Preparation method of cadmium sulfide nanometer material
A nanomaterial, cadmium sulfide technology, applied in chemical instruments and methods, chemical/physical processes, physical/chemical process catalysts, etc., can solve the problems of poor controllability of material performance, overly responsible preparation process, and unsuitable for large-scale production. To achieve the effect of controllable material performance, low cost and high activity stability
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Embodiment 1
[0020] Disperse 0.164g of cadmium chloride and 0.128g of sublimed sulfur in a mixed solution of 24mL of diethylenetriamine and 12mL of deionized water, stir at room temperature at a speed of 500 rpm for 60 minutes to obtain a uniform dispersion, and then The dispersion liquid was transferred to a high-pressure reactor, and placed in a vacuum blast drying oven with a set temperature of 80° C. for 48 hours.
[0021] Then use deionized water to centrifuge at a speed of 6000 rpm until the pH value is about 7, remove the supernatant, freeze-dry the obtained product at -55°C for 30 hours, and then grind it with a mortar. The organic-inorganic hybrid cadmium sulfide-diethylenetriamine nanoribbon with a width of 30-100 nm is obtained.
[0022] Such as figure 1 , 2 As shown, the material has good hydrogen production performance after testing, and the hydrogen production rate reaches 5000 umol g -1 •h -1 .
Embodiment 2
[0024] Disperse 1.1g of cadmium nitrate and 1.2g of sodium sulfide in a mixed solution of 30mL of hexamethylenetetramine and 10mL of deionized water, stir at room temperature at a speed of 450 rpm for 100 minutes to obtain a uniform dispersion, and then The dispersion liquid was transferred to an autoclave, and placed in a vacuum blast drying oven with a set temperature of 120° C. to react for 48 hours.
[0025] Then use deionized water to centrifuge at a speed of 8000 rpm until the pH value is about 7, remove the supernatant, freeze-dry the obtained product at -55°C for 48 hours, and then grind it with a mortar to obtain An organic-inorganic hybrid cadmium sulfide-hexamethylenetetramine composite material with a particle size of 80nm.
[0026] After testing, the material has good hydrogen production performance, and the hydrogen production rate reaches 4782.6 umol g -1 •h -1 .
Embodiment 3
[0028] Disperse 0.64 g of cadmium acetate and 1.6 g of sodium thiosulfate in 40 mL of triethylenetetramine solution, stir at room temperature at a speed of 700 rpm for 120 minutes to obtain a uniform dispersion, and then transfer the dispersion to a high-pressure reaction Reactor was placed in a vacuum blast drying oven with a set temperature of 160°C for 36 hours.
[0029] Then use deionized water to centrifuge at a speed of 8000 rpm until the pH value is about 7, remove the supernatant, freeze-dry the obtained product at -55°C for 70 hours, and then grind it with a mortar to obtain An organic-inorganic hybrid cadmium sulfide-triethylenetetramine composite material with a particle size of 70nm.
[0030] After testing, the material has good hydrogen production performance, and the hydrogen production rate reaches 5222.4 umol g -1 •h -1 .
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