Preparation method of spherical ferriferrous oxide
A ferric oxide, spherical technology is applied in the preparation field of synthesizing spherical ferric oxide nanoparticles by solvothermal synthesis, can solve the problems of complex process, large-scale application limitation and the like, achieves simple process, short reaction time, Size controllable effect
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Embodiment 1
[0023] According to the preparation process, 6.36g of trisodium citrate dihydrate was dissolved in 400ml of ethylene glycol at normal temperature and pressure, and stirred to obtain a clear solution, which was designated as solution A. At the same time, 16.38g of ferric chloride was dissolved in 200ml of ethylene glycol to obtain a clear solution, which was designated as solution B. Anhydrous sodium acetate (30 g) and deionized water (21 g) with a mass ratio of 1:0.7 were added to solution A, and stirred until completely dissolved to obtain solution C. Then add solution B to solution C, stir to make it fully mixed to obtain brown-black clear solution D. The brown-black clear solution D was placed in a high-temperature and high-pressure reactor with a volume of 1 L, and the temperature was set at 200° C., and reacted at this temperature for 10 h. After the reaction is completed, the resulting mixed solution is separated. The obtained black solid is washed several times with d...
Embodiment 2
[0032] According to the preparation process, 6.36g of trisodium citrate dihydrate was dissolved in 400ml of ethylene glycol at normal temperature and pressure, and stirred to obtain a clear solution, which was designated as solution A. At the same time, 16.38g of ferric chloride was dissolved in 200ml of ethylene glycol to obtain a clear solution, which was designated as solution B. Anhydrous sodium acetate (30 g) and deionized water (15 g) with a mass ratio of 1:0.5 were added to solution A, stirred until completely dissolved to obtain solution C. Then add solution B to solution C, stir to make it fully mixed to obtain brown-black clear solution D. The brown-black clear solution D was placed in a high-temperature and high-pressure reactor with a volume of 1 L, and the temperature was set at 200° C., and reacted at this temperature for 10 h. After the reaction is completed, the resulting mixed solution is separated. The obtained black solid was washed several times with deio...
Embodiment 3
[0035]According to the preparation process, 6.36g of trisodium citrate dihydrate was dissolved in 400ml of ethylene glycol at normal temperature and pressure, and stirred to obtain a clear solution, which was designated as solution A. At the same time, 16.38g of ferric chloride was dissolved in 200ml of ethylene glycol to obtain a clear solution, which was designated as solution B. Anhydrous sodium acetate (30 g) and deionized water (9 g) with a mass ratio of 1:0.3 were added to solution A, stirred until completely dissolved to obtain solution C. Then add solution B to solution C, stir to make it fully mixed to obtain brown-black clear solution D. The brown-black clear solution D was placed in a high-temperature and high-pressure reactor with a volume of 1 L, and the temperature was set at 200° C., and reacted at this temperature for 10 h. After the reaction is completed, the resulting mixed solution is separated. The obtained black solid was washed several times with deioni...
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