| 光还原法制备Ag/TiO2催化剂及光催化性能 |
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| 引用本文： | 方继敏, 陈俊宏, 黄秀燕, 汪恂. 光还原法制备Ag/TiO2催化剂及光催化性能[J]. 环境工程学报, 2017, 11(6): 3386-3390. doi: 10.12030/j.cjee.201603205 |
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| 作者姓名： | 方继敏 陈俊宏 黄秀燕 汪恂 |
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| 作者单位： | 1.武汉理工大学资源与环境工程学院, 武汉 430070; 2.武汉科技大学城市建设学院, 武汉 430083 |
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| 基金项目： | 国家自然科学基金资助项目（51272189 41372054） |
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| 摘 要： | 采用光还原法制备了Ag/TiO2催化剂，通过X射线衍射（XRD）、扫描电子显微镜（SEM）、场发射透射电子显微镜（TEM）、N2吸附-脱附（BET）和X射线光电子能谱（XPS）等测试手段对催化剂自身结构、形貌和孔结构等性质进行表征，并研究其对亚甲基蓝的光催化性能。结果表明，Ag的沉积能够大幅提高催化剂的光响应度，大大提高光催化活性。当Ag的摩尔分数为3%时，在可见光照射90 min后，催化剂对亚甲基蓝的脱色率达到78.52%。
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| 关 键 词： | 二氧化钛 Ag沉积 可见光催化 亚甲基蓝 |
| 收稿时间： | 2016-05-02 |
Preparation of Ag/TiO2 catalyst by photo-reduction and enhanced photocatalytic performance |
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| FANG Jimin, CHEN Junhong, HUANG Xiuyan, WANG Xun. Preparation of Ag/TiO2 catalyst by photo-reduction and enhanced photocatalytic performance[J]. Chinese Journal of Environmental Engineering, 2017, 11(6): 3386-3390. doi: 10.12030/j.cjee.201603205 |
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| Authors: | FANG Jimin CHEN Junhong HUANG Xiuyan WANG Xun |
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| Affiliation: | 1.School of Resources and Environmental Engineering, Wuhan University of Technology, Wuhan 430070, China; 2.Institute of Urban Construction, Wuhan University of Science and Technology, Wuhan 430083, China |
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| Abstract: | An Ag/TiO2 catalyst was prepared via a photoreduction method after hydrothermal process.To study the properties such as pore structure and morphology, the prepared samples were characterized by X-Ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), N2 adsorption-desorption isotherm (BET), and X-Ray photoelectron spectrometry (XPS).The results of the photocatalytic experiments indicate that photocatalytic activity is improved after doping with Ag;78.52% of methylene blue is removed by 3% Ag/TiO2 catalyst in 90 min under visible light. |
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| Keywords: | TiO2 deposition of Ag visible light photoctalysis methylene blue |
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