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Preparation method of graphene/ferrate multi-stage three-dimensional structure dye adsorbent

A three-dimensional structure, ferrite technology, used in chemical instruments and methods, other chemical processes, etc., can solve problems such as pollution, and achieve the effects of stable chemical properties, high specific surface area, and good dispersion performance

Inactive Publication Date: 2016-03-02
JIANGNAN GRAPHENE RES INST +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It is released into water bodies during production and use, causing serious pollution

Method used

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  • Preparation method of graphene/ferrate multi-stage three-dimensional structure dye adsorbent
  • Preparation method of graphene/ferrate multi-stage three-dimensional structure dye adsorbent
  • Preparation method of graphene/ferrate multi-stage three-dimensional structure dye adsorbent

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0012] Example 1: Weigh 0.01 of graphene oxide powder into a beaker, add 15ml of distilled water, and ultrasonically disperse evenly. Dissolve and mix zinc sulfate, ferrous sulfate, and oxalic acid in distilled water at a ratio of 1:2:1, and add them into the graphene dispersion liquid for ultrasonic dispersion. The uniform mixed solution was transferred to a polytetrafluoroethylene hydrothermal kettle, placed in a 100-degree oven, and the reaction time was 12 hours. After the reaction was completed, the hydrothermal kettle was taken out, the product was filtered and washed, and the dried powder sample was calcined in a 200-degree muffle furnace for 3 hours at a temperature of 300 degrees. The calcined product was taken out and used for the adsorption test of Congo red dye.

example 2

[0013] Example 2: Weigh 0.05g of graphene oxide powder into a beaker, add 5ml of distilled water, and ultrasonically disperse evenly. Use methanol to dissolve and mix zinc sulfate, ferrous sulfate, and oxalic acid in a substance ratio of 1:2:5, and add them to the graphene dispersion liquid for ultrasonic dispersion. The uniform mixed solution was transferred to a polytetrafluoroethylene hydrothermal kettle, placed in an oven at 150 degrees, and the reaction time was 16 hours. After the reaction was completed, the hydrothermal kettle was taken out, the product was filtered and washed, and the dried powder sample was calcined in a 400-degree muffle furnace for 5 hours at a temperature of 500 degrees. The calcined product was taken out and used for the adsorption test of Congo red dye.

example 3

[0014] Example 3: Weigh 0.1 g of graphene oxide powder into a beaker, add 10 ml of distilled water, and ultrasonically disperse evenly. Dissolve and mix zinc sulfate, ferrous sulfate, and oxalic acid with ethanol at a ratio of 1:2:3, and add them into the graphene dispersion liquid to disperse evenly by ultrasonic. The uniform mixed solution was transferred to a polytetrafluoroethylene hydrothermal kettle, placed in a 200-degree oven, and the reaction time was 6 hours. After the reaction was completed, the hydrothermal kettle was taken out, the product was filtered and washed, and the dried powder sample was calcined in a 400-degree muffle furnace for 6 hours at a temperature of 400 degrees. The calcined product was taken out and used for the adsorption test of Congo red dye.

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Abstract

The invention discloses a preparation method of a graphene / ferrate multi-stage three-dimensional structure dye adsorbent. The method includes the following steps of weighing 0.01-1 g of graphene oxide powder, placing the powder in a beaker, adding 5-50 ml of distilled water, conducting uniform ultrasonic dispersion, mixing zinc sulfate, ferrous sulfate and an oxalic acid solution according to the substance amount ratio of 1 to 2 to 1-10, injecting the mixture into dispersion liquid, transferring the dispersed mixed solution into a hydrothermal kettle of polytetrafluoroethylene, placing the hydrothermal kettle in an oven to be subjected to a reaction, taking out the hydrothermal kettle out after the reaction ends, conducting suction filtration, washing and drying on reactant in the hydrothermal kettle, and placing the dried powder sample in a muffle furnace to be roasted, wherein the roasting temperature is 300-800 DEG C, and the roasting time is 2-8 hours. The roasted sample is used for the Congo red dye adsorption test. The sample prepared through the method has a high specific area, a novel morphology structure and good adsorption performance for Congo red.

Description

Technical field [0001] The invention relates to a preparation method of a graphene / ferrite multi-level three-dimensional structure dye adsorbent, specifically, a hydrothermal method is used to compound graphene oxide base and zinc ferrite to generate a novel multi-level porous dye adsorbent . The functionalized multi-stage porous nanoparticles prepared by the invention have the characteristics of high specific surface area, novel shape structure, stable chemical properties, good dispersion performance and the like, and can be used for the adsorption of Congo red dye in sewage. The method involved in the invention is simple, the raw materials are easy to obtain, it is suitable for the adsorption and removal of dyes in different samples, and has broad application prospects. Background technique [0002] Graphene material is a new type of two-dimensional carbon nanomaterial, which is similar to carbon nanotubes. After redox, graphene monomers tend to form secondary stacks to f...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J20/20B01J20/30
Inventor 贾宝平王秋泽丁建宁王小周
Owner JIANGNAN GRAPHENE RES INST
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