中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
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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