Bernard, Ellina; Lothenbach, Barbara; Pochard, Isabelle; Cau-Dit-Coumes, Céline (2019). Alkali binding by magnesium silicate hydrates. Journal of the American Ceramic Society, 102(10), pp. 6322-6336. American Ceramic Society 10.1111/jace.16494
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The binding of Na+, K+, and Li+ by magnesium silicate hydrate (M–S–H) was investigated
in batch sorption experiments. Sorption isotherms and cation exchange measurements indicated the binding of alkalis in cation exchange sites compensating the negative surface charge of M–S–H. Higher pH values led to further deprotonation of the silanol groups and a higher alkali uptake by M–S–H. No significant incorporation of alkalis in the main silica or magnesium oxide sheets was observed. However, the silica sheets were less polymerized in the presence of higher alkali hydroxide concentrations.
Item Type: |
Journal Article (Original Article) |
|---|---|
Division/Institute: |
08 Faculty of Science > Institute of Geological Sciences 08 Faculty of Science > Institute of Geological Sciences > Rock-Water Interaction |
UniBE Contributor: |
Bernard, Ellina Françoise Michelle |
Subjects: |
500 Science > 550 Earth sciences & geology 600 Technology > 690 Building & construction |
ISSN: |
0002-7820 |
Publisher: |
American Ceramic Society |
Language: |
English |
Submitter: |
Ellina Françoise Michelle Bernard |
Date Deposited: |
03 Dec 2019 10:45 |
Last Modified: |
05 Dec 2022 15:33 |
Publisher DOI: |
10.1111/jace.16494 |
BORIS DOI: |
10.7892/boris.135737 |
URI: |
https://boris.unibe.ch/id/eprint/135737 |
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