Adsorption of Polycyclic Aromatic Hydrocarbons from aqueous solution by Organic Montmorillonite Sodium Alginate Nanocomposites
文献类型：期刊论文
| 作者 | Dai, Wen-Jing; Wu, Pan; Liu, Di; Hu, Jian; Cao, Yang; Liu, Tao-Ze; Okoli, Chukwunonso Peter; Wang, Bing; Li, Ling |
| 刊名 | CHEMOSPHERE
 |
| 出版日期 | 2020-07 |
| 卷号 | 251页码:1-13 |
| 关键词 | PAHs Organic clay Sodium alginate Adsorption |
| ISSN号 | 0045-6535 |
| 英文摘要 | The adsorption method is generally considered a promising technique to remove inorganic and organic contaminants in an economically and environmentally friendly superior manner. In this study, organic montmorillonite sodium alginate composites were prepared, in which, montmorillonite and cationic surfactant (cetyltrimethylammonium bromide, CTAB) in different added amounts were coagulated with sodium alginate using CaCl2 as the crosslinking agent. The morphological properties of the composites were characterized thoroughly and employed in three typical target pollutants of polycyclic aromatic hydrocarbons (PAHs) (acenaphthene, fluorene, and phenanthrene) by batch adsorption experiments from aqueous solution. The composites provide an efficient alternative for PAHs removals. The composites could be stably separated and regenerated with methyl alcohol. Furthermore, the adsorption kinetic and isotherm data were well described by the Elovich kinetic and the Freundlich isotherm model, respectively. According to these, the adsorption process occurred via multilayer adsorption on the composite's energetically heterogeneous surface. Moreover, pore diffusion and hydrophobicity played a dominant role in the adsorption mechanism. Overall, our study offers a developed adsorbent that has the advantage of being recyclable, low cost, biodegradable and biocompatible for effectively removing PAHs from aqueous solution. (C) 2020 Elsevier Ltd. All rights reserved. |
| 源URL | [http://ir.rcees.ac.cn/handle/311016/45110]  |
| 专题 | 生态环境研究中心_土壤环境科学实验室 |
| 推荐引用方式 GB/T 7714 | Dai, Wen-Jing,Wu, Pan,Liu, Di,et al. Adsorption of Polycyclic Aromatic Hydrocarbons from aqueous solution by Organic Montmorillonite Sodium Alginate Nanocomposites[J]. CHEMOSPHERE,2020,251:1-13. |
| APA | Dai, Wen-Jing.,Wu, Pan.,Liu, Di.,Hu, Jian.,Cao, Yang.,...&Li, Ling.(2020).Adsorption of Polycyclic Aromatic Hydrocarbons from aqueous solution by Organic Montmorillonite Sodium Alginate Nanocomposites.CHEMOSPHERE,251,1-13. |
| MLA | Dai, Wen-Jing,et al."Adsorption of Polycyclic Aromatic Hydrocarbons from aqueous solution by Organic Montmorillonite Sodium Alginate Nanocomposites".CHEMOSPHERE 251(2020):1-13. |
入库方式： OAI收割
来源：生态环境研究中心
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