Adsorption kinetics and equilibrium of copper from ethanol fuel on silica-gel functionalized with amino-terminated dendrimer-like polyamidoamine polymers

CORC > 烟台海岸带研究所 > 中国科学院烟台海岸带研究所 > 中科院烟台海岸带研究所知识产出

	Adsorption kinetics and equilibrium of copper from ethanol fuel on silica-gel functionalized with amino-terminated dendrimer-like polyamidoamine polymers
	Qu, Rongjun 1; Sun, Changmei 1; Ma, Fang 1; Cui, Zhenzhong 2; Zhang, Ying 1; Sun, Xiaoying 1; Ji, Chunnuan 1; Wang, Chunhua 1; Yin, Ping 1
刊名	FUEL
	2012-02-01
卷号	92 期号:1 页码:204-210
关键词	Silica-gel Functionalized With Polyamidoamine Copper Ion Ethanol Solution Kinetics Equilibrium
ISSN号	0016-2361
通讯作者	Qu, RJ (reprint author), Ludong Univ, Sch Chem & Mat Sci, Yantai 264025, Shandong, Peoples R China. rongjunqu@sohu.com
产权排序	[Qu, Rongjun; Sun, Changmei; Ma, Fang; Zhang, Ying; Sun, Xiaoying; Ji, Chunnuan; Wang, Chunhua; Yin, Ping] Ludong Univ, Sch Chem & Mat Sci, Yantai 264025, Shandong, Peoples R China; [Cui, Zhenzhong] Chinese Acad Sci, Yantai Inst Coastal Zone Res, Yantai 264003, Shandong, Peoples R China
文献子类	Article
英文摘要	The adsorption kinetics and equilibrium of silica-gel functionalized with amino-terminated dendrimer-like polyamidoamine ( PAMAM) polymers SiO(2)-G1.0, SiO(2)-G2.0 and SiO(2)-G3.0 for Cu(2+) in ethanol fuel were investigated by using batch method. The results indicated that the all the adsorptions of the three adsorbents followed well the pseudo second-order model. The adsorption isotherms were fitted by Langmuir model, Freundlich model and Dubinin-Radushkevich (D-R) model. The results showed that Langmuir model was more suitable to describe the equilibrium data than the Freundlich model. From the D-R isotherm model, the mean free energy E calculated of the three adsorbents showed that the adsorptions were taken place by physical processes. Thermodynamic parameters, Delta G(0), Delta H(0) and Delta S(0) indicated the Cu(2+) adsorption to be endothermic and spontaneous with decreased randomness at the solid-solution interface, resulting in their higher adsorption capacities at higher temperature. The effect of generation number of PAMAM polymers loaded on silica-gel, contact time, initial concentration and temperatures on the adsorption capabilities were studied in detail. Moreover, the adsorption mechanism of copper from ethanol fuel was also presumed.; The adsorption kinetics and equilibrium of silica-gel functionalized with amino-terminated dendrimer-like polyamidoamine ( PAMAM) polymers SiO2-G1.0, SiO2-G2.0 and SiO2-G3.0 for Cu2+ in ethanol fuel were investigated by using batch method. The results indicated that the all the adsorptions of the three adsorbents followed well the pseudo second-order model. The adsorption isotherms were fitted by Langmuir model, Freundlich model and Dubinin-Radushkevich (D-R) model. The results showed that Langmuir model was more suitable to describe the equilibrium data than the Freundlich model. From the D-R isotherm model, the mean free energy E calculated of the three adsorbents showed that the adsorptions were taken place by physical processes. Thermodynamic parameters, Delta G(0), Delta H-0 and Delta S-0 indicated the Cu2+ adsorption to be endothermic and spontaneous with decreased randomness at the solid-solution interface, resulting in their higher adsorption capacities at higher temperature. The effect of generation number of PAMAM polymers loaded on silica-gel, contact time, initial concentration and temperatures on the adsorption capabilities were studied in detail. Moreover, the adsorption mechanism of copper from ethanol fuel was also presumed. (C) 2011 Elsevier Ltd. All rights reserved.
学科主题	Energy & Fuels ; Engineering
URL标识	查看原文
WOS关键词	ATOMIC-ABSORPTION-SPECTROMETRY ; PLASMA-MASS SPECTROMETRY ; METAL-IONS ; SI ENGINE ; AQUEOUS-SOLUTIONS ; ACTIVATED CARBON ; GASOLINE ; PRECONCENTRATION ; SORPTION ; CU
WOS研究方向	Energy & Fuels ; Engineering
语种	英语
WOS记录号	WOS:000297572600026
资助机构	National Natural Science Foundation of China[51073075]; Natural Science Foundation of Shandong Province[2009ZRB01463, 2008BS04011]; Nature Science Foundation of Ludong University[08-CXA001, 032912, 042920]; Ludong University[YD05001, Ycx0612]
公开日期	2012-06-13
内容类型	期刊论文
源URL	[http://ir.yic.ac.cn/handle/133337/5500]
专题	烟台海岸带研究所_中科院烟台海岸带研究所知识产出
作者单位	1.Ludong Univ, Sch Chem & Mat Sci, Yantai 264025, Shandong, Peoples R China 2.Chinese Acad Sci, Yantai Inst Coastal Zone Res, Yantai 264003, Shandong, Peoples R China
推荐引用方式 GB/T 7714	Qu, Rongjun,Sun, Changmei,Ma, Fang,et al. Adsorption kinetics and equilibrium of copper from ethanol fuel on silica-gel functionalized with amino-terminated dendrimer-like polyamidoamine polymers[J]. FUEL,2012,92(1):204-210.
APA	Qu, Rongjun.,Sun, Changmei.,Ma, Fang.,Cui, Zhenzhong.,Zhang, Ying.,...&Yin, Ping.(2012).Adsorption kinetics and equilibrium of copper from ethanol fuel on silica-gel functionalized with amino-terminated dendrimer-like polyamidoamine polymers.FUEL,92(1),204-210.
MLA	Qu, Rongjun,et al."Adsorption kinetics and equilibrium of copper from ethanol fuel on silica-gel functionalized with amino-terminated dendrimer-like polyamidoamine polymers".FUEL 92.1(2012):204-210.