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Method for synthesizing Cu-BTC material by utilizing deep-eutectic solvent as solvent

A deep eutectic solvent and solvent technology, applied in the field of adsorption and extraction of dibenzothiophene, can solve the problems of difficult control and implementation, high volatility, environmental pollution, etc., and achieve the effects of easier recovery, high adsorption performance and environmental friendliness

Inactive Publication Date: 2016-02-03
DALIAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although extraction and desulfurization can be carried out at normal temperature and pressure, the commonly used extraction agents are basically organic solvents, which are highly volatile, highly toxic, and seriously pollute the environment.
Biological desulfurization is relatively effective, but difficult to control and implement

Method used

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  • Method for synthesizing Cu-BTC material by utilizing deep-eutectic solvent as solvent
  • Method for synthesizing Cu-BTC material by utilizing deep-eutectic solvent as solvent

Examples

Experimental program
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Effect test

Embodiment 1

[0021] Add choline chloride and ethylene glycol into the reactor at a molar ratio of 1:2, stir in an oil bath at 80°C under reflux condensation until the two raw materials are evenly mixed into a liquid, and continue stirring for 4 hours; The deep eutectic solvent ChCl / ethylene glycol used in this example was obtained by vacuum drying for 24 hours.

[0022] Weigh 1.0531g of trimesic acid and 2.5512g of copper nitrate trihydrate into the reactor, add 10mL of deep eutectic solvent ChCl / ethylene glycol to dissolve, seal the reactor, place it in a constant temperature drying oven, and heat it to 100°C , Reaction 24h. Take out the reactor, wash it twice with deionized water and absolute ethanol (200mL / time) to obtain a solid product, first dry it in a drying oven at 70°C for 5h, and then vacuum dry it in a vacuum oven at 100°C for 24h , to obtain Cu-BTC material. Sealed and stored in dry conditions for later use.

Embodiment 2

[0024] Add choline chloride and ethylene glycol into the reactor at a molar ratio of 1:2, stir in an oil bath at 80°C under reflux condensation until the two raw materials are evenly mixed into a liquid, and continue stirring for 4 hours; The deep eutectic solvent ChCl / ethylene glycol used in this example was obtained by vacuum drying for 24 hours.

[0025] Weigh 2.1012g of trimesic acid and 5.2014g of copper nitrate trihydrate into the reactor, add 15mL of deep eutectic solvent ChCl / ethylene glycol to dissolve, seal the reactor, place it in a constant temperature drying oven, and heat it to 100°C , Reaction 24h. Take out the reactor, wash it twice with deionized water and absolute ethanol (200mL / time) respectively, and dry the solid product at 70°C for 5h in a drying oven, and then vacuum dry at 100°C for 24h in a vacuum drying oven , to obtain Cu-BTC material. Sealed and stored in dry conditions for later use.

Embodiment 3

[0027] Add choline chloride and N,N-dimethylurea into the reactor at a molar ratio of 1:2, stir in an oil bath at 80°C under reflux condensation until the two raw materials are uniformly mixed into a liquid, and then continue to stir for 4 hours; After completion, vacuum-dry at 60° C. for 24 hours to obtain the deep eutectic solvent ChCl / N,N-dimethylurea used in this example.

[0028] Weigh 2.1012g of trimesic acid and 5.2014g of copper nitrate trihydrate into the reactor, add 10mL of deep eutectic solvent ChCl / N,N-dimethylurea to dissolve, seal the reactor and place it in a constant temperature drying oven , heated to 100 ° C, the reaction 24h. Take out the reactor, wash it twice with deionized water and absolute ethanol (200mL / time) respectively, and dry the solid product at 70°C for 5h in a drying oven, and then vacuum dry at 100°C for 24h in a vacuum drying oven , to obtain Cu-BTC material. Sealed and stored in dry conditions for later use.

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Abstract

The invention provides a method for synthesizing a Cu-BTC material through a solvothermal method by utilizing a deep-eutectic solvent as a solvent. The Cu-BTC material prepared by virtue of the method is capable of effectively adsorbing dibenzothiophene in a normal octane solvent of dibenzothiophene; the Cu-BTC material is high in adsorptive property, strong in selectivity and good in deep desorption degree of dibenzothiophene; after being cleaned and dried, the Cu-BTC material which adsorbs dibenzothiophene can be recycled; the recycling operation is simple, no toxic organic solvent is used, and the operation conditions are mild and environmentally friendly.

Description

technical field [0001] The invention relates to a method for using a deep eutectic solvent as a solvent to synthesize a Cu-BTC material by a solvothermal method, and a method for using the Cu-BTC material to absorb and extract dibenzothiophene. Background technique [0002] In recent years, with the increasing development of the automobile industry, exhaust emissions have seriously affected the environment and become the main cause of severe weather such as smog and acid rain. As the main component of exhaust gas, organic sulfides are the most harmful, mainly causing acid rain and other hazards. Therefore, it is of great significance to use new technology and new technology to reduce the sulfur content in fuel oil to realize the cleanliness of fuel oil. [0003] At present, there are two main desulfurization methods commonly used in industry. The first method is hydrodesulfurization, which can effectively eliminate fat sulfur and non-fat sulfur in fuel oil, but it is diffi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07F1/08B01J20/22B01D15/08
Inventor 李长平牛茂群尹静梅崔颖娜杨光
Owner DALIAN UNIV
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