Nickel-doped metal organic framework material and preparation method thereof

A technology of metal-organic frameworks and nickel ions, applied in chemical instruments and methods, other chemical processes, water/sludge/sewage treatment, etc., can solve the problems of lack of functional groups and adsorption sites, low pollutant adsorption performance, etc., to achieve Improve adsorption effect, increase specific surface area and porosity, and synthesize simple effects

Inactive Publication Date: 2018-11-30
HUNAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, metal-organic frameworks lack functional groups and adsorption sites, resulting in poor adsorption performance for pollutants in water.

Method used

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  • Nickel-doped metal organic framework material and preparation method thereof
  • Nickel-doped metal organic framework material and preparation method thereof
  • Nickel-doped metal organic framework material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] A nickel-doped metal-organic framework material, including MIL-53(Fe), wherein MIL-53(Fe) is doped with nickel ions.

[0029] In this embodiment, the molar ratio of nickel ions to MIL-53(Fe) is 1:1.

[0030] A method for preparing the nickel-doped metal-organic framework material in the above embodiment, comprising the following steps:

[0031] (1) Weigh ferric chloride hexahydrate, terephthalic acid and nickel chloride hexahydrate and disperse in N,N dimethylformamide (DMF), stir for 3 hours at a speed of 300r / min to obtain a mixed solution ; Wherein, the molar ratio of ferric chloride hexahydrate, terephthalic acid and N,N dimethylformamide is 1:1:56, and the molar ratio of nickel chloride hexahydrate and ferric chloride hexahydrate is 1 : 1.

[0032] (2) Put the mixed solution prepared in step (1) in a reaction kettle lined with polytetrafluoroethylene, and carry out solvothermal reaction at a temperature of 170° C., and the reaction time is 24 hours.

[0033] (3)...

Embodiment 2

[0035] A nickel-doped metal-organic framework material, which is basically the same as the nickel-doped metal-organic framework material in Example 1, except that the molar ratio of nickel ions to MIL-53(Fe) is 1:3.

[0036] A method for preparing the nickel-doped metal-organic framework material in this example is basically the same as that in Example 1, the only difference being: nickel chloride hexahydrate and trichloride hexahydrate in step (1) The molar ratio of iron is 1:3.

[0037] The nickel-doped metal-organic framework material prepared in Example 2 is named Ni-MIL-53(Fe)-3.

Embodiment 3

[0039] A nickel-doped metal-organic framework material, which is basically the same as the nickel-doped metal-organic framework material in Example 1, except that the molar ratio of nickel ions to MIL-53(Fe) is 1:5.

[0040] A method for preparing the nickel-doped metal-organic framework material in this example is basically the same as that in Example 1, the only difference being: nickel chloride hexahydrate and trichloride hexahydrate in step (1) The molar ratio of iron is 1:5.

[0041] The nickel-doped metal-organic framework material prepared in Example 3 is named Ni-MIL-53(Fe)-5.

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Abstract

The invention discloses a nickel-doped metal organic framework material and a preparation method thereof. The nickel-doped metal organic framework material comprises MIL-53 (Fe) and the MIL-53 (Fe) isdoped with nickel ions. The preparation method comprises the following steps: mixing ferric chloride hexahydrate, terephthalic acid, nickel dichloride hexahydrate and N,N-dimethylformamide to carry out a solvothermal reaction to obtain the nickel-doped metal organic framework material. The nickel-doped metal organic framework material of the invention has larger adsorption amount, better stability and good adsorption performance, is simple to synthesize, can be widely used, can efficiently adsorb and remove pollutants in water bodies and is a novel adsorbent. The preparation method of the invention has the advantages of simple operation, convenient preparation, less kinds of raw materials, high yield, low cost and the like, is suitable for large-scale preparation and is advantageous for industrial utilization.

Description

technical field [0001] The invention belongs to the field of composite materials, and relates to a nickel-doped metal organic framework material and a preparation method thereof. Background technique [0002] As a porous functional material, metal-organic frameworks (MOFs) are mainly composed of central metal ions and organic ligands through chemical bonds. Due to their ultra-high porosity, large specific surface area, adjustable pore size and shape As well as easy functionalization, it has become a research hotspot. However, MOFs lack functional groups and adsorption sites, resulting in poor adsorption performance for pollutants in water. Therefore, how to comprehensively improve the performance of existing metal organic framework materials, obtain a metal organic framework material with good stability and good adsorption performance, and obtain a metal organic framework material with simple operation, few types of raw materials, and low cost. Preparation method , which i...

Claims

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Application Information

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IPC IPC(8): B01J20/22B01J20/30C02F1/28
CPCB01J20/0225B01J20/226B01J20/30C02F1/285
Inventor 熊炜平曾茁桐李鑫曾光明肖嵘杨朝晖赖萃曹姣周成赟汤湘秦蕾文晓凤
Owner HUNAN UNIV
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