| Amino group functionalized SiO2@graphene oxide for efficient removal of Cu(II) from aqueous solutions | |
| Li, Min1; Feng, Jian1; Huang, Kun2; Tang, Si1; Liu, Ruihua3; Li, Huan1; Ma, Fuye1; Meng, Xiaojing1 | |
| Corresponding Author | Li, Min(limin1406@163.com) ; Meng, Xiaojing(mengxiaojing88@126.com) |
| 2019-05-01 | |
| Source Publication | CHEMICAL ENGINEERING RESEARCH & DESIGN
 |
| ISSN | 0263-8762 |
| Volume | 145Pages:235-244 |
| Abstract | Herein, we report the synthesis and enhanced Cu(II) ions sorption performance of SiO2@GO-NH2 by an easy, cost-effective and efficient synthesis protocol. Various characterization techniques are employed to study the structure, morphology, chemical composition and porous nature of as-synthesis SiO2@GO-NH2 nanocomposite. Mechanistic insight into the adsorption process has been provided by using pseudo-second-order and Langmuir model. The maximum adsorption capacity of 105.4 mg g(-1) has been attained at 308 K according to Langmuir model and the adsorption equilibrium has been attained within 35 min. The results reveal that as-synthesized SiO2@GO-NH2 possesses fast adsorption kinetics. For the first time, the adsorption mechanism of Cu(II) ions has been explained by using ex-situ post sorption characterization of Cu(II)-loaded SiO(2)OGO-NH2. A series of experiments suggested that the Cu(II) ions are adsorbed on the SiO2@GO-NH2 surface by forming covalent bonds with available functional groups (-NH2 and-NH-). In other words, the adsorption process in SiO2@GO-NH2 is a chemical sorption process. These findings indicate that SiO2@GO-NH2 can be served as a promising sorbent for the efficient recovery and cost-effective elimination of Cu(II) ions from wastewater. (C) 2019 Institution of Chemical Engineers. Published by Elsevier B.V. All rights reserved. |
| Keyword | Graphene oxide Silica gel Adsorption Cu(II) |
| Funding Organization | National Natural Science Foundation of China ; Scientific and Technological Research Program of Chongqing Municipal Education Commission |
| DOI | 10.1016/j.cherd.2019.03.028 |
| Indexed By | SCI |
| Language | 英语 |
| Funding Project | National Natural Science Foundation of China[51708075] ; Scientific and Technological Research Program of Chongqing Municipal Education Commission[KJ1713335] ; Scientific and Technological Research Program of Chongqing Municipal Education Commission[KJQN201801527] |
| WOS Research Area | Engineering |
| WOS Subject | Engineering, Chemical |
| WOS ID | WOS:000469896500023 |
| Publisher | INST CHEMICAL ENGINEERS |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.imr.ac.cn/handle/321006/133814 |
| Collection | 中国科学院金属研究所 |
| Corresponding Author | Li, Min; Meng, Xiaojing |
| Affiliation | 1.Chongqing Univ Sci & Technol, Dept Chem Engn, Chongqing 401331, Peoples R China 2.Chinese Acad Sci, Shenyang Natl Lab Mat Sci, Inst Met Res, 72 Wenhua Rd, Shenyang 110016, Liaoning, Peoples R China 3.Tsinghua Univ, Inst Nucl & New Energy Technol, Beijing 100084, Peoples R China |
| Recommended Citation GB/T 7714 | Li, Min,Feng, Jian,Huang, Kun,et al. Amino group functionalized SiO2@graphene oxide for efficient removal of Cu(II) from aqueous solutions[J]. CHEMICAL ENGINEERING RESEARCH & DESIGN,2019,145:235-244. |
| APA | Li, Min.,Feng, Jian.,Huang, Kun.,Tang, Si.,Liu, Ruihua.,...&Meng, Xiaojing.(2019).Amino group functionalized SiO2@graphene oxide for efficient removal of Cu(II) from aqueous solutions.CHEMICAL ENGINEERING RESEARCH & DESIGN,145,235-244. |
| MLA | Li, Min,et al."Amino group functionalized SiO2@graphene oxide for efficient removal of Cu(II) from aqueous solutions".CHEMICAL ENGINEERING RESEARCH & DESIGN 145(2019):235-244. |
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