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A kind of metal organic framework material co-pttic-tpb and its synthesis method and application

A metal-organic framework, co-pttic-tpb technology, applied in the cross field of nanomaterials and coordination chemistry, can solve the problems of large equipment investment and high energy consumption, and achieve stability and gas adsorption capacity, high thermal stability, Good water and alkali resistance

Active Publication Date: 2020-09-18
ZHENGZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Traditional chemical absorption capture and separation of CO in power plant flue gas 2 Although the process is simple and easy to operate, the equipment investment is large and the energy consumption is relatively high

Method used

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  • A kind of metal organic framework material co-pttic-tpb and its synthesis method and application
  • A kind of metal organic framework material co-pttic-tpb and its synthesis method and application
  • A kind of metal organic framework material co-pttic-tpb and its synthesis method and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] Example 1: Synthesis of Co-PTTIC of the present invention

[0030] Weigh Co(NO 3 ) 2 ·6H 2 O(18mg), H 6 PTTIC (11mg) is dissolved in a mixed solution of 2mL DMF and 0.5mL deionized water. After the ultrasonic is completely dissolved, add 150μL HBF with a 200μL pipette 4 , Then transfer the mixture to a 25mL stainless steel autoclave, and then react in an oven at 120°C for 3 days (heating time 320min, cooling time 1200min). After cooling to room temperature, red shuttle-like transparent crystals are obtained, filtered and washed with DMF. Obtained pure crystals with a yield of 42%.

Embodiment 2

[0031] Example 2: The present invention adopts precise modification strategy to synthesize Co-PTTIC-TPB

[0032] Weigh Co(NO 3 ) 2 ·6H 2 O(18mg), H 6 PTTIC (11mg), TPB (6mg) are dissolved in a mixed solution of 2mL DMF and 0.5mL deionized water, after the ultrasonic is completely dissolved, add 150μL HBF with a pipette with a volume of 200μL 4 , Then transfer the mixture to a 25mL stainless steel autoclave, and then react in an oven at 120°C for 3 days (heating time 320min, cooling time 1200min). After cooling to room temperature, red square transparent crystals are obtained, filtered and washed with DMF to obtain pure Crystal, the yield is 65%.

[0033] The X-ray powder diffraction (XRD) characterization of the Co-PTTIC and Co-PTTIC-TPB of the present invention: the XRD data obtained by simulating the single crystal structure data of the material and the XRD data measured in the experiment are plotted. {Instrument model: Rigaku D / max-3B diffractometer }.

Embodiment 3

[0034] Example 3: XRD pattern determination of Co-PTTIC of the present invention under different processing conditions

[0035] Take the Co-PTTIC sample of the present invention prepared in Example 1, soak it in fresh methanol for three days, change the methanol twice a day, then dry the sample naturally, then dry the sample in vacuum at 50°C, and measure the XRD patterns respectively . Such as figure 2 , XRD diffraction peaks have gradually shifted, which is a typical feature of the shrinkage of the sample frame structure.

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Abstract

The invention discloses a metal organic framework material Co-pydc-TPB as well as a synthesis method and application thereof and relate to the field of coordination chemistry and nano-materials. On the basis of flexible Co-pydc, a more stable crystalline-state porous material Co-pydc-TPB is obtained by adopting a fixed-point and orientated ligand inserting and accurate modification strategy. A chemical formula of a compound is as follows: [Co3(mu3-OH)(pydc)(TPB)]-(3DMF)(8H2O), and the compound belongs to a hexagonal crystal system; a space group is P-62c, a and b are equal to 14.3390(2) angstrom, c is equal to 14.3590(3) angstrom and V is equal to 2556.78(11) angstrom<3>. The Co-pydc-TPB has the advantages of high thermal stability, good waterproof and alkali-resisting performance, efficient CO2 selective adsorption performance and relatively high actual application value.

Description

Technical field [0001] The invention belongs to the cross field of nanomaterials and coordination chemistry, and specifically relates to a metal-organic framework material Co-PTTIC-TPB, its synthesis method and its application in CO 2 Application in selective adsorption. Background technique [0002] Carbon dioxide capture and storage technology (CCS for short) is one of the most promising solutions for mankind to deal with climate change. Governments and scientific research institutions in various countries are vigorously carrying out basic research work on CCS. Traditional chemical absorption and separation of CO in power plant flue gas 2 Although the process is simple and easy to operate, the equipment investment is large and the energy consumption is high. The physical adsorption method is considered to be a more promising method due to its advantages of low energy consumption, stable performance, mild operating conditions, and strong regeneration. Therefore, it is necessary ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08G83/00B01D53/02
CPCB01D53/02B01D2253/204B01D2257/504C08G83/008Y02C20/40Y02P20/151
Inventor 臧双全张晴晴李海洋
Owner ZHENGZHOU UNIV