Temperature induced morphology transformation of ZnO under hydrothermal condition

摘要：

　　ZnO nanostructures with different morphology were successfully prepared via a hexamethylendiamine-assisted hydrothermal synthesis route by only adjusting reaction temperature.The prepared ZnO samples were characterized by powder X-ray diffraction (XRD),field-emission scanning electron microscopy (FESEM),transmission electron microscopy (TEM) and high resolution TEM (HRTEM).Results indicated that uniform flake-like ZnO nanoparticles with a similar thickness of about 70 nm and flower-like ZnO nanostructures assembled by prism-like nanorods were prepared at 120 ℃ and 180 ℃,respectively.Possible mechanisms for the formation of ZnO with different morphologies were discussed.The photocatalytic properties of the as-prepared flake-like ZnO nanoparticles and flower-like ZnO nanostructures were studied.

关键词： Zinc oxide Hydrothermal synthesis FESEM Photocatalysis

作者: Yanwei Li Guang Sun Jianliang Cao Hari Bala Yan Wang Jie Wang Xiaoshuai Wu Zhanying Zhang

作者单位: School of Chemistry and Physics,Henan Polytechnic University,Jiaozuo 454000,P R China School of Materials Science and Engineering,Henan Polytechnic University,Jiaozuo 454000,P R China School of Saftey Science and Engineering,Henan Polytechnic University,Jiaozuo 454000,P R China

会议类型: 国际会议

会议名称: the international conference on Frontier of Nanoscience and Technology (2011纳米科学与技术国际会议(ICFNST 2011))

会议地点: 大理

会议语种:英文

页码: 559-564

在线出版日期: 2011-08-18（万方平台首次上网日期，不代表论文的发表时间）