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Zinc reagent and preparation method and application thereof

A technology of zinc reagent and zinc perchlorate, which is applied in the direction of chemical instruments and methods, zinc organic compounds, physical/chemical process catalysts, etc., can solve the problems of low degradation efficiency of macromolecular organic matter, easy formation of waste residue, high cost of chemicals, etc., to achieve Good industrial application prospects, high-efficiency photocatalytic degradation, and good catalytic activity

Active Publication Date: 2014-07-16
ANHUI NORMAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Among them, the adsorption method has high treatment efficiency and small adsorption interference, but its disadvantages are high cost of chemicals and low compliance rate
The cost of biochemical treatment is low, and it can treat a variety of organic substances. The disadvantage is that the degradation efficiency of artificially synthesized macromolecular organic substances is very low, and some of them cannot even operate.
The coagulation sedimentation method is simple and easy to implement. If it is combined with an oxidant, it can also remove reducing substances in the water at the same time. The disadvantage is that it is easy to form waste residues and cause secondary pollution to the environment.

Method used

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  • Zinc reagent and preparation method and application thereof
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  • Zinc reagent and preparation method and application thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0027] In a 50ml one-necked flask, add a polytetrafluoroethylene magnetic stirring bar, and add 2mmol zinc perchlorate, 4mmol1,1-bis(1-methylimidazolethione)methane, add 10ml methanol and 10ml dichloro Mix the methane solvent evenly, react for 6 hours at room temperature at 20°C under the protection of nitrogen, a precipitate precipitates out of the solution, filter the filtrate, wash the solid with methanol and ether, and dry to obtain 1.19g (80%) white Solid, 1,1-two (1-methylimidazolium thione) zinc perchlorate coordination compound, that is, zinc reagent. 1 H NMR (300MHz, CD 3 CN): δ(ppm)=3.39(s,2CH 3 ,6H),6.41(s,CH 2 ,2H),7.29(d,imidazole,2H),7.30(d,imidazole,2H),7.57(d,imidazole,2H),7.58(d,imidazole,2H); 13 C NMR (300MHz, CD3CN): δ (ppm) = 36.89 (CH 3 ), 59.44 (CH 2 ), 118.37 (imidazole), 121.65 (imidazole), 124.36 (imidazole), 152.91 (C=S).

[0028] Take a 100mL beaker, add 150mg of zinc reagent, and then add 400mL of 10mg / L methyl orange solution, ultrasonic for ...

Embodiment 2

[0035] In a 50ml one-necked flask, add a polytetrafluoroethylene magnetic stirring bar, and weigh 2mmol of zinc perchlorate, 10mmol of 1,1-bis(1-methylimidazolethione)methane, add 10ml of methanol and 10ml of di Mix the methyl chloride solvent evenly, react for 6 hours at 30°C under the protection of nitrogen at room temperature, a precipitate precipitates out of the solution, filter the filtrate, wash the solid with methanol and ether, and dry to obtain 1.10g (79%) white Solid, 1,1-bis(1-methylimidazolethione) zinc perchlorate coordination compound.

Embodiment 3

[0037] In a 50ml one-necked flask, add a polytetrafluoroethylene magnetic stirring bar, and weigh 20mmol of zinc perchlorate, 4mmol of 1,1-bis(1-methylimidazolethione)methane, add 10ml of methanol and 10ml of di Mix the methyl chloride solvent evenly, react for 7 hours at room temperature at 10°C under the protection of nitrogen, a precipitate precipitates out of the solution, filter the filtrate, wash the solid with methanol and ether, and dry to obtain 1.25g (81%) white Solid, 1,1-bis(1-methylimidazolethione) zinc perchlorate coordination compound.

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Abstract

The invention discloses a zinc reagent and a preparation method and application thereof. An efficient zinc reagent catalyst is synthesized by taking 1, 1-bis (1-methylimidazole thione) methane and zinc perchlorate as raw materials. Compared with the prior art, the zinc reagent has the advantages of simple process, simplicity and convenience in operation, low cost and the like, and the zinc reagent can perform photocatalytic degradation on azo type colored compounds efficiently, has good catalytic activity for methyl orange and can be recycled many times. In the aspect of treatment of organic sewage, the zinc reagent has good industrial application prospects.

Description

technical field [0001] The invention belongs to the technical field of organic catalyst synthesis, and in particular relates to a zinc reagent and its preparation method and application. Background technique [0002] With the development of dyestuff and printing and dyeing industry, printing and dyeing wastewater has become one of the most important sources of water pollution. The treatment of printing and dyeing industrial wastewater has always been a major problem in the field of wastewater treatment at home and abroad. Some azo dyes (such as methyl orange) and fluorone dyes (such as rhodamine B) may be reduced to aromatic amines under anaerobic conditions, which are highly carcinogenic (CN102068979A). Traditional industrial methods for removing organic dye wastewater include adsorption, biochemical, and coagulation-sedimentation methods. Among them, the adsorption method has high treatment efficiency and small adsorption interference, but its disadvantages are high cost...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07F3/06B01J31/22C02F1/30C02F101/34C02F101/38
Inventor 贾卫国戴源晨孙影盛恩宏
Owner ANHUI NORMAL UNIV
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