| 碳纳米管负载氧化铝材料的制备及其吸附水中氟离子的研究 |
| |
| 引用本文： | 王曙光,李延辉,赵丹,赵华章,徐才录,栾兆坤,梁吉,吴德海. 碳纳米管负载氧化铝材料的制备及其吸附水中氟离子的研究[J]. 高等学校化学学报, 2003, 24(1): 95-99 |
| |
| 作者姓名： | 王曙光 李延辉 赵丹 赵华章 徐才录 栾兆坤 梁吉 吴德海 |
| |
| 作者单位： | 1. 中国科学院生态环境研究中心, 环境水化学国家重点实验室, 北京 100085;2. 清华大学机械工程系, 北京 100084;3. 东北大学理学院应用化学系, 沈阳 110004 |
| |
| 基金项目： | 国家自然科学重点基金 (批准号 :5983830 0 )，国家自然科学基金 (批准号 :5 0 1780 6 7)资助 |
| |
| 摘 要： | 采用碳纳米管和硝酸铝制备了碳纳米管负载氧化铝新型除氟材料.X射线衍射检测发现,当焙烧温度低于850℃时,氧化铝为无定形态,当焙烧温度为1050℃时,氧化铝为α形态,扫描电子显微镜观察到碳纳米管与氧化铝均匀掺杂.同时用碳纳米管负载氧化铝复合材料进行水中氟离子的吸附研究,结果表明,该复合材料具有优良的除氟效能.氧化铝负载量为30%、焙烧温度为450℃条件下制备的碳纳米管负载氧化铝复合材料的吸附除氟能力是γ-氧化铝的2.0～3.5倍,与IRA-410聚合树脂的吸附除氟能力相当,适宜pH范围为5.0～9.0,吸附等温线符合Freundlich方程.
|
| 关 键 词： | 碳纳米管 负载氧化铝 吸附 除氟 |
| 文章编号： | 0251-0790(2003)01-0095-05 |
| 收稿时间： | 2001-11-12 |
Studies on the Preparation of Alumina Supported on Carbon Nanotubes and Defluorination from Absorbed Water |
| |
| WANG Shu-Guang ,LI Yan-Hui ,ZHAO Dan ,,ZHAO Hua-Zhang ,XU Cai-Lu ,LUAN Zhao-Kun ,LIANG Ji ,WU De-Hai. Studies on the Preparation of Alumina Supported on Carbon Nanotubes and Defluorination from Absorbed Water[J]. Chemical Research In Chinese Universities, 2003, 24(1): 95-99 |
| |
| Authors: | WANG Shu-Guang LI Yan-Hui ZHAO Dan ZHAO Hua-Zhang XU Cai-Lu LUAN Zhao-Kun LIANG Ji WU De-Hai |
| |
| Affiliation: | 1. State Key Laboratory of Environmental Aquatic Chemistry, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China;2. Department of Mechanical Engineering, Tsinghua University, Beijing 100084, China;3. Department of Chemistry of Science College, Northeast University, Shenyang 110004, China |
| |
| Abstract: | A novel material for fluoride removal, alumina supported on carbon nanotubes (Al2O3/CNT), was prepared from carbon nanotubes and aluminium nitrate. X-ray diffraction(XRD) spectra demonstrate that alumina was amorphous at calcination temperature lower than 850 ℃ while it was α-Al2O3 at 1 050 ℃. Scanning electron microscope(SEM) images showed that the CNT and alumina were homogenously mixed. Furthermore, the fluoride adsorption behavior on the surface of Al2O3/CNT was investigated. The results indicated that Al2O3/CNT had a high adsorption capacity. The fluoride adsorption capacity of the Al2O3/CNT, which was prepared under the conditions of 450 ℃ calcination temperature and 30% Al2O3 supported, was 2.0-3.5 times that of γ-Al2O3 and almost equals to that of IRA-410 polymeric resin. The adsorption isotherms of fluoride on Al2O3/CNT fit the Freundlich equation well, and optimal pH ranging from 5.0 to 9.0. |
| |
| Keywords: | Carbon nanotubes Supported alumina Adsorption Defluoride |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
| 点击此处可从《高等学校化学学报》浏览原始摘要信息 |
|
点击此处可从《高等学校化学学报》下载全文 |
|
