Removal of fluoride from aqueous media by Fe3O4@Al(OH)(3) magnetic nanoparticles
文献类型：期刊论文
| 作者 | Zhao, Xiaoli; Wang, Jieming; Wu, Fengchang; Wang, Thanh; Cai, Yaqi; Shi, Yali; Jiang, Guibin |
| 刊名 | JOURNAL OF HAZARDOUS MATERIALS
 |
| 出版日期 | 2010-01-15 |
| 卷号 | 173期号:3页码:102-109 |
| 关键词 | Fluoride Magnetic nanosized adsorbent Hydrous aluminum oxide |
| 中文摘要 | A novel magnetic nanosized adsorbent using hydrous aluminum oxide embedded with Fe3O4 nanoparticle (Fe3O4@Al(OH)(3) NPs), was prepared and applied to remove excessive fluoride from aqueous solution. This adsorbent combines the advantages of magnetic nanoparticle and hydrous aluminum oxide floc with magnetic separability and high affinity toward fluoride, which provides distinctive merits including easy preparation, high adsorption capacity, easy isolation from sample solutions by the application of an external magnetic field. The adsorption capacity calculated by Langmuir equation was 88.48 mg g(-1) at pH 6.5. Main factors affecting the removal of fluoride, such as solution pH, temperature, adsorption time, initial fluoride concentration and co-existing anions were investigated. The adsorption capacity increased with temperature and the kinetics followed a pseudo-second-order rate equation. The enthalpy change (Delta H-0) and entropy change (Delta S-0) was 6.836 kJ mol(-1) and 41.65 J mol(-1) K-1, which substantiates the endothermic and spontaneous nature of the fluoride adsorption process. Furthermore, the residual concentration of fluoride using Fe3O4@Al(OH)(3) NPs as adsorbent could reach 0.3 mg L-1 with an initial concentration of 20 mg L-1, which met the standard of World Health Organization (WHO) norms for drinking water quality. All of the results suggested that the Fe3O4@Al(OH)(3) NPs with strong and specific affinity to fluoride could be excellent adsorbents for fluoride contaminated water treatment. (C) 2009 Elsevier B.V. All rights reserved. |
| WOS记录号 | WOS:000273135600013 |
| 源URL | [http://ir.rcees.ac.cn/handle/311016/21135]  |
| 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 | Zhao, Xiaoli,Wang, Jieming,Wu, Fengchang,et al. Removal of fluoride from aqueous media by Fe3O4@Al(OH)(3) magnetic nanoparticles[J]. JOURNAL OF HAZARDOUS MATERIALS,2010,173(3):102-109. |
| APA | Zhao, Xiaoli.,Wang, Jieming.,Wu, Fengchang.,Wang, Thanh.,Cai, Yaqi.,...&Jiang, Guibin.(2010).Removal of fluoride from aqueous media by Fe3O4@Al(OH)(3) magnetic nanoparticles.JOURNAL OF HAZARDOUS MATERIALS,173(3),102-109. |
| MLA | Zhao, Xiaoli,et al."Removal of fluoride from aqueous media by Fe3O4@Al(OH)(3) magnetic nanoparticles".JOURNAL OF HAZARDOUS MATERIALS 173.3(2010):102-109. |
入库方式： OAI收割
来源：生态环境研究中心
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。