Micropore terbium-based metal-organic framework material and preparation method and application thereof

An organic framework and metal-based technology, applied in the field of crystalline materials science, can solve the problems that are rarely reported, and achieve the effect of cheap and easy-to-obtain synthetic raw materials, mild conditions, and good application prospects

Inactive Publication Date: 2016-10-12
ZHENGZHOU UNIVERSITY OF LIGHT INDUSTRY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there are few reports on such materials

Method used

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  • Micropore terbium-based metal-organic framework material and preparation method and application thereof
  • Micropore terbium-based metal-organic framework material and preparation method and application thereof
  • Micropore terbium-based metal-organic framework material and preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] Example 1: Preparation of microporous terbium-based metal-organic framework materials

[0030] Mix 2,4,6-tris[1-(3-carboxyphenoxy)methyl]-1,3,5-trimethylbenzene (0.03 mmol, 17.1 mg) with terbium nitrate (preferably terbium nitrate hexahydrate , 0.1mmol, 45.4mg) was dissolved in a mixed solvent of DMF (6mL) and NMP (1mL) and sealed in a 25mL hydrothermal reaction kettle. Then the reaction mixture was heated at 10° C. per hour to 140° C., maintained at this temperature for 3 days, and then lowered to room temperature to obtain colorless prismatic crystals with a yield of about 50%. The main infrared absorption peaks are: 3394m, 1656s, 1551s, 1442s, 1408s, 1238m, 1134w, 1010m, 827w, 772m, 685w.

Embodiment 2

[0031] Example 2: Preparation of microporous terbium-based metal-organic framework materials

[0032] 2,4,6-tris[1-(3-carboxyphenoxy)methyl]-1,3,5-trimethylbenzene (0.2mmol, 114.1mg) and terbium nitrate (0.5mmol, 226.5mg) Dissolve in a mixed solvent of DMF (5mL) and NMP (5mL) and seal in a 25mL hydrothermal reactor. Then the reaction mixture was heated at 10°C per hour to 120°C, maintained at this temperature for 3 days, and then lowered to room temperature to obtain colorless prismatic crystals with a yield of about 35%. The main infrared absorption peaks are: 3394m, 1656s, 1551s, 1442s, 1408s, 1238m, 1134w, 1010m, 827w, 772m, 685w.

Embodiment 3

[0033] Example 3: Preparation of microporous terbium-based metal-organic framework materials

[0034] 2,4,6-tris[1-(3-carboxyphenoxy)methyl]-1,3,5-trimethylbenzene (0.02mmol, 11.4mg) and terbium nitrate (0.08mmol, 36.2mg) Dissolve in a mixed solvent of DMF (6mL) and NMP (4mL) and seal in a 25mL hydrothermal reaction kettle. Then the reaction mixture was heated at 10° C. per hour to 120° C., maintained at this temperature for 3 days, and then lowered to room temperature to obtain colorless prismatic crystals with a yield of about 45%. The main infrared absorption peaks are: 3394m, 1656s, 1551s, 1442s, 1408s, 1238m, 1134w, 1010m, 827w, 772m, 685w.

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Abstract

The invention discloses a micropore terbium-based metal-organic framework material and a preparation method and application thereof. The micropore terbium-based metal-organic framework material has the chemical formula of [Tb(L)(H2O)](H2O)3(DMF)0.75(NMP)0.75, wherein L represents 2,4,6-tris[1-(3-carboxyl phenoxy)]methyl-1,3,5-trimethylbenzene anionic ligand, DMF represents N,N'-dimethylformamide, NMP represents 1-methyl-2-pyrrolidinone, the condensed structural formula of L is as shown in the description, the metal-organic framework material is crystallized to Monoclinic, the space group is C2 / c, the cell parameters are that a=30.773(2), b=9.3088(4) angstroms, c=30.411(2) angstroms, beta=111.272(8) degrees, V=8118.2(9) angstroms<3>, and the main infrared absorption peaks of the micropore terbium-based metal-organic framework material are 3,394 m, 1,656 s, 1,551 s, 1,442 s, 1,408 s, 1,238 m, 1,134 w, 1,010 m, 827 w, 772 m and 685 w. The micropore terbium-based metal-organic framework material is obvious in change of Fe<3+> ion fluorescence intensity, detection on Fe<3+> ions can be effectively conducted, the preparation technology is simple, the raw materials are low in price and easy to obtain, the condition is mild, and the material can be prepared on a large scale easily.

Description

technical field [0001] The invention particularly relates to a microporous terbium-based metal-organic framework material and its preparation method and application, belonging to the field of crystalline material science. Background technique [0002] Metal-organic frameworks (MOFs) are a new type of organic-inorganic hybrid materials, which use metal ions or metal clusters as nodes and organic ligands as connecting units. Coordination between bodies, crystal materials with periodic one-dimensional, two-dimensional or three-dimensional network structures constructed by self-assembly. Due to the advantages of porosity, adjustable structure and size, and excellent thermal and chemical stability, MOFs materials have potential applications in energy gas storage, catalysis, optics, electricity, magnetism, and biomedicine. Luminescent MOFs materials are a new generation of solid-state luminescent materials. The metal units, organic ligand units, and guest molecules in their compo...

Claims

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Application Information

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IPC IPC(8): C08G83/00G01N21/64
CPCC08G83/008G01N21/643G01N2021/6432
Inventor 杜淼刘春森陈敏徐文明
Owner ZHENGZHOU UNIVERSITY OF LIGHT INDUSTRY
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