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