EXAFS Signatures of Structural Zn at Trace Levels in Layered Minerals
Conference
·
OSTI ID:896407
Many in situ XAFS studies have shown that zinc incorporated in layered minerals is a major form of zinc in Zn-contaminated soils. Quantitative information on the local structural environment(s) and ordering of Zn in these minerals is required to better understand its behavior in soils. In this study, EXAFS spectroscopy was used to assess the structural environment of zinc incorporated at trace levels (40 ppm to 4,000 ppm) within the octahedral sheets of various natural and synthetic layered minerals. Results indicate that EXAFS data analyzed using ab initio FEFF calculations (FEFF 8.10) can unambiguously distinguish between zinc incorporation within the octahedral sheet of dioctahedral versus trioctahedral layered minerals and can determine the distribution (random or ordered) of zinc cations within the octahedral sheets of these minerals.
- Research Organization:
- Stanford Linear Accelerator Center (SLAC)
- Sponsoring Organization:
- USDOE
- DOE Contract Number:
- AC02-76SF00515
- OSTI ID:
- 896407
- Report Number(s):
- SLAC-PUB-12227
- Country of Publication:
- United States
- Language:
- English
Similar Records
EXAFS Signatures of Structural Zn at Trace Levels in Layered Minerals
Molecular Simulation of Cesium Adsorption at the Basal Surface of Phyllosilicate Minerals
Improving Resolution in k and r Space: A FEFF-based Wavelet for EXAFS Data Analysis
Journal Article
·
Thu Feb 01 23:00:00 EST 2007
· AIP Conference Proceedings
·
OSTI ID:21054606
Molecular Simulation of Cesium Adsorption at the Basal Surface of Phyllosilicate Minerals
Journal Article
·
Tue Aug 16 00:00:00 EDT 2016
· Clays and Clay Minerals
·
OSTI ID:1347867
Improving Resolution in k and r Space: A FEFF-based Wavelet for EXAFS Data Analysis
Journal Article
·
Thu Feb 01 23:00:00 EST 2007
· AIP Conference Proceedings
·
OSTI ID:21054730