| 射频磁控共溅射制备光催化Ag-TiO2薄膜 |
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| 引用本文： | 沈杰,蔡臻炜,沃松涛,崔晓莉,任达森,杨锡良,章壮健.射频磁控共溅射制备光催化Ag-TiO2薄膜[J].真空科学与技术学报,2005,25(1):33-36. |
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| 作者姓名： | 沈杰 蔡臻炜 沃松涛 崔晓莉 任达森 杨锡良 章壮健 |
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| 作者单位： | 复旦大学材料科学系,上海,200433 |
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| 基金项目： | 国家自然科学基金，上海市重点实验室基金 |
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| 摘 要： | 采用射频磁控共溅射法制备Ag-TiO2复合薄膜,通过控制Ag靶的溅射时间可调节Ag与TiO2的比例.所制备的Ag-TiO2薄膜为锐钛矿结构.通过紫外光照降解亚甲基蓝溶液和循环伏安法研究Ag-TiO2薄膜光催化及光电化学特性.实验结果表明:掺1.5% Ag的Ag-TiO2薄膜在紫外光照射下能增强亚甲基蓝溶液的降解并得到更大的光生电流.这种光催化的增强主要是由于光生电子-空穴对的复合被抑制的结果.
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| 关 键 词： | 薄膜 射频共溅射 光催化 循环伏安 |
| 文章编号： | 1672-7126(2005)01-0033-04 |
| 修稿时间： | 2004年9月14日 |
Photocatalytic Ag-TiO2 Thin Films Prepared by RF Magnetron Co-Sputtering |
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| Shen Jie,Cai Zhenwei,Wo Songtao,Cui Xiaoli,Ren Dasen,Yang Xiliang,Zhang Zhuangjian.Photocatalytic Ag-TiO2 Thin Films Prepared by RF Magnetron Co-Sputtering[J].JOurnal of Vacuum Science and Technology,2005,25(1):33-36. |
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| Authors: | Shen Jie Cai Zhenwei Wo Songtao Cui Xiaoli Ren Dasen Yang Xiliang Zhang Zhuangjian |
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| Abstract: | Ag-TiO 2 thin films were prepared by RF magnetron co-sputtering.The ratio of Ag to TiO 2 can be adjusted by controlling sputtering time of Ag.The Ag-TiO 2 thin films were found to have an anatase phase.Photocatalytic degradation of methylene blue (MB) dye in aqueous solutions by Ag-TiO 2 thin films was performed under UV irradiation.Electrochemical characteristics of Ag-TiO 2/ITO electrode under UV irradiation was studied with cyclic voltammetry.Experimental results show that an optimal Ag content of 1.5% enhanced the MB photodegradation and the photo-induced current.The enhancement of photocatalytic activity results from suppressing the excited electron-hole pair recombination. |
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| Keywords: | Ag-TiO2 |
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