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多壁碳纳米管负载镁掺杂氧化锌纳米颗粒的研究 总被引:1,自引:0,他引:1
利用醋酸锌和醋酸镁为原料,无水乙醇为溶剂,草酸为沉淀剂,通过共沉淀法和后续热处理实现多壁碳纳米管表面负载镁掺杂氧化锌纳米颗粒,并使用X射线衍射仪、扫描电子显微镜、透射电子显微镜和紫外吸收光度计研究复合材料的形貌和光学性能。电子显微镜结果表明,在450℃热处理下,多壁碳纳米管表面能够均匀地负载镁掺杂氧化锌纳米颗粒,其颗粒粒径大约为10~20nm。紫外吸收光谱结果说明,镁掺杂显著地提高多壁碳纳米管/氧化锌复合材料的紫外吸收性能,而且其紫外吸收峰向短波方向蓝移达22nm。 相似文献
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In order to attain new functional nanomaterials with good magnetic property, multi-walled carbon nanotubes/hematite (MWNTs/α-Fe2O3) composites were synthesized using the co-deposition method. MWNTs/α-Fe2O3 composites were characterized by X-ray diffractometry (XRD), scanning electron microscopy (SEM), transmission electron microscopy(TEM), Raman spectroscopy and vibrating sample magnetometry (VSM). The experimental results show that the structure and magnetic properties of the MWNTs/α-Fe2O3 composites are related to the heat treatment temperature. MWNTs are modified by α-Fe2O3 nano-particles and α-Fe2O3 nanorods with a diameter of 10?50 nm after being treated at 450 °C. When the heat treatment temperature exceeds 600 °C, MWNTs are only modified by Fe3O4 particles. Furthermore, the MWNTs composites treated at 450 °C and 600 °C have good magnetic behaviour. 相似文献
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