| 浸渍法制备Ag_2O-TiO_2纳米纤维及其光催化活性 |
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| 引用本文： | 游洋,张世英,万隆,许第发.浸渍法制备Ag_2O-TiO_2纳米纤维及其光催化活性[J].稀有金属材料与工程,2010(Z2). |
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| 作者姓名： | 游洋 张世英 万隆 许第发 |
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| 作者单位： | 长沙学院;湖南大学; |
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| 基金项目： | 国家自然科学基金(50872014); 长沙学院科研基金(SF030505) |
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| 摘 要： | 采用浸渍法制备直径约20nm,长度达到微米级,且形态分布均匀的Ag2O-TiO2纳米纤维。以TEM、XRD、DRS及XPS手段对样品晶型结构、微观形貌以及化学组成进行表征,探讨掺杂对TiO2纤维结构和性质的影响。结果表明:未掺杂纤维表面平滑,浸渍法制备的Ag2O-TiO2纤维表面有明显的球状颗粒存在,颗粒直径为2～5nm,分布均匀,且其XRD谱出现Ag2O的衍射峰。与未掺杂样品相比,掺杂纤维的DRS谱线发生蓝移,光催化降解亚甲基蓝实验表明Ag2O-TiO2纤维光催化活性较高。
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| 关 键 词： | Ag2O-TiO2 浸渍法 纳米纤维 光催化 |
Preparation and Their Photocatalytic Activity of Ag_2O-TiO_2 Nanofibers by Immersion Method |
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| You Yang,Zhang Shiying,Wan Long ,Xu Difa.Preparation and Their Photocatalytic Activity of Ag_2O-TiO_2 Nanofibers by Immersion Method[J].Rare Metal Materials and Engineering,2010(Z2). |
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| Authors: | You Yang Zhang Shiying Wan Long Xu Difa |
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| Affiliation: | You Yang1,2,Zhang Shiying1,Wan Long 2,Xu Difa 1 (1. Changsha University,Changsha 410003,China) (2. Hunan University,Changsha 410082,China) |
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| Abstract: | Ag2O-TiO2 nanofiber was prepared by immersion method, whose length was about 1000 nm and whose diameter was about 20 nm. It was observed that the Ag2O-TiO2 nanofiber distributed uniformly. The Ag2O-TiO2 nanofibers were characterized by means of transmission electron microscope (TEM), X-ray diffraction (XRD), X-ray photoelectron spectrum (XPS) and diffuse reflection spectra (DRS). The XRD patterns display the diffraction peak of Ag2O. Obviously, there were some small particles absorbed on the surface of nano... |
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| Keywords: | Ag2O-TiO2 immersion method nanofiber photocatalysis |
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