Montmorillonite-Cu(II)/Fe(III) oxides magnetic material as adsorbent for removal of humic acid and its thermal regeneration
文献类型：期刊论文
| 作者 | Peng, XJ; Luan, ZK; Zhang, HM |
| 刊名 | CHEMOSPHERE
 |
| 出版日期 | 2006 |
| 卷号 | 63期号:2页码:300-306 |
| 关键词 | water treatment adsorption mechanism ionic strength magnetic separation |
| 英文摘要 | In this work, the adsorption features of montmorillonite and the magnetic properties of Cu(II)/Fe(III) oxides were combined in a material to produce magnetic adsorbent, which can be separated from the medium by a simple magnetic process after adsorption. The magnetic material is effective for the removal of humic acid. At pH 6.1, 96% removal was observed from 4.4 mg l(-1) humic acid solution containing 0.02 M NaCl. The adsorption is pH and ionic strength dependent. Adsorption is favored at lower pH values and dissolved NaCl can enhance the adsorption. The adsorption mechanism of humic acid to the magnetic material was suggested to be the ligand exchange reaction between carboxylic groups of humic acid molecules and the magnetic material surface. The magnetic material can be thermally regenerated. The temperature and time required to achieve good regeneration efficiency were determined to be 300 degrees C and 3 h, respectively. The regenerated adsorbent is still magnetic and approximately has as high specific saturation magnetization and good adsorption capacities as the as-prepared adsorbent. (c) 2005 Elsevier Ltd. All rights reserved. |
| WOS记录号 | WOS:000236989600015 |
| 源URL | [http://ir.rcees.ac.cn/handle/311016/23008]  |
| 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 | Peng, XJ,Luan, ZK,Zhang, HM. Montmorillonite-Cu(II)/Fe(III) oxides magnetic material as adsorbent for removal of humic acid and its thermal regeneration[J]. CHEMOSPHERE,2006,63(2):300-306. |
| APA | Peng, XJ,Luan, ZK,&Zhang, HM.(2006).Montmorillonite-Cu(II)/Fe(III) oxides magnetic material as adsorbent for removal of humic acid and its thermal regeneration.CHEMOSPHERE,63(2),300-306. |
| MLA | Peng, XJ,et al."Montmorillonite-Cu(II)/Fe(III) oxides magnetic material as adsorbent for removal of humic acid and its thermal regeneration".CHEMOSPHERE 63.2(2006):300-306. |
入库方式： OAI收割
来源：生态环境研究中心
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