Potential in treating arsenic-contaminated water of the biochars produced from hyperaccumulator Pteris vittata and its environmental safety
文献类型：期刊论文
| 作者 | Wang, Yuluo1,2; Zeng, Weibin1,2; Wan, Xiaoming1,2; Lei, Mei1,2; Chen, Tongbin1,2 |
| 刊名 | ENVIRONMENTAL POLLUTION
 |
| 出版日期 | 2024-09-01 |
| 卷号 | 356页码:124320 |
| 关键词 | Arsenic adsorption Iron-modified biochar Isotherms Kinetics Post-harvest |
| DOI | 10.1016/j.envpol.2024.124320 |
| 产权排序 | 1 |
| 文献子类 | Article |
| 英文摘要 | In this study, biochar derived from pyrolyzed aboveground parts of Pteris vittata ( P. vittata ) was modified with iron(Fe) and applied to aqueous solutions containing arsenite (As[III]) or arsenate (As[V]) for remediation purposes. The adsorption efficiency, biochar characteristics pre- and post -adsorption, microscopic As distribution, and As morphology were analyzed. Additionally, the potential and leaching safety of P. vittata biochar for As-contaminated water remediation were evaluated. Results indicated that P. vittata biochar contained oxygencontaining functional groups and aromatic structures. Modification with Fe increased specific surface area and total pore volume. Unmodified P. vittata biochar displayed low adsorption of As(III) and As(V), while Fe modification significantly enhanced As adsorption capacity and reduced As leaching by 69% -89%. Maximum adsorption capacities of Fe-modified P. vittata biochar for As(III) and As(V) were 7.64 and 10.2 mg/g, respectively, as determined by Langmuir fitting. The superior adsorption efficiency of As(V) over As(III) by Fe-modified biochar was attributed to better electrostatic interaction with the adsorbent. Analysis revealed similar As species in P. vittata biochar before and after adsorption, with a significant presence of As(III). Remarkably, As in P. vittata remained highly stable during pyrolysis and adsorption, possibly due to strong Fe -As binding. Fe-modified P. vittata biochar shows promise for application, but further pretreatment may be necessary to achieve optimal results. |
| WOS关键词 | REMOVAL |
| WOS研究方向 | Environmental Sciences & Ecology |
| WOS记录号 | WOS:001251987400001 |
| 出版者 | ELSEVIER SCI LTD |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/205269]  |
| 专题 | 资源利用与环境修复重点实验室_外文论文 |
| 通讯作者 | Wan, Xiaoming |
| 作者单位 | 1.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 2.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Beijing 100101, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wang, Yuluo,Zeng, Weibin,Wan, Xiaoming,et al. Potential in treating arsenic-contaminated water of the biochars produced from hyperaccumulator Pteris vittata and its environmental safety[J]. ENVIRONMENTAL POLLUTION,2024,356:124320. |
| APA | Wang, Yuluo,Zeng, Weibin,Wan, Xiaoming,Lei, Mei,&Chen, Tongbin.(2024).Potential in treating arsenic-contaminated water of the biochars produced from hyperaccumulator Pteris vittata and its environmental safety.ENVIRONMENTAL POLLUTION,356,124320. |
| MLA | Wang, Yuluo,et al."Potential in treating arsenic-contaminated water of the biochars produced from hyperaccumulator Pteris vittata and its environmental safety".ENVIRONMENTAL POLLUTION 356(2024):124320. |
入库方式： OAI收割
来源：地理科学与资源研究所
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