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Adsorption behaviors of congo red on the n,o-carboxymethyl-chitosan/montmorillonite nanocomposite

文献类型:期刊论文

作者Wang, Li1,2; Wang, Aiqin1
刊名Chemical engineering journal
出版日期2008-09-15
卷号143期号:1-3页码:43-50
关键词N,o-carboxymethyl-chitosan Nanocomposite Congo red Adsorption Kinetic
ISSN号1385-8947
DOI10.1016/j.cej.2007.12.007
通讯作者Wang, aiqin(aqwang@lzb.ac.cn)
英文摘要A series of n,o-carboxy methyl-chitosan/montmorillonite (n,o-cmc-mmt) nanocomposites were prepared by controlling the molar ratios of n,o-carboxymethyl-chitosan (n,o-cmc) and montmorillonite (mmt). the nanocomposites were characterized by mr, xrd and sem. adsorption of congo red (cr) anionic dye from aqueous solution onto n,o-cmc-mmt was studied. the results showed that the nanocomposite with the molar ratio of n,o-cmc to mmt of 5:1 exhibited the higher adsorption capacity. this may be attributed to the fact that the introduction of n,o-cmc in the galleries of mmt may have different influences on physico-chemical properties of mmt and in turn result in different influences on adsorption capacity of n,o-cmc-mmt for cr. the effects of different molar ratios of n,o-cmc and mmt, initial ph value of the dye solution and temperature on adsorption capacities of samples for cr dye have been investigated. the results of adsorption behaviors of cr on n,o-cmc-mmt indicated that all the adsorption processes followed the pseudo-second-order and the langmuir isotherm, respectively. (c) 2007 elsevier b.v. all rights reserved.
WOS关键词LINKED CHITOSAN BEADS ; AQUEOUS-SOLUTIONS ; WASTE-WATER ; FLY-ASH ; NA+-MONTMORILLONITE ; COLOR REMOVAL ; ORANGE PEEL ; BASIC-DYES ; ACID DYES ; EQUILIBRIUM
WOS研究方向Engineering
WOS类目Engineering, Environmental ; Engineering, Chemical
语种英语
WOS记录号WOS:000259850800004
出版者ELSEVIER SCIENCE SA
URI标识http://www.irgrid.ac.cn/handle/1471x/2384940
专题中国科学院大学
通讯作者Wang, Aiqin
作者单位1.Chinese Acad Sci, Lanzhou Inst Chem Phys, Ctr Ecomat & Green Chem, Lanzhou 730000, Peoples R China
2.Chinese Acad Sci, Grad Sch, Beijing 100049, Peoples R China
推荐引用方式
GB/T 7714
Wang, Li,Wang, Aiqin. Adsorption behaviors of congo red on the n,o-carboxymethyl-chitosan/montmorillonite nanocomposite[J]. Chemical engineering journal,2008,143(1-3):43-50.
APA Wang, Li,&Wang, Aiqin.(2008).Adsorption behaviors of congo red on the n,o-carboxymethyl-chitosan/montmorillonite nanocomposite.Chemical engineering journal,143(1-3),43-50.
MLA Wang, Li,et al."Adsorption behaviors of congo red on the n,o-carboxymethyl-chitosan/montmorillonite nanocomposite".Chemical engineering journal 143.1-3(2008):43-50.

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来源:中国科学院大学

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