| Removal of Congo red from aqueous solution using a chitosan/organo- montmorillonite nanocomposite | |
| Department | 环境材料与生态化学研究发展中心 |
Wang L(王丽); Wang AQ(王爱勤) ; 王爱勤 aqwang@licp.cas.cn
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| 2007 | |
| Source Publication | Journal of Chemical Technology and Biotechnology
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| ISSN | 0268-2575 |
| Volume | 82Issue:8Pages:711-720 |
| Abstract | To further improve the adsorption capacity of chitosan (CTS), a series of novel chitosan/organo-montmorillonite nanocomposites (CTS/OMMT) were synthesized and the adsorption abilities for Congo red (CR) investigated in this study. The nanocomposites were characterized by Fourier transform infrared spectroscopy (FTIR), X-ray diffraction analysis (XRD), scanning electron microscopy (SEM) and transmission electron microscopy (TEM), and the results indicated that an exfoliated nanostructure was formed in CTS/OMMT nanocomposites. Compared with the adsorption capacity of OMMT (192.4 mg g?1), CTS/OMMT with an amount of cetyltrimethylammonium bromide equal to 0.75 CEC of MMT and molar ratio of CTS to OMMT of 1:10 exhibited the higher adsorption capacity (290.8 mg g?1). The adsorption behaviours of OMMT and CTS/OMMT showed that the adsorption kinetics and isotherms were in good agreement with a pseudo-second-order equation and the Langmuir equation, respectively. The IR spectra revealed that a chemical interaction occurred between CTS/OMMT and CR. The adsorption capacity of CTS/OMMT nanocomposite was higher than that of other absorbents; this study suggested that the CTS/OMMT nanocomposite could be used as an adsorbent to remove CR dye from aqueous solution. |
| Keyword | Chitosan Organo-montmorillonite Nanocomposite Adsorption Congo Red Kinetics |
| Subject Area | 胶体与界面 |
| Funding Organization | 甘肃省科技攻关项目(2GS052-A52-002-07) |
| Indexed By | SCI |
| Language | 英语 |
| Funding Project | 功能复合材料组 |
| Document Type | 期刊论文 |
| Identifier | http://ir.licp.cn/handle/362003/209 |
| Collection | 环境材料与生态化学研究发展中心 |
| Corresponding Author | 王爱勤 aqwang@licp.cas.cn |
| Recommended Citation GB/T 7714 | Wang L,Wang AQ,王爱勤 aqwang@licp.cas.cn. Removal of Congo red from aqueous solution using a chitosan/organo- montmorillonite nanocomposite[J]. Journal of Chemical Technology and Biotechnology,2007,82(8):711-720. |
| APA | 王丽,王爱勤,&王爱勤 aqwang@licp.cas.cn.(2007).Removal of Congo red from aqueous solution using a chitosan/organo- montmorillonite nanocomposite.Journal of Chemical Technology and Biotechnology,82(8),711-720. |
| MLA | 王丽,et al."Removal of Congo red from aqueous solution using a chitosan/organo- montmorillonite nanocomposite".Journal of Chemical Technology and Biotechnology 82.8(2007):711-720. |
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| 2007828711720.pdf（537KB） | 开放获取 | License | View Application Full Text | |||
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