Adsorption study of selenium ions from aqueous solutions using MgO nanosheets synthesized by ultrasonic method | |
Cui, Wenwen1,2; Li, Ping1; Wang, Zheming3; Zheng, Shili1; Zhang, Yi1 | |
刊名 | JOURNAL OF HAZARDOUS MATERIALS |
2018-01-05 | |
卷号 | 341页码:268-276 |
关键词 | Mgo Nanosheets Ultrasonic Exfoliation Adsorption Selenite(Se(Iv)) Selenate (Se(Vi)) |
ISSN号 | 0304-3894 |
DOI | 10.1016/j.jhazmat.2017.07.073 |
文献子类 | Article |
英文摘要 | MgO nanosheets with thickness ranges of 3-10 molecule layers and high specific area (166.44 m(2) g(-1)) were successfully fabricated by an ultrasound-assisted exfoliation method and used as adsorbent for the removal of both selenite (Se(IV)) and selenate (Se(VI)) from aqueous solutions. The resulting MgO nanosheets displayed high maximum adsorption capacities of 103.52 and 10.28 mg g(-1) for Se(IV) and Se(VI), respectively. ATR-FTIR and XPS spectroscopic results suggested that both Se(IV) and Se(VI) formed inner-sphere surface complexes on MgO nanosheets under the present experimental conditions. Furthermore, high adsorption capacity for Se(IV/VI) in the presence of coexistent anions (SO42-, PO43-, Cl-, and F-) and efficient regeneratability of adsorbent by NaOH solution were observed in the competitive adsorption and regeneration steps. The simple one-step synthesis process of MgO nanosheets and high adsorption capacities offer a promising method for Se(IV/VI) removal in water treatment. (C) 2017 Elsevier B.V. All rights reserved. |
WOS关键词 | Iron-oxides ; Different Morphologies ; Surface-area ; Removal ; Selenate ; Mechanism ; Water ; Exfoliation ; Magnesium ; Capacity |
WOS研究方向 | Engineering ; Environmental Sciences & Ecology |
语种 | 英语 |
WOS记录号 | WOS:000412378700029 |
资助机构 | National Natural Science Foundation of China(51574212 ; U1403195) |
内容类型 | 期刊论文 |
源URL | [http://ir.ipe.ac.cn/handle/122111/23265] |
专题 | 过程工程研究所_湿法冶金清洁生产技术国家工程实验室 |
作者单位 | 1.Chinese Acad Sci, Inst Proc Engn, Natl Engn Lab Hydromet Cleaner Prod Technol, Key Lab Green Proc & Engn, 1 North 2nd St, Beijing 100190, Peoples R China 2.Univ Chinese Acad Sci, 19A Yuquan Rd, Beijing 100049, Peoples R China 3.Pacific Northwest Natl Lab, Phys & Computat Sci Directorate, Richland, WA 99354 USA |
推荐引用方式 GB/T 7714 | Cui, Wenwen,Li, Ping,Wang, Zheming,et al. Adsorption study of selenium ions from aqueous solutions using MgO nanosheets synthesized by ultrasonic method[J]. JOURNAL OF HAZARDOUS MATERIALS,2018,341:268-276. |
APA | Cui, Wenwen,Li, Ping,Wang, Zheming,Zheng, Shili,&Zhang, Yi.(2018).Adsorption study of selenium ions from aqueous solutions using MgO nanosheets synthesized by ultrasonic method.JOURNAL OF HAZARDOUS MATERIALS,341,268-276. |
MLA | Cui, Wenwen,et al."Adsorption study of selenium ions from aqueous solutions using MgO nanosheets synthesized by ultrasonic method".JOURNAL OF HAZARDOUS MATERIALS 341(2018):268-276. |
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