Adsorption of arsenate on lanthanum-impregnated activated alumina: In situ ATR-FTIR and two-dimensional correlation analysis study
文献类型：期刊论文
| 作者 | Shi, Qian-Tao; Yan, Wei |
| 刊名 | CHINESE CHEMICAL LETTERS
 |
| 出版日期 | 2015-02 |
| 卷号 | 26期号:2页码:200-204 |
| 关键词 | Arsenic Adsorption Lanthanum-impregnated activated alumina Two-dimensional (2D) correlation |
| 英文摘要 | Lanthanum modified materials have been widely used for the removal of hazardous anions. In this study, in situ ATR-FTIR and two-dimensional correlation analysis were employed to investigate the adsorption mechanism of arsenate (As(V)) on lanthanum-impregnated activated alumina (LAA). Our results showed that electrostatic interaction attracted As(V) anions to the LAA surface, and then As(V) could form monodentate configuration on the LAA surface at pH 5-9. The result of 2D-COS showed that two coexistent adsorbed As(V) species, H2AsO4- and HAsO42-, were adsorbed on the LAA surface without specific sequence at different pH conditions, indicating a negligible role of the incorporated protons of As(V) on the adsorption affinity to LAA surface. The results of this study reveal insights into LAA surface complexes on the molecular scale and provide theoretical support to new metal oxides design for efficient arsenic removal. (C) 2014 Wei Yan. Published by Elsevier B.V. on behalf of Chinese Chemical Society and Institute of Materia Medica, Chinese Academy of Medical Sciences. All rights reserved. |
| 研究领域[WOS] | Chemistry, Multidisciplinary |
| WOS记录号 | WOS:000351649200008 |
| 公开日期 | 2016-03-15 |
| 源URL | [http://ir.rcees.ac.cn/handle/311016/32505]  |
| 专题 | 生态环境研究中心_环境化学与生态毒理学国家重点实验室 |
| 推荐引用方式 GB/T 7714 | Shi, Qian-Tao,Yan, Wei. Adsorption of arsenate on lanthanum-impregnated activated alumina: In situ ATR-FTIR and two-dimensional correlation analysis study[J]. CHINESE CHEMICAL LETTERS,2015,26(2):200-204. |
| APA | Shi, Qian-Tao,&Yan, Wei.(2015).Adsorption of arsenate on lanthanum-impregnated activated alumina: In situ ATR-FTIR and two-dimensional correlation analysis study.CHINESE CHEMICAL LETTERS,26(2),200-204. |
| MLA | Shi, Qian-Tao,et al."Adsorption of arsenate on lanthanum-impregnated activated alumina: In situ ATR-FTIR and two-dimensional correlation analysis study".CHINESE CHEMICAL LETTERS 26.2(2015):200-204. |
入库方式： OAI收割
来源：生态环境研究中心
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