| Adsorptionproperties of CongoRed from aqueoussolution onto surfactant-modifiedmontmorillonite | |
| 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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| 2008 | |
| Source Publication | Journal of Hazardous Materials
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| ISSN | 0304-3894 |
| Volume | 160Issue:1Pages:173-180 |
| Abstract | 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. |
| Keyword | Montmorillonite Surfactant Adsorption Congored Kinetic |
| Subject Area | 胶体与界面 |
| Funding Organization | 江苏省科技厅项目(BS2007118) |
| 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/362003/180 |
| 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. Adsorptionproperties of CongoRed from aqueoussolution onto surfactant-modifiedmontmorillonite[J]. Journal of Hazardous Materials,2008,160(1):173-180. |
| APA | 王丽,王爱勤,&王爱勤 aqwang@licp.cas.cn.(2008).Adsorptionproperties of CongoRed from aqueoussolution onto surfactant-modifiedmontmorillonite.Journal of Hazardous Materials,160(1),173-180. |
| MLA | 王丽,et al."Adsorptionproperties of CongoRed from aqueoussolution onto surfactant-modifiedmontmorillonite".Journal of Hazardous Materials 160.1(2008):173-180. |
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| 20081601173180.pdf（1570KB） | 开放获取 | License | View Application Full Text | |||
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