| Efficient removal of copper and lead from aqueous solution by magnetic biochar: Magnetization, adsorption, separation, and desorption | |
Zhou, Zhifang1,2 ; Zhao, Baiping3; Zhang, Youxian2; Sun, Hanxue1; Chen, Jixiang1; Huang, Tao2
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| 2019-10 | |
| 发表期刊 | DESALINATION AND WATER TREATMENT
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| ISSN | 1944-3994 |
| 卷号 | 166页码:24-34 |
| 摘要 | Efficient removal of heavy-metal ions from water is of great importance for addressing the issue of environmental pollution. In this work, a novel magnetic biochar was fabricated by loading Fe3O4 on straw-oriented biochar (Fe3O4@BIO) through co-precipitation method. The preparation conditions were optimized, and the best Fe3O4@BIO synthesis was at BIO/Fe3O4 weight ratio of 5:1 to 3:1. The synthesis led to higher surface area and higher adsorption capacity for Cu2+ (143.2 mg/g) but relatively low capacity for Pb2+ (463.8 mg/g) as compared with non-magnetic biochar (56.1 and 665.4 mg/g, respectively). This means that different mechanisms dominated the adsorption processes for Cu2+ and Pb2+. After four times of regeneration and reuse, the adsorption capacity retained 60%-70% of the level in the initial situation. Overall, our magnetic biochars are considered suitable for use in wastewater treatment processes because of their excellent heavy-metal adsorption ability and easy recovery after use. |
| 关键词 | Magnetic biochar Adsorption Copper(II) Lead(II) |
| DOI | 10.5004/dwt.2019.24586 |
| 收录类别 | SCI ; SCIE |
| 语种 | 英语 |
| 资助项目 | Youth Science and Technology Foundation of Gansu Province, China[41503089] ; Youth Science and Technology Foundation of Gansu Province, China[1606RJYA298] |
| WOS研究方向 | Engineering ; Water Resources |
| WOS类目 | Engineering, Chemical ; Water Resources |
| WOS记录号 | WOS:000489318500003 |
| 出版者 | DESALINATION PUBL |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | https://ir.lut.edu.cn/handle/2XXMBERH/31538 |
| 专题 | 石油化工学院 |
| 通讯作者 | Zhang, Youxian |
| 作者单位 | 1.Lanzhou Univ Technol, Coll Petrochem Technol, Lanzhou 730050, Gansu, Peoples R China; 2.Lanzhou Univ, Coll Earth & Environm Sci, Key Lab Environm Pollut Predict & Control, Lanzhou 730000, Gansu, Peoples R China; 3.Lanzhou Construct Engn Explorat & Design Co LTD, Lanzhou 730000, Gansu, Peoples R China |
| 第一作者单位 | 石油化工学院 |
| 第一作者的第一单位 | 石油化工学院 |
| 推荐引用方式 GB/T 7714 | Zhou, Zhifang,Zhao, Baiping,Zhang, Youxian,et al. Efficient removal of copper and lead from aqueous solution by magnetic biochar: Magnetization, adsorption, separation, and desorption[J]. DESALINATION AND WATER TREATMENT,2019,166:24-34. |
| APA | Zhou, Zhifang,Zhao, Baiping,Zhang, Youxian,Sun, Hanxue,Chen, Jixiang,&Huang, Tao.(2019).Efficient removal of copper and lead from aqueous solution by magnetic biochar: Magnetization, adsorption, separation, and desorption.DESALINATION AND WATER TREATMENT,166,24-34. |
| MLA | Zhou, Zhifang,et al."Efficient removal of copper and lead from aqueous solution by magnetic biochar: Magnetization, adsorption, separation, and desorption".DESALINATION AND WATER TREATMENT 166(2019):24-34. |
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| Zhou-2019-Efficient （43KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | 浏览 下载 | |
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