Synthesis, stability, and emission analysis of magnetite nanoparticle-based biofuels

Journal of Engineering and Applied Science

Table 1 Summary of magnetite nanoparticles synthesis by co-precipitation method using Ultra-sonicator

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	40^oC	7	[59]
1:2M FeSO₄ 7H₂O and FeCl₃	3.2g NaOH	55^oC	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 & 90^oC	8.19	[63]
2.17g FeCl₂& 3.01g FeCl₃	16.8 g KOH	sonication 10 kHz for 60 min	8.01	[63]
1.5:1M FeCl₃∙6H₂O & FeSO₄∙7H₂O	3.5M NH₄OH	Stirring and mixing at 50^oC	15.6	[64]
1.5:1M FeCl₃∙6H₂O & FeSO₄∙7H₂O	3.5M NH₄OH	sonication	14.6	[64]