CAJ | 학술논문

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.
이용작산자화작산미위원료,무수을순위용제,초산위침정제,통과공침정법화후속열처리실현다벽탄납미관표면부재미참잡양화자납미과립,병사용X사선연사의、소묘전자현미경、투사전자현미경화자외흡수광도계연구복합재료적형모화광학성능.전자현미경결과표명,재450℃열처리하,다벽탄납미관표면능구균균지부재미참잡양화자납미과립,기과립립경대약위10～20nm.자외흡수광보결과설명,미참잡현저지제고다벽탄납미관/양화자복합재료적자외흡수성능,이차기자외흡수봉향단파방향람이체22nm.
MWNTs/Mg-doped ZnO composite were synthesized by co-deposition method and heat treatment,using zinc acetate and magnesium acetate as raw material,anhydrous ethanol as solvent and oxalic acid as precipitator.The images and optical property of MWNTs/Mg-doped ZnO composite were investigated by X-ray diffraction (XRD),scanning electron microscopy (SEM),transmission electron microscopy (TEM),and ultraviolet-visible (UV) absorption spectrophotometer.The experimental results of electron microscopy show that after treatment at 450℃,the surface of MWNTs is supported by Mg-doped ZnO nanoparticles with sizes in the range of 10-20nm.The UV absorption spectroscopy reveals that Mg-doping can improve the UV absorption ability of MWNTs/ZnO composite,and the maximum blueshift reach 22nm.