Engineered phosphorous-functionalized biochar with enhanced porosity using phytic acid-assisted ball milling for efficient and selective uptake of aquatic uranium
文献类型：期刊论文
| 作者 | Zhou, Yuanbiao1,3; Xiao, Jiang2; Hu, Rui1,3; Wang, Tianhui1,3; Shao, Xuelian1,3; Chen, Guangcai2; Chen, Lin1,3; Tian, Xingyou1,3
|
| 刊名 | JOURNAL OF MOLECULAR LIQUIDS
 |
| 出版日期 | 2020-04-01 |
| 卷号 | 303 |
| 关键词 | Phosphorous surface modification Ball-milling treatment Enhanced pore structure Selective U(VI) extraction |
| ISSN号 | 0167-7322 |
| DOI | 10.1016/j.molliq.2020.112659 |
| 通讯作者 | Hu, Rui(ruihu@rntek.cas.cn) ; Tian, Xingyou(xytian@issp.ac.cn) |
| 英文摘要 | The efficient extraction of uranium is challenging for radioactive wastewater treatment. Concerning to the specific coordination of functional groups with radionuclides, the development of ideal sorbents with high surface area, enhanced porosity and abundant functional groups compatibly to uptake uranium selectively is of great significance. Biochar, an attractive material to concentration aquatic targets, exhibits a positive correlation of surface area and pore volume of biochars with pyrolysis temperature, whereas a negative relation of surface functionality with thermolysis temperature. Here we applied a facile and environmental-friendly ball-milling technique to engineer raw biochars in the presence of phytic acid. Ball-milling treatment increased the external surface area of biochars by reducing grain sizes, as well as enhanced the micropore surface area by exposing blocked micropore networks. P-containing moiety was grafted to the surface of biochar matrix successfully. The physicochemical characteristics of biochars enabled a high uptake capacity (128.5 mg/g) and favorable selectivity of U(VI). It suggested that ball-milling of raw biochars with activating solvents could achieve an excellent performance for the efficient concentration of aquatic uranium. (C) 2020 Elsevier B.V. All rights reserved. |
| WOS关键词 | MILLED BIOCHAR ; REMOVAL ; RECOVERY ; CARBON ; ADSORPTION ; WASTE ; OXIDE ; COMPOSITES ; SORPTION ; WATER |
| 资助项目 | CAS Pioneer Hundred Talents Program ; CASHIPS Director's Fund, China[YZJJ2018QN20] ; National Natural Science Foundation of China[21875257] ; China Postdoctoral Science Foundation[2018M640200] ; China Postdoctoral Science Foundation[2019T120154] |
| WOS研究方向 | Chemistry ; Physics |
| 语种 | 英语 |
| WOS记录号 | WOS:000533612700042 |
| 出版者 | ELSEVIER |
| 资助机构 | CAS Pioneer Hundred Talents Program ; CASHIPS Director's Fund, China ; National Natural Science Foundation of China ; China Postdoctoral Science Foundation |
| 源URL | [http://ir.hfcas.ac.cn:8080/handle/334002/103311]  |
| 专题 | 中国科学院合肥物质科学研究院 |
| 通讯作者 | Hu, Rui; Tian, Xingyou |
| 作者单位 | 1.Chinese Acad Sci, Inst Appl Technol, Hefei Inst Phys Sci, Hefei 230088, Peoples R China 2.Chinese Acad Forestry, Res Inst Subtrop Forestry, Hangzhou 311400, Zhejiang, Peoples R China 3.Chinese Acad Sci, CAS Key Lab Photovolta & Energy Conservat Mat, Hefei 230031, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhou, Yuanbiao,Xiao, Jiang,Hu, Rui,et al. Engineered phosphorous-functionalized biochar with enhanced porosity using phytic acid-assisted ball milling for efficient and selective uptake of aquatic uranium[J]. JOURNAL OF MOLECULAR LIQUIDS,2020,303. |
| APA | Zhou, Yuanbiao.,Xiao, Jiang.,Hu, Rui.,Wang, Tianhui.,Shao, Xuelian.,...&Tian, Xingyou.(2020).Engineered phosphorous-functionalized biochar with enhanced porosity using phytic acid-assisted ball milling for efficient and selective uptake of aquatic uranium.JOURNAL OF MOLECULAR LIQUIDS,303. |
| MLA | Zhou, Yuanbiao,et al."Engineered phosphorous-functionalized biochar with enhanced porosity using phytic acid-assisted ball milling for efficient and selective uptake of aquatic uranium".JOURNAL OF MOLECULAR LIQUIDS 303(2020). |
入库方式： OAI收割
来源：合肥物质科学研究院
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。