Table 2 Comparison (wt%) of Ethiopian Raw diatomite and diatomite from different regions.
From: Adsorptive removal of Cr(VI) from water using silver nanoparticle modified-diatomite nanocomposite
Oxides | Ethiopian diatomite | Iranian diatomite | Egyptian diatomite | Chinese diatomite | |
|---|---|---|---|---|---|
This work | Previous work41 | Tajmiri et al.42 | Alyosef et al37. | (Sun et al.43) | |
SiO2 | 75.8 | 81.6 | 80.3 | 38.2–64.5 | 66.88–81.78 |
Al2O3 | 7.3 | 6.7 | 5.6 | 2.1–10.7 | 5.49–17.49 |
Fe2O3 | 3.6 | 4.1 | 1.9 | 0.8–6.3 | 2.01–3.36 |
CaO | 0.8 | 3.6 | 2.2 | 1.8–26.4 | 0.38–1.05 |
MgO | 0.16 | 0.8 | 1.0 | nd | 0.17–0.91 |
Na2O | 1.32 | 0.4 | 0.6 | nd | 0.29–0.45 |
SO3 | nd | nd | 1.4 | 0.3–2.0.3.0 | nd |
K2O | 0.22 | 1.0 | 0.5 | nd | 1.07 |
MnO | 0.08 | nd | 0.2 | nd | nd |
TiO2 | 0.18 | 1.6 | nd | nd | nd |
P2O5 | 0.08 | nd | nd | nd | 0.024–0.075 |
LOI | 5.2 | nd | 5.7 | 16.7–26.8 | 7.00–8.78.00.78 |
