Removal of Cadmium(II) from Wastewater Using Novel Cadmium Ion-Imprinted Polymers

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	Removal of Cadmium(II) from Wastewater Using Novel Cadmium Ion-Imprinted Polymers
	Xi, Yu; Luo, Yiting; Luo, Jinming; Luo, Xubiao
刊名	JOURNAL OF CHEMICAL AND ENGINEERING DATA
	2015-11
卷号	60 期号:11 页码:3253-3261
英文摘要	Cadmium ion-imprinted polymers (Cd-IIP) were synthesized by precipitation polymerization using a complex of dithizone and cadmium as a template. The saturation adsorption capacity of the Cd-IIP is two times that of the nonimprinted polymers (Cd-NIP). Homogeneous binding sites are confirmed by the Langmuir isotherm. The adsorption kinetics fit a pseudo-second-order model well; and the adsorption equilibrium time is only approximately 20 mm The effect of coexisting ions on the Cd(II)-IIP and NIP were investigated by competing with Pb(II), Co(II), and Cu(II), and the ratio of relative selectivity coefficients was greater than 1.68. Thermodynamic parameters indicated that Cd(II) adsorption over UP and NIP was a spontaneous and exothermic process. The enthalpy changes in different temperatures and adsorption energy are lower than -20.0 and 8 kJ/mol; respectively. These indicate that the adsorption process may be dominated by physisorption. The Cd-IIP was used for five cycles with a small decrease in adsorption capacity, which validated a significant potential of Cd-IIP in wastewater treatment.
研究领域[WOS]	Thermodynamics ; Chemistry, Multidisciplinary ; Engineering, Chemical
WOS记录号	WOS:000364796600025
公开日期	2016-03-15
内容类型	期刊论文
源URL	[http://ir.rcees.ac.cn/handle/311016/32835]
专题	生态环境研究中心_环境水质学国家重点实验室
推荐引用方式 GB/T 7714	Xi, Yu,Luo, Yiting,Luo, Jinming,et al. Removal of Cadmium(II) from Wastewater Using Novel Cadmium Ion-Imprinted Polymers[J]. JOURNAL OF CHEMICAL AND ENGINEERING DATA,2015,60(11):3253-3261.
APA	Xi, Yu,Luo, Yiting,Luo, Jinming,&Luo, Xubiao.(2015).Removal of Cadmium(II) from Wastewater Using Novel Cadmium Ion-Imprinted Polymers.JOURNAL OF CHEMICAL AND ENGINEERING DATA,60(11),3253-3261.
MLA	Xi, Yu,et al."Removal of Cadmium(II) from Wastewater Using Novel Cadmium Ion-Imprinted Polymers".JOURNAL OF CHEMICAL AND ENGINEERING DATA 60.11(2015):3253-3261.