| 掺硼铁氧化物在紫外-可见光下的催化性能 |
| |
| 引用本文： | 胡珊,刘广龙,朱端卫,廖水姣.掺硼铁氧化物在紫外-可见光下的催化性能[J].环境科学学报,2011,31(9):1894-1899. |
| |
| 作者姓名： | 胡珊 刘广龙 朱端卫 廖水姣 |
| |
| 作者单位： | 农业部亚热带农业资源与环境重点开放实验室华中农业大学微量元素研究中心植物营养与生态研究室,武汉,430070 |
| |
| 基金项目： | 国家自然科学基金面上项目 |
| |
| 摘 要： | 采用溶胶凝胶法制备不同掺硼量的针铁矿和赤铁矿催化剂,并用X射线衍射图谱（XRD）、比表面积（BET法）、紫外可见漫反射光谱（DRS）及电荷零点（盐滴定法）对催化剂进行表征.结果表明：硼掺杂能改变催化剂的晶体结构,增大其比表面积和Lewis表面酸度,并能提高催化剂的紫外-可见光活性.在紫外光下,掺硼质量分数2%的赤铁矿对...
|
| 关 键 词： | 针铁矿 赤铁矿 硼掺杂 甲基橙 光降解 |
| 收稿时间： | 2010/11/19 0:00:00 |
| 修稿时间： | 1/23/2011 9:03:08 AM |
Photocatalytic activity of boron-doped iron oxides under UV and visible light |
| |
| HU Shan,LIU Guanglong,ZHU Duanwei and LIAO Shuijiao.Photocatalytic activity of boron-doped iron oxides under UV and visible light[J].Acta Scientiae Circumstantiae,2011,31(9):1894-1899. |
| |
| Authors: | HU Shan LIU Guanglong ZHU Duanwei and LIAO Shuijiao |
| |
| Institution: | Laboratory of Plant Nutrition and Ecological Environment Research, Center for Microelement Research of Huazhong Agricultural University, Key Laboratory of Subtropical Agriculture and Environment, Ministry of Agriculture of PRC, Wuhan 430070,Laboratory of Plant Nutrition and Ecological Environment Research, Center for Microelement Research of Huazhong Agricultural University, Key Laboratory of Subtropical Agriculture and Environment, Ministry of Agriculture of PRC, Wuhan 430070,Laboratory of Plant Nutrition and Ecological Environment Research, Center for Microelement Research of Huazhong Agricultural University, Key Laboratory of Subtropical Agriculture and Environment, Ministry of Agriculture of PRC, Wuhan 430070 and Laboratory of Plant Nutrition and Ecological Environment Research, Center for Microelement Research of Huazhong Agricultural University, Key Laboratory of Subtropical Agriculture and Environment, Ministry of Agriculture of PRC, Wuhan 430070 |
| |
| Abstract: | Sol-gel method was used to prepare different photocatalysts, boron-doped goethite and hematite, which were characterized by X-ray diffractometry (XRD), special surface area (BET method), UV-Vis diffuse reflectance spectra (DRS) and zero point of charge (salt titration method). The results show that boron doping can change the crystal structure of photocatalysts, enlarge their special surface areas, increase their Lewis acid sites and improve their photocatalytic activity in UV and visible region. 2% B-doped hematite exhibits good photodegradation ability of 29.1% degradation rate to methyl orange under UV light, while 2% B-doped goethite exhibits great photodegradation performance about 17.3% in visible light. |
| |
| Keywords: | goethite hematite boron doping methyl orange photodegradation |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
| 点击此处可从《环境科学学报》浏览原始摘要信息 |
| 点击此处可从《环境科学学报》下载免费的PDF全文 |
|
