Preparation method of cobalt ferrite and graphene oxide nano-compound adsorbent for treating water body

A nano-composite, graphene technology, applied in the directions of alkali metal compounds, alkali metal oxides/hydroxides, adsorbed water/sewage treatment, etc., can solve the problems of incapable metal ions and aggregation of pollution, and increase the adsorption performance. and dispersibility, improving performance, and the effect of large pore structure

Pending Publication Date: 2020-12-01
HARBIN UNIV OF SCI & TECH
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  • Application Information

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Problems solved by technology

[0003] In order to solve the problem that a large amount of nuclear waste produced in the subsequent processing of nuclear fuel, that is, uranium or other actinides pollution, and uranium waste liquid treatment adsorbents cannot gather trace metal ions from the aqueous phase system

Method used

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  • Preparation method of cobalt ferrite and graphene oxide nano-compound adsorbent for treating water body
  • Preparation method of cobalt ferrite and graphene oxide nano-compound adsorbent for treating water body
  • Preparation method of cobalt ferrite and graphene oxide nano-compound adsorbent for treating water body

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Embodiment 1

[0022] Embodiment 1, the preparation method that cobalt ferrite and graphene oxide nanocomposite is applied to adsorbent to treat water body comprises the following preparation steps:

[0023] (1) prepare the required graphene of the present invention, low temperature stage, middle temperature stage and high temperature stage, wherein the temperature of middle temperature stage is kept on 40-60 ℃;

[0024] (2) Ultrasonic method strips graphite oxide and disperses it in deionized water to prepare an aqueous suspension;

[0025] (3) FeSO 4 ·7H 2 O and CoCl 2 4H 2 O was dissolved in a mixture of ethylene glycol and distilled water, then graphite oxide and ammonia water were added and stirred, and then the mixture was transferred to a high-pressure reactor at 180°C for 24 hours;

[0026] (4) The product obtained after magnetic separation was repeatedly washed with distilled water and ethanol, and finally dried in an oven for 12 hours at a drying temperature of 60°C.

[0027] ...

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Abstract

The present invention relates to a preparation method of a CoFe2O4@rGO nano-compound. The unique adsorption property of the nano-compound is used to treat a large amount of nuclear waste produced after nuclear fuel combustion. The invention aims to solve the problems of harm of uranium element in actinide elements to biological health and repollution and non-persistence of part of existing adsorbents. The method adopted by the invention mainly comprises the following steps: ultrasonically stripping graphite oxide, and preparing the CoFe2O4@rGO compound by a hydrothermal reaction method. The experimental method is simple and easy to operate, raw materials are easy to obtain and low in cost, and the prepared compound is excellent in performance.

Description

technical field [0001] The invention relates to the preparation of a novel material that a magnetic nanocomposite is used as an adsorbent to treat water bodies. Background technique [0002] With the rapid development of modern industry and economy, the pollution of the environment is also increasing, especially the problem of water pollution has attracted great attention. The burning of fossil fuels and the use of nuclear fuels have caused a lot of pollution. However, the existing Adsorbents in the current treatment technology have limited treatment efficiency for this type of pollution problem, and are likely to cause more serious pollution. In recent years, nanomaterials have been widely praised for their advantages of large surface area and active functional centers, and their application in water treatment has a good effect. Graphene has attracted widespread attention due to its cheap, easy-to-obtain and unique physical and chemical properties. It can not only be used ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J20/20B01J20/28B01J20/30C02F1/28
CPCB01J20/0225B01J20/0229B01J20/20B01J20/28009C02F1/283
Inventor 谭立超何然然马慧媛
Owner HARBIN UNIV OF SCI & TECH
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