Insights into adsorption mechanism for fluoride on cactus-like amorphous alumina oxide microspheres
文献类型：期刊论文
| 作者 | Kang, Dongjuan1,2; Yu, Xiaolin2,3; Ge, Maofa2,3,4; Lin, Mengya2,3; Yang, Xueqin2,3; Jing, Yuanyuan2 |
| 刊名 | CHEMICAL ENGINEERING JOURNAL
 |
| 出版日期 | 2018-08-01 |
| 卷号 | 345页码:252-259 |
| 关键词 | Fluoride Amorphous Alumina Adsorption Mechanism |
| ISSN号 | 1385-8947 |
| DOI | 10.1016/j.cej.2018.03.174 |
| 英文摘要 | Cactus-like amorphous alumina microspheres (CA-AlOx) were fabricated by a facile solvothermal method without templates. The as-prepared CA-AlOx material exhibited the amorphous structure which is beneficial to the large specific surface area, developed pore structure, abundant functional groups and high reactivity of coordinatively unsaturated Al species. The maximum adsorption capacity of CA-AlOx was calculated to be 129.4 mg/g for fluoride, which was higher than that of many adsorbents reported. Moreover, the CA-AlOx exhibited fast adsorption rate, high interference resistance and good reusable ability. Adsorption mechanism and relationship between amorphous structure and adsorption performance for fluoride on the CA-AlOx were investigated systematically by various characterization techniques. The adsorption mechanism of fluoride on the CA-AlOx was mainly through the chemical coordination of unsaturated Al-species AlO4 and AlO5 by fluoride ions to form the AlF3 and [AlF6](3-) species by XPS and NMR analysis. Also, ion exchange, electrostatic adsorption and pore filling were also involved in the adsorption process. These results suggested that the CA-AlOx has great application potential for deep purification of fluoride-contaminated drinking water. |
| 语种 | 英语 |
| WOS记录号 | WOS:000430696500026 |
| 出版者 | ELSEVIER SCIENCE SA |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/43123]  |
| 专题 | 中国科学院化学研究所 |
| 通讯作者 | Yu, Xiaolin; Ge, Maofa |
| 作者单位 | 1.Chinese Acad Sci, Inst Proc Engn, State Key Lab Multiphase Complex Syst, Beijing 100190, Peoples R China 2.Chinese Acad Sci, Inst Chem, CAS Res Educ Ctr Excellence Mol Sci, State Key Lab Struct Chem Unstable & Stable Speci, Beijing 100190, Peoples R China 3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 4.Chinese Acad Sci, Inst Urban Environm, Ctr Excellence Reg Atmospher Environm, Xiamen 361021, Peoples R China |
| 推荐引用方式 GB/T 7714 | Kang, Dongjuan,Yu, Xiaolin,Ge, Maofa,et al. Insights into adsorption mechanism for fluoride on cactus-like amorphous alumina oxide microspheres[J]. CHEMICAL ENGINEERING JOURNAL,2018,345:252-259. |
| APA | Kang, Dongjuan,Yu, Xiaolin,Ge, Maofa,Lin, Mengya,Yang, Xueqin,&Jing, Yuanyuan.(2018).Insights into adsorption mechanism for fluoride on cactus-like amorphous alumina oxide microspheres.CHEMICAL ENGINEERING JOURNAL,345,252-259. |
| MLA | Kang, Dongjuan,et al."Insights into adsorption mechanism for fluoride on cactus-like amorphous alumina oxide microspheres".CHEMICAL ENGINEERING JOURNAL 345(2018):252-259. |
入库方式： OAI收割
来源：化学研究所
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