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Composite material with benzene series adsorption function, preparation method of composite material, method for removing benzene series by using composite material and application of composite material

A composite material, benzene series technology, applied in separation methods, chemical instruments and methods, alkali metal oxides/hydroxides, etc. problem, to achieve the effect of high adsorption capacity of benzene series, stable skeleton structure and strong mechanical strength

Pending Publication Date: 2022-03-01
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to provide a composite material with benzene series adsorption function and Its preparation method and its method for removing benzene series, through the synergistic effect of the two components in the composite material, the skeleton structure of the composite material is stable, and has strong mechanical stability, thermal stability and chemical stability, and The composite material has large pore volume, pore diameter and specific surface area, and has high benzene series adsorption capacity. The method for preparing the composite material is simple and environmentally friendly, and the price of synthetic raw materials is low, which is easy for large-scale production and application.

Method used

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  • Composite material with benzene series adsorption function, preparation method of composite material, method for removing benzene series by using composite material and application of composite material
  • Composite material with benzene series adsorption function, preparation method of composite material, method for removing benzene series by using composite material and application of composite material
  • Composite material with benzene series adsorption function, preparation method of composite material, method for removing benzene series by using composite material and application of composite material

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Embodiment approach

[0033] According to one embodiment of the present invention, the method for preparing MIL-101(Fe) comprises: contacting an iron source with terephthalic acid in a solvent for reaction, and sequentially washing and drying the reacted solid. Wherein, the molar ratio of the iron source calculated as Fe to the terephthalic acid may be 1:0.2-1. The amount of the solvent used is such that the content of the iron source calculated as Fe in the contact system is 0.1-0.5 mol / L. The solvent is preferably N,N-dimethylformamide (N,N-dimethylformamide). The iron source may be a common substance capable of providing iron ions, preferably ferric chloride. The contacting conditions may include: a temperature of 100-120° C. and a time of 15-30 hours. More specifically, the method of self-preparation of MIL-101(Fe) is as follows: FeCl with a molar ratio of 1:0.2-1 3 ·6H 2 O. Terephthalic acid is added to the N,N-dimethylformamide (N,N-dimethylformamide) solvent, and the content of the iron ...

preparation example 1

[0060] Weigh FeCl separately 3 ·6H 2 Add O (13.5g, 0.05mol), terephthalic acid (4.2g, 0.025mol) into N,N-dimethylformamide (N,N-dimethylformamide, 300ml) solvent, stir at room temperature uniform. The mixture was transferred to a polytetrafluoro-lined autoclave and heated at 110°C for 20h. Cool to room temperature and centrifuge (3500rpm, 20min) to separate the solid. Wash the solid with N,N-dimethylformamide, deionized water, and ethanol at 60°C for 12 hours, respectively. The solid was heated in a vacuum oven at 150° C. for 12 hours, and the X-ray powder diffraction test proved that the obtained product was MIL-101(Fe) material. The X-ray powder diffraction test conditions are as follows: German Bruker-AXSD8 automatic X-ray diffractometer is adopted, the light source adopts the Cu target Kα radiation of the radiation source, the tube pressure is 30kV, the tube flow is 30mA, and the scanning is carried out continuously at a scanning speed of 2° / min , The scanning range i...

Embodiment 1

[0062] Add the polymer polyethersulfone (PES, 0.45g) into N,N-dimethylformamide (9ml), heat to dissolve at 60°C and stir evenly, add the MIL-101(Fe) powder prepared in Preparation Example 1 (2.55g), stir well. Add the MOF-polymer mixture dropwise (dropping speed 0.025mL / s) to 100ml reverse-phase solvent deionized water / ethanol mixture (volume ratio 10:1) at room temperature, and the composite material formed is statically in the reverse-phase solvent. After keeping it for 1 hour, soak it with fresh deionized water (50ml) for 3 times, and finally soak it with absolute ethanol (50ml) for 2 times, and dry it to get the MOF / PVFM composite material.

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Abstract

The invention relates to the field of material synthesis, and discloses a composite material with a benzene series adsorption function, a preparation method of the composite material, a method for removing benzene series by using the composite material and application of the composite material. The composite material comprises an association structure formed by a polymer and an iron-based metal organic framework material loaded in the association structure, the weight ratio of the polymer to the iron-based metal organic framework material is 1: (1-20), and the polymer is selected from at least one of polyether sulfone, polyvinyl formal, polypropylene, polyethylene sulfone and polyamide. Through the synergistic effect of the two components in the composite material, the composite material is stable in framework structure and has high mechanical stability, the pore volume, the pore diameter and the specific surface area of the composite material are large, the composite material has high benzene series adsorption capacity, the method for preparing the composite material is simple and environmentally friendly, the price of synthetic raw materials is low, and the composite material is suitable for industrial production. The large-scale production and application are easy.

Description

technical field [0001] The invention relates to the field of material synthesis, in particular to a composite material with a benzene series adsorption function, a preparation method thereof, and a method and application for removing benzene series by using the composite material. Background technique [0002] In recent years, the increasingly serious environmental pollution has attracted widespread attention at home and abroad. Volatile organic compounds (VOCs) are an important factor leading to environmental pollution. Among them, benzene series VOCs are highly carcinogenic and refractory, which are harmful to human health and The ecological environment poses a great threat. Adsorption technology is one of the effective technologies to deal with low-concentration benzene series VOCs in the environment, and the adsorption material is the core of the entire adsorption technology. [0003] Traditional porous adsorption materials include activated carbon, molecular sieve, etc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J20/22B01J20/28B01J20/30B01J20/32B01D53/02
CPCB01J20/226B01J20/28057B01J20/28069B01J20/28078B01J20/3085B01J20/3208B01D53/02B01D2253/25B01D2257/708
Inventor 李莹张红星林雨文桂林肖安山
Owner CHINA PETROLEUM & CHEM CORP
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