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Make Hydrogen Peroxide from Water
The method of making dioxygen in water
If you want to make hydrogen peroxide in the world, you often start with water. In water, hydrogen and oxygen are combined. If you want to get dioxygen, you need to change the structure of water.
Method 1, you can use the technique of electrolysis. In the water electrolyzer, an electric current is applied. When water meets electricity, it precipitates into hydrogen and oxygen. However, if you want to get dioxygen, it is not so simple. When it is in a specific environment, it is appropriate to use electricity, and the electrodes also need to be exquisite. Select a special electrode to apply a constant current to the alkaline liquid, and the oxygen atoms in the water may form a state of dioxygen. This is delicate, in controlling the strength of the current, the pH and temperature of the liquid. If the current is strong, the reaction will be fast, but if it is too strong, other side reactions will occur; the pH is different, and the formula of oxygenation is also different; the temperature is high or low, which depends on the speed and yield of the reaction.
Method 2, chemical reagents help. Combine water with a strong oxidant. If barium peroxide meets water, it reacts with water, and the barium ions remain in the liquid, and some oxygen atoms recombine to form hydrogen peroxide. However, the reagents need to be carefully selected, taking into account their purity and impurities. Impurities disturb the reaction, or cause the product to be impure. And after the reaction, the method of separation needs to be used to remove excess reagents and by-products to obtain pure dioxy.
Or there may be a new method to borrow the technology of photocatalysis. Use a specific photocatalyst, such as Under the light, the catalyst stimulates electrons, interacts with water, and attracts oxygen atoms to combine, gradually forming hydrogen peroxide. This technique requires a good photocatalyst, and it also requires light. Light intensity and light wavelength both affect the reaction. Strong light may promote the reaction, but it is too strong or destroys the catalyst. Only when the appropriate light wavelength can effectively stimulate the catalyst and open the door to the reaction.
To produce hydrogen peroxide, all methods have their advantages and disadvantages. Electrolysis is accurate, but energy consumption is high; reagents react quickly, but the product is pure; photocatalysis is new and clean, but the technology is not fully mature. Choose the method according to the situation, and seek the balance between high efficiency, pure production and economy.
If you want to make hydrogen peroxide in the world, you often start with water. In water, hydrogen and oxygen are combined. If you want to get dioxygen, you need to change the structure of water.
Method 1, you can use the technique of electrolysis. In the water electrolyzer, an electric current is applied. When water meets electricity, it precipitates into hydrogen and oxygen. However, if you want to get dioxygen, it is not so simple. When it is in a specific environment, it is appropriate to use electricity, and the electrodes also need to be exquisite. Select a special electrode to apply a constant current to the alkaline liquid, and the oxygen atoms in the water may form a state of dioxygen. This is delicate, in controlling the strength of the current, the pH and temperature of the liquid. If the current is strong, the reaction will be fast, but if it is too strong, other side reactions will occur; the pH is different, and the formula of oxygenation is also different; the temperature is high or low, which depends on the speed and yield of the reaction.
Method 2, chemical reagents help. Combine water with a strong oxidant. If barium peroxide meets water, it reacts with water, and the barium ions remain in the liquid, and some oxygen atoms recombine to form hydrogen peroxide. However, the reagents need to be carefully selected, taking into account their purity and impurities. Impurities disturb the reaction, or cause the product to be impure. And after the reaction, the method of separation needs to be used to remove excess reagents and by-products to obtain pure dioxy.
Or there may be a new method to borrow the technology of photocatalysis. Use a specific photocatalyst, such as Under the light, the catalyst stimulates electrons, interacts with water, and attracts oxygen atoms to combine, gradually forming hydrogen peroxide. This technique requires a good photocatalyst, and it also requires light. Light intensity and light wavelength both affect the reaction. Strong light may promote the reaction, but it is too strong or destroys the catalyst. Only when the appropriate light wavelength can effectively stimulate the catalyst and open the door to the reaction.
To produce hydrogen peroxide, all methods have their advantages and disadvantages. Electrolysis is accurate, but energy consumption is high; reagents react quickly, but the product is pure; photocatalysis is new and clean, but the technology is not fully mature. Choose the method according to the situation, and seek the balance between high efficiency, pure production and economy.
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