| Assessing the effect of pyrolysis temperature on the molecular properties and copper sorption capacity of a halophyte biochar | |
Wei, J ; Tu, C; Yuan, GD; Liu, Y; Bi, DX; Xiao, L; Lu, J; Theng, BKG; Wang, HL; Zhang, LJ; Zhang, XZ
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| 发表期刊 | ENVIRONMENTAL POLLUTION
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| ISSN | 0269-7491 |
| 2019-08 | |
| 卷号 | 251页码:56-65 |
| 关键词 | Halophyte biochar Copper Pyrolysis temperature Functional groups Sorption mechanism |
| 研究领域 | Environmental Sciences |
| DOI | 10.1016/j.envpol.2019.04.128 |
| 产权排序 | [Wei, Jing; Tu, Chen; Liu, Ying; Bi, Dongxue; Xiao, Liang; Lu, Jian] Chinese Acad Sci, Yantai Inst Coastal Zone Res, Key Lab Coastal Environm Proc & Ecol Remediat, Yantai 264003, Peoples R China; [Yuan, Guodong] Zhaoqing Univ, Sch Environm & Chem Engn, Zhaoqing 526061, Peoples R China; [Theng, Benny K. G.] Manaaki Whenua Landcare Res, Private Bag 11052, Palmerston North 4442, New Zealand; [Wang, Hailong] Foshan Univ, Sch Environm & Chem Engn, Foshan 528000, Peoples R China; [Zhang, Lijuan; Zhang, Xiangzhi] Chinese Acad Sci, Shanghai Adv Res Inst, Shanghai Synchrotron Radiat Facil, Shanghai 201204, Peoples R China |
| 通讯作者 | Yuan, Guodong(yuanguodong@zqu.edu.cn) |
| 作者部门 | 海岸带环境过程实验室 |
| 英文摘要 | The capacity of biochar to take up heavy metals from contaminated soil and water is influenced by the pyrolysis temperature. We have prepared three biochar samples from Jerusalem artichoke stalks (JAS) by pyrolysis at 300, 500 and 700 degrees C, denoted as JAS300, JAS500, and JAS700, respectively. A variety of synchrotron-based techniques were used to assess the effect of pyrolysis temperature on the molecular properties and copper (Cu) sorption capacity of the samples. The content of oxygen-containing functional groups in the biochar samples decreased, while that of aromatic structures and alkaline mineral components increased, with a rise in pyrolysis temperature. Scanning transmission X-ray microscopy indicated that sorbed Cu(II) was partially reduced to Cu(I), but this process was more evident with JAS300 and JAS700 than with JAS500. Carbon K-edge X-ray absorption near edge structure spectroscopy indicated that Cu(II) cations were sorbed to biochar via complexation and Cu-pi bonding. With rising pyrolysis temperature, Cu(II)-complexation weakened while Cu-pi bonding was enhanced. In addition, the relatively high ash content and pH of JAS500 and JAS700 facilitated Cu precipitation and the formation of langite on the surface of biochar. The results of this investigation will aid the conversion of halophyte waste to useable biochar for the effective remediation of Cu-contaminated soil and water. (C) 2019 Elsevier Ltd. All rights reserved. |
| 文章类型 | Article |
| 资助机构 | National Natural Science Foundation of ChinaNational Natural Science Foundation of China [41501522, 41571310] ; Chinese National Key Research and Development Program [2016YFD0200303, 2016YFE0106400] ; One Hundred Talents Program of Chinese Academy of SciencesChinese Academy of Sciences [Y629041021] |
| 收录类别 | SCI |
| 语种 | 英语 |
| 关键词[WOS] | REMOVAL ; MECHANISMS ; ADSORPTION ; SOIL ; WATER ; ENVIRONMENTS ; CONTAMINANTS ; SPECIATION ; BIOMASS ; CU(II) |
| 研究领域[WOS] | Environmental Sciences |
| WOS记录号 | WOS:000474329700007 |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://ir.yic.ac.cn/handle/133337/24895 |
| 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 中国科学院海岸带环境过程与生态修复重点实验室 |
| 作者单位 | 1.Chinese Acad Sci, Yantai Inst Coastal Zone Res, Key Lab Coastal Environm Proc & Ecol Remediat, Yantai 264003, Peoples R China; 2.Zhaoqing Univ, Sch Environm & Chem Engn, Zhaoqing 526061, Peoples R China; 3.Manaaki Whenua Landcare Res, Private Bag 11052, Palmerston North 4442, New Zealand; 4.Foshan Univ, Sch Environm & Chem Engn, Foshan 528000, Peoples R China; 5.Chinese Acad Sci, Shanghai Adv Res Inst, Shanghai Synchrotron Radiat Facil, Shanghai 201204, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wei, J,Tu, C,Yuan, GD,et al. Assessing the effect of pyrolysis temperature on the molecular properties and copper sorption capacity of a halophyte biochar[J]. ENVIRONMENTAL POLLUTION,2019,251:56-65. |
| APA | Wei, J.,Tu, C.,Yuan, GD.,Liu, Y.,Bi, DX.,...&Zhang, XZ.(2019).Assessing the effect of pyrolysis temperature on the molecular properties and copper sorption capacity of a halophyte biochar.ENVIRONMENTAL POLLUTION,251,56-65. |
| MLA | Wei, J,et al."Assessing the effect of pyrolysis temperature on the molecular properties and copper sorption capacity of a halophyte biochar".ENVIRONMENTAL POLLUTION 251(2019):56-65. |
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