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Preparation method and application of foamed three-dimensional graphene oxide

A three-dimensional, foam-like technology, applied in chemical instruments and methods, inorganic chemistry, carbon compounds, etc., can solve problems such as danger, achieve fast removal speed, excellent saturated adsorption capacity, and wide pH range

Inactive Publication Date: 2019-08-09
NORTH CHINA ELECTRIC POWER UNIV (BAODING)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The method uses strong oxidant potassium permanganate and concentrated sulfuric acid, and the preparation process has certain dangers

Method used

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  • Preparation method and application of foamed three-dimensional graphene oxide
  • Preparation method and application of foamed three-dimensional graphene oxide
  • Preparation method and application of foamed three-dimensional graphene oxide

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] Prepare foamy three-dimensional graphene oxide according to the following steps:

[0037] (1) with glucose (C 6 h 12 o 6 ) as carbon source, supplemented with ammonium chloride (NH 4 Cl) is the foaming agent, and the glucose and the foaming agent ammonium chloride are fully ground and mixed in an agate mortar according to the mass ratio of 1:1, and the temperature is raised to 250°C at 4°C / min under an inert atmosphere and kept for 1 hour , and then continue to heat up to 900°C and keep at 900°C for 6 hours, and naturally cool to room temperature to obtain a foamy black three-dimensional graphene precursor, marked as 3D graphene;

[0038](2) After the black three-dimensional three-dimensional graphene precursor obtained in step (1) is moderately ground, it is placed in the air, and after secondary calcination at a temperature of 150 ° C for 6 hours, foamy three-dimensional three-dimensional graphene oxide is obtained, which is marked as 3D GO-150.

Embodiment 2

[0040] The difference from Example 1 is that the temperature in step (2) is 250°C; the resulting foamy three-dimensional graphene oxide is marked as 3D GO-250.

Embodiment 3

[0042] The difference from Example 1 is that the temperature in step (2) is 350°C; the resulting foamy three-dimensional graphene oxide is marked as 3D GO-350.

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Abstract

Belonging to the technical field of phenol polluted water restoration, the invention discloses a preparation method and application of foamed three-dimensional graphene oxide. The preparation method includes: taking glucose and ammonium chloride as the raw materials, and conducting high temperature carbonization in an inert atmosphere and calcination in an oxidizing atmosphere in order so as to obtain the foamed three-dimensional graphene oxide. The prepared foamed three-dimensional graphene oxide has excellent saturated adsorption capacity on phenol organic pollutants, fast removal speed andgood regeneration cycling adsorption performance. The preparation method provided by the invention has the characteristics of mild reaction conditions, simple operation, no special requirement for equipment, good product stability and high efficiency, and is suitable for actual large-scale production.

Description

technical field [0001] The invention belongs to the technical field of remediation of phenolic polluted water bodies, and in particular relates to a preparation method and application of foamy three-dimensional graphene oxide. Background technique [0002] Phenolic compounds widely exist in chemical industries such as resin manufacturing, petrochemical, oil refinery, paper making, coking, and iron making, and are an important class of organic pollutants that have caused the deterioration of water quality in recent years. They are easily ionized organic compounds with benzene rings, which exist in non-ionized or ionized forms in water as the pH value of the environment changes. The treatment of phenolic organic polluted water has always been one of the difficult problems in water purification, and its low concentration has huge potential risks to human and animal health, and has been listed as a key treatment target by most national environmental protection departments. The ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01B32/198C02F1/28
CPCC02F1/281C01B32/198
Inventor 陈哲王维雪王苏菲黄强张一飞
Owner NORTH CHINA ELECTRIC POWER UNIV (BAODING)
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