| Facile synthesis, characterization of a MnFe2O4/activated carbon magnetic composite and its effectiveness in tetracycline removal | |
Shao, Lina1,2; Ren, Zongming1; Zhang, Gaosheng1 ; Chen, Linlin1
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| 发表期刊 | MATERIALS CHEMISTRY AND PHYSICS
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| 2012-07-16 | |
| 卷号 | 135期号:1页码:16-24 |
| 关键词 | Activated Carbon Magnetic Composite Tetracycline Magnetic Separation Adsorption |
| 产权排序 | [Shao, Lina; Ren, Zongming; Zhang, Gaosheng; Chen, Linlin] Chinese Acad Sci, Yantai Inst Coastal Zone Res, Key Lab Coastal Environm Proc, Yantai 264003, Peoples R China; [Shao, Lina] Lanzhou Jiaotong Univ, Sch Environm & Municipal Engn, Lanzhou 730070, Peoples R China |
| 通讯作者 | Zhang, GS (reprint author), Chinese Acad Sci, Yantai Inst Coastal Zone Res, Key Lab Coastal Environm Proc, Yantai 264003, Peoples R China.,gszhang@yic.ac.cn |
| 英文摘要 | In this study, MnFe2O4/activated carbon magnetic composites with mass ratio of 1:1. 1:1.5 and 1:2 were synthesized using a simple chemical coprecipitation procedure. A variety of techniques such as X-ray diffractometer, scanning electron microscope, magnetization measurements, BET surface area measurements were used to characterize the structure, morphology and magnetic performance of the prepared composite adsorbents. The results showed that the composites had good magnetic properties, which allowed their convenient magnetic separation from water. Spinel manganese ferrite was found to occur in the magnetic phase and the presence of magnetic particles of MnFe2O4 did not significantly affect the surface area and pore structure of the activated carbon. The magnetic composites were effective for tetracycline (TC) removal from water and the maximal adsorption capacity was 590.5 mmol kg(-1) at pH 5.0. The TC adsorption followed pseudo-second-order kinetic model and its removal decreases gradually with an increase in pH value, whereas the removal rate was over 60% even at pH 9.0. The TC adsorption process is endothermic and the increase of temperature is favoring its removal. All these results indicated that the prepared composites had the potential to be used as adsorbents for the removal of TC from water or wastewater. (C) 2012 Elsevier B.V. All rights reserved.; In this study, MnFe2O4/activated carbon magnetic composites with mass ratio of 1:1. 1:1.5 and 1:2 were synthesized using a simple chemical coprecipitation procedure. A variety of techniques such as X-ray diffractometer, scanning electron microscope, magnetization measurements, BET surface area measurements were used to characterize the structure, morphology and magnetic performance of the prepared composite adsorbents. The results showed that the composites had good magnetic properties, which allowed their convenient magnetic separation from water. Spinel manganese ferrite was found to occur in the magnetic phase and the presence of magnetic particles of MnFe2O4 did not significantly affect the surface area and pore structure of the activated carbon. The magnetic composites were effective for tetracycline (TC) removal from water and the maximal adsorption capacity was 590.5 mmol kg(-1) at pH 5.0. The TC adsorption followed pseudo-second-order kinetic model and its removal decreases gradually with an increase in pH value, whereas the removal rate was over 60% even at pH 9.0. The TC adsorption process is endothermic and the increase of temperature is favoring its removal. All these results indicated that the prepared composites had the potential to be used as adsorbents for the removal of TC from water or wastewater. (C) 2012 Elsevier B.V. All rights reserved. |
| 文章类型 | Article |
| 资助机构 | National Natural Science Foundation of China[20807035]; Chinese Academy of Sciences[KZCX2-YW-Q07-04]; Yantai Coastal Zone Research Insititue[HK0810AC-046] |
| 收录类别 | SCI |
| 语种 | 英语 |
| 关键词[WOS] | ACTIVATED CARBON ; WATER ; ANTIBIOTICS ; ADSORPTION ; SORPTION ; MNFE2O4 ; OXYTETRACYCLINE ; THERMODYNAMICS ; NANOCOMPOSITE ; REGENERATION |
| 研究领域[WOS] | Materials Science |
| WOS记录号 | WOS:000306034500004 |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://ir.yic.ac.cn/handle/133337/5679 |
| 专题 | 中国科学院海岸带环境过程与生态修复重点实验室_海岸带环境过程实验室 |
| 作者单位 | 1.Chinese Acad Sci, Yantai Inst Coastal Zone Res, Key Lab Coastal Environm Proc, Yantai 264003, Peoples R China 2.Lanzhou Jiaotong Univ, Sch Environm & Municipal Engn, Lanzhou 730070, Peoples R China |
| 推荐引用方式 GB/T 7714 | Shao, Lina,Ren, Zongming,Zhang, Gaosheng,et al. Facile synthesis, characterization of a MnFe2O4/activated carbon magnetic composite and its effectiveness in tetracycline removal[J]. MATERIALS CHEMISTRY AND PHYSICS,2012,135(1):16-24. |
| APA | Shao, Lina,Ren, Zongming,Zhang, Gaosheng,&Chen, Linlin.(2012).Facile synthesis, characterization of a MnFe2O4/activated carbon magnetic composite and its effectiveness in tetracycline removal.MATERIALS CHEMISTRY AND PHYSICS,135(1),16-24. |
| MLA | Shao, Lina,et al."Facile synthesis, characterization of a MnFe2O4/activated carbon magnetic composite and its effectiveness in tetracycline removal".MATERIALS CHEMISTRY AND PHYSICS 135.1(2012):16-24. |
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