Preliminary evaluation of SEM/EDS technique for the determination of colloid diffusion coefficient in granite matrix

Tsuey Lin Tsai; Yu Hung Shih; Liang Cheng Chen; Shih Chin Tsai; I. Hsien Lee; Chuan Pin Lee; Te Yen Su

doi:10.1007/s10967-019-06915-w

Preliminary evaluation of SEM/EDS technique for the determination of colloid diffusion coefficient in granite matrix

Tsuey Lin Tsai, Yu Hung Shih, Liang Cheng Chen, Shih Chin Tsai, I. Hsien Lee, Chuan Pin Lee, Te Yen Su

Department of Earth Sciences

Research output: Contribution to journal › Article › peer-review

3 Citations (Scopus)

Abstract

Colloids present high sorption for many solutes and are considered potential contaminant carriers in geological environments. Experimental quantitative data are required for an adequate description of colloid-mediated transport within natural media. In this paper, the line scan function of SEM/EDS was firstly applied to study colloid diffusion by depth profile in crystalline rock and the apparent diffusion coefficient was estimated to be ~ 6E−18 m²/s for 20 nm gold colloids. This technique can be applied to the prediction of colloid-facilitated radionuclide transport through water-saturated fractured porous rock for safety assessment of geological disposal for high-level radioactive waste.

Original language	English
Pages (from-to)	1803-1808
Number of pages	6
Journal	Journal of Radioanalytical and Nuclear Chemistry
Volume	322
Issue number	3
DOIs	https://doi.org/10.1007/s10967-019-06915-w
Publication status	Published - 2019 Dec 1

All Science Journal Classification (ASJC) codes

Analytical Chemistry
Nuclear Energy and Engineering
Radiology Nuclear Medicine and imaging
Pollution
Spectroscopy
Public Health, Environmental and Occupational Health
Health, Toxicology and Mutagenesis

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10.1007/s10967-019-06915-w

Cite this

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title = "Preliminary evaluation of SEM/EDS technique for the determination of colloid diffusion coefficient in granite matrix",

abstract = "Colloids present high sorption for many solutes and are considered potential contaminant carriers in geological environments. Experimental quantitative data are required for an adequate description of colloid-mediated transport within natural media. In this paper, the line scan function of SEM/EDS was firstly applied to study colloid diffusion by depth profile in crystalline rock and the apparent diffusion coefficient was estimated to be ~ 6E−18 m2/s for 20 nm gold colloids. This technique can be applied to the prediction of colloid-facilitated radionuclide transport through water-saturated fractured porous rock for safety assessment of geological disposal for high-level radioactive waste.",

author = "Tsai, {Tsuey Lin} and Shih, {Yu Hung} and Chen, {Liang Cheng} and Tsai, {Shih Chin} and Lee, {I. Hsien} and Lee, {Chuan Pin} and Su, {Te Yen}",

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doi = "10.1007/s10967-019-06915-w",

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AU - Tsai, Tsuey Lin

AU - Shih, Yu Hung

AU - Chen, Liang Cheng

AU - Tsai, Shih Chin

AU - Lee, I. Hsien

AU - Lee, Chuan Pin

AU - Su, Te Yen

PY - 2019/12/1

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AB - Colloids present high sorption for many solutes and are considered potential contaminant carriers in geological environments. Experimental quantitative data are required for an adequate description of colloid-mediated transport within natural media. In this paper, the line scan function of SEM/EDS was firstly applied to study colloid diffusion by depth profile in crystalline rock and the apparent diffusion coefficient was estimated to be ~ 6E−18 m2/s for 20 nm gold colloids. This technique can be applied to the prediction of colloid-facilitated radionuclide transport through water-saturated fractured porous rock for safety assessment of geological disposal for high-level radioactive waste.

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Preliminary evaluation of SEM/EDS technique for the determination of colloid diffusion coefficient in granite matrix

Abstract

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