| Facile self-assembly of Au nanoparticles on a magnetic attapulgite/Fe3O4 composite for fast catalytic decoloration of dye | |
| Department | 环境材料与生态化学研究发展中心 |
Wang WB(王文波)1,2 ; Wang FF(王方方)1; Kang YR(康玉茹)1; Wang AQ(王爱勤)1,2; Wang AQ(王爱勤)
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| 2013 | |
| Source Publication | RSC Advances
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| ISSN | 2046-2069 |
| Volume | 3Issue:29Pages:11515-11520 |
| Abstract | In this paper, we employed a simple and efficient electrostatic self-assembly strategy to fabricate superparamagnetic attapulgite/Fe3O4/Au nanoparticles (APT/Fe3O4/AuNPs) nanocomposites with a well-dispersed distribution of AuNPs using natural chitosan (CTS) as a ‘‘bridge’’. The ‘‘toruloid’’ APT/Fe3O4 composite with negative surface charges was firstly prepared by a one-step solvent-thermal reaction between APT, FeCl3 and ethylene glycol, and then the positively charged CTS was used as a ‘‘double sided tape’’ to tightly adhere APT/Fe3O4 and AuNPs through electrostatic interaction. UV-vis, XRD and TEM analyses proved that the ‘‘toruloid’’ structure was formed, and AuNPs were successfully attached on the APT surface with good dispersion. The formation of the ‘‘toruloid’’ composite structure can not only bring stronger magnetism, but also facilitate the attachment of AuNPs. The APT/Fe3O4/AuNPs nanocomposite shows excellent catalytic activity, which can rapidly catalytically decolor a solution of Congo red (20 mg L21) within 2 min at a low dosage of 0.3 g L-1. In addition, the nanocomposite shows strong magnetism with a maximum magnetization rate of 33.6 emu g-1. This makes the nanocomposite prone to be magnetically separated and recycled. |
| Subject Area | 功能复合材料 |
| DOI | 10.1039/c3ra41836g |
| Funding Organization | the “863” Project of the Ministry of Science and Technology, China (No. 2013AA031403);Technology Support Project of Jiangsu Provincial Sci. & Tech. Department (No. BE2012113);the Open Fund of the Xuyi Center of Attapulgite Applied Technology Research Development & Industrialization, Chinese Academy of Sciences (No. CASXY-04) |
| Indexed By | SCI |
| If | 3.708 |
| Language | 英语 |
| Funding Project | 功能复合材料组 |
| compositor | 第一作者单位 |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.licp.cn/handle/362003/4256 |
| Collection | 环境材料与生态化学研究发展中心 |
| Corresponding Author | Wang AQ(王爱勤) |
| Affiliation | 1.Chinese Acad Sci, Lanzhou Inst Chem Phys, Ctr Ecomat & Green Chem, Lanzhou 730000, Peoples R China 2.Chinese Acad Sci, Lanzhou Inst Chem Phys, R&D Ctr Xuyi Attapulgite Appl Technol, Lanzhou 730000, Peoples R China |
| Recommended Citation GB/T 7714 | Wang WB,Wang FF,Kang YR,et al. Facile self-assembly of Au nanoparticles on a magnetic attapulgite/Fe3O4 composite for fast catalytic decoloration of dye[J]. RSC Advances,2013,3(29):11515-11520. |
| APA | Wang WB,Wang FF,Kang YR,Wang AQ,&王爱勤.(2013).Facile self-assembly of Au nanoparticles on a magnetic attapulgite/Fe3O4 composite for fast catalytic decoloration of dye.RSC Advances,3(29),11515-11520. |
| MLA | Wang WB,et al."Facile self-assembly of Au nanoparticles on a magnetic attapulgite/Fe3O4 composite for fast catalytic decoloration of dye".RSC Advances 3.29(2013):11515-11520. |
| Files in This Item: | ||||||
| File Name/Size | DocType | Version | Access | License | ||
| C3RA41836G.pdf（882KB） | 期刊论文 | 作者接受稿 | 开放获取 | CC BY-NC-SA | View Application Full Text | |
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