From: Synthesis, stability, and emission analysis of magnetite nanoparticle-based biofuels
Precursors | Precipitating Agent | Reaction conditions | Particle Size (nm) | Ref |
---|---|---|---|---|
1.9g FeCl2 4H2O & 5.4 g FeCl3 6H2O | 6 ml of NH4OH | Room temp. for 30 min | 216 ± 0.5 | [57] |
1.5:1 M FeCl3& FeSO4.7H2O | NaOH | 65°C for 30 min | _ | [58] |
1.5 mmol FeCl24H2O & 3 mmol FeCl36H2O | 10 ml NH4OH | 40oC | 7 | [59] |
1:2M FeSO4 7H2O and FeCl3 | 3.2g NaOH | 55oC | 12.2 - 2.9 | [60] |
1.5:1M FeCl3 and FeSO4 7H2O | NaOH | 65°C for 30 min | 15 | [48] |
2M FeCl2 4H2O and 3M FeCl3 6H2O | 0.3 mol NH4OH | 50°C for 30 min | 11.4 | [61] |
FeCl2 4H2O and FeCl3 6H2O | 1M NaOH | 30 min | _ | [54] |
1:2 M FeCl2 4H2O & FeCl3 6H2O | NaOH | sonication | _ | [62] |
2.17g FeCl2& 3.01g FeCl3 | 16.8 g KOH | stirring 300 rpm & 90oC | 8.19 | [63] |
sonication 10 kHz for 60 min | 8.01 | |||
1.5:1M FeCl3∙6H2O & FeSO4∙7H2O | 3.5M NH4OH | Stirring and mixing at 50oC | 15.6 | [64] |
sonication | 14.6 |