Adsorptionproperties of CongoRed from aqueoussolution onto surfactant-modifiedmontmorillonite
文献类型：期刊论文
| 作者 | Wang AQ(王爱勤)
|
| 刊名 | Journal of Hazardous Materials
 |
| 出版日期 | 2008 |
| 卷号 | 160期号:1页码:173-180 |
| 关键词 | Montmorillonite Surfactant Adsorption CongoRed Kinetic |
| ISSN号 | 0304-3894 |
| 通讯作者 | 王爱勤 aqwang@licp.cas.cn |
| 中文摘要 | A series of surfactant-modified montmorillonites (MMT) were prepared using octyltrimethylammonium bromide (OTAB), dodecyltrimethylammonium bromide (DTAB), cetyltrimethylammonium bromide (CTAB) and stearyltrimethylammonium bromide (STAB), and the organification of MMT was proved by Fourier transform infrared (FTIR) spectroscopy, X-ray diffraction (XRD), scanning electron micrographic (SEM) and transmission electron microscope (TEM). The adsorption of Congo Red (CR) anionic dye from aqueous solution onto surfactant-modified MMT was carried out. Compared with MMT, the adsorption capacity of surfactant-modified MMT for CR was greatly enhanced and MMT modified with CTAB (2.0 CEC) exhibited the higher adsorption capacity. The effects of pH value of the dye solution, adsorption temperature, adsorption time and the initial dye concentration on the adsorption capacity of CR on CTAB-MMT have been investigated. The results showed that the adsorption kinetic of CR on CTAB-MMT could be best described by the pseudo-second-order model and that the adsorption isotherm of CR was in good agreement with the Langmuir equation. The IR spectra and SEM analysis also revealed that the adsorption of CTAB-MMT was a chemical adsorption process between CTAB and the NH2, –NN– and SO3 groups of CR. |
| 学科主题 | 胶体与界面 |
| 收录类别 | SCI |
| 资助信息 | 江苏省科技厅项目(BS2007118) |
| 语种 | 英语 |
| 公开日期 | 2012-09-02 |
| 源URL | [http://210.77.64.217/handle/362003/180]  |
| 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. Adsorptionproperties of CongoRed from aqueoussolution onto surfactant-modifiedmontmorillonite[J]. Journal of Hazardous Materials,2008,160(1):173-180. |
| APA | 王爱勤.(2008).Adsorptionproperties of CongoRed from aqueoussolution onto surfactant-modifiedmontmorillonite.Journal of Hazardous Materials,160(1),173-180. |
| MLA | 王爱勤."Adsorptionproperties of CongoRed from aqueoussolution onto surfactant-modifiedmontmorillonite".Journal of Hazardous Materials 160.1(2008):173-180. |
入库方式： OAI收割
来源：兰州化学物理研究所
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