| CeO2纳米管的水热合成、表征及性能研究 |
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| 引用本文： | 赵晓兵,游静,陆晓旺,陈志刚. CeO2纳米管的水热合成、表征及性能研究[J]. 无机材料学报, 2011, 0(2): 159-164 |
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| 作者姓名： | 赵晓兵 游静 陆晓旺 陈志刚 |
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| 作者单位： | 常州大学材料科学与工程学院;苏州科技学院化学与生物工程学院; |
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| 基金项目： | 国家自然科学基金(20771047); 江苏省自然科学基金(BK2008541)~~ |
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| 摘 要： | 以P123为表面活性剂,采用水热法合成CeO2纳米管.研究反应时间、反应温度、表面活性剂浓度对CeO2纳米管形成的影响规律.采用TEM、XRD、N2吸脱附仪对样品的微观结构进行表征.并考察CeO2纳米管对亚甲基蓝溶液的催化性能.结果表明,当反应时间为72 h、反应温度为160℃、n(P123):n(CeCl3.7H2O)=1:5时,可制备出单晶结构的CeO2纳米管.所制备的CeO2纳米管外径为40~60nm,内径为20 nm左右,长度为500~1000nm.CeO2纳米管是由Ce(OH)3晶种的溶解再结晶-异向生长-自我卷曲形成的.相对于CeO2纳米颗粒和CeO2纳米棒,CeO2纳米管对亚甲基蓝染料的脱色率有明显提高.这与CeO2纳米管孔道的吸附作用,暴露的高反应活性面(110)和表面有大量缺陷有关.
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| 关 键 词： | 水热法 CeO2纳米管 催化 |
Hydrothermal Synthesis,Characterization and Property of CeO_2 Nanotube |
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| ZHAO Xiao-Bing,YOU Jing,LU Xiao-Wang,CHEN Zhi-Gang. Hydrothermal Synthesis,Characterization and Property of CeO_2 Nanotube[J]. Journal of Inorganic Materials, 2011, 0(2): 159-164 |
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| Authors: | ZHAO Xiao-Bing YOU Jing LU Xiao-Wang CHEN Zhi-Gang |
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| Affiliation: | ZHAO Xiao-Bing1,YOU Jing1,LU Xiao-Wang1,CHEN Zhi-Gang2(1.Faculty of Materials Science and Engineering,Changzhou University,Changzhou 213164,China,2.Department of Chemistry and Bioengineering,Suzhou University of Science and Technology,Suzhou 215011,China) |
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| Abstract: | CeO2 nanotubes were synthesized by hydrothermal method using PEO-PPO-PEO(P123) as surfactant.The effects of reaction time,reaction temperature and concentration of surfactant on the formation of CeO2 nano-tubes were investigated.The microstructures of the samples were characterized by transmission electron microscope,X-ray diffraction and N2 adsorption-desorption methods.The catalytic properties of CeO2 samples on methylene blue were also examined.The results indicate that single crystal CeO2 nanotubes are ... |
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| Keywords: | hydrothermal CeO2 nanotube catalysis |
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