| 乙二胺用量对CeO2纳米棒合成的影响 |
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| 引用本文： | 王雷妮,鲁飞,孟凡明.乙二胺用量对CeO2纳米棒合成的影响[J].人工晶体学报,2012,41(3):714-717. |
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| 作者姓名： | 王雷妮 鲁飞 孟凡明 |
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| 作者单位： | 1. 安徽大学物理与材料科学学院,合肥230039;安徽省信息材料与器件重点实验室,合肥230039
2. 安徽大学物理与材料科学学院,合肥230039;安徽省信息材料与器件重点实验室,合肥230039;大连理工大学三束材料改性教育部重点实验室,大连116024 |
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| 基金项目： | 安徽省高等学校省级自然科研基金，安徽省自然科学基金，安徽省2010年高等学校省级教学研究项目，安徽大学“质量工程”建设基金，三束材料改性教育部重点实验室(大连理工大学)开放基金，安徽大学学术创新团队建设项目，安徽大学博士科研启动基金资助项目 |
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| 摘 要： | 采用水热法,以氯化铈为铈源、乙二胺为络合剂、水合肼为沉淀剂,通过改变乙二胺的用量制备了四种CeO2粉体样品,通过X射线衍射仪(XRD)、紫外可见分光光度计(UV-Vis)、荧光分光光度计(PL)和扫描电镜(SEM)对合成的CeO2样品的结构、形貌和光学性质进行表征。实验结果表明乙二胺剂量对样品的晶格常数、氧空位度、能带间隙、荧光强度等有显著影响。晶格常数随乙二胺剂量的增加先减小后增大,剂量为5 mL时晶格常数最小,氧空位度随乙二胺剂量的增加先增加后减少,剂量为5 mL时氧空位浓度最大、样品能带间隙最小、对紫外线的吸收最强、荧光强度最大。
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| 关 键 词： | 水热法 乙二胺 CeO2 纳米棒 光学性质 |
Influence of Ethanediamine Content on Synthesis of CeO2 Nanorods |
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| WANG Lei-ni
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LU Fei
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MENG Fan-ming.Influence of Ethanediamine Content on Synthesis of CeO2 Nanorods[J].Journal of Synthetic Crystals,2012,41(3):714-717. |
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| Authors: | WANG Lei-ni LU Fei MENG Fan-ming |
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| Institution: | 1,2,3(1.School of Physics and Materials Science,Anhui University,Hefei 230039,China;2.Key Laboratory of Materials Modification by Laser,Ion and Electron Beams,Ministry of Education,Dalian University of Technology,Dalian 116024,China;3.Anhui Key Laboratory of Information Materials and Devices,Anhui University,Hefei 230039,China) |
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| Abstract: | CeO2 nanoparticles were synthesized by hydrothermal method using Cerium chloride as cerium source,ethylenediamine as complexing agent,hydrazine hydrate as precipitant,using the different content of ethylenediamine to prepare four different samples.The structure,appearance and optical properties of the CeO2 samples were characterized by XRD,UV-Vis,SEM and PL.The results show that ethylenediamine content has a significant influence on the lattice constant,degree of oxygen vacancies,energy band gap and the fluorescence intensity.The lattice constant increases as the ethylenediamine content increasing to 5 mL and then decreases.The degree of oxygen vacancies decreases with the increase of dosages of ethylenediamine up to 5 mL and then increases.The band gap get minimum,UV absorption get strongest,fluorescence intensity get maximum with the ethylenediamine dosage of 5 mL. |
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| Keywords: | hydrothermal method ethylenediamine CeO2 nanorods optical properties |
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