Preparation method of gamma-copper iodide
A technology of cuprous iodide and copper flakes, which is applied in the field of preparation of γ-cuprous iodide, can solve the problems of decreased iodine utilization rate, difficulty in product separation, waste of iodine resources, etc., and achieves easy control of reaction conditions and particle size distribution. Uniform, yield-enhancing effect
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[0017] Example one
[0018] A method for preparing nano γ-cuprous iodide, the steps are as follows:
[0019] (1) Preparation of iodine solution: Dissolve 0.51 g of iodine in a round bottom flask containing 2 g of 1-butyl 3-methylimidazole tetrafluoroborate ionic liquid, seal the round bottom flask and place the round bottom flask The internal ionic liquid is heated to 100°C and kept at 100°C for a period of time until the elemental iodine is completely dissolved to obtain an iodine solution;
[0020] (2) Preparation of cuprous iodide: Put the polished copper flakes (about 0.38g) into the iodine solution, continue to control the temperature at 100°C, heat and stir until the color of the solution turns colorless, cool to room temperature, and take out the bottom of the solution The precipitate was washed with deionized water and ethanol for several times, and then dried in vacuum to obtain 0.750 g of white γ-cuprous iodide. The yield of the product was 98.1%.
[0021] by figure 1 It ca...
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[0022] Example two
[0023] A preparation method of γ-cuprous iodide, the steps are as follows:
[0024] (1) Preparation of iodine solution: Dissolve 0.51 g of iodine in a round bottom flask containing 2 g of 1-butyl 3-methylimidazole tetrafluoroborate ionic liquid, seal the round bottom flask and place the round bottom flask The internal ionic liquid is heated to 150°C and kept at 150°C for a period of time until the elemental iodine is completely dissolved to obtain an iodine solution;
[0025] (2) Preparation of cuprous iodide: Put the polished copper flakes (about 0.38g) into the iodine solution, continue to control the temperature at 150°C, heat and stir until the color of the solution turns colorless, cool to room temperature, and take out the bottom of the solution The precipitate was washed with deionized water and ethanol for many times, and dried in vacuum to obtain 0.755 g of white nano-cuprous iodide. The yield of the product was 98.7%.
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[0026] Example three
[0027] A preparation method of γ-cuprous iodide, the steps are as follows:
[0028] (1) Preparation of iodine solution: Dissolve 0.51 g of iodine in a round bottom flask containing 2 g of 1-butyl 3-methylimidazole hexafluorophosphate ionic liquid. Seal the round bottom flask and place it in the round bottom flask. The ionic liquid is heated to 80°C and kept at 80°C for a period of time until the elemental iodine is completely dissolved to obtain an iodine solution;
[0029] (2) Preparation of cuprous iodide: Put the polished copper sheet (about 0.38g) into the iodine solution, continue to control the temperature at 80℃, heat and stir until the color of the solution turns colorless, cool to room temperature, and take out the bottom of the solution The precipitate was washed with deionized water and ethanol for several times, and then dried in vacuum to obtain 0.745 g of white γ-cuprous iodide. The yield of the product was 97.4%.
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