Adsorption on hydrous oxides.Ⅲ.Fulvic acid and humic acid on goethite,gibbsite and imogolite

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	Adsorption on hydrous oxides.Ⅲ.Fulvic acid and humic acid on goethite,gibbsite and imogolite
	R. L. PARFITT ; A. R. FRASER ; V. C. FARMER
刊名	Journal of Soil Science
	1977
卷号	28 期号:2 页码:289-296
通讯作者	R. L. PARFITT
英文摘要	Adsorption isotherms were obtained for fulvic and humic acids on synthetic gibbsite and goethite and on a natural imogolite. The results were interpreted with the help of spectra of the adsorption complexes, and measurements of hydroxyl displaced. The mechanism of adsorption involved ligand exchange with the surface hydroxyl groups and hydrogen bonding. The hydroxyl groups displaced included singly coordinated species on the (100) face of goethite and on the edge faces of gibbsite. The doubly coordinated hydroxyl groups on the (001) face of gibbsite were not replaced, and this face adsorbed only un-ionized fulvic acid probably by a hydrogen bonding mechanism. Imogolite adsorbed most fulvic acid because of its high porosity. Only isolated places on its surface reacted with fulvic acid to form carboxylate groups.
语种	英语
公开日期	2011-07-22
内容类型	期刊论文
源URL	[http://ir.yic.ac.cn/handle/133337/4458]
专题	烟台海岸带研究所_科研共享资源
推荐引用方式 GB/T 7714	R. L. PARFITT,A. R. FRASER,V. C. FARMER. Adsorption on hydrous oxides.Ⅲ.Fulvic acid and humic acid on goethite,gibbsite and imogolite[J]. Journal of Soil Science,1977,28(2):289-296.
APA	R. L. PARFITT,A. R. FRASER,&V. C. FARMER.(1977).Adsorption on hydrous oxides.Ⅲ.Fulvic acid and humic acid on goethite,gibbsite and imogolite.Journal of Soil Science,28(2),289-296.
MLA	R. L. PARFITT,et al."Adsorption on hydrous oxides.Ⅲ.Fulvic acid and humic acid on goethite,gibbsite and imogolite".Journal of Soil Science 28.2(1977):289-296.