Graphene-supported copper-nickel composite nanometer photocatalyst, and preparation method and application thereof
A nano-photocatalyst and photocatalyst technology, applied in chemical instruments and methods, physical/chemical process catalysts, metal/metal oxide/metal hydroxide catalysts, etc., can solve the problem of Ni-based bimetal composite nanoparticle synthesis Reporting and other issues, to achieve the effect of easy operation, good development prospects and high purity
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[0022] Example 1:
[0023] Take 100mg solid graphite oxide and add it to 25ml ethanolamine, magnetically stir and ultrasonically disperse for 30min at room temperature; then add 100ml deionized water, continue magnetic stirring for 24h, centrifuge the solution and wash with water to remove excess ethanolamine; each measure 50ml Cu( NO 3 ) 2 (6mmol / L) and Ni(NO 3 ) 2 (6mmol / L) ethylene glycol solution was added to the above graphene oxide, then NaOH with a concentration of 0.1 g / L was added, the pH was adjusted to 4, and the solution was stirred magnetically for 30 minutes at 80℃ water bath temperature. Nitrogen was introduced to remove the dissolved oxygen in the solution; the mixed solution was quickly transferred to a stainless steel reactor with a polytetrafluoroethylene liner, and the reactor was reacted at a constant temperature of 80°C for 0.5h; naturally cooled to room temperature, and the resulting product was treated with water After ultrasonic washing with ethanol for...
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[0024] Example 2:
[0025] Take 100mg of solid graphite oxide and add it to 25ml of polyvinyl alcohol, magnetically stir and ultrasonically disperse at room temperature for 60 minutes; then add 100ml of deionized water, continue to magnetically stir for 24h, and centrifuge the solution to remove excess polyvinyl alcohol; Take 50mlCu(NO 3 ) 2 (12mmol / L) and Ni(NO 3 ) 2 (12mmol / L) of ethylene glycol solution was added to the above graphene oxide, and then added with NaOH with a concentration of 1.2g / L, adjusted to pH value of 13, magnetically stirred at 120℃ water bath temperature for 80min, and magnetically stirred to the solution at the same time Nitrogen was introduced to remove dissolved oxygen in the solution; the mixed solution was quickly transferred to a stainless steel reactor with a polytetrafluoroethylene liner, and the reactor was reacted at a constant temperature of 80°C for 120 minutes; naturally cooled to room temperature, and the resulting product was mixed with wa...
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[0026] Example 3:
[0027] Take 100mg of solid graphite oxide and add it to 25ml of ethylenediamine, magnetically stir and ultrasonically disperse for 30min at room temperature; then add 100ml of deionized water, continue magnetic stirring for 24h, and centrifuge the solution to remove excess ethylenediamine; Take 50mlCu(NO 3 ) 2 (8mmol / L) and Ni(NO 3 ) 2 (8mmol / L) of ethylene glycol solution was added to the above graphene oxide, and then NaOH with a concentration of 0.8g / L was added to adjust the pH to 13, and magnetically stirred for 120min under the condition of a water bath temperature of 100℃. Nitrogen was introduced to remove the dissolved oxygen in the solution; the mixed solution was quickly transferred to a stainless steel reactor with a polytetrafluoroethylene liner, and the reactor was reacted at a constant temperature of 120°C for 0.5h; naturally cooled to room temperature, and the resulting product was watered After ultrasonic washing with ethanol three times, so...
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