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Preparation method of Fe (III)-containing magnetic nano material

A magnetic nanometer and magnetic particle technology, applied in chemical instruments and methods, alkali metal oxides/hydroxides, inorganic chemistry, etc., can solve problems such as high energy consumption, high reaction temperature, and complex reaction conditions, and achieve low energy consumption , environmental friendliness and high productivity

Active Publication Date: 2016-06-01
NORTHEAST INST OF GEOGRAPHY & AGRIECOLOGY C A S
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The purpose of the present invention will solve the existing problems of high reaction temperature, high energy consumption and complex reaction conditions in the existing method for preparing ferromagnetic nanomaterials for adsorbing arsenic, and provide a method for preparing magnetic nanomaterials containing Fe(Ⅲ)

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  • Preparation method of Fe (III)-containing magnetic nano material
  • Preparation method of Fe (III)-containing magnetic nano material
  • Preparation method of Fe (III)-containing magnetic nano material

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specific Embodiment approach 1

[0013] Specific embodiment 1: This embodiment is a preparation method of Fe(Ⅲ)-containing magnetic nanomaterial, which is specifically completed by the following steps:

[0014] 1. Preparation of magnetic particles: ①, FeCI 3 ·6H 2 O was dissolved in deionized water I, and sonicated under nitrogen for 20min~40min to obtain FeCI with a concentration of 0.270g / mL 3 Solution, ②, FeCI 2 ·4H 2 O was dissolved in deionized water Ⅱ, and sonicated under nitrogen protection for 20min~40min to obtain FeCI with a concentration of 0.099g / mL 2 Solution, ③, the FeCI concentration of 0.270g / mL 3 Solution and FeCI with a concentration of 0.099g / mL 2 The solution is mixed, and the mixed solution is obtained after mixing. Adjust the pH of the mixed solution to 8.5~9.5 with 2mol / L ammonia solution, then stir for 1h~1.5h at the temperature of 25~30℃, and separate the solid and liquid to obtain the black solid product. , First rinse the black solid product with deionized water 2 to 3 times, then rinse ...

specific Embodiment approach 2

[0016] Specific embodiment two: the difference between this embodiment and the specific embodiment one is: in step one ①, FeCI 3 ·6H 2 O was dissolved in deionized water I, and sonicated for 30 minutes under nitrogen protection to obtain FeCI with a concentration of 0.270g / mL 3 Solution. Others are the same as the first embodiment.

specific Embodiment approach 3

[0017] Specific embodiment three: This embodiment is different from specific embodiment one or two in that: in step one ②, FeCI 2 ·4H 2 O was dissolved in deionized water Ⅱ, and sonicated under nitrogen protection for 20min~40min to obtain FeCI with a concentration of 0.099g / mL 2 Solution. Others are the same as the first or second embodiment.

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Abstract

The invention discloses a preparation method of a Fe (III)-containing magnetic nano material, relates to a preparation method of an iron-containing magnetic nano material, and aims at solving the problems that in an existing preparation method of an iron-containing magnetic nano material for adsorbing arsenic, the reaction temperature is high, energy consumption is high, and the reaction conditions are complex. The preparation method comprises the steps that 1, magnetic particles are prepared; 2, blending is performed to obtain the Fe (III)-containing magnetic nano material. The invention further discloses application of the Fe (III)-containing magnetic nano material, and the Fe (III)-containing magnetic nano material is used for adsorbing arsenous acid ions by serving as an adsorbing agent. The preparation method has the advantages that energy consumption is low, and the reaction can be performed under stirring at room temperature; environmental friendliness is achieved, cheap metal salts FeCl3.6H2O and FeCl2.4H2O and sodium carboxymethylcellulose are used as reagents, deionized water is taken as solvent, and no template or other toxic reagent needs to be added; the yield is high, and large-scale preparation can be achieved. The preparation method is mainly used for preparing the Fe (III)-containing magnetic nano material.

Description

Technical field [0001] The invention relates to a method for preparing a ferromagnetic nano material. Background technique [0002] Arsenic in water bodies has become one of the pollutants that increasingly threaten human life and health. At present, arsenic has been detected in the groundwater of the United States, China, Bangladesh and other places to exceed the standard. Therefore, people are actively developing practical arsenic adsorption materials. As a new type of arsenic adsorption material, nano-scale iron-containing oxide / hydroxide has the characteristics of low price and excellent adsorption performance, and has broad application prospects in the field of water environment. However, nano-scale materials have the disadvantage of difficulty in recycling and will bring secondary health threats. Therefore, it is imperative to synthesize a magnetic iron-containing hydroxide. [0003] At present, many researchers have studied iron-containing oxide magnetic nanomaterials an...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J20/02B01J20/28B01J20/30C02F1/28
CPCB01J20/0229B01J20/28009C02F1/281C02F2101/103
Inventor 于洪文杨宏旺
Owner NORTHEAST INST OF GEOGRAPHY & AGRIECOLOGY C A S
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