Adsorption of chloride anion from aqueous solution by calcined (Mg-Al) hydrotalcites of different Mg/Al ratio
文献类型：会议论文
| 作者 | Wan, Dongjin4; Qu, Dan2; Xiao, Hua1; Liu, Yongde4; Lu, Ting4; Xu, Wenqing3 |
| 出版日期 | 1905-07-03 |
| 会议日期 | May 28, 2011 - May 30, 2011 |
| 会议地点 | Changsha, China |
| 关键词 | Adsorption isotherms - Crystallite size - Magnesium alloys - Scanning electron microscopy - Binary alloys - X ray diffraction - Calcination - Solutions - Energy dispersive X ray analysis - Chlorine compounds - Precipitation (chemical) - Aluminum alloys |
| 卷号 | 233-235 |
| DOI | 10.4028/www.scientific.net/AMR.233-235.420 |
| 页码 | 420-426 |
| 英文摘要 | Hydrotalcites (HT-X) of different Mg/Al ratio (X is Mg/Al molar ratio, 3 and 4) was synthesized by co-precipitation method. Calcined HTLCs (CHT-X) at 500掳C have been shown to recover their original layered structure by taking up chloride ion from aqueous solution. Adsorption of chloride by CHT-X was investigated in batch mode. The kinetics study showed that the pseudo-second-order kinetics model could be used to describe the adsorption process satisfactorily. The equilibrium isotherm showed that the Langmuir model gave a better fit to the experimental data than the Freundlich model. The maximum adsorption capacity of CHT-3 was 83.33 mg/g; CHT-4 was 90.09 mg/g .The samples of different Mg/Al ratio have different crystallite size, thus showing different adsorption capacity. As the Mg/Al ratio increases from 3 to 4; the electric charge density between the layers becomes weaker; the interlayer spacing increases; the sample shows greater adsorption capacity. The HT-X where characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), electron dispersive X-ray analysis (EDX). 漏 (2011) Trans Tech Publications, Switzerland. |
| 资助机构 | Trans Tech Publications, P.O. Box 1254, Clausthal-Zellerfeld, D-38670, Germany |
| 会议录 | 2011 International Conference on Chemical Engineering and Advanced Materials, CEAM 2011
 |
| 学科主题 | Adsorption |
| 源URL | [http://ir.ipe.ac.cn/handle/122111/59534]  |
| 作者单位 | 1.Institute of Environment, Resource, Soil and Fertilizer, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, China 2.College of Environmental Science and Engineering, Beijing Forestry University, Beijing 100085, China 3.Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, China 4.School of Chemistry and Chemical Engineering, Henan University of Technology, Zhengzhou 450001, China |
| 推荐引用方式 GB/T 7714 | Wan, Dongjin,Qu, Dan,Xiao, Hua,et al. Adsorption of chloride anion from aqueous solution by calcined (Mg-Al) hydrotalcites of different Mg/Al ratio[C]. 见:. Changsha, China. May 28, 2011 - May 30, 2011. |
入库方式： OAI收割
来源：过程工程研究所
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