Details
| Original language | English |
|---|---|
| Title of host publication | Organosilicon Chemistry Set |
| Subtitle of host publication | From Molecules to Materials |
| Publisher | Wiley-Blackwell |
| Pages | 17-21 |
| Number of pages | 5 |
| ISBN (electronic) | 9783527620777 |
| ISBN (print) | 9783527323470 |
| Publication status | Published - 26 Jul 2005 |
Abstract
Biomineralized silicas are generally described as amorphous gel-like or opaline-type varieties of hydrated SiO2. Our X-ray absorption spectroscopic investigation reveals mid-range order in one of these materials (rice husk silicas) at a length scale of 4-10 Å. The degree of ordering depends on the method used to extract the silica from the samples. This is clearly shown by the investigation of three differently treated rice husk silicas. As confirmed by N2 sorption experiments, these commercially interesting materials exhibit high specific surface areas and broad pore size distributions.
Keywords
- BET isotherme, Biomineralization, Rice husks, Silica, XANES
ASJC Scopus subject areas
- Chemistry(all)
- General Chemistry
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Organosilicon Chemistry Set: From Molecules to Materials. Wiley-Blackwell, 2005. p. 17-21.
Research output: Chapter in book/report/conference proceeding › Contribution to book/anthology › Research › peer review
}
TY - CHAP
T1 - Investigations on the Nature of Biomineralized Silica by X-Ray Absorption Spectroscopy and Sorption Measurements
AU - Behrens, Peter
AU - Schechner, Gallus
AU - Fröba, Michael
AU - Pillep, Bernd
AU - Wong, Joe
PY - 2005/7/26
Y1 - 2005/7/26
N2 - Biomineralized silicas are generally described as amorphous gel-like or opaline-type varieties of hydrated SiO2. Our X-ray absorption spectroscopic investigation reveals mid-range order in one of these materials (rice husk silicas) at a length scale of 4-10 Å. The degree of ordering depends on the method used to extract the silica from the samples. This is clearly shown by the investigation of three differently treated rice husk silicas. As confirmed by N2 sorption experiments, these commercially interesting materials exhibit high specific surface areas and broad pore size distributions.
AB - Biomineralized silicas are generally described as amorphous gel-like or opaline-type varieties of hydrated SiO2. Our X-ray absorption spectroscopic investigation reveals mid-range order in one of these materials (rice husk silicas) at a length scale of 4-10 Å. The degree of ordering depends on the method used to extract the silica from the samples. This is clearly shown by the investigation of three differently treated rice husk silicas. As confirmed by N2 sorption experiments, these commercially interesting materials exhibit high specific surface areas and broad pore size distributions.
KW - BET isotherme
KW - Biomineralization
KW - Rice husks
KW - Silica
KW - XANES
UR - http://www.scopus.com/inward/record.url?scp=84959171172&partnerID=8YFLogxK
U2 - 10.1002/9783527620777.ch3c
DO - 10.1002/9783527620777.ch3c
M3 - Contribution to book/anthology
AN - SCOPUS:84959171172
SN - 9783527323470
SP - 17
EP - 21
BT - Organosilicon Chemistry Set
PB - Wiley-Blackwell
ER -