| 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
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| 2018-01-05 | |
| Source Publication | JOURNAL OF HAZARDOUS MATERIALS
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| ISSN | 0304-3894 |
| Volume | 341Pages:268-276 |
| Abstract | 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. |
| Keyword | Mgo Nanosheets Ultrasonic Exfoliation Adsorption Selenite(Se(Iv)) Selenate (Se(Vi)) |
| Subtype | Article |
| WOS Headings | Science & Technology ; Technology ; Life Sciences & Biomedicine |
| DOI | 10.1016/j.jhazmat.2017.07.073 |
| Indexed By | SCI |
| Language | 英语 |
| WOS Keyword | IRON-OXIDES ; DIFFERENT MORPHOLOGIES ; SURFACE-AREA ; REMOVAL ; SELENATE ; MECHANISM ; WATER ; EXFOLIATION ; MAGNESIUM ; CAPACITY |
| WOS Research Area | Engineering ; Environmental Sciences & Ecology |
| WOS Subject | Engineering, Environmental ; Environmental Sciences |
| Funding Organization | National Natural Science Foundation of China(51574212 ; U1403195) |
| WOS ID | WOS:000412378700029 |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.ipe.ac.cn/handle/122111/23265 |
| Collection | 湿法冶金清洁生产技术国家工程实验室 |
| Affiliation | 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 |
| Recommended Citation 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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