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Cadmium-based metal-organic framework material as well as preparation method and application thereof

An organic framework and metal-based technology, which is applied in the field of cadmium-based metal-organic framework materials and their preparation, can solve the problems of limiting the potential of practical applications, insufficient material stability, and less multifunctional application development, and achieves low cost, Ease of large-scale production and high yield

Inactive Publication Date: 2019-02-12
XUZHOU NORMAL UNIVERSITY
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] 2. At present, the multifunctional application of MOFs materials is less developed and the stability of the materials is not enough, which greatly limits its potential for practical applications in the field of detection / catalysis

Method used

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  • Cadmium-based metal-organic framework material as well as preparation method and application thereof
  • Cadmium-based metal-organic framework material as well as preparation method and application thereof
  • Cadmium-based metal-organic framework material as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] Weigh H 3TCA (4.1mg, 0.012mmol), abp (4.6mg, 0.025mmol) and Cd(NO 3 ) 2 4H 2 O (17.2mg, 0.056mmol) in a 10ml screw-top glass vial, add 5ml of ethanol, then place the glass vial in a polytetrafluoroethylene hydrothermal synthesis reactor, then place the hydrothermal synthesis reactor in a constant temperature drying oven In the reaction at 110°C for 48h. After the reaction, cool to obtain orange blocky crystals, filter, wash with ethanol for 5 times, and dry at 90° C. for 7 hours to obtain the metal-organic framework material Cd-TCAA with a yield of 84%. Its crystal structure is as figure 1 As shown, it can be seen that the structure is a three-dimensional network structure with the channel.

[0044] Solid UV-visible absorption spectrum test of materials

[0045] Weigh 10 mg of the material Cd-TCAA in Example 1 and load it into a sample for solid ultraviolet testing. Test results such as figure 2 As shown, it can be seen that the material has a broad absorptio...

Embodiment 2

[0052] Weigh H 3 TCA (3.8mg, 0.011mmol), abp (3.9mg, 0.021mmol) and Cd(NO 3 ) 2 4H 2 O (14.4mg, 0.047mmol) in a 10ml screw-top glass vial, add 5ml of ethanol, then place the glass vial in a polytetrafluoroethylene hydrothermal synthesis reactor, then place the hydrothermal synthesis reactor in a constant temperature drying oven In the reaction at 110°C for 48h. After the reaction, cool to obtain orange blocky crystals, filter, wash with ethanol three times, and dry at 90° C. for 8 hours to obtain the metal-organic framework material Cd-TCAA with a yield of 78%.

[0053] The crystal structure of the Cd-TCAA prepared in this example is similar to that of the Cd-TCAA prepared in Example 1.

Embodiment 3

[0055] Weigh H 3 TCA (4.1mg, 0.012mmol), abp (4.4mg, 0.024mmol) and Cd(NO 3 ) 2 4H 2 O (16.6mg, 0.054mmol) in a 10ml screw-top glass vial, add 5ml of ethanol, then place the glass vial in a polytetrafluoroethylene hydrothermal synthesis reactor, then place the hydrothermal synthesis reactor in a constant temperature drying oven In the middle, react at 115°C for 50h. After the reaction, cool to obtain orange blocky crystals, filter, wash with ethanol for 4 times, and dry at 100°C for 7 hours to obtain the metal-organic framework material Cd-TCAA with a yield of 80%.

[0056] The crystal structure of the Cd-TCAA prepared in this example is similar to that of the Cd-TCAA prepared in Example 1.

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Abstract

The invention discloses a cadmium-based metal-organic framework material as well as a preparation method and application thereof. Metal ions Cd<2+> are used as nodes, 4,4',4''-tricarboxytriphenylamineis used as an organic linking main ligand, 4,4'-azopyridine is used as an auxiliary ligand, and the metal-organic framework material is prepared by using a solvothermal method; the chemical formula of the material is [Mm(L1)n(L2)b(EtOH).(EtOH)q], wherein L1 is the 4,4',4''-tricarboxytriphenylamine, L2 is the 4,4'-azopyridine, M is the metal ions Cd<2+>, m=1.5, n=1, b=0.5, and q=2. The material provided by the invention has high selectivity for the detection of 4-hydroxyl-4'-nitrobiphenyl, and can also be used as a photocatalyst for degrading methylene blue; the preparation process provided bythe invention is simple, environmentally-friendly, low in cost and suitable for large scale preparation.

Description

technical field [0001] The invention relates to the field of metal-organic framework materials, in particular to a cadmium-based metal-organic framework material and its preparation method and application. Background technique [0002] With the increasing speed of the development of human society, the development of industrialization goes hand in hand. In this way, the amount of chemical effluents in various industries and manufacturing processes is continuously increasing, and many toxic substances have caused great harm to human bodies and the environment. Nitroaromatic compounds account for a large proportion of these toxic substances, and 4-hydroxy-4'-nitrobiphenyl (HNBP) is one of them, and its wide application has also brought serious environmental pollution problems. In addition, organic dyes, as the main polluting components in industrial wastewater, have complex characteristics such as complex composition, high chroma, toxicity, strong acid and strong alkali, which...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07F3/08C08G83/00C09K11/06G01N21/64B01J31/22C02F1/30C02F101/30C02F101/38
CPCG01N21/643C09K11/06C02F1/30C07F3/003C08G83/008B01J31/1691B01J31/2213C02F2305/10C02F2101/40C02F2101/38C02F2101/308B01J35/39
Inventor 武鹏彦夏玲玲郑晓甜汤嘉伟王健
Owner XUZHOU NORMAL UNIVERSITY
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