| 锶离子在纳米TiO2表面单层分散阈值的研究 |
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| 引用本文： | 宋长友,吴念祖,王平.锶离子在纳米TiO2表面单层分散阈值的研究[J].北京化工大学学报(自然科学版),2004,31(4):50-52. |
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| 作者姓名： | 宋长友 吴念祖 王平 |
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| 作者单位： | 1.北京化工大学材料科学与工程学院,北京 100029; 2.北京大学化学学院,北京 100871; |
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| 基金项目： | 国家重点基础研究发展计划(973计划) |
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| 摘 要： | 采用浸渍法制备了表面吸附Sr2+ 的锐钛型纳米TiO2系列样品,通过XRD法和XPS法研究了Sr2+在纳米TiO2表面单层分散的阈值。两种研究方法测得的阈值均为1.0个/nm2,按照密置单层模型计算得到估算阈值为5.3个/nm2,大于所得实际阈值。
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| 关 键 词： | 自发单层分散 单层分散阈值 纳米二氧化钛 硝酸锶 XRD XPS 自发单层分散 单层分散阈值 纳米二氧化钛 硝酸锶 XRD XPS |
| 收稿时间： | 2003-11-27 |
| 修稿时间： | 2003年11月27日 |
The monoplayer dispersion capacity of Sr2+ on the surface of nanometer-size TiO2 |
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| Song Chang you,Wu Nian zu,Wang Ping.The monoplayer dispersion capacity of Sr2+ on the surface of nanometer-size TiO2[J].Journal of Beijing University of Chemical Technology,2004,31(4):50-52. |
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| Authors: | Song Chang you Wu Nian zu Wang Ping |
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| Institution: | 1 College of Materials Science and Engineering; Beijing University of Chemical Technology; Beijing 100029; 2 College of Chemistry and Molecular Engineering; Peking University,Beijing 100871; China |
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| Abstract: | A serial samples of anatase nanometer size TiO 2 with Sr 2 on surface were prepared by a impregnating method, and the monoplayer dispersion capacity of Sr 2 on the surface of nanometer size TiO 2 was studied by means of XRD and XPS, both of which the capacities determined were 1 0 ions on per square nanometer of TiO 2 surface. The theoretical capacity given by a closely packed monoplayer model was 5 3 ions on per square nanometer of TiO 2 surface, bigger than the practical one. |
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| Keywords: | spontaneous monoplayer dispersion monoplayer dispersion capacity nanometer size TiO 2 strontium nitrate XRD XPS |
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