Research Article
Green Synthesis and Characterization of Biosilica Produced from Sugarcane Waste Ash
Table 1
Parameters of the biosilica synthesis process.
| | Samples | Alkaline fusion | Hydrothermal treatment | Silica gel | | Time (h) | Agitation time (h) | Time (h) | Temperature (°C) | Silica gel formation | (g) | Synthesis product |
| | BS1 | 1 | 24 | 1 | 100 | No | — | — | | BS2 | 1 | 24 | 2 | 100 | Yes | 0.232 | Amorphous | | BS3 | 1 | 24 | 3 | 100 | Yes | 0.248 | Amorphous | | BS4 | 1 | 24 | 6 | 100 | Yes | 0.366 | Amorphous | | BS5 | 1 | 24 | 20 | 100 | Yes | 0.431 | Amorphous | | BS6 | 1 | 24 | 24 | 100 | Yes | 0.475 | n.a | | BS7 | 0 | 0 | 3 | 100 | No | — | — | | BS8 | 1 | 24 | 2 | 90 | Yes | 0.388 | n.a | | BS9 | 1 | 24 | 3 | 90 | Yes | 0.402 | Amorphous | | BS10 | 1 | 24 | 6 | 90 | Yes | 0.530 | Amorphous | | BS11 | 1 | 24 | 20 | 90 | Yes | 0.689 | Amorphous | | BS12 | 1 | 24 | 20 | 90 | Yes | 0.742 | Amorphous |
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= mass of product formed; n.a = not totally amorphous; BS12 = aging temperature of 80°C.
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