ZnO纳米棒有序阵列的制备及其AFM表征

ZnO纳米棒有序阵列的制备及其AFM表征 Fabrication of Aligned ZnO Nanorod Array and Its AFM Characterization 杨浩 YANG Hao 1 first-author 胡晓婧 HU Xiaojing 1 张恋 ZHANG Lian 1 赵慧平 ZHAO Huiping 1 吕中 Lü Zhong 1 陈嵘 CHEN Rong 1 武汉工程大学 绿色化工过程教育部重点实验室,湖北省新型反应器与绿色化学工艺重点实验室 武汉工程大学 绿色化工过程教育部重点实验室,湖北省新型反应器与绿色化学工艺重点实验室 Key Laboratory for Green Chemical Process of Ministry of Education and Hubei Key Laboratory of Novel Reactor and Green Chemical Technology,Wuhan Institute of Technology Key Laboratory for Green Chemical Process of Ministry of Education and Hubei Key Laboratory of Novel Reactor and Green Chemical Technology,Wuhan Institute of Technology 采用种子层辅助水热生长法制备了ZnO纳米棒有序阵列.将ZnO溶胶旋涂到玻片上,通过煅烧得到晶种,然后将载有晶种的玻片放入含有硝酸锌和六亚甲基四胺的反应釜里,经过水热反应得到垂直于玻片生长的ZnO纳米棒有序阵列.利用原子力显微镜（AFM）观测样品表面形貌并定量分析ZnO纳米棒的长度、直径和生长密度.结果表明,当旋涂转速为4 000r/min,旋涂次数为3次时所得到的ZnO晶种分布均匀,排列紧密,平均粒径为24.3nm.当反应物浓度为0.025mol/L,反应时间为3h,反应温度为90℃时,制备的ZnO纳米棒呈有序阵列,其中纳米棒的长度为164.4nm,直径为104.1nm,生长密度为64.7根/μm2. Aligned ZnO nanorod arrays were prepared by seed-layer assisted solution route.ZnO colloid particles were first spin-coated on a glass slip,and were calcined to gain ZnO seeds,then the glass slip with ZnO seeds were put into the autoclave with zinc nitrate and hexamethylenetetramine.The vertical-aligned ZnO nanorod arrays on glass slip were fabricated through the hydrothermal reaction.The surface morphology of the samples and the length,diameter and distribution density of the ZnO nanorod were characterized by atomic force microscopy（AFM）.The results show that well-dispersed and close-packed ZnO seeds with average diameter of 24.3 nm were prepared,under the condition of 4 000 r/min and coating 3 replicates.When the precursor concentration was 0.025 mol/L,aligned ZnO nanorod arrays were successfully obtained via hydrothermal reaction at 90 ℃ for 3 h.The height,diameter,and distribution density of the as-prepared nanorods were 164.4 nm,104.1 nm and 64.7 rods/μm2,respectively. 关键词:ZnO 纳米棒 原子力显微镜 有序阵列 ZnO nanorod AFM aligned array 10.14188/j.1671-8836.2013.04.002 TB383.1;O614.241 国家自然科学基金项目（21201135）;湖北省教育厅科学技术研究计划中青年人才项目（Q20121502）;武汉市科技局对外科技合作与交流计划（201231234465,201171034319）;武汉工程大学科学研究基金项目（237114） 2013-04-01 2021-04-01 4 59