X-Ray Absorption Fine Structure (XAFS) Study of the Effects of pH on Pb(II) Sorption by Soil

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	X-Ray Absorption Fine Structure (XAFS) Study of the Effects of pH on Pb(II) Sorption by Soil
	Hu Ning-jing 1,2; Huang Peng 3; Luo Yong-ming 1; Hu Tian-dou 4; Xie Ya-ning 4; Wu Zi-yu 4
刊名	SPECTROSCOPY AND SPECTRAL ANALYSIS
	2010-12-01
卷号	30 期号:12 页码:3425-3429
关键词	Pb Inner-sphere sorption Precipitation Soil XAFS
英文摘要	Combined batch sorption and in situ X-ray absorption fine structure (XAFS) provide direct assessment of the mechanisms for Pb(II) sorption at the soil-water interface under different pH conditions. The XAFS data indicated that the innersphere Pb sorption complex with ionic character (Pb(4) (OH)(4)(4+)) dominated the Pb surface speciation, and the outer-sphere Pb sorption complex and the precipitation of calcium carbonate containing Pb(PbCaCO(3)) were also involved in the adsorption samples. Coordination number and radial distance of the first-shell Pb-O decreased from 0. 172 7 to 0. 166 6 nm and the percentage of inner-sphere complexes increased when the initial pH changed from 6. 0 to 8. 5, indicating that the mechanism of Pb(II) sorption by the soil was pH-dependent.
收录类别	SCI
语种	英语
WOS记录号	WOS:000284987600058
内容类型	期刊论文
源URL	[http://ir.qdio.ac.cn/handle/337002/32739]
专题	海洋研究所_海洋地质与环境重点实验室
作者单位	1.Chinese Acad Sci, Inst Soil Sci, Key Lab Soil Environm & Pollut Remediat, Nanjing 210008, Peoples R China 2.State Ocean Adm, Inst Oceanog 1, Qingdao 266061, Peoples R China 3.Chinese Acad Sci, Inst Oceanol, Qingdao 266072, Peoples R China 4.Chinese Acad Sci, Beijing Synchrotron Radiat Facil, Inst High Energy Phys, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Hu Ning-jing,Huang Peng,Luo Yong-ming,et al. X-Ray Absorption Fine Structure (XAFS) Study of the Effects of pH on Pb(II) Sorption by Soil[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS,2010,30(12):3425-3429.
APA	Hu Ning-jing,Huang Peng,Luo Yong-ming,Hu Tian-dou,Xie Ya-ning,&Wu Zi-yu.(2010).X-Ray Absorption Fine Structure (XAFS) Study of the Effects of pH on Pb(II) Sorption by Soil.SPECTROSCOPY AND SPECTRAL ANALYSIS,30(12),3425-3429.
MLA	Hu Ning-jing,et al."X-Ray Absorption Fine Structure (XAFS) Study of the Effects of pH on Pb(II) Sorption by Soil".SPECTROSCOPY AND SPECTRAL ANALYSIS 30.12(2010):3425-3429.