Nanometer iron oxide preparation method
A nano-iron oxide, iron salt technology, applied in the directions of iron oxide, iron oxide/iron hydroxide, nanotechnology, etc., can solve the problems of easy agglomeration of nanomaterials, and achieve good dispersibility, easy reaction process and simple preparation method. Effect
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Embodiment 1
[0025] Example 1 Preparation of Nano Iron Oxide 1
[0026] (1) First add 1.0 g FeCl 3 Dissolve in 2.0 mL of absolute ethanol, the solution turns orange when dissolved completely;
[0027] (2) After the dissolution is complete, add 1.0 mL of propylene oxide dropwise;
[0028] (3) After the propylene oxide is added dropwise, continue to stir for 0.5 hours to form a wet gel, dry the wet gel in a vacuum oven at 80°C for 12 hours, and place the dry gel in a muffle furnace for calcination at 500°C for 2 Hours, you can get the product.
[0029] The mass ratio of metal salt and propylene oxide is 1.2:1;
[0030] The mass ratio of metal salt to absolute ethanol is 1:1.6;
[0031] Response time: 0.5 hours;
[0032] Reaction temperature: room temperature;
[0033] Drying temperature: 80 ℃;
[0034] Drying time: 12 hours;
[0035] Calcination temperature: 500°C;
[0036] Calcination time: 2 hours;
[0037] Depend on figure 1 It can be seen that the prepared nano-iron oxide 1...
Embodiment 2
[0038] Example 2 Preparation of Nano Iron Oxide 2
[0039] (1) First, 1.0 g FeCl 3 Dissolve in 2.0 mL of absolute ethanol, the solution turns orange when dissolved completely;
[0040] (2) After the dissolution is complete, add 1.0 mL of propylene oxide dropwise;
[0041] (3) After the propylene oxide is added dropwise, continue to stir to form a wet gel, place the wet gel in a high-pressure reactor at 170°C for hydrothermal reaction for 11 hours, then cool to room temperature, centrifuge the product, and dry it at 80°C 12 hours, you can get the product.
[0042] The mass ratio of metal salt and propylene oxide is 1.2:1;
[0043] The mass ratio of metal salt to absolute ethanol is 1:1.6;
[0044] Response time: 11 hours;
[0045] Reaction temperature: 170°C;
[0046] Drying temperature: 80 ℃;
[0047] Drying time: 12 hours;
[0048] The phase composition and structure of nano iron oxide 2 were analyzed by X-ray powder diffraction (XRD), scanning electron microscope (SE...
Embodiment 3
[0049] Example 3 Preparation of Nano Iron Oxide 3
[0050] (1) First, 1.0 g FeCl 3 Dissolve in 2.0 mL of absolute ethanol, the solution turns orange when dissolved completely;
[0051] (2) After the dissolution is complete, add 0.1 g of anionic surfactant sodium dodecylbenzenesulfonate (SDBS) and continue stirring until completely dissolved;
[0052] (3) After the dissolution is complete, add 1.0 mL of propylene oxide dropwise;
[0053] (4) After the propylene oxide is added dropwise, continue to stir to form a wet gel, place the wet gel in a high-pressure reactor at 160°C for a hydrothermal reaction for 12 hours, cool to room temperature after the reaction is complete, and centrifuge the product for 80 The product can be obtained by drying at ℃ for 12 hours.
[0054] The reaction conditions are:
[0055] The mass ratio of metal salt and propylene oxide is 1.2:1;
[0056] The mass ratio of metal salt to absolute ethanol is 1:1.6;
[0057] The mass ratio of metal salt to ...
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