Hydrothermal preparation method and application of magnetic ferroferric oxide nanochain
A technology of ferric tetroxide and nano-chain, applied in the field of nano-materials, can solve the problems of surface modification of unfavorable materials, large irritation of tetrahydrofuran, large particle size of nano-crystal clusters, etc., achieves good potential application prospects, novel and simple preparation method, good repeatability
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[0027] Specific embodiment 1: 2 mol FeCl 3 ·6 H 2 O and 2 mol of anhydrous sodium acetate were added to a 100 ml three-necked flask and mixed thoroughly for 5 minutes. 260 mol of ethylene glycol was quickly added. After mechanical stirring for 20 minutes, a turbid orange-yellow solution was obtained. Then slowly added 60 mol amine surfactant ethylene diamine, and mechanically fully stirred for 30 minutes to obtain an orange viscous liquid, stop stirring, measure 70 ml of the mixed liquid to the polytetrafluoroethylene high pressure reactor, put it into the iron shell to seal, put it in React for 8 hours in a constant temperature oven at 180 ℃. After the PTFE autoclave is naturally cooled to room temperature, taken out, ultrasonically cleaned with absolute ethanol several times until the particles are clean, placed in a vacuum drying oven at a temperature of 60 ℃ for 12 hours to obtain magnetic ferroferric oxide nanochains.
[0028]
Example Embodiment
[0029] Specific embodiment two: 2mol FeCl 3 ·6 H 2 O and 7 mol of anhydrous sodium acetate were added to a 100 ml three-necked flask and mixed thoroughly for 5 minutes. 290 mol of ethylene glycol was quickly added. After mechanical stirring for 20 minutes, a cloudy orange-yellow solution was obtained, and then slowly added 82 mol amine surfactant triethylenetetramine, and mechanically fully stirred for 30 minutes to obtain an orange viscous liquid, stop stirring, measure 60 ml of the mixed liquid to the polytetrafluoroethylene autoclave, put it into the iron shell to seal, set Put it into a 170 ℃ constant temperature oven and react for 7.5 hours. After the PTFE autoclave is naturally cooled to room temperature, taken out, ultrasonically cleaned with absolute ethanol several times until the particles are clean, placed in a vacuum drying oven at a temperature of 60 ℃ for 12 hours to obtain magnetic ferroferric oxide nanochains.
[0030]
Example Embodiment
[0031] Specific embodiment three: 2 mol FeCl 3 ·6 H 2 O and 10 mol of anhydrous sodium acetate were added to a 100 ml three-necked flask and mixed thoroughly for 5 minutes. 360 mol of ethylene glycol was quickly added. After mechanical stirring for 20 minutes, a turbid orange-yellow solution was obtained, and then 100 was slowly added. mol of amine surfactant disodium ethylenediaminetetraacetate, and mechanically fully stirred for 30 minutes to obtain an orange viscous liquid, stop stirring, measure 80 ml of the mixed liquid to the polytetrafluoroethylene high-pressure reactor, and put iron The shell is closed and placed in a constant temperature oven at 200°C for 9 hours of reaction. After the PTFE autoclave is naturally cooled to room temperature, taken out, ultrasonically cleaned with absolute ethanol several times until the particles are clean, placed in a vacuum drying oven at a temperature of 60 ℃ for 12 hours to obtain magnetic ferroferric oxide nanochains.
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