Fluorinated titanium dioxide/carbon /ferroferric oxide three-layer nanometer composite material and preparation method thereof
A nanocomposite material, fluorinated titanium dioxide technology, applied in the field of photocatalytic materials, can solve the problems of limited degradation of pollutants, difficulty in recycling, and increased application costs, and achieve the effects of broad theoretical research significance, low cost, and improved catalytic performance
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Embodiment 1
[0017] 1) Take 9 ml of ethylene glycol clarified solution of ferric chloride with a concentration of 0.01 g / ml, and then add sodium acetate and hexamethylenediamine to it in turn, so that the concentration of sodium acetate in the mixed solution is 0.01 g / ml, and hexamethylenediamine The concentration of the amine was 0.1 g / ml, and the mixed solution was transferred to a closed heating container with a volume of 15 ml, and reacted at a temperature of 190 ° C for 72 hours, and the obtained precipitate was washed with deionized water and ethanol three times, respectively, and vacuumed for 60 ℃ and dried for 6 h to obtain Fe3O4 particles with a particle size of 100 nm.
[0018] 2) Soak ferric oxide particles (20 mg) prepared in step 1) in 20 ml of nitric acid solution with a concentration of 0.05 mol / L, ultrasonicate for 30 minutes, wash with deionized water until neutral, and then disperse in 48 ml 0.3 mol / L glucose solution, transferred to a closed reactor with a volume of 60 m...
Embodiment 2
[0022] 1) Take 9 ml of ferric chloride ethylene glycol clarified solution with a concentration of 0.03 g / ml, and then add sodium acetate and hexamethylenediamine to it in turn, so that the concentration of sodium acetate in the mixed solution is 0.2 g / ml, and hexamethylenediamine The concentration of the amine was 0.5 g / ml, and the mixed solution was transferred to a closed heating container with a volume of 15 ml, and reacted at a temperature of 200 °C for 48 hours, and the obtained precipitate was washed with deionized water and ethanol three times, respectively, and then vacuumed for 60 ℃ and dried for 6 h to obtain Fe3O4 particles with a particle size of 120 nm.
[0023] 2) Soak ferric oxide particles (20 mg) obtained in step 1) in 20 ml of nitric acid solution with a concentration of 0.1 mol / L, ultrasonicate for 10 minutes, wash with deionized water until neutral, and then disperse in 48 ml 0.5 mol / L glucose solution, transferred to a closed reactor with a volume of 60 ml...
Embodiment 3
[0026] 1) Take 9 ml of ethylene glycol clarified solution of ferric chloride with a concentration of 0.3 g / ml, and then add sodium acetate and hexamethylenediamine to it in turn, so that the concentration of sodium acetate in the mixed solution is 0.5 g / ml, and hexamethylenediamine The concentration of the amine was 1.0 g / ml, and the mixed solution was transferred to a closed heating container with a volume of 15 ml, and reacted at a temperature of 220 °C for 4 hours, and the obtained precipitate was washed with deionized water and ethanol three times, respectively, and vacuumed for 60 Dry at ℃ for 6 h to obtain Fe3O4 particles with a particle size of 150 nm.
[0027]2) Soak ferric oxide particles (40 mg) prepared in step 1) in 40 ml of nitric acid solution with a concentration of 0.5 mol / L, ultrasonicate for 5 minutes, wash with deionized water until neutral, and then disperse in 48 ml 3.0 mol / L glucose solution, transferred to a closed reactor with a volume of 60 ml, and rea...
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