a cube-shaped fe 2 o 3 Nanomaterials and their preparation methods
A technology of nanomaterials and cubes, applied in nanotechnology, nanotechnology, nanotechnology for materials and surface science, etc., can solve problems such as inhomogeneous crystal structures, achieve uniform appearance, reduce production costs, and promote efficient processing Effect
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment 1
[0030] 2mmol FeCl 3 ·6H 2 O and 1 mmol FeSO 4 ·7H 2 O was dissolved in 20mL distilled water, stirred for 0.5h;
[0031] Then add 29mmol urea wherein, after the urea dissolves completely, the reaction solution in the beaker is transferred to the hydrothermal reaction kettle of polytetrafluoroethylene;
[0032] Seal the hydrothermal reactor and react at 150°C for 72 hours. After the reaction, take the hydrothermal reactor out of the heating equipment and cool it down to room temperature naturally;
[0033] The cooled reaction solution is centrifuged with a centrifuge at a speed of 8000rpm / min, centrifuged for 2-3 times, each time for 5min, so as to fully remove unreacted ions and excess urea;
[0034] Use alcohol and deionization to clean the solid matter obtained by centrifugation, and dry it in a drying box;
[0035] Finally, the dried solid was calcined in a muffle furnace at 500 °C for 5 h to obtain cubic Fe 2 o 3 nanomaterials from figure 1 It can be seen that the p...
Embodiment 2
[0037] 2mmol FeCl 3 ·6H 2 O and 1 mmol FeSO 4 ·7H 2 O was dissolved in 20mL distilled water, stirred for 0.5h;
[0038] Then add 30mmol urea wherein, after urea dissolves completely, transfer the reaction solution in the beaker to the hydrothermal reaction kettle of polytetrafluoroethylene;
[0039] Seal the hydrothermal reaction kettle and react at 150°C for 96 hours. After the reaction, take the hydrothermal reaction kettle out of the heating equipment and cool it down to room temperature naturally;
[0040] The cooled reaction solution is centrifuged with a centrifuge at a speed of 8000rpm / min, centrifuged for 2-3 times, each time for 5min, so as to fully remove unreacted ions and excess urea;
[0041] Use alcohol and deionization to clean the solid matter obtained by centrifugation, and dry it in a drying box;
[0042] Finally, the dried solid was calcined in a muffle furnace at 400 °C for 5 h to obtain cubic Fe 2 o 3 nanomaterials from image 3 It can be seen that...
Embodiment 3
[0044] The hydrothermal reaction temperature in Example 1 was changed to 120°C, 140°C, 160°C, and 180°C respectively, and other conditions were kept unchanged. The prepared material had the same morphology as that prepared in Example 1.
PUM
| Property | Measurement | Unit |
|---|---|---|
| particle diameter | aaaaa | aaaaa |
Abstract
Description
Claims
Application Information
Login to View More