MOF-545 PCN-222(H)

Product Name

Name：MOF-545 PCN-222(H)

^{Product Overview}

 

Metal-organic frameworks (MOFs) are organic-inorganichybrid materials formed by the assembly of metal ions and organic ligands. The concept of MOFs was first proposed in 1995 by Yaghi and Li, who synthesized the first MOFs material with cobalt as the metal site and pyridine as the organic ligand. In 2012, Zhou Hongcai's research group designed and synthesized the three-dimensional porphyrin MOFs material PCN-222 with one-dimensional pore structure by connecting hexazerium atomic clusters with tetracarboxylporphyrin (TCPP). Each Zr6 cluster coordinates eight TCPP carboxyl ligands. As a result, the symmetry of the Zr6 carboxyl group decreases from Oh to D4h, which may create additional space and form mesoporous pores. The theoretical aperture of the MOFs is up to 3.7nm. The pore sizes of nitrogen adsorption and desorption experiments were 3.2nm and 1.3nm, and the BET surface area was 2200m2/g. Porphyrin centers can also be added to iron, cobalt, nickel, copper, zinc, manganese and other different metals, can also be added without any metal. The preparation method of PPCN-222 usually involves metal ions (such as Zr^6+) joining with organic ligands (such as tetracarboxyporphyrins) to form porous structures via coordination bonds.

^{Technical Parameter}

Molecular formula:C96H68N8O32Zr6

Diameter:20-250nm

Length:0.5-2.5μm

Appearance:Dark purple powder

Specific surface area:~1463m2/g

Porous diameter (theoretical value):3.7nm;1.3nm

 

^{Product Features}

Porosity: PPCN-222 has a high surface area and well-defined porous structure with a theoretical pore diameter of 3.7nm, giving it a large internal surface area suitable for adsorption and storage of gases and molecules.

Stability: PPCN-222 is very stable in boiling water and even 2M hydrochloric acid, which is relatively rare in MOFs materials, showing its excellent chemical stability.

Functional tunability: PPCN-222's porphyrin center can be combined with different kinds of transition metals, or can be metal-free, through different modifications and loads, can give it a variety of functions.

Catalytic activity: As a catalyst support material, the large internal surface area and adjustable pore size of PCN-222 allow the introduction of catalytic active sites, improving the efficiency of chemical reactions.

Application Fields

 

Gas Storage and separation: The PPCN-222 has been studied for the storage of gases such as hydrogen, methane, and carbon dioxide, and its porous structure and customized pore size make it an attractive candidate for clean energy storage and gas separation applications.

Catalytic field: As a catalyst carrier or catalyst itself, PPCN-222 shows excellent catalytic performance in a variety of chemical reactions, such as photocatalytic organic reactions, hydrogenation reactions, etc.

Drug delivery: By loading drug molecules, PPCN-222 can achieve controlled drug release, improve drug bioavailability and therapeutic effectiveness.

Environmental remediation: With its adsorption properties, PPCN-222 can be used to remove pollutants from water and air, such as heavy metal ions, organic pollutants, etc.

Bioprobe: The fluorescent properties of PPCN-222 make it potentially useful in the field of bioimaging and biodetection, such as as a bioprobe for cell labeling and tracking.

 

^{Related Information}

 

This product is easy to moisture, be sure to dry at room temperature protected from light, sealed state shelf life of one year. The product can be activated before use to achieve the best product condition (increase Specific surface area and pore diameter). The activation conditions are described as follows:

1. Before the adsorption experiment, the synthesized PCN-222 (~100 mg) sample was immersed in 40mL DMF to remove the unreacted starting ligand, inorganic material and trifluoroacetic acid at a reaction temperature and time of 120ºC 12h.

2.  To optimize the activation process, add a specific amount of water HCl solution to the DMF suspension of PCN-222 (optimal condition: 1.5 mL 8M hydrochloric acid solution to 40mL DMF suspension).

3. Then, the extract was carefully poured out and washed once with DMF and acetone. Fresh acetone was then added and the sample was allowed to stay for 24 hours to exchange and remove non-volatile solvation (DMF).

4. After removing acetone, the samples were dried under vacuum for 6h, then dried again at 120¡ãCfor 12 h using the "degassing" function of the adsorption apparatus, followed by gas adsorption / desorption measurements.

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