A Green Synthesis Method and Photoelectric Application of Flower-like Copper Oxide Nanocrystals
A green synthesis, copper oxide technology, applied in chemical instruments and methods, copper oxide/copper hydroxide, nanotechnology, etc., can solve toxic and harmful problems, achieve convenient operation, high catalytic degradation activity, simple synthesis and regulation Effect
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Embodiment 1
[0036] Add 20 mL of 2 mM copper sulfate solution dropwise into 20 mL of the mixed solution of potassium sodium tartrate (14 mM) and sodium hydroxide (16 mM) at a rate of 2 mL / min, and magnetically stir for 15 min to obtain a bright blue Clear solution. The solution was transferred to a 50 mL jar, sealed, and heated in an oven at 95 °C for 120 min, the color of the solution turned dark yellow. The reacted solution was centrifuged at 4000 rpm for 5 min to collect the solid product, which was then alternately washed 3 times with water / ethanol. The product was weighed after drying in an oven at 60 °C for 12 h, and the average yield of the reaction was 95%. figure 1 Photographs of the reacted solutions in jars of different volumes. figure 2 SEM and SEM photographs of the product. It can be seen from the figure that the product presents a flower-like morphology, and the particle size distribution is uniform. image 3 It is the XRD pattern of the product, it can be seen that the...
Embodiment 2
[0038] Add 20 mL of 2 mM copper sulfate solution dropwise into 20 mL of the mixed solution of potassium sodium tartrate (14 mM) and sodium hydroxide (16 mM) at a rate of 2 mL / min, and magnetically stir for 15 min to obtain a bright blue Clear solution. The solution was transferred to a 50 mL jar, sealed, and heated in an oven at 95 °C for 60 min, the color of the solution turned dark yellow. The reacted solution was centrifuged at 4000 rpm for 5 min to collect the solid product, which was then alternately washed 3 times with water / ethanol. The product was dried in an oven at 60 °C for 12 h. see results Figure 5 .
Embodiment 3
[0040] Add 20 mL of 2 mM copper sulfate solution dropwise into 20 mL of the mixed solution of potassium sodium tartrate (14 mM) and sodium hydroxide (16 mM) at a rate of 2 mL / min, and magnetically stir for 15 min to obtain a bright blue Clear solution. The solution was transferred to a 50 mL jar, sealed, and heated in an oven at 95 °C for 80 min, and the color of the solution turned dark yellow. The reacted solution was centrifuged at 4000 rpm for 5 min to collect the solid product, which was then alternately washed 3 times with water / ethanol. The product was dried in an oven at 60 °C for 12 h. see results Figure 5 .
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