Iodide Adsorption onto Three Organic-Inorganic Composite Adsorbents

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	Iodide Adsorption onto Three Organic-Inorganic Composite Adsorbents
	Zhang, Huifang 1,2; Guo, Tan 1,2; Li, Quan1 ; Liu, Haining1 ; Ye, Xiushen1 ; Wu, Zhijian1
	2012
发表期刊	ADSORPTION SCIENCE & TECHNOLOGY
ISSN	0263-6174
卷号	30 期号:5 页码:449-460
摘要	Composite adsorbents, Ca(ALG)(2)-Cu2O, Ca(ALG)(2)-AgCl and Ca(ALG)(2)-Ag, were prepared using Cu2O, AgCl and Ag as the adsorption-active components and calcium alginate as the matrix material. The adsorption of iodide from aqueous solutions onto these adsorbents was investigated as a function of initial solution pH, temperature and co-existing NaCl. The loading of the adsorption-active components in the composite adsorbents is much higher than that in the reported composite adsorbents. In neutral solutions, the equilibrium adsorption amount follows the order of Ca(ALG)(2)-AgCl >> Ca(ALG)(2)-Ag >> Ca(ALG)(2)-Cu2O. The adsorption by Ca(ALG)(2)-AgCl is insensitive to pH, while the adsorption by Ca(ALG)(2)-Cu2O and Ca(ALG)(2)-Ag is pH dependent. The effect of temperature on the adsorption is more pronounced for Ca(ALG)(2)-Cu2O than for Ca(ALG)(2)-AgCl and Ca(ALG)(2)-Ag. The co-existing NaCl does not affect the adsorption by Ca(ALG)(2)-AgCl very much; however, it suppresses the adsorption by Ca(ALG)(2)-Ag, and especially, Ca(ALG)(2)-Cu2O. Chemical adsorption is the main mechanism for all the three adsorbents. Ca(ALG)(2)-AgCl was found to be the best adsorbent owing to its highest adsorption capacity, suitable adsorption rate and insensitivity to solution pH, temperature and co-existing NaCl.
语种	英语
引用统计
文献类型	期刊论文
条目标识符	http://ir.isl.ac.cn/handle/363002/2079
专题	青海盐湖研究所知识仓储
作者单位	1.Chinese Acad Sci, Qinghai Inst Salt Lakes, Key Lab Salt Lake Resources & Chem, Xining 810008, Peoples R China 2.Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Zhang, Huifang,Guo, Tan,Li, Quan,et al. Iodide Adsorption onto Three Organic-Inorganic Composite Adsorbents[J]. ADSORPTION SCIENCE & TECHNOLOGY,2012,30(5):449-460.
APA	Zhang, Huifang,Guo, Tan,Li, Quan,Liu, Haining,Ye, Xiushen,&Wu, Zhijian.(2012).Iodide Adsorption onto Three Organic-Inorganic Composite Adsorbents.ADSORPTION SCIENCE & TECHNOLOGY,30(5),449-460.
MLA	Zhang, Huifang,et al."Iodide Adsorption onto Three Organic-Inorganic Composite Adsorbents".ADSORPTION SCIENCE & TECHNOLOGY 30.5(2012):449-460.

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