Removal of Congo red from aqueous solution using a chitosan/organo- montmorillonite nanocomposite
文献类型：期刊论文
| 作者 | Wang AQ(王爱勤)
|
| 刊名 | Journal of Chemical Technology and Biotechnology
 |
| 出版日期 | 2007 |
| 卷号 | 82期号:8页码:711-720 |
| 关键词 | chitosan organo-montmorillonite nanocomposite adsorption Congo red kinetics |
| ISSN号 | 0268-2575 |
| 通讯作者 | 王爱勤 aqwang@licp.cas.cn |
| 中文摘要 | 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. |
| 学科主题 | 胶体与界面 |
| 收录类别 | SCI |
| 资助信息 | 甘肃省科技攻关项目(2GS052-A52-002-07) |
| 语种 | 英语 |
| 公开日期 | 2012-09-02 |
| 源URL | [http://210.77.64.217/handle/362003/209]  |
| 专题 | 兰州化学物理研究所_环境材料与生态化学研究发展中心 |
| 推荐引用方式 GB/T 7714 | Wang AQ. 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 | 王爱勤.(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 | 王爱勤."Removal of Congo red from aqueous solution using a chitosan/organo- montmorillonite nanocomposite".Journal of Chemical Technology and Biotechnology 82.8(2007):711-720. |
入库方式： OAI收割
来源：兰州化学物理研究所
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