Details Sample Characterization
| Mineral: |
Nontronite |
| Reference: |
JLDBF08 |
| Supplier: |
Clay Minerals Society Source Clays Repository |
| Trade Name: |
NAu-2 (Nontronite, brown color, Al-poor+tetr.hedr. Fe,Uley Mine,South Australia) |
| Preparation: |
sonicated briefly in order to disperse loosely aggregated particles, and then centrifuged to obtain a size fraction of 0.02–0.5 µm.
homoionized NAu-2 in Na prepared: treated by repetitive ion exchange (4 times) in aqueous 1.0M NaClO4 solution (Bukka et al., 1992; Baeyens and Bradbury, 1997; Bradbury and Baeyens, 2005; Hofstetter et al., 2006); dialyzed with
Milli-Q water for a week, introducing fresh water twice a day in order to wash out any residual cations and perchlorate. The dialyzed NAu-2 was freeze-dried and stored. |
| CEC: |
69.7 ± 7.3 meq/100g |
| Sample characterized via: |
☑ Scanning electron microscope (SEM)
☑ Transmission electron microscopy (TEM)
☑ X-ray Diffraction (XRD)
|
| Comment: |
0.02 - 0.5 µm fraction |
| |
1 data sets were retrieved
|
