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A kind of nano iron molybdenum-graphene composite material and its preparation method and application

A composite material, graphene technology, applied in chemical instruments and methods, other chemical processes, water/sludge/sewage treatment, etc., can solve the problems of low adsorption capacity and difficult separation, and achieve large adsorption capacity and high reaction efficiency. , the effect of good adsorption effect

Active Publication Date: 2022-04-22
INST OF RESOURCES UTILIZATION & RARE EARTH DEV GUANGDONG ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, traditional adsorbents have disadvantages such as low adsorption capacity and difficult separation.

Method used

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  • A kind of nano iron molybdenum-graphene composite material and its preparation method and application

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] This embodiment provides a nano-iron-molybdenum-graphene composite material, in which Fe:Mo:C=3:1:1 (mass ratio), and its preparation method is as follows.

[0034] Put graphene oxide (1g) into the reaction bottle, add 200mL water, add 14gFeSO 4 ·6H 2 O and 2.5g Na 2 MoO 4 2H 2After O, continue to sonicate for half an hour, add 6 g of potassium borohydride dropwise and react for 1 h, then filter to obtain a composite material of Fe:Mo:C=3:1:1.

[0035] Such as figure 1 , is the infrared spectrum of the nano-iron-molybdenum-graphene composite material. It can be seen from the figure that in the prepared graphene, the carbonyl group is basically reduced, and there is still a certain amount of C-O.

Embodiment 2

[0037] This embodiment provides a nano-iron-molybdenum-graphene composite material, in which Fe:Mo:C=2:1:1 (mass ratio), and its preparation method is as follows.

[0038] Put graphene oxide (1g) into the reaction bottle, add 200mL water, add 4.65g FeSO 4 ·6H 2 O and 2.5g Na 2 MoO 4 2H 2 After O, continue to sonicate for half an hour, add 6 g of potassium borohydride dropwise and react for 1 h, then filter to obtain a composite material of Fe:Mo:C=2:1:1.

Embodiment 3

[0040] This embodiment provides a nano-iron-molybdenum-graphene composite material, in which Fe:Mo:C=2:2:1 (mass ratio), and its preparation method is as follows.

[0041] Put the obtained solid into the reaction bottle, add 200mL water, add 4.65g FeSO 4 ·6H 2 O and 5gNa 2 MoO 4 2H 2 After O, continue to sonicate for half an hour, add 6 g of potassium borohydride dropwise and react for 1 h, then filter to obtain a composite material of Fe:Mo:C=2:2:1.

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Abstract

The invention relates to a nano-iron-molybdenum-graphene composite material and a preparation method and application thereof. The preparation method comprises the following steps: ultrasonically dispersing graphene oxide in water, adding iron salt and molybdenum salt, and then adding a reducing agent for reaction to obtain the nano-iron-molybdenum-graphene composite material. The present invention adopts a one-pot method for preparation, and the iron salt, molybdenum salt and graphene oxide are respectively reduced to nano-iron, nano-molybdenum and graphene through a reducing agent, and at the same time, the loading of nano-iron and nano-molybdenum on the graphene is realized. Iron and molybdenum can chelate with organic matter and heavy metal ions in wastewater to improve the adsorption capacity of graphene, and iron can increase the loading ratio of molybdenum. All have good adsorption. The preparation method of the invention has easy-to-obtain raw materials, simple process, high reaction efficiency, convenient separation and treatment of products, low use cost, and is favorable for industrial application.

Description

technical field [0001] The invention belongs to the technical field of adsorption materials, and in particular relates to a nano-iron-molybdenum-graphene composite material and a preparation method and application thereof. Background technique [0002] Wastewater in metal processing, hard and brittle material processing, printing and dyeing, mineral processing, chemical industry and other industries contains a lot of organic pollutants and heavy metal ions, common ones include methylene blue, methylene orange, ethylamine, aniline, monoethylamine, Dimethylamine, diethylamine, trimethylamine, monopropylamine, dipropylamine, isopropylamine, ethylenediamine, monoethanolamine, diethanolamine, and triethanolamine tend to cause eutrophication of water bodies, and consume a large amount of oxygen during the decomposition process, affecting water biological growth. After entering the environment or ecosystem, heavy metal wastewater and organic wastewater remain, accumulate and migra...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J20/20C02F1/28C02F101/20C02F101/30
CPCB01J20/0229B01J20/0218B01J20/20C02F1/281C02F2101/20C02F2101/30
Inventor 杨改霞王先行谢武何佳正苏冬
Owner INST OF RESOURCES UTILIZATION & RARE EARTH DEV GUANGDONG ACAD OF SCI