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

Center for Environmental Studies

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

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
State	Published - 1 Dec 2019

Keywords

Apparent diffusion coefficient (D)
Colloids
Granite
SEM/EDS

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.1007/s10967-019-06915-w

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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.",

keywords = "Apparent diffusion coefficient (D), Colloids, Granite, SEM/EDS",

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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

Y1 - 2019/12/1

N2 - 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.

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.

KW - Apparent diffusion coefficient (D)

KW - Colloids

KW - Granite

KW - SEM/EDS

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DO - 10.1007/s10967-019-06915-w

M3 - 期刊論文

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SN - 0236-5731

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EP - 1808

JO - Journal of Radioanalytical and Nuclear Chemistry

JF - Journal of Radioanalytical and Nuclear Chemistry

IS - 3

ER -

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

Abstract

Keywords

UN SDGs

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