| 掺杂银的纳米二氧化钛的制备及其光催化性能 |
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| 引用本文： | 王传彩,李文娟,吕东梅,王广丽,景志红.掺杂银的纳米二氧化钛的制备及其光催化性能[J].曲阜师范大学学报,2010,36(2):97-100. |
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| 作者姓名： | 王传彩 李文娟 吕东梅 王广丽 景志红 |
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| 作者单位： | 曲阜师范大学化学与化工学院,273165,山东省曲阜市 |
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| 基金项目： | 国家科技部星火科技计划项目，山东省教育厅科技计划项目 |
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| 摘 要： | 以钛酸四丁酯、硝酸银为原料,通过溶胶—凝胶(Sol-gel)法制备了掺杂不同含量银的TiO2纳米粉体,并采用XRD、HRTEM、FT-IR手段对样品进行结构表征.XRD结果表明,掺杂银和未掺杂的TiO2纳米粉体均为四方相锐钛矿型,平均粒径大约为6-12 nm.适量银的掺杂有效抑制了粒径的增大以及向金红石型的相转化.光催化活性实验结果显示,掺银的TiO2比纯TiO2对有机染料刚果红的光催化降解活性明显提高,且银的最佳掺杂量是3%.此外,样品3%Ag-TiO2对次甲基兰和罗丹明B显示出较高的光催化活性,而对甲基橙的光催化活性不明显,原因可能与染料分子的不同结构有关.
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| 关 键 词： | 溶胶-凝胶(Sol-gel)法 Ag-TiO2纳米颗粒 制备 光催化 |
Preparation and Photocatalytic Activity of Ag Doped TiO_2 Nanoparticles |
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| WANGChuan-cai,LIWen-juan,LUDong-mei,WANGGuang-li,JINGZhi-hong.Preparation and Photocatalytic Activity of Ag Doped TiO_2 Nanoparticles[J].Journal of Qufu Normal University(Natural Science),2010,36(2):97-100. |
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| Authors: | WANGChuan-cai LIWen-juan LUDong-mei WANGGuang-li JINGZhi-hong |
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| Institution: | WANG+Chuan-cai,LI+Wen-juan,LU+Dong-mei,WANG+Guang-li,JING+Zhi-hong(College+of+Chemistry+,+Chemical+Engineering,Qufu+Normal+University,273165,Qufu,Sh,ong,PRC) |
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| Abstract: | TiO2 nanoparticles with various amounts of silver have been prepared by the sol-gel process using tetrabutyl titanate and silver nitrate as raw materials.The pure TiO2 and Ag-TiO2 nanoparticles have been characterized by XRD,FT-IR and HRTEM techniques,respectively.XRD results showed that both the pure TiO2 and Ag-TiO2 nanoparticles were tetragonal anatase phase and the average particle size was in the range of 6-12 nm.It would inhibit the increase of the crystallite size and the phase transformation from th... |
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| Keywords: | sol-gel method Ag-TiO2 nanoparticles preparation photocatalysis |
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