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Ruth H. Ellerbrock, Mathias Stein, Jörg Schaller
There is increased interest in the terrestrial silicon cycle in the last decades as its different compounds and species have large implications for ecosystem performance in terms of soil nutrient and water availability, ecosystem productivity as well as ecological aspects such as plant-microbe and plant-animal feedbacks. The currently existing analytical methods are limited. Fourier-transform infrared spectroscopy (FTIR) analysis is suggested being a promising tool to differentiate between the different Si species. We report here on the differentiation of varying Si-species/Si-binding (in synthetic material) using FTIR-analyses. Therefore, we collected FTIR-spectra of five different amorphous silica, Ca-silicate, sodium silicate (all particulate), a water-soluble fraction of amorphous silica and soil affected by volcanic activity and compared their spectra with existing data. A decrease of the internal order of the materials analyzed was indicated by peak broadening of the Si-O-Si absorption band. Peak shifts at this absorption band were induced by larger ions incorporated in the Si-O-Si network. Additionally, short-range ordered aluminosilicates (SROAS) have specific IR absorption bands such as the Si-O-Al band. Hence, SROAS and Si phases containing other ions can be distinguished from pure amorphous Si species using FTIR-analyses.
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Ellerbrock, R. H., Stein, M., & Schaller, J. (2022). Comparing amorphous silica, short-range-ordered silicates and silicic acid species by FTIR. Scientific Reports, 12(1), 11708. https://doi.org/10.1038/s41598-022-15882-4
Ellerbrock, Ruth H., et al. "Comparing amorphous silica, short-range-ordered silicates and silicic acid species by FTIR." Scientific Reports, vol. 12, no. 1, 2022, pp. 11708, https://doi.org/10.1038/s41598-022-15882-4.
Ellerbrock, Ruth H., Mathias Stein, and Jörg Schaller. "Comparing amorphous silica, short-range-ordered silicates and silicic acid species by FTIR." Scientific Reports 12, no. 1 (2022): 11708. https://doi.org/10.1038/s41598-022-15882-4.
Ellerbrock R. H., Stein M., Schaller J. Comparing amorphous silica, short-range-ordered silicates and silicic acid species by FTIR // Scientific Reports. — 2022. — Vol. 12, № 1. — P. 11708. — URL: https://doi.org/10.1038/s41598-022-15882-4
@article{ellerbrock2022comparing,
title = {{Comparing amorphous silica, short-range-ordered silicates and silicic acid species by FTIR}},
author = {Ruth H. Ellerbrock and Mathias Stein and Jörg Schaller},
journal = {Scientific Reports},
year = {2022},
volume = {12},
number = {1},
pages = {11708},
doi = {10.1038/s41598-022-15882-4},
url = {https://doi.org/10.1038/s41598-022-15882-4}
}TY - JOUR AU - Ellerbrock, Ruth H. AU - Stein, Mathias AU - Schaller, Jörg TI - Comparing amorphous silica, short-range-ordered silicates and silicic acid species by FTIR JO - Scientific Reports VL - 12 IS - 1 SP - 11708 PY - 2022 DA - 2022/07/09 DO - 10.1038/s41598-022-15882-4 UR - https://doi.org/10.1038/s41598-022-15882-4 ER -
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