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Composite adsorbing material of metal organic framework and cuprous salt and preparation method and application thereof

A composite adsorption material and metal-organic framework technology, which is applied in the fields of alkali metal compounds, chemical instruments and methods, adsorption water/sewage treatment, etc., can solve problems that have not been seen yet, achieve good application prospects, be easy to realize, and increase adsorption capacity Effect

Inactive Publication Date: 2017-05-17
JIANGSU UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Based on the advantages of high specific surface area, adjustable pores and easy modification of metal organic framework materials, metal organic framework materials are widely used to adsorb and remove methyl orange in aqueous solution. However, monovalent copper salt and metal organic framework HKUST A report on the composite material composed of -1 as an adsorbent material for the removal of methyl orange

Method used

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  • Composite adsorbing material of metal organic framework and cuprous salt and preparation method and application thereof
  • Composite adsorbing material of metal organic framework and cuprous salt and preparation method and application thereof
  • Composite adsorbing material of metal organic framework and cuprous salt and preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] (1) Preparation of HKUST-1 metal-organic framework material

[0024] HKUST-1 was synthesized by hydrothermal method, 1.0 g of 1,3,5-benzenetricarboxylic acid was weighed, dissolved in 30 mL of ethanol / DMF solution with a volume ratio of 1:1, and then 2.077 g copper nitrate trihydrate. React at 100°C for 10h, then absorb the upper layer solution, add DMF to soak for 24h, then change to dichloromethane and soak for 24h, and finally dry it at room temperature, and dry it under vacuum at 120°C for 4h before use.

[0025] (2) Purification treatment cuprous chloride

[0026] Weigh 3-6g of crude cuprous chloride salt, place it in a large open beaker, add a small amount of concentrated hydrochloric acid, just cover the copper salt, add a large amount of deionized water, and then suction filter under the protection of ethanol , and vacuum-dried above 80°C for more than 4 hours. Among them, 3 mL of concentrated hydrochloric acid was added to every 1 g of copper salt until the ...

Embodiment 2

[0033] Purify cuprous chloride, weigh 0.0333g of cuprous chloride after purification, grind it initially at room temperature, then grind it again with 0.3g of HKUST-1, and then bake it at 200°C for 2h in an argon atmosphere , to obtain a composite material composed of cuprous chloride and HKUST-1, wherein the mass fraction of cuprous chloride is 10%. Wherein, the preparation of HKUST-1 and the purification method of cuprous chloride are the same as in Example 1.

[0034] Dissolve 1g of methyl orange in 1000mL of water to prepare an aqueous solution with a methyl orange content of 1000ppm. The mass of the adsorption material in the test tube is 0.05g, add 20mL methyl orange aqueous solution into the test tube, and stir rapidly. After 5min, 15min, 30min, 60min, 120min, 240min, 480min, and 720min, take out the supernatant, measure the content of methyl orange in the taken supernatant with an ultraviolet spectrophotometer, and calculate the adsorption amount. The results are sho...

Embodiment 3

[0037]Purify cuprous chloride, weigh 0.0529g of cuprous chloride after purification, grind it initially at room temperature, then grind it again with 0.3g of HKUST-1, and then roast it at 200°C for 2h in an argon atmosphere , to obtain a composite material composed of cuprous chloride and HKUST-1, wherein the mass fraction of cuprous chloride is 15%. Wherein, the preparation of HKUST-1 and the purification method of cuprous chloride are the same as in Example 1.

[0038] Dissolve 1g of methyl orange in 1000mL of water to prepare an aqueous solution with a methyl orange content of 1000ppm. The mass of the adsorption material in the test tube is 0.05g, add 20mL methyl orange aqueous solution into the test tube, and stir rapidly. After 5min, 15min, 30min, 60min, 120min, 240min, 480min, and 720min, take out the supernatant, measure the content of methyl orange in the taken supernatant with an ultraviolet spectrophotometer, and calculate the adsorption amount. The results are sho...

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Abstract

The invention discloses a composite adsorbing material of a metal organic framework and cuprous salt and a preparation method and application thereof. The adsorbing material is compounded by the metal organic framework HKUST-1 and cuprous salt and is a brand-new composite adsorbing material, wherein the HKUST-1 has a very high specific surface area and can form physical adsorption with azobenzene dyes such as methyl orange, and the cuprous salt is attached to the surface of the KHUST-1 and is uniformly dispersed, so that the adsorption capacity of the material on organic dyes is favorably improved. The preparation method disclosed by the invention is simple and feasible and is easy to realize; and furthermore, the composite material can be widely applied to organic dyes for removing azobenzene, and particularly has good application prospects in the aspect of removing dyes, such as methyl orange, Sudan red, reactive black, methyl red and dimethyl yellow.

Description

technical field [0001] The present invention relates to an adsorption material based on a metal organic framework and its preparation method and application, in particular to a composite material of a metal organic framework and a monovalent copper salt and a preparation method thereof, and the removal of the material in an aqueous solution The application of organic dyes belongs to the technical field of preparation and application of functional materials. Background technique [0002] With the increasingly serious environmental problems, human society attaches great importance to the comprehensive management of the environment. The random discharge of industrial wastewater is one of the important causes of environmental pollution. Industrial wastewater contains a large number of harmful pollutants. Azo dyes represented by methyl orange are highly toxic and can cause cancer. Removing azo dyes from industrial wastewater is an urgent need for environmental governance. [00...

Claims

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Application Information

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IPC IPC(8): B01J20/22B01J20/28B01J20/30C02F1/28C02F101/30C02F101/38
CPCB01J20/226B01J20/28057C02F1/288C02F2101/308C02F2101/38
Inventor 殷俞文志豪袁爱华
Owner JIANGSU UNIV OF SCI & TECH
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