Adsorption of microcystins by carbon nanotubes
文献类型：期刊论文
| 作者 | Yan, H; Gong, AJ; He, HS; Zhou, J; Wei, YX; Lv, L |
| 刊名 | CHEMOSPHERE
 |
| 出版日期 | 2006 |
| 卷号 | 62期号:1页码:142-148 |
| 关键词 | microcystin-RR microcystin-LR carbon nanotubes activated carbon clays adsorption |
| 英文摘要 | The production of cyanobacterial toxins microcystins (MCs) by cyanobacterial bloom which may promote the growth of tumor in human liver is a growing environmental problem worldwide. In this paper, the adsorption of MC-RR and LR, which were extracted from cyanobacterial cells in Dianchi Lake in China, by carbon nanotubes (CNTs), wood-based activated carbon (ACs) and clays were investigated. Compared with ACs and clay materials of sepiolite, kaolinite and talc tested, CNTs were found to have a strong ability in the adsorption of MCs. At the concentrations of 21.5 mg l(-1) MC-RR and 9.6 mg l(-1) MC-LR in 50 mmol phosphate buffer solution (pH 7.0), the adsorption amounts of MCs by CNTs with the range of outside diameter from 2 to 10 nm were 14.8 and 5.9 mg g(-1), which were about four times higher than those by other adsorbents tested. It was shown that with the decrease of CNTs outside diameters from 60 to 2 nm, the adsorption amount of MCs was apparently increased, however the size of CNTs particles formed in solution declined. This result implies that the size of CNTs tube pore that is fit for the molecular dimension of MCs plays a dominant role. Furthermore the specific surface area of CNTs was also found to be a factor in the adsorption of MCs. The results suggested that the selection of suitable size of CNTs as a kind of adsorbent is very important in the efficient eliminating MCs from drinking water in future. (c) 2005 Elsevier Ltd. All rights reserved. |
| WOS记录号 | WOS:000234279300018 |
| 源URL | [http://ir.rcees.ac.cn/handle/311016/22962]  |
| 专题 | 生态环境研究中心_环境水质学国家重点实验室 |
| 推荐引用方式 GB/T 7714 | Yan, H,Gong, AJ,He, HS,et al. Adsorption of microcystins by carbon nanotubes[J]. CHEMOSPHERE,2006,62(1):142-148. |
| APA | Yan, H,Gong, AJ,He, HS,Zhou, J,Wei, YX,&Lv, L.(2006).Adsorption of microcystins by carbon nanotubes.CHEMOSPHERE,62(1),142-148. |
| MLA | Yan, H,et al."Adsorption of microcystins by carbon nanotubes".CHEMOSPHERE 62.1(2006):142-148. |
入库方式： OAI收割
来源：生态环境研究中心
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