Skip to main content
Journal cover image

X-ray absorption spectroscopy study of immobilization processes for heavy metals in calcium silicate hydrates. 2. Zinc

Publication ,  Journal Article
Rose, J; Moulin, I; Masion, A; Bertsch, PM; Wiesner, MR; Bottero, JY; Mosnier, F; Haehnel, C
Published in: Langmuir
June 12, 2002

Tricalcium silicate (C3S), the major phase of cement-based materials, contains naturally a few hundred parts per million of heavy metals. An X-ray absorption spectroscopy (XAS) study at the Zn K-edge has been carried out to elucidate the binding mechanisms of Zn by calcium silicate hydrates, which is important to predict the long-term behavior of Zn. At low concentration, under the threshold of precipitation of the oxide, oxy hydroxide, and calcium zinc hydroxide, no retardation of the hydration of the C3S has been observed for C3S doped with Zn. A previous 29Si NMR (Moulin, I.; Stone, W.E.E.; Sanz, J.; Bottero, J.-Y.; Mosnier, J.-Y.; Haehnel, C. Langmuir 1999, 15, 2829-2835) study has demonstrated that the structure of the hydrated C3S (called C-S-H for calcium silicate hydrates) does not change if Zn is present initially or not. XAS experiments have shown that Zn tetrahedra are incorporated within the matrix of C-S-H and linked directly at the end of the silicate chains through Zn-O-Si bonds. The Zn-Si distance is ≈3.1 Å. Extended X-ray absorption fine structure results have been confirmed by ab initio calculations including multiple scattering.

Duke Scholars

Published In

Langmuir

DOI

ISSN

0743-7463

Publication Date

June 12, 2002

Volume

17

Issue

12

Start / End Page

3658 / 3665

Related Subject Headings

  • Chemical Physics
 

Citation

APA
Chicago
ICMJE
MLA
NLM
Rose, J., Moulin, I., Masion, A., Bertsch, P. M., Wiesner, M. R., Bottero, J. Y., … Haehnel, C. (2002). X-ray absorption spectroscopy study of immobilization processes for heavy metals in calcium silicate hydrates. 2. Zinc. Langmuir, 17(12), 3658–3665. https://doi.org/10.1021/la001302h
Rose, J., I. Moulin, A. Masion, P. M. Bertsch, M. R. Wiesner, J. Y. Bottero, F. Mosnier, and C. Haehnel. “X-ray absorption spectroscopy study of immobilization processes for heavy metals in calcium silicate hydrates. 2. Zinc.” Langmuir 17, no. 12 (June 12, 2002): 3658–65. https://doi.org/10.1021/la001302h.
Rose J, Moulin I, Masion A, Bertsch PM, Wiesner MR, Bottero JY, et al. X-ray absorption spectroscopy study of immobilization processes for heavy metals in calcium silicate hydrates. 2. Zinc. Langmuir. 2002 Jun 12;17(12):3658–65.
Rose, J., et al. “X-ray absorption spectroscopy study of immobilization processes for heavy metals in calcium silicate hydrates. 2. Zinc.” Langmuir, vol. 17, no. 12, June 2002, pp. 3658–65. Scopus, doi:10.1021/la001302h.
Rose J, Moulin I, Masion A, Bertsch PM, Wiesner MR, Bottero JY, Mosnier F, Haehnel C. X-ray absorption spectroscopy study of immobilization processes for heavy metals in calcium silicate hydrates. 2. Zinc. Langmuir. 2002 Jun 12;17(12):3658–3665.
Journal cover image

Published In

Langmuir

DOI

ISSN

0743-7463

Publication Date

June 12, 2002

Volume

17

Issue

12

Start / End Page

3658 / 3665

Related Subject Headings

  • Chemical Physics