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Adsorbent with adsorption and oxidation synergistic effects on indoor toluene and preparation method and application of adsorbent

A synergistic and adsorbent technology, applied in the field of indoor air purification, can solve problems such as poor stability, adsorbents are easily affected by the environment, and large absorption devices, and achieve the effects of low cost, high adsorption rate, and broad application prospects

Inactive Publication Date: 2014-12-24
杭州朱庇特环境科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] Aiming at the disadvantages of the prior art that the adsorbent is easily affected by the environment, has poor stability, and a large absorption device, the present invention discloses an adsorbent that has a synergistic effect of adsorption and oxidation on indoor toluene, and also discloses its preparation method and application; the preparation process is convenient, the conditions are simple, safe and reliable, suitable for industrial production

Method used

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  • Adsorbent with adsorption and oxidation synergistic effects on indoor toluene and preparation method and application of adsorbent
  • Adsorbent with adsorption and oxidation synergistic effects on indoor toluene and preparation method and application of adsorbent
  • Adsorbent with adsorption and oxidation synergistic effects on indoor toluene and preparation method and application of adsorbent

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Effect test

Embodiment 1

[0032] Investigation on the concentration of potassium permanganate:

[0033] The preparation method of the adsorbent having the synergistic effect of adsorption and oxidation on indoor toluene comprises the following steps:

[0034] A. Potassium permanganate and spherical H-ZSM-5 molecular sieve (silicon-aluminum ratio: 70-80) are 1:1 by mass ratio and the mass concentration of potassium permanganate is 1%, 2%, 3%, 4% respectively. %, 5%, 10%, 50% absolute ethanol solution for 5 hours ultrasonic immersion;

[0035] B. In step A, the impregnated H-ZSM-5 molecular sieve is placed in a nitrogen blowing device for drying, and the sample is purged at room temperature until it is completely dry by controlling the nitrogen gas flow rate of 0.02L / min, and the indoor Toluene is an adsorbent that has a synergistic effect of adsorption and oxidation.

[0036] Among them, when the mass concentration of potassium permanganate is 5%, this kind of adsorbent that has a synergistic effect o...

Embodiment 2

[0042] Investigation of the time of impregnation:

[0043] The preparation method of the adsorbent having the synergistic effect of adsorption and oxidation on indoor toluene comprises the following steps:

[0044] A. Ultrasonic impregnation of potassium permanganate and spherical H-ZSM-5 (silicon-aluminum ratio: 70-80) molecular sieves in an absolute ethanol solution with a mass ratio of 1:1 and potassium permanganate mass concentration of 5%. 1 hour, 4 hours, 10 hours respectively;

[0045] B. In step A, the impregnated H-ZSM-5 molecular sieve is placed in a nitrogen blower for drying, and the sample is purged to completely dry at room temperature by controlling the nitrogen gas flow rate of 0.1L / min, and the indoor Toluene is an adsorbent that has a synergistic effect of adsorption and oxidation.

[0046] Wherein, when the immersion time is 4 hours, this kind of adsorbent that has the synergistic effect of adsorption and oxidation on indoor toluene includes potassium perm...

Embodiment 3

[0052] Investigation on the ratio of silicon to aluminum in H-ZMS-5 molecular sieve:

[0053] The preparation method of the adsorbent having the synergistic effect of adsorption and oxidation on indoor toluene comprises the following steps:

[0054] A. Spherical H-ZSM-5 molecular sieves with different ratios of potassium permanganate and silicon to aluminum were impregnated ultrasonically for 4 hours in an absolute ethanol solution with a mass ratio of 1:1 and a mass concentration of potassium permanganate of 5%. The ratio of silicon to aluminum in H-ZSM-5 is 18-30, 70-80, 100-120 respectively.

[0055] B. Place the H-ZSM-5 molecular sieve impregnated in step A in a nitrogen blower for drying. By controlling the nitrogen gas flow rate of 0.05L / min, the sample is purged until completely dry at room temperature, and the indoor toluene is obtained. Adsorbents with synergistic effects of adsorption and oxidation.

[0056] Among them, when the ratio of silicon to aluminum in H-ZS...

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Abstract

The invention relates to the technical field of indoor air purification and discloses an adsorbent with adsorption and oxidation synergistic effects on indoor toluene, and the loading capacity of potassium permanganate on an H-ZSM-5 molecular sieve is 0.05 to 1.The adsorbent has good oxidation performance and excellent absorption effect, toluene can be directly oxidized into benzoic acid, and the technical problem of vacant adsorption of indoor low-concentration toluene is solved. The invention further discloses a preparation method of the adsorbent with the adsorption and oxidation synergistic effects on the indoor toluene, H-ZSM-5 is used as an adsorption carrier, potassium permanganate is loaded on the adsorption carrier by virtue of dipping, and then drying is performed by a nitrogen blowing instrument. The preparation method has the advantages of simplicity, short consumed time and low cost, conforms to the concept of green chemistry and has a wide application prospect. The invention further relates to application of the adsorbent to indoor toluene treatment. An effective method is provided for indoor pollution gas treatment, and an important application value is realized in the aspect of life safety.

Description

technical field [0001] The present invention relates to the technical field of indoor air purification, and relates to an adsorbent that has a synergistic effect of adsorption and oxidation on indoor toluene, in particular to a preparation method of the adsorbent that has a synergistic effect on adsorption and oxidation of indoor toluene, and also relates to its use in Handle indoor toluene applications. Background technique [0002] At present, with the increasing popularity of room decoration, especially the extensive use of interior decoration materials, benzene series represented by toluene have become one of the main pollutants of indoor air. Indoor toluene mainly comes from the volatilization of interior decoration materials containing toluene, such as wood-based panels, wallpaper, adhesives, paints, coatings, etc. The volatilization of toluene is a continuous process. Without sufficient indoor ventilation or other measures, the concentration of toluene in the room wi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J20/16B01J20/30B01D53/02
Inventor 王波丁廷昌宋杰吴珂余旭冬
Owner 杭州朱庇特环境科技有限公司
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