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UiO-66 based MOF (metal organic framework) material for indoor formaldehyde purification at room temperature and application of material

An organic framework, uio-66 technology, applied in other chemical processes, chemical instruments and methods, gas treatment, etc., to achieve the effect of high speed, conducive to diffusion transfer, and rapid adsorption

Active Publication Date: 2019-07-23
SUN YAT SEN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to overcome the shortcomings of the prior art adsorption formaldehyde materials, and provide a kind of material that can quickly and efficiently remove formaldehyde in the air at room temperature, simultaneously realize the resource conversion of formaldehyde, have stable adsorption and regeneration cycle performance, and have no secondary pollution. Environmentally friendly multi-defect amine functionalized metal-organic frameworks and their applications

Method used

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  • UiO-66 based MOF (metal organic framework) material for indoor formaldehyde purification at room temperature and application of material
  • UiO-66 based MOF (metal organic framework) material for indoor formaldehyde purification at room temperature and application of material
  • UiO-66 based MOF (metal organic framework) material for indoor formaldehyde purification at room temperature and application of material

Examples

Experimental program
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Effect test

Embodiment 1

[0064] Example 1 Preparation of a multi-defective amine functionalized metal-organic framework material

[0065] Amine-functionalized metal-organic frameworks were prepared according to the following method:

[0066] S1. At room temperature, 233mg (1mmol) zirconium tetrachloride (ZrCl 4 ) was stirred and dissolved in 50mL of N,N-dimethylformamide (DMF) solvent;

[0067] S2. Add 181 mg (1 mmol) of 2-aminoterephthalic acid (ATA) into the S1 mixture, and stir at a constant speed until the solute is completely dissolved, and the solution is clear and transparent;

[0068] S3. After step S2, the mixed solution was transferred to a stainless steel reaction kettle lined with polytetrafluoroethylene with a volume of 100ml, reacted at 120°C for 48h, and then naturally cooled to room temperature;

[0069] S4. After step S3, filter to obtain a solid product, wash with DMF and anhydrous methanol three times respectively, and freeze-dry, that is, the freeze-drying parameters are: freezin...

Embodiment 2

[0070] Example 2 Preparation of a multi-defect amine functionalized metal-organic framework material

[0071] Amine-functionalized metal-organic frameworks were prepared according to the following method:

[0072] S1. At room temperature, 233mg (1mmol) zirconium tetrachloride (ZrCl 4 ) was stirred and dissolved in 50mL of N,N-dimethylformamide (DMF) solvent;

[0073] S2. Add 92mg (0.5mmol) of 2-aminoterephthalic acid (ATA) and 83mg (0.5mmol) of terephthalic acid (BDC) into the S1 mixture, stir at a constant speed until the solute is completely dissolved, and the solution is clear and transparent shape;

[0074] S3. After step S2, the mixed solution was transferred to a stainless steel reaction kettle lined with polytetrafluoroethylene with a volume of 100ml, reacted at 120°C for 48h, and then naturally cooled to room temperature;

[0075] S4. After step S3, filter to obtain a solid product, wash with DMF and anhydrous methanol three times respectively, and freeze-dry, that ...

Embodiment 3

[0076] Example 3 Preparation of a multi-defective amine functionalized metal-organic framework material

[0077] Amine-functionalized metal-organic frameworks were prepared according to the following method:

[0078] S1. At room temperature, 233mg (1mmol) zirconium tetrachloride (ZrCl ) was stirred and dissolved at a constant speed in 50mL of N,N-dimethylformamide (DMF) solvent;

[0079] S2. Add 45.25 mg (0.25 mmol) of 2-aminoterephthalic acid (ATA) and 124.5 mg (0.75 mmol) of terephthalic acid (BDC) into the S1 mixture, stir at a constant speed until the solute is completely dissolved, and the solution is clear and transparent;

[0080] S3. After step S2, the mixed solution was transferred to a stainless steel reaction kettle lined with polytetrafluoroethylene with a volume of 100ml, reacted at 120°C for 48h, and then naturally cooled to room temperature;

[0081] S4. After step S3, filter to obtain a solid product, wash with DMF and anhydrous methanol three times respectiv...

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Abstract

The invention discloses a UiO-66 based MOF (metal organic framework) material for indoor formaldehyde purification at the room temperature and an application of the material. The UiO-66 based MOF material has the specific surface area of 900-1,200 m<2> / g, has acidic unsaturated coordination ZrOx cluster defect sites and contains alkaline amino groups. The prepared UiO-66 based MOF material has difunctional acid-alkali synergetic catalysis capacity, can activate water molecules and promote adsorbed formaldehyde to be converted into relatively non-toxic formic acid and methanol and prevents secondary pollution caused by desorption after saturated adsorption, and meanwhile, the UiO-66 based MOF material facilitates regeneration of a formaldehyde purification material, has great advantages inremoval of formaldehyde from indoor air, and is operated at normal temperature and under normal pressure; the UiO-66 based MOF material has outstanding performance and wide applicability, is free fromsecondary pollution and easy to regenerate, and has certain water resistance and high static saturated formaldehyde adsorption capacity; the speed is high, the saturated adsorption time is 10-20 min,and the applicable formaldehyde concentration range is wide.

Description

technical field [0001] The invention relates to the technical field of adsorption materials, more specifically, to a UiO-66-based metal-organic framework material for indoor formaldehyde purification at room temperature and its application. Background technique [0002] With the improvement of people's living standards, indoor air quality has attracted much attention, and formaldehyde, as the most common and widespread volatile organic compound (VOCs), is particularly harmful to human health. According to the research report of the World Health Organization, formaldehyde pollution can cause various diseases such as nasopharyngeal cancer, leukemia, stimulation of respiratory mucosa, and fetal malformation. Indoor formaldehyde mainly comes from interior decoration materials such as building materials, furniture and paint, and has the characteristics of long release time. According to statistics, people spend 80% of their time indoors, and the potential risks of long-term expo...

Claims

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Application Information

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IPC IPC(8): B01J20/22B01J20/30B01D53/02C08G83/00
CPCB01J20/226B01J20/30B01D53/02C08G83/008B01D2257/70
Inventor 刘升卫李淑萍张书萍施双汝
Owner SUN YAT SEN UNIV
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