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Preparation and application of two-dimensional microporous cadmium compounds with active sites

A cadmium compound and active site technology is applied in the field of preparation of two-dimensional microporous cadmium compounds to achieve the effects of good selectivity, high thermal stability and large specific surface area

Active Publication Date: 2019-11-05
WEST ANHUI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the search for modified electrode materials will be the biggest challenge

Method used

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  • Preparation and application of two-dimensional microporous cadmium compounds with active sites
  • Preparation and application of two-dimensional microporous cadmium compounds with active sites
  • Preparation and application of two-dimensional microporous cadmium compounds with active sites

Examples

Experimental program
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Effect test

Embodiment 1

[0032] A preparation method of a two-dimensional microporous cadmium compound with active sites:

[0033] S1: The mixture obtained by mixing 0.10 mmol of 2,5-bis(4-pyridyl)pyrimidine ligand and 0.10 mmol of 5-nitroisophthalic acid ligand with 0.10 mmol of Cd(CH 3 COOH) 2 2H 2 Put O together in a 10ml reaction kettle, add 2mL DMF solvent and 1mL acetonitrile solution, add 2 drops of HNO 3 (mass concentration is 62%) and 0.2mL deionized water, and its pH measurement is 6.0, and now the solution is a transparent liquid;

[0034] S2: Seal and heat the small glass bottle to 100°C, continue heating for 5 days, and then cool down to room temperature at a rate of 5°C / h. At this time, colorless blocky crystals are precipitated in the small glass bottle, and the yield is 75%.

[0035] Compound (C 61 h 39 Cd 2 N 11 o 12 ) Elemental analysis (%): Calculated value: C, 54.56; H, 2.93; N, 11.43. Experimental value: C, 54.23; H, 2.77; N, 11.38. –1 ): 3444(m), 3312(s), 2982(m), 2764(m...

Embodiment 2

[0055] A preparation method of a two-dimensional microporous cadmium compound with active sites:

[0056] S1: The mixture obtained by mixing 0.10 mmol of 2,5-bis(4-pyridyl)pyrimidine ligand and 0.10 mmol of 5-nitroisophthalic acid ligand with 0.10 mmol of Cd(CH 3 COOH) 2 2H 2 Put O together in a 10ml reaction kettle, add 2mL DMF solvent and 1mL acetonitrile solution, add 2 drops of HNO 3 (mass concentration is 50%) and 0.2mL deionized water, and its pH measurement is 5.5, and now the solution is a transparent liquid;

[0057] S2: Seal and heat the small glass bottle to 110°C, continue heating for 7 days, and then cool down to room temperature at a rate of 5°C / h. At this time, colorless blocky crystals are precipitated in the small glass bottle, and the yield is 73%.

Embodiment 3

[0059] A preparation method of a two-dimensional microporous cadmium compound with active sites:

[0060] S1: The mixture obtained by mixing 0.10 mmol of 2,5-bis(4-pyridyl)pyrimidine ligand and 0.10 mmol of 5-nitroisophthalic acid ligand with 0.10 mmol of Cd(CH 3 COOH) 2 2H 2 Put O together in a 10ml reaction kettle, add 2mL DMF solvent and 1mL acetonitrile solution, add 2 drops of HNO 3 (mass concentration is 55%) and 0.2mL deionized water, and its pH measurement is 6.5, and now the solution is a transparent liquid;

[0061] S2: The small glass bottle was sealed and heated to 120°C, continued heating for 10 days, and then cooled to room temperature at a rate of 5°C / h. At this time, colorless blocky crystals were precipitated in the small glass bottle, and the yield was 72%.

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Abstract

The invention relates to a two-dimensional microporous cadmium compound with active sites, the chemical formula of the cadmium compound is C 61 h 39 Cd 2 N 11 o 12 , monoclinic system, the space group is P21 / m, the unit cell parameters are α=γ=90°, β=104.75°, Z=2. The two-dimensional pores and Fe of the compound in the present invention 3+ ions are matched, and the active sites in the channels can interact with Fe 3+ The ions interact, so the compound is specific to the probe of some substances, and is not affected by other ions when detecting the target metal ion, and has good selectivity for the target analyte.

Description

technical field [0001] The invention relates to the technical field of spacer compounds, in particular to the preparation and application of a two-dimensional microporous cadmium compound with active sites. Background technique [0002] Iron (Ⅲ) ions are an essential element in physiological processes, but high concentrations of iron ions can displace metal ions in the living body, causing disease or death by disrupting the dynamic balance of substances in cells. [0003] In industrial production, many chemical reactions are inseparable from iron, and the content of iron in the discharged industrial wastewater often exceeds the standard. Because the iron(Ⅲ) ion concentration is too high, it will produce toxic effects, which makes people urgently need to develop a method with high sensitivity and high selectivity to detect the content of iron(Ⅲ) ion in the environment. In order to make the detection limit of iron(Ⅲ) ions at the ppb level, various effective methods have been ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08G83/00G01N27/26G01N27/30G01N27/48
CPCC08G83/008G01N27/26G01N27/308G01N27/48
Inventor 金俊成徐光年王寅嵩陈昌明陈龙
Owner WEST ANHUI UNIV
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