Phosphorus recovery by core-shell gamma-Al2O3/Fe3O4 biochar composite from aqueous phosphate solutions
文献类型：期刊论文
| 作者 | Cui, Qingliang2,3,4; Xu, Jinling1; Wang, Wei5 ; Tan, Lianshuai4; Cui, Yongxing2,3; Wang, Tongtong4; Li, Gaoliang2,3; She, Diao3,4; Zheng, Jiyong3,4
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| 刊名 | SCIENCE OF THE TOTAL ENVIRONMENT
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| 出版日期 | 2020-08-10 |
| 卷号 | 729页码:10 |
| ISSN号 | 0048-9697 |
| 关键词 | Phosphorus recovery gamma-Al2O3/Fe3O4 biochar Core-shell structure Adsorption mechanisms Reusability |
| DOI | 10.1016/j.scitotenv.2020.138892 |
| 通讯作者 | Zheng, Jiyong(zhjy@ms.iswc.ac.cn) |
| 英文摘要 | Biochar can act as an adsorbent for phosphate removal from water sources, which can be highly beneficial in limiting eutrophication and recycling elemental phosphorus (P). However, it is difficult to use a single biochar material to overcome problems such as low adsorption efficiency, difficulty in reuse, and secondary pollution. This study addresses these challenges using a novel core-shell structure gamma-Al2O3/Fe3O4 biochar adsorbent (AFBC) with significant P uptake capabilities in terms of its high adsorption capacity (205.7 mg g(-1)), magnetic properties (saturation magnetization 24.70 emu g(-1)), and high reuse stability (91.0% removal efficiency after five adsorption-desorption cycles). The highest partition coefficient 1.04 mg g(-1) mu M-1, was obtained at a concentration of 322.89 mu M. Furthermore, AFBC exhibited strong regeneration ability in multiple cycle trials, making it extremely viable for sustainable resource management. P removal mechanisms, i.e., electrostatic attraction and inner-sphere complexation, were explained using Fourier transform infrared (FT-IR) spectra and X-ray photoelectron spectroscopy (XPS) measurements. A surface complexation model was established by considering the formation of monodentate mononuclear and bidentate binuclear surface complexes of P to illustrate the adsorption process. Owing to its high adsorption efficiency, easy separation from water, and environmental friendliness, AFBC is a potential adsorbent for P recovery from polluted waters. (C) 2020 Elsevier B.V. All rights reserved. |
| WOS关键词 | MAGNETIC BIOCHAR ; FLUORIDE REMOVAL ; ORGANIC-MATTER ; WASTE-WATER ; ADSORPTION ; CARBON ; HYDROXIDE ; SURFACE ; PERFORMANCE ; EFFICIENT |
| 资助项目 | National Natural Science Foundation of China[41571225] ; National Key Research and Development of China[2016YFC0501702] ; National Key Research and Development of China[2017YFC0504504] ; Science and Technology Service Network Initiative of the Chinese Academy of Sciences[KFJ-STS-QYZD-177] |
| WOS研究方向 | Environmental Sciences & Ecology |
| 语种 | 英语 |
| 出版者 | ELSEVIER |
| WOS记录号 | WOS:000537434100015 |
| 资助机构 | National Natural Science Foundation of China ; National Key Research and Development of China ; Science and Technology Service Network Initiative of the Chinese Academy of Sciences |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/159462]  |
| 专题 | 中国科学院地理科学与资源研究所 |
| 通讯作者 | Zheng, Jiyong |
| 作者单位 | 1.Shandong Normal Univ, Coll Geog & Environm, Jinan 250014, Shandong, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Chinese Acad Sci & Minist Water Resources, Inst Soil & Water Conservat, State Key Lab Soil Eros & Dryland Farming Loess P, Yangling 712100, Shaanxi, Peoples R China 4.Northwest A&F Univ, State Key Lab Soil Eros & Dryland Farming Loess P, Yangling 712100, Shaanxi, Peoples R China 5.Ningxia Agr Dev Ctr, Yinchuan 750000, Ningxia, Peoples R China |
| 推荐引用方式 GB/T 7714 | Cui, Qingliang,Xu, Jinling,Wang, Wei,et al. Phosphorus recovery by core-shell gamma-Al2O3/Fe3O4 biochar composite from aqueous phosphate solutions[J]. SCIENCE OF THE TOTAL ENVIRONMENT,2020,729:10. |
| APA | Cui, Qingliang.,Xu, Jinling.,Wang, Wei.,Tan, Lianshuai.,Cui, Yongxing.,...&Zheng, Jiyong.(2020).Phosphorus recovery by core-shell gamma-Al2O3/Fe3O4 biochar composite from aqueous phosphate solutions.SCIENCE OF THE TOTAL ENVIRONMENT,729,10. |
| MLA | Cui, Qingliang,et al."Phosphorus recovery by core-shell gamma-Al2O3/Fe3O4 biochar composite from aqueous phosphate solutions".SCIENCE OF THE TOTAL ENVIRONMENT 729(2020):10. |
入库方式： OAI收割
来源：地理科学与资源研究所
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