Light illumination and mechanically catalytic method for degradation of p-nitrobenzenes by using nano copper-protoxide
A cuprous oxide and nitrobenzene technology, applied in metal/metal oxide/metal hydroxide catalysts, chemical instruments and methods, physical/chemical process catalysts, etc. Problems such as decomposing organic pollutants are not applied to achieve the effect of easy availability of materials and low cost
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Embodiment 1
[0030] 200ml of p-nitrophenol solution with a concentration of 0.10g / L was placed in the reactor, and 0.80g of cuprous oxide prepared by the improved hydrolysis method was added, the pH of the solution was 5.5, and the reaction temperature was maintained at winter water temperature (10°C). The light source is a 400W dysprosium lamp with an illuminance of 20000 lx. It is suspended at 35cm above the reactor, and the electromagnetic stirring method is used to make it rub against the bottom surface. The friction area is 1.02×10-3m2, the friction rate is 600 rpm, and 2ml is regularly sampled. High-speed centrifugation, and the supernatant was taken for liquid chromatography determination.
[0031] After determination, the degradation rate of p-nitrophenol can reach 80% after 3 hours of reaction. 92% was reached after 5 hours of reaction.
Embodiment 2
[0033] 200ml of p-nitrophenol solution with a concentration of 0.10g / L was placed in the reactor, and 0.60g of cuprous oxide prepared by the improved hydrolysis method was added, the pH of the solution was 5.5, and the reaction temperature was maintained at winter water temperature (10°C). The light source is a 400W dysprosium lamp with an illuminance of 20000lx. It is suspended at a place 35cm above the reactor, and it is rubbed against the bottom surface by means of electromagnetic stirring. The friction area is 1.02×10 -3 m 2 , the friction rate is 600 rev / min, 2ml high-speed centrifugation is regularly sampled, and the supernatant is taken for liquid chromatographic determination.
[0034] It is determined that the degradation rate of p-nitrophenol can reach 75.6% after 3 hours of reaction. After 5 hours of reaction, it reached 90.6%.
Embodiment 3
[0036] 200ml of p-nitrophenol solution with a concentration of 0.080g / L was placed in the reactor, and 0.40g of cuprous oxide prepared by the improved hydrolysis method was added, the pH of the solution was 6, and the reaction temperature was maintained at winter water temperature (10°C). The light source is a 400W dysprosium lamp with an illuminance of 20000lx. It is suspended at a place 35cm above the reactor, and it is rubbed against the bottom surface by means of electromagnetic stirring. The friction area is 1.02×10 -3 m 2 , the friction rate is 600 rev / min, 2ml high-speed centrifugation is regularly sampled, and the supernatant is taken for liquid chromatographic determination.
[0037] It is determined that the degradation rate of p-nitrophenol can reach 73.4% after 3 hours of reaction. It reached 89.5% after 10 hours of reaction.
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