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Compound of copper-bismuth double metal coordination polymer and graphene and preparation method thereof

A technology of coordination polymers and graphene, which is applied in organic compound/hydride/coordination complex catalysts, water treatment of special compounds, chemical instruments and methods, etc., can solve the problem of low photocatalytic efficiency and low utilization rate of sunlight , Photocatalyst instability and other problems, to achieve good photocatalysis, simple and convenient preparation method, high stability effect

Inactive Publication Date: 2017-07-14
SHENYANG POLYTECHNIC UNIV
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Problems solved by technology

[0009] The present invention provides a composite of copper-bismuth bimetallic coordination polymer and graphene with excellent photocatalytic properties.

Method used

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  • Compound of copper-bismuth double metal coordination polymer and graphene and preparation method thereof

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preparation example Construction

[0026] Prepare the preparation method of the compound of above-mentioned copper-bismuth bimetallic coordination polymer and graphene, the preparation of the compound of copper-bismuth bimetallic coordination polymer and graphene adopts simple hydrothermal synthesis method, concrete steps are to make 1 ~2 parts of basic copper carbonate, 2~6 parts of bismuth nitrate pentahydrate, 2~3 parts of 4,4'-bipyridine, 3~5 parts of 3,5-pyrazole dicarboxylic acid and less than 50 parts of Graphene was dissolved in 5-15ml of water, ultrasonically treated for half an hour and magnetically stirred for 10 minutes, then placed in a PTFE-lined reactor with a capacity of 20-50ml, sealed and reacted at 150-210°C for 24 ~72 hours, then naturally cooled to room temperature, the mixture was separated by filtration to obtain powder and crystals, respectively, the crystals were washed several times with ethanol and distilled water, and then dried overnight at room temperature.

[0027] The room temper...

Embodiment 1

[0032] 1-2 parts of basic copper carbonate, 2-6 parts of bismuth nitrate pentahydrate, 2-3 parts of 4,4'-bipyridine, 3-5 parts of 3,5-pyrazoledicarboxylic acid and 30 parts Graphene was dissolved in 5-15ml of water, ultrasonically treated for half an hour, and magnetically stirred for 10 minutes, then placed in a polytetrafluoroethylene-lined reaction kettle with a capacity of 20-50ml. Seal the reactor and react at 150-210° C. for 24-72 hours, then naturally cool to room temperature (0-25° C.). The mixture is filtered to obtain powder and crystal (composite of copper-bismuth bimetallic coordination polymer and graphene) respectively, and the crystal is washed several times with ethanol (96%~100%) and distilled water respectively, then at room temperature (0-25 ℃ ) and dried overnight.

Embodiment 2

[0034] The compound of the above-mentioned copper-bismuth bimetallic coordination polymer and graphene degrades Rhodamine B solution under visible light: 0.1 g of copper-bismuth bimetallic coordination polymer and Graphene composites were irradiated with visible light for 10 minutes, and rhodamine B was almost completely degraded. And this composite catalyst is very stable and can be recycled and reused.

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Abstract

The invention relates to a compound of copper-bismuth double metal coordination polymer and graphene and a preparation method thereof. The compound is prepared from the following components in parts by mass: 1-2 parts of basic cupric carbonate, 2-6 parts of bismuth nitrate pentahydrate, 2-3 parts of 4,4'-dipyridyl, 3-5 parts of 3,5-pyrazoline diformic acid and smaller than 50 parts of graphene. The material can quickly degrade a rhodamine B solution under visible light and has a good photocatalytic property. In the preparation process of the material, no strong acids or strong alkali, strong oxidants or toxic reagents are used, so that the compound has the technical advantages of low cost, environment protection and the like.

Description

technical field [0001] The invention relates to a composite of copper-bismuth bimetallic coordination polymer and graphene with excellent photocatalytic performance and a preparation method thereof, belonging to the field of photocatalytic material preparation. Background technique [0002] Water pollution, especially dye wastewater pollution has a very serious impact on human life and the environment. At present, the output of various dyes in my country has reached 900,000 tons, and dye wastewater has become one of the key sources of environmental pollution. The dye industry has a wide variety and complex processes. Its wastewater contains a large amount of organic matter and salt, and has the characteristics of high COD (chemical oxygen demand), deep color, strong acidity and alkalinity, etc., which has always been a difficult problem in wastewater treatment. The phenyl ring group, azo group and other groups contained in the dye wastewater are easy to cause bladder cance...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J31/28C02F1/30
CPCC02F1/30B01J31/28C02F2305/10B01J35/39Y02W10/37
Inventor 史发年芦淼梁芳徐舸王晓磊史桂梅王璐王奥谭继鹏田波
Owner SHENYANG POLYTECHNIC UNIV
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