| Fibrous adsorbent containing amidoxime and carboxyl groups and adsorption of uranium |
| |
| 作者姓名： | Fu Wentong Luo Bingkun Chen Huizhen Zhuang Wanjin Liu Shiyu Chen Lianzhi |
| |
| 作者单位： | Third Institute of Oceanography, State Oceanic Administration Xiamen, China;Third Institute of Oceanography, State Oceanic Administration Xiamen, China;Third Institute of Oceanography, State Oceanic Administration Xiamen, China;Third Institute of Oceanography, State Oceanic Administration Xiamen, China;Third Institute of Oceanography, State Oceanic Administration Xiamen, China;Third Institute of Oceanography, State Oceanic Administration Xiamen, China |
| |
| 摘 要： | Through introducing amidoxime and carboxyl groups into polyacrylonitrile fiber, a fibrous adsorbent with high capacity and fast adsorption rate was obtained, which could adsorb 4.6 mg uranium/g in 10 days from natural seawater. The influence of the functional group content on equilibrium adsorption capacity Xm and adsorption rate constant K of the adsorbent was studied, thus indicating that the contents of amidoxime and carboxyl groups correlated with Xm and K respectively. It is concluded that the amidoxime group is of reactive adsorption, while the carboxyl group is of promotion in the adsorption of uranium. In this paper, the mechanism of uranium adsorption on the fibrous adsorbent is deduced and the chelating structure of adsorption species is discussed with molecule orbit theory.
|
| 收稿时间： | 9/3/1986 12:00:00 AM |
| 修稿时间： | 1987/5/20 0:00:00 |
Fibrous adsorbent containing amidoxime and carboxyl groups and adsorption of uranium |
| |
| Fu Wentong,Luo Bingkun,Chen Huizhen,Zhuang Wanjin,Liu Shiyu,Chen Lianzhi.Fibrous adsorbent containing amidoxime and carboxyl groups and adsorption of uranium[J].Acta Oceanologica Sinica,1988,7(1):74-81. |
| |
| Authors: | Fu Wentong Luo Bingkun Chen Huizhen Zhuang Wanjin Liu Shiyu and Chen Lianzhi |
| |
| Institution: | Third Institute of Oceanography, State Oceanic Administration Xiamen, China |
| |
| Abstract: | Through introducing amidoxime and carboxyl groups into polyacrylonitrile fiber, a fibrous adsorbent with high capacity and fast adsorption rate was obtained, which could adsorb 4.6 mg uranium/g in 10 days from natural seawater. The influence of the functional group content on equilibrium adsorption capacity Xm and adsorption rate constant K of the adsorbent was studied, thus indicating that the contents of amidoxime and carboxyl groups correlated with Xm and K respectively. It is concluded that the amidoxime group is of reactive adsorption, while the carboxyl group is of promotion in the adsorption of uranium. In this paper, the mechanism of uranium adsorption on the fibrous adsorbent is deduced and the chelating structure of adsorption species is discussed with molecule orbit theory. |
| |
| Keywords: | |
| 本文献已被 CNKI 等数据库收录！ |
| 点击此处可从《海洋学报(英文版)》浏览原始摘要信息 |
| 点击此处可从《海洋学报(英文版)》下载免费的PDF全文 |
|
