Characteristics of Lead Sorption on Clay Minerals in Relation to Metal Oxides

	Characteristics of Lead Sorption on Clay Minerals in Relation to Metal Oxides
	Zhuang Jie 1; Yu Guibui 2; Liu Xiaoyi 3
刊名	土壤圈：英文版
	2000
卷号	10.0 期号:1.0 页码:11
关键词	粘土矿物重金属污染铅吸附作用蒙脱石伊利石高岭石逻辑模型金属氧化物
ISSN号	1002-0160
英文摘要	Difference of montmorillonite(Mt),illite(It) and kaolinite(Kt) in lead sorption characteristics and the effects of amorphous Fe and Al oxide coatings on the characteristics were experimentally sutdied with logistic model.The sorption curves had sigmoid feature due to use of acetate-type buffer solution.With the model the sorption process could be divided into four stages and the sorption characteristics at the stages were discussed.The results showed that,after Mt,It and Kt were coated by amorphous Fe oxide,their maximum sorption capacity(MSC) and percentage of high-SSC concentration scope(HCS) of Pb^2+ increased markedly,but the specific sorption capacity(SSC) decreased.with regard to effects of amorphous Al oxide coating,except for It+Al,the SSC of other samples showed a downtrend,despite that their MSC remained unchanged.Eventually,the gray correlation degrees to Pb^2+ sorption for different physicochemical characteristics of the clay minerals were indicated to be higher for hydronium,zero point of surface charge and hydroxy,but lower for specific surface area.density of surface charge and amount of surface charges.
语种	英语
内容类型	期刊论文
源URL	[http://ir.igsnrr.ac.cn/handle/311030/152529]
专题	中国科学院地理科学与资源研究所
作者单位	1.千叶大学 2.中国科学院中国生态系统研究网络 3.沈阳农业大学
推荐引用方式 GB/T 7714	Zhuang Jie,Yu Guibui,Liu Xiaoyi. Characteristics of Lead Sorption on Clay Minerals in Relation to Metal Oxides[J]. 土壤圈：英文版,2000,10.0(1.0):11.
APA	Zhuang Jie,Yu Guibui,&Liu Xiaoyi.(2000).Characteristics of Lead Sorption on Clay Minerals in Relation to Metal Oxides.土壤圈：英文版,10.0(1.0),11.
MLA	Zhuang Jie,et al."Characteristics of Lead Sorption on Clay Minerals in Relation to Metal Oxides".土壤圈：英文版 10.0.1.0(2000):11.