Does activated carbon have a strong ability to adsorb formaldehyde?

Formaldehyde, the boiling point is very low, it is easy to volatile, and the polarity is not strong, and it is not very effective to rely on physical adsorption alone. The adsorption of formaldehyde by coal-based activated carbon is only less than 10% before chemical loading treatment. Coconut shell activated carbon can reach about 70% before treatment.

For the physical adsorption of formaldehyde, ammonia, acetaldehyde, etc., the activated carbon should be chemically modified. The most convenient way to do this is to load it. The addition of treated activated carbon changed the surface functional group results and increased the chemical adsorption performance of the activated carbon.

The formaldehyde adsorption performance of the activated carbon after loading is increased to about 80%, and the coconut shell activated carbon can be increased to more than 90%. It works great.

The main ingredient of formaldehyde treasure upstairs is resin, and the ability to adsorb formaldehyde is indeed better than that of activated carbon, but the ability of activated carbon to adsorb formaldehyde is also very good.

Activated carbon is still possible to remove formaldehyde from light pollution in general home decoration, and it takes a little time. At the same time, you can put some flowers and plants indoors, the most important thing is to strengthen ventilation. If the pollution exceeds the standard by more than 5 times, then you have to be careful, it is best to ask professional governance, corporate governance is safer.

The ability of activated carbon to adsorb formaldehyde is not as good as that of nano live ore. The main reason is that the pore size of the activated carbon itself is very large, and the pore size of nano ore is much smaller, so the activated carbon is easy to saturate after absorption.

And the activated carbon can not be absorbed when it is saturated, it needs to be dried first, the ore can be decomposed and removed by itself, and it can be decomposed by itself after absorption, and it can be effectively absorbed for a long time.

The effect of activated carbon adsorption of formaldehyde is far less good than that of formaldehyde, and the products of China Shipbuilding Industry are quite effective.

And it's cheaper than activated carbon, 60 square meters, only more than 100 pieces, which is very good.

I suggest that friends should compare more, after all, this is related to the health of the family, can not be sloppy, I feel that Happy Forest and Qingrun are good, Qingrun series more, good choice!

Generally, and you have to take it out to dry at any time, and you have to replace it with a new one at any time, the formaldehyde volatilization period is as long as 3-15 years, so calculated, the cost is still a bit scary, you can look at my space.

After the decoration of new houses, the average check-in time in the country is 2-3 months later, and the main reason is the problem of decoration pollution, including not only taste, but also formaldehyde, radon and other colorless and odorless harmful substances.

There are also a few ways to remove it:

1. Ventilation is the universal law, to ensure a long time of ventilation, and at the same time it is best to ensure high temperature and high humidity.

2. Aldehyde removal spray: select some high-quality photophyll that decomposes the source of formaldehyde pollution to achieve the effect of removing decomposition. This section has no requirements for light and ultraviolet rays, and will not decompose incompletely.

3. Ye Guang mud, activated carbon. This kind of formaldehyde can be physically adsorbed, but activated carbon has the problem of easy saturation and frequent replacement. Ye Guangni is more trouble-free, has stronger adsorption, and can also decompose adsorbates without secondary release.

4. Green plants and flowers. Theoretically, it is effective for the removal of aldehydes. However, it cannot remove aldehydes in large quantities and quickly, so it is mainly used for landscaping the indoor environment.

5. Air purifier. This is not as good as ventilation in terms of aldehyde removal effect, and I personally feel that it is not very necessary.

Above, choose the removal method according to your actual situation, and move into a new home after it is safe.

Activated carbon contains a large number of micropores, which can adsorb organic pollutants and some inorganic substances, and its adsorption capacity depends on the distribution of its own pore size and the molecular size of the adsorbed substance.

It can be seen that placing activated carbon in a newly renovated house or a new car is effective for the adsorption of formaldehyde. But the adsorption capacity of activated carbon is not unlimited, nor is it as magical as advertised by merchants.

According to the southeast network, the adsorption of odor by activated carbon is mainly due to the pore structure of the carbon itself, and the odor is adsorbed into the pores without chemical reaction. After adsorption for a certain period of time, the pores of the activated carbon will be in a saturated state, and the adsorption will also be reduced to zero.

Activated carbon is an effective way to remove formaldehyde, but it is not recommended to use it for a long time, when using activated carbon, it needs to be dried or replaced regularly, and the removal of formaldehyde only with activated carbon This method is too single, if you want to move into a new house as soon as possible, it is recommended that you carry out a variety of methods at the same time, and then bring you several efficient and convenient methods. 1.As long as the local air quality meets the standard, other pollutants will not be introduced, and it is easy to use and low cost, but it needs to be insisted on for a long time, because the release life of formaldehyde is long, and it is easy to repeat the situation when the ventilation is not smooth.

2.Plants can remove formaldehyde, although formaldehyde can be removed, but the amount of formaldehyde it absorbs is very limited, and when the indoor concentration is high, if the plant alone relies on formaldehyde adsorption, the amount is very large. 3.

The principle of the fresh air system is ventilation, the outdoor fresh air is filtered and transported to the room, and then the harmful substances containing formaldehyde are discharged outside to achieve the effect of removing formaldehyde. 4.The blades of the fan can cut the air to promote the airflow in the process of rotating, so as to realize the displacement of indoor and outdoor air, accelerate the discharge of formaldehyde-containing air, and effectively reduce the concentration of indoor pollutants, but it can only treat the symptoms but not the root cause, and this method may not be practical in the warm season.

5.Photocatalyst is also called photocatalyst, its representative substance is titanium dioxide, which can effectively catalyze the decomposition of harmful substances in the air, such as formaldehyde, toluene, TVOC, etc., which can be degraded into carbon dioxide and water that are harmless to the human body. In summary, after the decoration of the new house, the release of formaldehyde is large, the release time is long, and the treatment of formaldehyde by a single method will inevitably be a little difficult.

This should be able to absorb activated carbon. Because when there is an odor in the refrigerator. When this activated carbon is put in. It will suck the odor into the activated carbon. There is no smell in the ice box. So I also think that formaldehyde can be absorbed.

Of course, activated carbon is useful, but if you want to completely remove it, it will be easy to saturate, you can try the Moqing stone in Tmall Zhuhai Goddess***, the adsorption capacity is 20 times that of activated carbon.

Activated carbon is a carbon-rich organic material that is converted by pyrolysis at high temperature and pressure. In this activation process, a huge surface area and complex pore structure are gradually formed, which can effectively adsorb benzene series such as toluene with relatively large molecular weight, but the adsorption capacity of chemical substances with relatively small molecular weight such as formaldehyde is relatively weak. Can be used in combination with other methods:

1. Open windows for ventilation, which is the easiest way to remove formaldehyde in the home.

2. Photocatalyst. It is necessary to choose a good material photophyllin, photocatalyst and other photocatalysts can decompose formaldehyde when exposed to light, and photophyll is a formaldehyde catalyst extracted from plants, which will be faster and safer, and is generally used more under household conditions.

3. Use a fumigator to raise the temperature so that formaldehyde is released, and the release is reduced.

4. Place some green plants to help absorb formaldehyde.

Useless. Activated carbon is the most common formaldehyde removal product in life. Activated carbon and other adsorption formaldehyde removal products only have adsorption capacity, can not eliminate formaldehyde, when the product adsorption is full, under the conditions of moisture, heat, etc., formaldehyde may be desorbed and released again.

In addition, pharmaceutical formaldehyde removal products include formaldehyde scavengers, photocatalyst formaldehyde scavengers and formaldehyde sealants. Formaldehyde scavenger for the free formaldehyde that has been released in the air, can not remove the formaldehyde that has not yet decomposed in furniture and boards, and the merchant claims to spray the scavenger on the surface of the furniture to adsorb formaldehyde, which is Naihong's misleading publicity. Photocatalyst formaldehyde scavenger is a photocatalytic product, which can only be decomposed under ultraviolet irradiation, but the pure ultraviolet spike is often not strong indoors, and its effect is limited.

Formaldehyde sealant uses the film-forming characteristics of the product to block formaldehyde and prevent it from volatilizing, but it is basically impossible to completely block it in life. In addition, the industry standards and testing and evaluation methods of such products are not perfect, and the quality is difficult to guarantee.