米管含量對(duì)復(fù)合球形貌的影響。結(jié)果表明:碳納米管(CNTs)與復(fù)合球之間形成了一種特有的空間嵌入結(jié)構(gòu),氧化石墨烯(GO)的加入對(duì)于CNTs的均勻分散起到了很好的效果。具有穿插結(jié)構(gòu)的碳納米管/石墨烯在氧化亞銅中的嵌入能有效提高氧化亞銅的光催化效果,且當(dāng)碳納米管/氧化石墨烯含量為2%(質(zhì)量分?jǐn)?shù))、微波功率為525 W時(shí),得到的復(fù)合球粉末催化效果最好。
關(guān)鍵字: 碳納米管;氧化石墨烯;靜電自組裝;光催化性能
(1. Hunan Province Key Laboratory for Spray Deposition Technology and Application,
College of Materials Science and Engineering, Hunan University, Changsha 410082, China;
2. College of Mechanical Engineering, Hunan University of Arts and Science, Changde 415000, China;
3. Department of Mechanical Manufacture Engineering, Changsha Aeronautical Vocational Technical College, Changsha 410124, China)
Abstract:The electrostatic self-assembly method was used to synthesize the carbon nanotube-graphene/cuprous oxide (CNTs-rGO/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/rGO-CuO, 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.
Key words: carbon nanotube; graphene oxide; electrostatic self-assembly; photocatalytic property


