阅读说明：本技术 一种用于除甲醛消毒除味的二氧化氯固载分子筛 (Chlorine dioxide immobilized molecular sieve for removing formaldehyde, disinfection and odor ) 是由 蔡金海 杨柳 黄伟良 于 2020-07-30 设计创作，主要内容包括：本发明公开了一种用于除甲醛消毒除味的二氧化氯固载分子筛,包括如下步骤：将水合硅铝酸盐或天然沸石通过人工合成具有许多孔径均匀的通道和排列整齐的空穴的分子筛,分子筛具有筛选分子的作用,不同孔径的分子筛把不同大小和形状分子分开,分子筛的表面具有较强的酸中心,同时晶孔内有强大的库仑场起极化作用,这些特性使它成为性能优异的催化剂,本专利产品与以往的二氧化氯产品相比具有释放周期长、释放速率可控、存储运输稳定、使用安全方便的特点,是一款适合民用领域的产品,且本专利产品在除醛净化使用时,无需喷洒,无需光照,无需插电,使用简单方便。(The invention discloses a chlorine dioxide immobilized molecular sieve for removing formaldehyde, disinfection and odor, which comprises the following steps: the product has the characteristics of long release period, controllable release rate, stable storage and transportation and safe and convenient use compared with the prior chlorine dioxide product, and is a product suitable for the civil field.)

1. A chlorine dioxide immobilized molecular sieve for removing formaldehyde, disinfection and odor is characterized by comprising the following steps:

the molecular sieve is prepared by artificially synthesizing hydrated aluminosilicate or natural zeolite into a molecular sieve with a plurality of channels with uniform apertures and holes in regular arrangement, wherein the molecular sieve has the function of screening molecules, the molecular sieves with different apertures separate molecules with different sizes and shapes, the surface of the molecular sieve has stronger acid centers, and meanwhile, a strong coulomb field plays a role in polarization in crystal pores, so that the molecular sieve forms a catalyst with excellent performance, the molecular sieve material is selected, is roasted, modified and multiply wrapped with stable chlorine dioxide to prepare the chlorine dioxide immobilized molecular sieve material, the molecular sieve material selectively absorbs water molecules in air, and reacts with a chlorine dioxide precursor sodium chlorite material wrapped in the molecular sieve in a catalytic manner under the acidic condition of the molecular sieve to generate chlorine dioxide gas, and then the chlorine dioxide gas is slowly released under the action of moisture in the air, and 0.5-80g of chlorine dioxide immobilized molecular sieve product is placed in an air-permeable outer bag or box, and the shape of the outer bag is designed according to the requirement so as to be suitable for different application scenes.

2. The chlorine dioxide immobilized molecular sieve for removing formaldehyde, disinfecting and deodorizing as claimed in claim 1, wherein 5-10g of chlorine dioxide immobilized molecular sieve product is sealed in a breathable non-woven fabric bag, and then put into a plastic card bag with air holes, and hung in front of the chest for air disinfection.

3. The chlorine dioxide immobilized molecular sieve for removing formaldehyde, disinfecting and deodorizing as claimed in claim 1, wherein 30-80g of chlorine dioxide immobilized molecular sieve product is sealed in a breathable non-woven fabric bag, and then placed in a container with holes, and placed at a higher place such as a room table or a cabinet needing aldehyde removal, so as to achieve the aldehyde removal effect.

4. A chlorine dioxide supported molecular sieve for removing formaldehyde and odor as claimed in claim 1, wherein 20-50g of the chlorine dioxide supported molecular sieve is placed in a box with holes and fixed on a car console for removing formaldehyde and odor.

5. The chlorine dioxide immobilized molecular sieve for removing formaldehyde, disinfecting and deodorizing as claimed in claim 1, wherein 10-30g of chlorine dioxide immobilized molecular sieve product is sealed in breathable non-woven fabric, put in a box with a sucker and then placed or fixed in a refrigerator/cabinet for effective sterilization and deodorization.

6. The chlorine dioxide immobilized molecular sieve for removing formaldehyde, disinfecting and deodorizing as claimed in claim 1, wherein 0.5-2g of chlorine dioxide immobilized molecular sieve product is sealed in breathable non-woven fabric and placed in a cake packaging box for effective fresh-keeping effect.

Technical Field

The invention relates to the technical fields of disinfection, environmental protection, odor removal, food preservation, indoor and in-vehicle purification and formaldehyde removal, in particular to a chlorine dioxide immobilized molecular sieve for removing formaldehyde, disinfection and odor.

Background

Chlorine dioxide is a safe, efficient, broad-spectrum germicidal disinfectant classified as AI by the world health organization. From ClO₂Since the advent, the method has been applied to various aspects such as paper pulp bleaching, drinking water disinfection, food processing, meat, fruit and vegetable preservation, oil well blockage removal, disinfection and sterilization in clinical medical treatment, epidemic prevention disinfection and indoor purification.

Chlorine dioxide is a strong oxidant, which has been found to have a disinfecting effect in the 20 th century, and was formally classified as a chemical sterilant in 1984. Chlorine oxide is used as a disinfectant, has extremely strong disinfection and sterilization capability, and microorganisms which cannot be killed by ClO2 are not found so far. ClO₂The strong disinfection and sterilization effect is due to that it has an unpaired electron, has strong oxidizing power and ClO₂The bactericidal composition is a neutral molecule, has better adsorbability and penetrability on microbial cells, can effectively oxidize enzymes containing sulfenyl in the cells, destroys an enzyme system, simultaneously oxidizes and decomposes amino acid in protein, quickly controls the synthesis of microbial protein, achieves the effect of inhibiting the growth or killing bacteria, has good killing effect on spore, virus, algae, fungi, iron-blood bacteria, sulfate reducing bacteria and the like, has no influence on the cell structures of higher animals and plants, and is a very safe and efficient disinfectant and bactericidal preparation. Chlorine dioxide is an oxidizing disinfectant, but not a chlorine-containing disinfectant, and plays a role in disinfection mainly through oxidation rather than chlorination, so that the generation of organic chlorides such as trichloromethane in the disinfection process is avoided. In the disinfection and control of the new crown blight, chlorine dioxide is recommended by the national health commission and the central disease control as one of the disinfectants for air disinfection and object surface disinfection.

Chlorine dioxide also has incomparable advantages with other chemical purifiers in the aspect of indoor aldehyde removal purification. This is due to ClO₂Is a gas substance with strong oxidizability, can not only disinfect and sterilize, but also decompose organic and inorganic harmful substances in the air, water and carbon dioxide which are harmless to human health as decomposition products, and low-concentration ClO₂The gas itself has a certain therapeutic effect on respiratory diseases of human beings. In addition, ClO₂The chlorine dioxide is gas, has strong permeability, can be actively attacked without entering pores, and has no dead angle in aldehyde removal purification, and the characteristics make the chlorine dioxide stand out in the air purification industry.

The deodorization mechanism of chlorine dioxide is also from its strong oxidation effect, and can effectively oxidize and decompose NH₃(odor) H₂S (rotten egg flavor), methyl mercaptan (rotten leaf flavor), methyl sulfide (garlic flavor), dimethylamine (stinky fish flavor), formaldehyde (pungent smell), benzene, and the like. ClO for Zhouyu, etc₂Experiments and field researches are carried out on the efficiency of removing unpleasant odors such as ammonia, dimethylamine, hydrogen sulfide and propanethiol and eliminating odor in a flush-free toilet and corrosive odor in an autopsy room, the chlorine dioxide can change indoor air from malodor to odorless in a short time, and the experimental results prove that the chlorine dioxide has a strong deodorizing function. Therefore, the chlorine dioxide has good application prospect in the aspect of environmental protection, especially in the field of treating increasingly serious odor pollution.

Although chlorine dioxide has strong advantages in the fields of disinfection, aldehyde removal and odor removal, chlorine dioxide is very active, cannot be stored in a gas form, and is relatively stable in aqueous solution, and can be stored for a long time if stored in a shady, cool, sealed and dark place, but is extremely easy to decompose if stored under high-temperature illumination, and generally needs to be prepared on site and cannot be stored and transported, so that the application range of chlorine dioxide is limited.

In addition, the chlorine dioxide products on the market are mainly three types of powder, tablet and liquid, the powder and the tablet need to be dissolved in aqueous solution for producing chlorine dioxide when being used, and the final using state is also in a liquid form. The use of aqueous solutions of liquid chlorine dioxide has certain limitations: 1. chlorine dioxide solutions can corrode metal materials; 2. by wiping, spraying or atomizing the aqueous solution, it is difficult to ensure that chlorine dioxide can reach all parts to be treated; 3. the liquid chlorine dioxide solution contains other compound impurities, can only be used in the industrial and agricultural fields generally, and limits the application range of the chlorine dioxide.

Disclosure of Invention

The invention aims to provide a chlorine dioxide immobilized molecular sieve for removing formaldehyde, disinfecting and deodorizing, so as to solve the problems in the background technology.

In order to achieve the purpose, the invention provides the following technical scheme:

a chlorine dioxide immobilized molecular sieve for removing formaldehyde, disinfection and odor comprises the following steps:

the molecular sieve material is prepared by selecting molecular sieve material, roasting, modifying and multiply wrapping with stable chlorine dioxide (chlorine dioxide precursor), the molecular sieve material selectively absorbs water molecules in air, and reacts with chlorine dioxide precursor sodium chlorite material wrapped in the molecular sieve under the condition of molecular sieve acidity to generate chlorine dioxide gas, and then the chlorine dioxide gas is slowly released under the action of moisture in the air, and 0.5-80g of chlorine dioxide immobilized molecular sieve product is placed in an air-permeable outer bag or box, and the shape of the outer bag is designed according to the requirement so as to be suitable for different application scenes.

As a further scheme of the invention: 5-10g of chlorine dioxide immobilized molecular sieve product is sealed in a breathable non-woven fabric bag, and then put into a plastic card bag with air holes and hung in front of the chest to play a role in air disinfection, so that the effects of killing germs and preventing virus infection can be achieved.

As a still further scheme of the invention: 30-80g of chlorine dioxide immobilized molecular sieve product is sealed in a breathable non-woven fabric bag, then is placed in a container with holes and is placed on a higher place such as a room table or a cabinet needing aldehyde removal, the aldehyde can be removed effectively for 3-6 months, and experimental data show that the aldehyde removal rate is more than 98%.

As a still further scheme of the invention: 20-50g of chlorine dioxide supported molecular sieve product is placed in a box with holes and fixed on an automobile center console to achieve the effects of removing aldehyde and removing odor.

As a still further scheme of the invention: 10-30g of chlorine dioxide immobilized molecular sieve product is sealed in breathable non-woven fabric, then placed in a box with a sucker and then placed or fixed in a refrigerator/cabinet to achieve the effect of effective sterilization and deodorization, and the effective period is as long as 6 months.

As a still further scheme of the invention: 0.5-2g of chlorine dioxide immobilized molecular sieve product is sealed in the breathable non-woven fabric and placed in a cake packaging box to achieve an effective fresh-keeping effect, and the fresh-keeping effective period of fresh cakes without preservatives can be as long as 15.

Compared with the prior art, the invention has the beneficial effects that:

1. this patent product compares with chlorine dioxide product in the past and has the release cycle length, release rate is controllable, the storage transportation is stable, characteristics safe in utilization is convenient, be a section and be fit for the product in civilian field, and this patent product is removing aldehyde and purifies the use, need not to spray, need not the illumination, need not to insert the electricity, convenience simple to use, this product can continuously produce quantitative chlorine dioxide gas, gaseous chlorine dioxide has good diffusivity and penetrability, can permeate every position that needs to handle, can carry out the space disinfection, reach 360 no dead angle and remove the effect of aldehyde, no secondary pollution, can play the effect of removing aldehyde for a long time stably.

2. This patent product only needs to be placed in the air, need not to insert the electricity, just can the sustained release chlorine dioxide active molecule, kills the various bacteriums that produce the peculiar smell to decompose various chemistry peculiar smell molecules, disinfect and remove the flavor not bounce-back, reach the effect of lasting net flavor, this product can be put in any someone's environment, it is very safe and convenient to use, and this patent adopts chlorine dioxide to carry the granule admittedly, can slowly release a certain amount of chlorine dioxide gas, does not have the corruption to the metal basically.

3. The product has the characteristics of long preservation time, high efficiency, broad spectrum, no toxicity and no residue in the field of food preservation.

Drawings

FIG. 1 is a diagram of an experimental device for removing formaldehyde in a chlorine dioxide immobilized molecular sieve for removing formaldehyde, disinfection and odor.

FIG. 2 is a graph showing the change of the concentration of ammonia gas in a test chamber of a chlorine dioxide immobilized molecular sieve for removing formaldehyde, disinfection and odor.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-2, in an embodiment of the present invention, a chlorine dioxide immobilized molecular sieve for removing formaldehyde, disinfecting, and deodorizing includes the following steps:

the molecular sieve material is prepared by selecting molecular sieve material, roasting, modifying and multiply wrapping with stable chlorine dioxide (chlorine dioxide precursor), the molecular sieve material selectively absorbs water molecules in air, and reacts with chlorine dioxide precursor sodium chlorite material wrapped in the molecular sieve under the condition of molecular sieve acidity to generate chlorine dioxide gas, and then the chlorine dioxide gas is slowly released under the action of moisture in the air, and 0.5-80g of chlorine dioxide immobilized molecular sieve product is placed in an air-permeable outer bag or box, and the shape of the outer bag is designed according to the requirement so as to be suitable for different application scenes.

5-10g of chlorine dioxide immobilized molecular sieve product is sealed in a breathable non-woven fabric bag, and then put into a plastic card bag with air holes and hung in front of the chest to play a role in air disinfection, so that the effects of killing germs and preventing virus infection can be achieved.

30-80g of chlorine dioxide immobilized molecular sieve product is sealed in a breathable non-woven fabric bag, then is placed in a container with holes and is placed on a higher place such as a room table or a cabinet needing aldehyde removal, the aldehyde can be removed effectively for 3-6 months, and experimental data show that the aldehyde removal rate is more than 98%.

20-50g of chlorine dioxide supported molecular sieve product is placed in a box with holes and fixed on an automobile center console to achieve the effects of removing aldehyde and removing odor.

10-30g of chlorine dioxide immobilized molecular sieve product is sealed in breathable non-woven fabric, then placed in a box with a sucker and then placed or fixed in a refrigerator/cabinet to achieve the effect of effective sterilization and deodorization, and the effective period is as long as 6 months.

0.5-2g of chlorine dioxide immobilized molecular sieve product is sealed in the breathable non-woven fabric and placed in a cake packaging box to play an effective fresh-keeping effect, and the fresh-keeping effective period can be as long as 15 days for fresh cakes without preservatives.

First, chlorine dioxide immobilized molecular sieve product is used for refrigerator sterilization and deodorization effect

A household refrigerator is taken as an experimental object, products such as vegetables and meat are placed in the refrigerator, 20g of solid chlorine dioxide products are placed in a fresh-keeping layer of the refrigerator, an ATP fluorescence detector is used for testing numerical values of microorganisms such as bacteria in the refrigerator, the sterilization effect of the chlorine dioxide solid molecular sieve products is detected, and the taste in the refrigerator is recorded. Experiments of 60 days show that the immobilized chlorine dioxide can effectively control the quantity of bacteria and other harmful microorganisms in the refrigerator, so that the refrigerator is in a relatively safe environment for a long time, the peculiar smell in the refrigerator is effectively removed, and the effect of lasting deodorization is achieved. The experimental data are detailed in table 1.

TABLE 1 refrigerator ATP detection value and odor recording table

Effect of chlorine dioxide immobilized molecular sieve product for removing aldehyde

To test the aldehyde removal effect of the chlorine dioxide solid molecular sieve product, 0.5m is used³The closed experiment chamber simulates the aldehyde removal effect of the chlorine dioxide product. And (4) dripping the formaldehyde solution into the blank group experiment chamber, starting the fan, and recording the change of the concentration of the formaldehyde solution in the experiment chamber after the fan is completely volatilized. And (3) dropwise adding formaldehyde with the same amount into the experimental cabin of the experimental group, opening the fan, and adding 30g of chlorine dioxide immobilized molecular sieve product to test the formaldehyde removal effect. The experimental set-up is shown in figure 1,

experimental data show that formaldehyde data of a blank experimental cabin in which a chlorine dioxide immobilized molecular sieve product is not placed continuously increase, and formaldehyde values of the experimental cabin in which the chlorine dioxide immobilized molecular sieve product is placed are consistently maintained in a lower state until the formaldehyde values are finally reduced to 0, so that the chlorine dioxide immobilized molecular sieve has a very good formaldehyde removing effect and can remove released formaldehyde in time, and the specific experimental data are shown in the following table:

TABLE 2 Formaldehyde removal effectiveness of chlorine dioxide supported molecular sieve products

Thirdly, the chlorine dioxide immobilized molecular sieve product is used for removing peculiar smell

The effect of chlorine dioxide on removing odor was tested using ammonia as the odor source. 30g of chlorine dioxide supported molecular sieve product is placed in the test chamber, 0.6g of 2% ammonia water is dropped in the test chamber, the change of the ammonia water concentration in the test chamber is detected every 1 hour as shown in figure 2,

as shown in figure 2, the ammonia gas basically and completely reacts in the chlorine dioxide immobilized molecular sieve product test box for 8 hours to achieve the deodorization effect, the process is controllable, and the chlorine dioxide immobilized molecular sieve product can continuously release chlorine dioxide molecules to decompose odor sources in time.

Effect of chlorine dioxide immobilized molecular sieve product for food fresh-keeping

The rice and the kiwi fruits are used as experimental objects to detect the fresh-keeping effect of the chlorine dioxide immobilized molecular sieve product on food. Equal amount of rice/kiwi fruit is placed in two transparent lunch boxes, and a chlorine dioxide immobilized molecular sieve product is placed in one lunch box, and the change of the rice is observed. After the rice is placed for three months, the rice and the kiwi fruits which are not placed with the chlorine dioxide immobilized molecular sieve product are thoroughly mildewed, and the rice and the kiwi fruits which are placed with the chlorine dioxide immobilized molecular sieve product are still kept in a better state. The chlorine dioxide immobilized molecular sieve has good fresh-keeping effect on food and can be widely applied to the field of food fresh keeping.

In conclusion, the chlorine dioxide immobilized molecular sieve product has good sterilization effect, aldehyde removal purification effect, odor removal effect and food preservation effect, is convenient to use, and is very suitable for commercialization.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.