Copper coordination compound with property of catalyzing photodegradation of dyes, and preparation method thereof

A copper complex, photodegradation technology, applied in the direction of organic chemistry methods, copper organic compounds, organic compounds/hydrides/coordination complex catalysts, etc., to achieve good removal effect, easy operation and good reproducibility.

Inactive Publication Date: 2020-05-19
YANCHENG TEACHERS UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

A series of complexes with the property of photodegrading dyes have been reported, but there are rela

Method used

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  • Copper coordination compound with property of catalyzing photodegradation of dyes, and preparation method thereof
  • Copper coordination compound with property of catalyzing photodegradation of dyes, and preparation method thereof
  • Copper coordination compound with property of catalyzing photodegradation of dyes, and preparation method thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] The synthesis of embodiment 1 ligand BMIOPE:

[0025] 4,4'-bis(2-methyl -1-imidazolyl) diphenyl ether (BMIOPE);

[0026]

[0027] The molar ratio of 4,4'-dibromodiphenyl ether: 2-methylimidazole: potassium carbonate: cuprous oxide is 2:6:8:1; the reaction temperature is 150° C., and the reaction time is 3 days.

Embodiment 2

[0028] The synthesis of embodiment 2 complexes:

[0029] 12.08mg of copper nitrate trihydrate (Cu(NO 3 ) 2 ·3H 2 O), 16.5 mg of 4,4'-bis(2-methyl-1-imidazolyl) diphenyl ether (BMIOPE), 12.3 mg of 5-bromoisophthalic acid (H 2 TBIP) was dissolved in 0.5mL dimethylformamide (DMF) and 2.5mL aqueous solution, ultrasonically oscillated for 5 minutes to mix evenly, and after mixing, put it into the polytetrafluoroethylene liner of the hydrothermal reaction kettle to obtain a mixed solution, and the above The mixed solution was baked at 100°C for 72 hours, and the solid was separated after the product was taken out to obtain blue blocky crystals.

Embodiment 3

[0030] The structural characterization of embodiment 3 complexes:

[0031] Use a microscope to select a single crystal of a suitable size, and use a Siemens (Bruker) SMART CCD diffractometer (graphite monochromator, Mo-Ka, ) to collect diffraction data. Diffraction data were corrected for absorption using the SADABS program. Data restoration and structure elucidation were done using the SAINT and SHELXTL programs, respectively. The coordinates of all non-hydrogen atoms were determined by the least square method, and the positions of the hydrogen atoms were obtained by the theoretical hydrogenation method. The crystal structure was refined using the least squares method. Figure 1(a) and Figure 1(b) show the basic coordination and stacking modes. Some parameters of its crystallographic diffraction point data collection and structure refinement are shown in the table below.

[0032] Table 1 Crystallographic data of the complexes

[0033]

[0034]

[0035] R 1 =∑||F ...

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Abstract

The invention provides a copper metal coordination compound and a preparation method thereof, and applications in catalytic photodegradation of methylene blue and methyl orange organic dyes, wherein the chemical formula of the coordination compound is [Cu(BMIOPE)(Br-BDC)]n, BMIOPE is equal to 4,4'-bis(2-methyl-1-imidazolyl)diphenyl ether, Br-H2BDC is equal to 5-bromoisophthalic acid, and the copper metal coordination compound is of a two-dimensional network structure formed by self-assembly of copper ions through BMIOPE and a Br-H2BDC ligand. Experimental results show that the copper coordination compound has good properties of catalyzing light degradation and removing organic dyes in water, has potential application value in the field of environmental pollution treatment, and is simple insynthesis process, mild in reaction condition and convenient to use, and a new means is provided for treatment of harmful substances in the environment, and meanwhile a new thought is provided for application of a porous material in environmental engineering.

Description

technical field [0001] The invention belongs to the technical field of organic synthesis and organometallic chemistry, and specifically relates to a copper compound with 4,4'-bis(2-methyl-1-imidazolyl)diphenyl ether and 5-bromoisophthalic acid as a ligand. The preparation of the complex and its application in catalytic photodegradation to remove methylene blue and methyl orange organic dyes from water. Background technique [0002] Energy shortage and environmental pollution are the key problems faced by human beings in the new century, and the development of new energy sources, such as wind energy, solar energy, nuclear energy, etc., is the main way to deal with this problem. Photocatalysis is an important means to use solar energy to solve the current global energy shortage and environmental crisis. In recent years, in order to further enhance the photocatalytic activity, semiconductor-like photocatalysts with different structure types have been developed, especially poro...

Claims

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Application Information

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IPC IPC(8): C07F1/08B01J31/22C02F1/30C02F101/30
CPCB01J31/2217B01J35/004B01J2531/0241B01J2531/16C02F1/30C02F2101/308C02F2305/10C07B2200/13C07F1/005
Inventor 王俊张晨徐进
Owner YANCHENG TEACHERS UNIV
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