Removal of water-soluble azo dye by the magnetic material MnFe2O4
文献类型：期刊论文
| 作者 | Wu, RC; Qu, JH |
| 刊名 | JOURNAL OF CHEMICAL TECHNOLOGY AND BIOTECHNOLOGY
 |
| 出版日期 | 2005 |
| 卷号 | 80期号:1页码:20-27 |
| 关键词 | adsorption regeneration Acid Red B MnFe2O4 magnetic separation |
| 英文摘要 | Magnetic ferrite material, MnFe2O4, as a novel adsorbent was prepared and characterized. Adsorption tests indicated that it is an excellent adsorbent for the removal of the azo dye Acid Red B (ARB) from water. After adsorbing ARB and recovery by the magnetic separation method, it can be regenerated by Fenton's reagent. The pseudo-first-order and second-order kinetic models were used to describe the kinetic data and the rate constants were evaluated. The adsorption capacity was highly affected by the pH of the solution, and pH 3.8 was optimal. After regeneration, the adsorption capacity of MnFe2O4 increased significantly, which was the result of a decrease in average pore diameter, an increase in surface area of the adsorbent and the adsorption of ferric hydroxide produced in the regeneration reaction. The adsorption can be described with the Langmuir model and the maximum adsorption capacity for ARB was 53.8 mg g(-1) adsorbent. FTIR study for ARB on MnFe2O4 indicated that the adsorption of ARB occurred via the azo group and the sulfonic group of the dye through the formation of a complex with the adsorbent surface. (C) 2004 Society of Chemical Industry. |
| 学科主题 | Biotechnology & Applied Microbiology; Chemistry; Engineering |
| 研究领域[WOS] | Biotechnology & Applied Microbiology ; Chemistry ; Engineering |
| WOS记录号 | WOS:000226040600004 |
| 源URL | [http://ir.rcees.ac.cn/handle/311016/23313]  |
| 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 | Wu, RC,Qu, JH. Removal of water-soluble azo dye by the magnetic material MnFe2O4[J]. JOURNAL OF CHEMICAL TECHNOLOGY AND BIOTECHNOLOGY,2005,80(1):20-27. |
| APA | Wu, RC,&Qu, JH.(2005).Removal of water-soluble azo dye by the magnetic material MnFe2O4.JOURNAL OF CHEMICAL TECHNOLOGY AND BIOTECHNOLOGY,80(1),20-27. |
| MLA | Wu, RC,et al."Removal of water-soluble azo dye by the magnetic material MnFe2O4".JOURNAL OF CHEMICAL TECHNOLOGY AND BIOTECHNOLOGY 80.1(2005):20-27. |
入库方式： OAI收割
来源：生态环境研究中心
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