標題: Adsorption behavior of iron-cyanide onto gamma-Al2O3 interface: A coagulation approach
作者: Cheng, WP
Huang, CP
Pan, JRS
環境工程研究所
Institute of Environmental Engineering
關鍵字: coagulation;ferricyanide;ferrocyanide;adsorption
公開日期: 1-五月-1999
摘要: Ferrocyanide and ferricyanide ions have strong coagulation ability in a natural water system due to their high valences. Studies with aluminum oxide turbid waters showed significant differences in coagulation between simple ions (Cl-, SO42-, Fe(CN)(6)Fe3-(CN)(6)(4-)) and other species (H2PO4-) that interact chemically with the oxide surface. The evidence suggested that the adsorption of ferrocyanide and ferricyanide on aluminum oxide surface is an outer-sphere reaction. The linear relationship between the logarithm of the significant coagulation concentration and Schultz-Hardy ratios indicated that the coagulation obeyed the DLVO rule. Therefore, it is concluded that the coagulation of aluminum oxide by ferrocyanide and ferricyanide is essentially caused by compression of the electric double layer rather than by charge neutralization. (C) 1999 Academic Press.
URI: http://dx.doi.org/10.1006/jcis.1999.6100
http://hdl.handle.net/11536/31377
ISSN: 0021-9797
DOI: 10.1006/jcis.1999.6100
期刊: JOURNAL OF COLLOID AND INTERFACE SCIENCE
Volume: 213
Issue: 1
起始頁: 204
結束頁: 207
顯示於類別:期刊論文


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  1. 000079884600023.pdf