Copper doped composite magnetic nano-material and preparation and application thereof
A magnetic composite nano- and copper-doped technology, which is applied in the directions of alkali metal compounds, other chemical processes, chemical instruments and methods, etc., can solve the problems such as the stability of magnetic nano-composite materials needs to be evaluated, the structure of magnetic particles is damaged, and the preparation process is complicated. , to achieve the effect of increasing the specific surface area of the product, enhancing the affinity, and simplifying the preparation process
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Embodiment 1
[0033] Embodiment 1: Synthetic magnetic Cu-Fe 3 o 4 .
[0034] 0.0085 g CuCl 2 2H 2 O with 1.35 g FeCl 3 ·6H 2 O Add 36 mL of ethylene glycol, ultrasonically disperse evenly (the initial molar ratio of copper ions to iron ions is 1:100), then add 3.6 g of NaAc, stir vigorously for 0.5 h, then put it into a hydrothermal reactor at 200°C for 8 h; Magnetic separation, washing with water and absolute ethanol three times each, and vacuum drying at 60 °C for 12 h to obtain mesoporous Cu-Fe 3 o 4 Microsphere a, and carry out SEM / TEM morphology characterization to the product, see figure 1 (A / E), the obtained product particle size is 440 nm, specific surface area is 49.44 m 2 g -1 , the total pore volume is 5.24cm 3 g -1 nm -1 , the zeta potential is 6.22 mV, and the magnetism is 106.4 emug -1 .
Embodiment 2
[0035] Embodiment 2: Synthetic magnetic Cu-Fe 3 o 4 .
[0036] 0.0425 g CuCl 2 2H 2 O with 1.35 g FeCl 3 ·6H 2 O was added with 36 mL of ethylene glycol, ultrasonically dispersed evenly (the initial molar ratio of copper ions to iron ions was 1:20), and then 3.6 g of NaAc was added, stirred vigorously for 0.5 h, and then placed in a hydrothermal reactor for 8 h at 200 °C; Separated, washed with water and ethanol three times each, and dried in vacuum at 60 °C for 12 h to obtain mesoporous Cu-Fe 3 o 4 microsphere b, and carry out SEM / TEM morphology characterization of the product, see figure 1 (B / F), the resulting product particle size: 560 nm, specific surface area: 49.44 m 2 g -1 , the total pore volume is 5.24cm 3 g -1 nm -1 , the zeta potential is 11.2 mV, and the magnetism is 102.56 emu g -1 .
Embodiment 3
[0037] Embodiment 3: Synthetic magnetic Cu-Fe 3 o 4 .
[0038] 0.170 g CuCl 2 2H 2 O with 1.35 g FeCl 3 ·6H 2 O was added to 36 mL of ethylene glycol (the initial molar ratio of copper ions to iron ions was 1:5), ultrasonically dispersed, and then 3.6 g of NaAc was added, stirred vigorously for 0.5 h, and then placed in a hydrothermal reactor for 8 h at 200 °C; Separated, washed with water and ethanol three times each, and dried in vacuum at 60 °C for 12 h to obtain mesoporous Cu-Fe 3 o 4 microsphere c, and carry out SEM / TEM morphology characterization of the product, see figure 1 (C / G), the obtained product particle size: 240 nm, specific surface area: 88.06 m 2 g -1 , the total pore volume is 11.24cm 3 g -1 nm -1 , with a magnetic zeta potential of 12.4 mV and a magnetic value of 87.45 emu g -1 .
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