Table 1 Chemical compositions of the RHA analyzed by AAS
From: Synthesis of silica nanoparticles from Vietnamese rice husk by sol–gel method
Component (wt.%) | K2O | Al2O3 | Fe2O3 | CaO | MgO | Na2O | SiO2 |
---|---|---|---|---|---|---|---|
Before treatment | 0.39 | 0.48 | 0.15 | 0.73 | 0.55 | 0.12 | 96.15 |
After treatment | 0.01 | 0.06 | 0.04 | 0.04 | 0.06 | 0.01 | 99.08 |