Method for preparing hollow copper sulphide crystal with nano-twin structure
A technology of nano twinning and copper sulfide, applied in the field of preparation of hollow copper sulfide crystals
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Embodiment 1
[0018] This embodiment contains the preparation method of the hollow copper sulfide crystal of nano-twin structure, comprises the following steps:
[0019] Step 1: Na 2 Mix 0.05g of S powder, 0.001g of NaOH powder and 100mL of absolute ethanol to prepare a solution, and then use a magnetic stirrer to stir the above solution for 5min;
[0020] Step 2: The shape is hexahedron, the particle size is 5.0μm, and the weight is 0.2g Cu 2 O powder is added to the mixed solution prepared in step 1, and stirred for 0.01min to obtain Cu 2 OC x S y Core-shell structure crystal;
[0021] Step 3: the Cu obtained in Step 2 2 OC x S y The core-shell structure crystal was first centrifuged and washed with absolute ethanol at 6000rpm for 3 times, each time for 5min, and then the Cu 2 OC x S y The core-shell structure crystals were placed in a vacuum drying oven and dried at 30°C for 5 hours to obtain pure and dry Cu 2 OC x S y Core-shell structure crystal;
[0022] Step 4: To the p...
Embodiment 2
[0026] This embodiment contains the preparation method of the hollow copper sulfide crystal of nano-twin structure, comprises the following steps:
[0027] Step 1: Na 2 Mix 25.0g of S powder, 15.0g of NaOH powder and 250mL of absolute ethanol to prepare a solution, and then use a magnetic stirrer to stir the above solution for 20min;
[0028] Step 2: Shape Cu 2 O powder is added to the mixed solution prepared in step 1, and stirred for 5 hours to obtain Cu 2 OC x S y Core-shell structure crystal;
[0029] Step 3: the Cu obtained in step 2 2 OC x S y The core-shell structure crystals were first centrifuged and washed with absolute ethanol at 6000 rpm for 5 times, each time for 1 min, and finally the Cu 2 OC x S y The core-shell structure powder is placed in a vacuum drying oven and dried at 60°C for 2 hours to obtain pure and dry Cu 2 OC x S y Core-shell structure crystal;
[0030] Step 4: To the pure dry Cu obtained in Step 3 2 OC x S y Deionized water is adde...
Embodiment 3
[0034] This embodiment contains the preparation method of the hollow copper sulfide powder of nano-twin structure, comprises the following steps:
[0035] Step 1: Na 2 Mix 5.8g of S powder, 2.1g of NaOH powder and 150mL of absolute ethanol to prepare a solution, and then use a magnetic stirrer to stir the above solution for 12min;
[0036] Step 2: Shape the octahedron, the particle size is 1.0μm, and the weight is 1.0g Cu 2 O powder is added to the mixed solution prepared in step 1, and stirred for 0.5h to obtain Cu 2 OC x S y Core-shell structure crystal;
[0037] Step 3: the Cu obtained in Step 2 2 OC x S y The core-shell structure crystals were first centrifuged and washed with absolute ethanol at 6000rpm for 4 times, each time for 3min, and finally the Cu 2 OC x S y The core-shell structure powder is placed in a vacuum drying oven and dried at a temperature of 40°C for 3 hours to obtain pure and dry Cu 2 OC x S y core-shell structure;
[0038] Step 4: To the ...
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