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Method for removing dyes in water by utilizing magnetic metal-organic framework material

A technology of organic framework and magnetic metal, applied in the direction of alkali metal compounds, chemical instruments and methods, alkali metal oxides/hydroxides, etc., can solve the problems of complex process, high cost, low processing efficiency, etc., and achieve short removal time , conditions are easy to control, and the method is simple

Inactive Publication Date: 2015-05-13
NORTHEAST FORESTRY UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to solve the problems of complex process, low processing efficiency and high cost in existing methods for removing dyes in water, and to provide a method for removing dyes in water by using magnetic metal-organic framework materials

Method used

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  • Method for removing dyes in water by utilizing magnetic metal-organic framework material
  • Method for removing dyes in water by utilizing magnetic metal-organic framework material
  • Method for removing dyes in water by utilizing magnetic metal-organic framework material

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specific Embodiment approach 1

[0015] Specific Embodiment 1: This embodiment is a method for removing dyes in water by using a magnetic metal-organic framework material, which is specifically completed according to the following steps:

[0016] 1. Preparation of metal-organic framework materials: first, Fe(NO) 3 and 1,3,5-benzenetricarboxylic acid into a polytetrafluoroethylene liner, then add high-purity water to mix and stir evenly, cover it and transfer it to a stainless steel reaction kettle, and seal the stainless steel reaction kettle, then place it in an electric heating drum In an air constant temperature drying oven, react at a temperature of 190-220°C for 7h-10h, and then centrifuge at a speed of 5000rpm-7000rpm for 4min-7min to obtain a brick-red solid product. First, use N,N-dimethylformamide Wash the brick red solid product for 2 to 4 times, then wash with ethanol for 2 to 4 times, and finally wash with high-purity water for 2 to 4 times to obtain the washed product at a temperature of 50 to 70...

specific Embodiment approach 2

[0025] Specific embodiment 2: The difference between this embodiment and specific embodiment 1 is: in step 1, react at a temperature of 200° C. for 8 hours, and then centrifuge at a speed of 6000 rpm for 5 minutes to obtain a brick-red solid product. Others are the same as the first embodiment.

specific Embodiment approach 3

[0026]Embodiment 3: The difference between this embodiment and Embodiment 1 or 2 is that in Step 1, the washed product is vacuum-dried at 60° C. for 12 hours to obtain a metal-organic framework. Others are the same as those in Embodiment 1 or 2.

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Abstract

The invention provides a method for removing dyes in water by utilizing a magnetic metal-organic framework material and relates to the method for removing the dyes in the water, and the method is mainly used for solving the problems of complicated process, low treatment efficiency and high cost of the existing method for removing the dyes in the water. The method comprises the following steps: 1) preparing the metal-organic framework material so as to obtain the metal-organic framework material; 2) preparing the magnetic metal-organic framework material so as to obtain the magnetic metal-organic framework material; 3) removing the dyes in the water, namely firstly, adding the magnetic metal-organic framework material into to-be-treated water, stirring for certain time at a certain stirring speed and carrying out magnetic separation by utilizing a magnet so as to finish the removal of the dyes in the water. The method is mainly used for removing the dyes in the water.

Description

technical field [0001] The invention relates to a method for removing dyes in water bodies. Background technique [0002] With the development of dyes and printing and dyeing industry, there are many kinds of dyes in the world, and dye wastewater has become one of the main harmful industrial wastewater in my country. This type of wastewater has the characteristics of deep color, complex and changeable composition, large discharge, wide distribution, and difficult to degrade. At the same time, organic dyes will accumulate in large quantities in water, store them, and then enrich and amplify through the food chain, thereby affecting human health. The current methods of treating dye wastewater mainly include: activated carbon adsorption method, extraction method, membrane separation method, photocatalytic oxidation method and biological treatment method. However, most of these methods have disadvantages such as complex process, low processing efficiency and high cost. Theref...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J20/28B01J20/30B01J20/22C02F1/28
Inventor 陈立钢刘浩驰吕洁
Owner NORTHEAST FORESTRY UNIVERSITY
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