氧化锌纳米纤维的制备及其形貌调控

Preparation and morphology controlment of one-dimensional zinc oxide nano-fibers

为制备形态均一、形貌良好的氧化锌纳米纤维,通过改变前驱体溶液的溶剂体系和煅烧温度,对静电纺丝方法制备出的纳米纤维进行微观形貌调控,并利用扫描电子显微镜、X衍射仪、全自动气体吸附仪等对制备的氧化锌纳米纤维进行表征。结果显示,当乙酰丙酮/N,N-二甲基甲酰胺混合溶液作为前驱体溶液中的溶剂组分、热处理温度为500℃时,所得氧化锌纳米纤维形貌均一,纤维直径约为200 nm,呈现出均匀的颗粒堆积状,比表面积约为9.03 m^(2)/g,氧化锌纳米纤维对紫外光有着优异的吸收性能,且禁带宽度可达3.18 eV。

To prepare ZnO nanofibers with homogeneous and good morphology,the microscopic morphologies of nanofibers were adjusted by changing the solvents and calcination temperature of the precursor solution during the electrostatic spinning process.The ZnO nanofibers were characterized by scanning electron microscopy,X ray diffractometer and automatic gas adsorption instrument.The results showed that the ZnO nanofibers were with homogeneous morphologies when acetylacetone/N,N-dimethylformamide(DMF)mixture solution was used as the solvent of the precursor and the heat treatment temperature was at 500℃.The ZnO nanofibers were with average diameter of 200 nm,showing a uniform particle stacking shape and a specific surface area of 9.03 m^(2)/g.The ZnO nanofibers had excellent absorption performance to UV light and the forbidden bandwidth was up to 3.18 eV.