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PIM-1-based mixed matrix membrane and preparation method thereof

A PIM-1, mixed matrix membrane technology, applied in the field of membrane materials, can solve problems such as slow recovery and duration of myocardial damage

Pending Publication Date: 2021-11-30
CHINA UNIV OF PETROLEUM (EAST CHINA)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The damage caused by ethyl acetate poisoning to human liver and myocardium lasts for a long time, and the recovery is slow

Method used

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  • PIM-1-based mixed matrix membrane and preparation method thereof
  • PIM-1-based mixed matrix membrane and preparation method thereof
  • PIM-1-based mixed matrix membrane and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0047] (1) The preparation process of a mixed matrix membrane based on PIM-1 in this example: first, accurately weigh Zr°Cl2 8H2O (1.93 g) into a round bottom flask with a magnetic stirring bar, add deionized Water (20 mL), stirring continuously at a constant speed at room temperature until the zirconium oxychloride octahydrate is completely dissolved. Accurately weigh trimesic acid (0.42 g) into a round bottom flask, stir and sonicate for 30 min until completely dissolved. Accurately weigh acetic acid (20 mL) and concentrated hydrochloric acid (200 μL), and add them dropwise into the round bottom flask while stirring. Connect the round-bottomed flask to the condensing reflux tube, and connect the top of the condensing tube to a balloon to ensure a constant pressure in the reactor. Place the round-bottomed flask in an oil bath, keep stirring at 110°C, and react for 20 h. After the reaction was completed, it was cooled to room temperature, and the solid product was collected b...

Embodiment 2

[0056] (1) The preparation process of a mixed matrix membrane based on PIM-1 in this example: first, accurately weigh zirconium oxychloride octahydrate (1.93 g) into a round bottom flask with a magnetic stirring bar, add deionized Water (20 mL), stirring continuously at a constant speed at room temperature until the zirconium oxychloride octahydrate is completely dissolved. Accurately weigh trimesic acid (0.42 g) into a round bottom flask, stir and sonicate for 30 min until completely dissolved. Accurately weigh acetic acid (20 mL) and concentrated hydrochloric acid (200 μL), and add them dropwise into the round bottom flask while stirring. Connect the round-bottom flask to the condensation reflux tube, and connect the top of the condensation tube to a balloon to ensure a constant pressure in the reactor. Place the round-bottom flask in an oil bath, keep stirring at 110 °C, and react for 20 h. After the reaction was completed, it was cooled to room temperature, and the solid ...

Embodiment 3

[0065] (1) Preparation process: First, accurately weigh zirconium oxychloride octahydrate (1.93 g) into a round bottom flask with a magnetic stirring bar, add deionized water (20 mL), and continue stirring at a constant speed at room temperature until chlorine octahydrate Zirconia dissolves completely. Accurately weigh trimesic acid (0.42 g) into a round bottom flask, stir and sonicate for 30 min until completely dissolved. Accurately weigh acetic acid (20 mL) and concentrated hydrochloric acid (200 μL), and add them dropwise into the round bottom flask while stirring. Connect the round-bottom flask to the condensation reflux tube, and connect the top of the condensation tube to a balloon to ensure a constant pressure in the reactor. Place the round-bottom flask in an oil bath, keep stirring at 110 °C, and react for 20 h. After the reaction was completed, it was cooled to room temperature, and the solid product was collected by centrifugation. Put the solid precipitate in a ...

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Abstract

The invention discloses a PIM-1-based mixed matrix membrane and a preparation method thereof, and belongs to the technical field of membrane materials. According to the preparation method, an intrinsic microporous polymer PIM-1 is taken as a membrane main body, a metal-organic framework material MOF-808 (Zr) is taken as an additive, and a solution casting-solvent evaporation method is adopted to prepare the PIM-1-based mixed matrix membrane. The preparation method comprises the following steps: preparing the MOF-808 (Zr), preparing the PIM-1 and preparing the MOF-808 coated PIM-1 membrane. A permeability comparison diagram shows that MOF-808 coated PIM-1 mixed matrix membranes with different composition proportions have certain permeability selectivity to ethyl acetate / N2, and when the doping amount of MOF-808 is controlled within the optimal range, the permeability rate of ethyl acetate is increased, and the permeability selectivity is improved. The PIM-1-based mixed matrix membrane can be used for treating VOCs-containing waste gas.

Description

technical field [0001] The invention belongs to the technical field of membrane materials, and in particular relates to a PIM-1-based mixed matrix membrane and a preparation method thereof. Background technique [0002] Ethyl acetate, as a common industrial solvent and an important organic synthesis raw material, is widely used. Ethyl acetate is a low-toxic chemical reagent, volatile, and will irritate sensitive parts such as eyes, nose, and throat after human contact. Symptoms of acute poisoning reactions are headache, dizziness, fatigue, chest tightness, nausea, vomiting, abdominal pain, and loss of appetite. Inhalation of higher concentrations of ethyl acetate vapor will produce anesthesia on the human body, easily cause acute pulmonary edema, and cause varying degrees of damage to the liver and kidneys. The damage caused by ethyl acetate poisoning to human liver and myocardium lasts for a long time, and the recovery is slow. [0003] Polymers of intrinsic microporosity...

Claims

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Application Information

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IPC IPC(8): B01D69/14B01D67/00C08G83/00
CPCB01D69/141B01D67/0002C08G83/008
Inventor 郭振济赵东风刘忠源逄佳
Owner CHINA UNIV OF PETROLEUM (EAST CHINA)
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