Microwave-hydrothermal preparation method for cobalt sulfide nanometer crystals
A technology of microwave hydrothermal and cobalt sulfide, applied in chemical instruments and methods, nanotechnology, inorganic chemistry, etc., can solve problems such as energy loss, and achieve the effects of short reaction cycle, low preparation cost and low temperature
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Embodiment 1
[0018] 1) Take 1.16g of analytically pure cobalt nitrate hexahydrate (Co(NO 3 ) 2 ·6H 2 O) Dissolve in deionized water and configure to 40mL red transparent solution A;
[0019] 2) Take 0.30 g of analytical pure thioacetamide (TAA), dissolve it in solution A, and stir to obtain solution B;
[0020] 3) Add 1.0 mL of ammonia water with a mass concentration of 5% to solution B to obtain an aqueous solution C containing precipitation;
[0021] 4) Add the aqueous solution C uniformly to the microwave hydrothermal reaction kettle, and control its filling ratio to 60%; seal the hydrothermal reaction kettle and put it into the microwave hydrothermal reactor; control the hydrothermal temperature at 180°C, and react for 60 minutes. After the reaction, cool to room temperature naturally;
[0022] 5) After the reaction is over, open the microwave hydrothermal reactor, collect samples by centrifugation, wash the collected samples with deionized water and ethanol, and put them in a vacuum drying ov...
Embodiment 2
[0025] 1) Take 0.58g of analytically pure cobalt nitrate hexahydrate (Co(NO 3 ) 2 ·6H 2 O) Dissolve in deionized water and prepare 50 mL of red transparent solution A;
[0026] 2) Take 0.15g of analytical pure thioacetamide (TAA), dissolve it in solution A, and stir to obtain solution B;
[0027] 3) Add 2.3 mL of ammonia water with a mass concentration of 5% to solution B to obtain an aqueous solution C containing precipitation;
[0028] 4) Add the aqueous solution C evenly into the microwave hydrothermal reactor, and control its filling ratio to 80%; seal the hydrothermal reactor and put it into the microwave hydrothermal reactor; control the hydrothermal temperature at 170°C, and react for 60 minutes. After the reaction, cool to room temperature naturally;
[0029] 5) After the reaction is over, open the microwave hydrothermal reactor, collect samples by centrifugation, wash the collected samples with deionized water and ethanol, and put them in a vacuum drying oven at 60°C for dryi...
Embodiment 3
[0031] 1) Take 0.87g of analytically pure cobalt nitrate hexahydrate (Co(NO 3 ) 2 ·6H 2 O) Dissolve in deionized water and prepare 60mL of red transparent solution A;
[0032] 2) Take 0.45 g of analytical pure thioacetamide (TAA), dissolve it in solution A, and stir to obtain solution B;
[0033] 3) Add 1.6 mL of ammonia water with a mass concentration of 5% to solution B to obtain an aqueous solution C containing precipitation;
[0034] 4) Add the aqueous solution C evenly into the microwave hydrothermal reaction kettle, and control the filling ratio to 40%; seal the hydrothermal reaction kettle and put it into the microwave hydrothermal reactor; control the hydrothermal temperature at 150°C and react for 120 minutes, After the reaction, cool to room temperature naturally;
[0035] 5) After the reaction is over, open the microwave hydrothermal reactor, collect samples by centrifugation, wash the collected samples with deionized water and ethanol, and put them in a vacuum drying oven ...
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