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	Effective removal of cu (ii) ions from aqueous solution by amino-functionalized magnetic nanoparticles
	Hao Yong-Mei1; Chen Man1; Hu Zhong-Bo2
刊名	Journal of hazardous materials
	2010-12-15
卷号	184期号:1-3页码:392-399
关键词	Copper Removal Amino-functionalized Adsorption Magnetic nanoparticle
ISSN号	0304-3894
DOI	10.1016/j.jhazmat.2010.08.048
通讯作者	Hao yong-mei(ymhao@gucas.ac.cn)
英文摘要	A novel magnetic nano-adsorbent (mnp-nh(2)) has been developed by the covalent binding of 1,6-hexadiamine on the surface of fe(3)o(4) nanoparticles for removal of cu(2+) ions from aqueous solution. various factors affecting the uptake behavior such as contact time, temperature, ph, salinity, amount of mnp-nh(2) and initial concentration of cu(2+) were investigated. the kinetics was evaluated utilizing the lagergren pseudo-first-order, pseudo-second-order, elovich and intra-particle diffusion models. the equilibrium data were analyzed using langmuir. freundlich, and dubinin-radushkevich isotherms. the adsorption was relatively fast and the equilibrium was established within 5 min, and its kinetics followed the pseudo-second-order mechanism, evidencing chemical sorption as the rate-limiting step of sorption mechanism. the best interpretation for the equilibrium data was given by langmuir isotherm, and the maximum adsorption capacities was 25.77 mg g(-1) at ph 6, and 298 k. thermodynamic parameters showed that the adsorption process was spontaneous, endothermic and chemical in nature. the successive adsorption-desorption studies indicated that the mnp-nh(2) sorbent kept its adsorption and desorption efficiencies constant over 15 cycles. importantly, mnp-nh(2) was able to remove 98% of cu(2+) from polluted river and tap water. (c) 2010 elsevier b.v. all rights reserved.
WOS关键词	METAL-IONS ; HEAVY-METALS ; CU(II) IONS ; COPPER IONS ; ADSORPTION PROPERTIES ; COMPOSITE ADSORBENT ; CARBON NANOTUBES ; NANO-ADSORBENT ; WASTE-WATER ; SORPTION
WOS研究方向	Engineering ; Environmental Sciences & Ecology
WOS类目	Engineering, Environmental ; Engineering, Civil ; Environmental Sciences
语种	英语
出版者	ELSEVIER SCIENCE BV
WOS记录号	WOS:000284504800052
内容类型	期刊论文
URI标识	http://www.corc.org.cn/handle/1471x/2408723
专题	中国科学院大学
通讯作者	Hao Yong-Mei
作者单位	1.Chinese Acad Sci, Grad Univ, Coll Chem & Chem Engn, Beijing 100049, Peoples R China 2.Chinese Acad Sci, Grad Univ, Coll Mat & Photoelect Technol, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Hao Yong-Mei,Chen Man,Hu Zhong-Bo. Effective removal of cu (ii) ions from aqueous solution by amino-functionalized magnetic nanoparticles[J]. Journal of hazardous materials,2010,184(1-3):392-399.
APA	Hao Yong-Mei,Chen Man,&Hu Zhong-Bo.(2010).Effective removal of cu (ii) ions from aqueous solution by amino-functionalized magnetic nanoparticles.Journal of hazardous materials,184(1-3),392-399.
MLA	Hao Yong-Mei,et al."Effective removal of cu (ii) ions from aqueous solution by amino-functionalized magnetic nanoparticles".Journal of hazardous materials 184.1-3(2010):392-399.

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