CAJ | 학술논문

以乙酸锌为前驱物，乙醇为溶剂，油酸钠为表面修饰剂，采用溶液化学法，在乙醇体系中制得纳米ZnO。然后缓慢加入一定量的硝酸银乙醇溶液，在乙醇的还原作用下将Ag+还原为Ag纳米粒子，制得ZnO/Ag复合纳米粒子。通过紫外-可见吸收光谱( UV-Vis)、荧光光谱( FL)、透射电子显微镜( TEM)和X射线衍射( XRD)等方法对所制备的氧化锌-银复合纳米粒子样品进行表征。结果表明，所合成的ZnO/Ag复合纳米粒子为球形，尺寸为20-30nm且粒径分布较窄。 Ag纳米粒子附着于ZnO纳米粒子表面，并起到良好的表面修饰作用。对制备ZnO/Ag复合纳米粒子的机理进行了初步探究。
이을산자위전구물，을순위용제，유산납위표면수식제，채용용액화학법，재을순체계중제득납미ZnO。연후완만가입일정량적초산은을순용액，재을순적환원작용하장Ag+환원위Ag납미입자，제득ZnO/Ag복합납미입자。통과자외-가견흡수광보( UV-Vis)、형광광보( FL)、투사전자현미경( TEM)화X사선연사( XRD)등방법대소제비적양화자-은복합납미입자양품진행표정。결과표명，소합성적ZnO/Ag복합납미입자위구형，척촌위20-30nm차립경분포교착。 Ag납미입자부착우ZnO납미입자표면，병기도량호적표면수식작용。대제비ZnO/Ag복합납미입자적궤리진행료초보탐구。
Nano-ZnO have been synthesized by using ethanol as solvent,zinc acetate as precursor and sodium oleate as surface cap-ping agent through wet-chemical route. The silver nitrate ethanol solution was slowly added into the reaction system. Ag+ was re-duced to Ag particles by ethanol as reducing agent,and then the ZnO/Ag composite nanoparticles were formed. The as-synthesized ZnO/Ag composite nanoparticles were characterized by UV-Vis absorption spectroscopy( UV-Vis) ,fluorescence spectroscopy( FL) , transmission electron microscope(TEM)and X-ray diffraction(XRD). The results show that the size of spherical as-synthesized ZnO/Ag composite nanoparticles is 20-30nm with a narrow size distribution. Ag nanoparticles adsorbed on the surface of ZnO and have a good surface modification effect. A possible formation mechanism of ZnO/Ag composite nanoparticles was also discussed.