| 稀土掺杂的纳米TiO2分散性及光学性能研究 |
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| 引用本文： | 孙蕊,陈思浩,邢晨晨. 稀土掺杂的纳米TiO2分散性及光学性能研究[J]. 中国稀土学报, 2011, 29(1) |
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| 作者姓名： | 孙蕊 陈思浩 邢晨晨 |
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| 作者单位： | 1. 上海工程技术大学材料工程学院,上海,201620
2. 上海工程技术大学化学化工学院,上海,201620 |
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| 基金项目： | 上海市"科技创新行动计划"项目，上海高校知识创新工程项目，上海工程技术大学研究生科研创新项目 |
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| 摘 要： | 采用溶胶凝胶法在同一条件下制备REa+:Ti4+=0.02和0.10的稀土掺杂的纳米TiO2材料,其中REn+为Nd3+,Ce4+,La3+,Er3+四种稀土元素.通过TG-DTG,XRD,TEM,UV-Vis等测试方法对所制备的纳米TiO2进行焙烧温度、晶胞尺寸、晶粒形貌、谱学特性等方面的研究.研究表明,稀土掺杂的纳米TiO2径粒尺寸均在20 nm左右,少量稀土掺杂不但有利于TiO2颗粒的分散,而且有利于TiO2向金红石相转变.同时,由于表面修饰作用和晶场效应的影响,掺杂使纳米材料在可见光范围内有不同程度的"红移"现象,Ce4+掺杂的纳米TiO2在可见光的"红移"程度最强.稀土掺杂的纳米TiO2在农用膜和节能材料上可广泛运用.
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| 关 键 词： | 稀土掺杂 纳米二氧化钛 溶胶凝胶法 光学性能 |
Preparation and Optical Study of Rare Earth Doped Titanium Oxides Nano Particles |
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| Sun Rui,Chen Sihao,Xing Chenchen. Preparation and Optical Study of Rare Earth Doped Titanium Oxides Nano Particles[J]. Journal of the Chinese Society of Rare Earths, 2011, 29(1) |
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| Authors: | Sun Rui Chen Sihao Xing Chenchen |
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| Affiliation: | Sun Rui1,Chen Sihao2,Xing Chenchen1(1.School of Materials Engineering,Shanghai University of Engineering and Science,Shanghai 201620,China,2.College of Chemistry and Chemical Engineering,Shanghai University of Engineering Science,China) |
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| Abstract: | The sol-gel synthesis was used under the same preparation conditions for rare earth doped TiO2 nano particles.The ratio of REn+ to Ti4+ was 0.02 or 0.10(REn+ was Nd3+,Ce4+,La3+,Er3+).TG-DTG,XRD,TEM,UV-Vis was used to analysis the roast temperature,size,morphology,spectral characteristics and so on.It was shown that the average cell size of rare earth doped TiO2 nano particles were around 20 nm,and a little rare-earth doped titanium dioxide materials was of benefit not only to the dispersion,but also to the ... |
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| Keywords: | rare earth doped TiO2 nano particles sol-gel synthesis optical properties |
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