BACKGROUND Nanocomposites loaded with metal oxides, such as CuO and ZnO, have excellent optical, electrical, mechanical and chemical properties, which result in their great potential applications in optoelectronic devices, sensors, photocatalysts and other fields. Especially, electrospun metal- oxide-loaded nanofibers have attracted much attention in many fields. However, the single-needle Electrospinning (ES) inhibits the industrial application of these electrospun nanofiber composites. Bubble-Electrospinning (BE) is an effective free surface ES for mass production of nanofiber membranes loaded with metal oxide. Few relevant patents to the topic have been reviewed and introduced. METHODS The BE was used to prepare mass production of Cu(Ac)2 /Zn(Ac)2/ PVDF/ PAN Composite Nanofiber Membranes (CNFMs). Then PVDF/PAN CNFMs containing CuO and ZnO nanocrystals were obtained by heat-treatment. Finally, CuO nanosheets and ZnO nanorods were successfully grown on the surface of PVDF/PAN CNFMs using hydrothermal method. In addition, the morphology and crystal structure of CNFMs were investigated by scanning electron microscopy (SEM) and X-Ray Powder Diffractometer (XRD). RESULTS The morphology and crystal structure of the samples were characterized by SEM and XRD. The results showed the heat treatment temperature of 150oC and the hydrothermal temperature of 150oC were the optimal process parameters for the fabrication of PVDF/PAN CNFMs loaded with CuO and ZnO nanocrystals, and a higher heat treatment temperature results in higher crystallinity of ZnO and CuO. CONCLUSION CuO/ZnO/PVDF/PAN CNFMs were successfully prepared by a combination of BE, heattreatment and hydrothermal method. The ZnO/CuO beads obtained by heat treatment is the key point of growing ZnO/CuO nanocrystals, and the growth temperature has great effect on the morphology of ZnO/CuO nanocrystals.

中文翻译：

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气泡电纺丝法制备CuO / ZnO / PVDF / PAN纳米纤维复合材料及其表征。

背景技术负载有金属氧化物如CuO和ZnO的纳米复合材料具有优异的光学，电，机械和化学性质，这导致其在光电器件，传感器，光催化剂和其他领域中的巨大潜在应用。特别地，负载有电纺金属氧化物的纳米纤维在许多领域引起了很多关注。但是，单针静电纺丝（ES）抑制了这些电纺纳米纤维复合材料的工业应用。气泡静电纺丝（BE）是有效的自由表面ES，可用于批量生产负载有金属氧化物的纳米纤维膜。该主题的相关专利很少被审查和介绍。方法使用BE制备大量生产的Cu（Ac）2 / Zn（Ac）2 / PVDF / PAN复合纳米纤维膜（CNFMs）。然后通过热处理获得了含有CuO和ZnO纳米晶体的PVDF / PAN CNFM。最后，采用水热法成功地在PVDF / PAN CNFMs表面上生长了CuO纳米片和ZnO纳米棒。另外，通过扫描电子显微镜（SEM）和X射线粉末衍射仪（XRD）研究了CNFM的形貌和晶体结构。结果用SEM和XRD对样品的形貌和晶体结构进行了表征。结果表明，热处理温度为150oC和水热温度为150oC是制备载有CuO和ZnO纳米晶体的PVDF / PAN CNFM的最佳工艺参数，较高的热处理温度会导致ZnO和CuO的结晶度更高。结论结合BE成功制备了CuO / ZnO / PVDF / PAN CNFM。热处理和水热法。通过热处理获得的ZnO / CuO珠是生长ZnO / CuO纳米晶体的关键，生长温度对ZnO / CuO纳米晶体的形貌有很大影响。