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	Adsorption properties of congo red from aqueous solution onto n,o-carboxymethyl-chitosan
	Wang, Li1; Wang, Aiqin1,2
刊名	Bioresource technology
	2008-03-01
卷号	99期号:5页码:1403-1408
关键词	N,o-carboxymethyl-chitosan Adsorption Congo red Kinetic Isotherms
ISSN号	0960-8524
DOI	10.1016/j.biortech.2007.01.063
通讯作者	Wang, aiqin(aqwang@lzb.ac.cn)
英文摘要	N,o-carboxymethyl-chitosans (n,o-cmc) with different degree of substitution (ds) were synthesized under heterogeneous conditions by controlling the reaction temperature. the factors influencing adsorption capacity of n,o-cmc such as the ds of n,o-cmc, initial ph value of the dye solution and adsorption temperature for anionic dye congo red (cr) were investigated. compared with chitosan (78.90 mg/g), n,o-cmc with the ds of 0.35 exhibited much higher adsorption capacity (330.62 mg/g) for cr at the same adsorption conditions. the adsorption kinetics and isotherms showed that the sorption processes were better fitted by pseudo-second-order equation and the langmuir equation, respectively. the adsorption mechanism of n,o-cmc was also discussed by means of ir and xps spectra. the results in this study indicated that n,o-cmc was an attractive candidate for removing cr from the dye wastewater. (c) 2007 elsevier ltd. all rights reserved.
WOS关键词	LINKED CHITOSAN BEADS ; ACTIVATED CARBON ; WASTE-WATER ; ANIONIC DYES ; FLY-ASH ; REMOVAL ; ACID ; COMPOSITE ; ADSORBENT ; IONS
WOS研究方向	Agriculture ; Biotechnology & Applied Microbiology ; Energy & Fuels
WOS类目	Agricultural Engineering ; Biotechnology & Applied Microbiology ; Energy & Fuels
语种	英语
出版者	ELSEVIER SCI LTD
WOS记录号	WOS:000253250900066
内容类型	期刊论文
URI标识	http://www.corc.org.cn/handle/1471x/2388621
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 Eco Mat & 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 properties of congo red from aqueous solution onto n,o-carboxymethyl-chitosan[J]. Bioresource technology,2008,99(5):1403-1408.
APA	Wang, Li,&Wang, Aiqin.(2008).Adsorption properties of congo red from aqueous solution onto n,o-carboxymethyl-chitosan.Bioresource technology,99(5),1403-1408.
MLA	Wang, Li,et al."Adsorption properties of congo red from aqueous solution onto n,o-carboxymethyl-chitosan".Bioresource technology 99.5(2008):1403-1408.

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