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Method for preparing thiolated nano ferroferric oxide magnetic polymer composite material

A technology of ferroferric oxide and polymer materials, which is applied in chemical instruments and methods, iron oxide/iron hydroxide, oxides of ferrous iron, etc. It can solve the problems of difficult control of the proportion of functional groups, long reaction cycle, cumbersome operation, etc. problems, to achieve the effects of controllable magnetic content, shortened reaction cycle, and simple operation

Inactive Publication Date: 2011-10-12
NINGBO INST OF TECH ZHEJIANG UNIV ZHEJIANG
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, due to the use of toxic 1,4-dioxane as a reaction solvent in the reaction, the reaction cycle is long, the operation is cumbersome, and the proportion of functional groups is not easy to control, so its application is greatly limited.

Method used

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  • Method for preparing thiolated nano ferroferric oxide magnetic polymer composite material
  • Method for preparing thiolated nano ferroferric oxide magnetic polymer composite material
  • Method for preparing thiolated nano ferroferric oxide magnetic polymer composite material

Examples

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Embodiment 1

[0035] (1) Weigh 11.12g (0.04mol) FeSO respectively 4 ·7H 2 O and 21.16g (0.08mol) FeCl 3 .6H 2 O, dissolve in 250mL deionized water, add excess ammonia water to make the reaction system alkaline to pH 11, stir the reaction at 60℃, the stirring speed is 250 rpm, react for 1 hour to obtain nano ferroferric oxide particles , Washed with ethanol and distilled water to pH 7, and then vacuum dried at 60°C for 12 hours.

[0036] (2) Weigh 3g of nano ferroferric oxide prepared in step (1), disperse it in 250mL of ethanol solution, stir at a constant temperature of 50°C, rotate at 500 rpm, add 20mL of oleic acid, and react for 5 hours to obtain Oleic acid modified nano-ferric oxide.

[0037] (3) Dissolve 2 g of polyvinyl alcohol in 500 mL of deionized water as a dispersant; add 1 g of the oleic acid-modified nano ferroferric oxide prepared in step (2) to the dispersant configured above, at 25°C Disperse ultrasonically for 1 minute, and dissolve polymerized monomer methyl methacrylate (4mL...

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Abstract

The invention discloses a method for preparing thiolated nano ferroferric oxide magnetic polymer composite material. The method comprises the following steps of: dissolving Fe2<+> and Fe3<+> in water, wherein a dropwise adding system is alkaline, heating, stirring to react, washing until the pH value is 7, and drying the reaction product; adding an ethane solution into the reaction product, heating, and adding an oleic acid with stirring; adding a dispersing agent, adding a monomer for polymerization, an epoxy functional monomer and a cross-linking agent, and performing ultrasonic dispersion;adding an initiator, heating, stirring to react, washing until the pH value is 7, performing magnetic separation and drying the reaction product; performing ultrasonic dispersion, adding an epoxy vulcanizing reagent, heating, stirring to react, washing until the pH value is 7, performing magnetic separation and drying the reaction product; and performing ultrasonic dispersion, dropwise adding NaHS solution, stirring to react, washing until the pH value is 7, performing magnetic separation and drying the reaction product to obtain the target product. The invention has the advantages of simple preparation method, low cost, uniform particle size distribution, stable performance and capability of absorbing and removing superstandard heavy metal Hg from water, of the obtained target product, innocent treatment, water resource protection and the like.

Description

Technical field [0001] The invention relates to a preparation method and application technology of a sulfhydryl nano-ferroferric oxide magnetic polymer composite material with a core-shell structure, in particular to a preparation method of a sulfhydryl nano-ferroferric oxide magnetic polymer composite material. The nano magnetic polymer material prepared by the invention can adsorb and remove the excessive heavy metal mercury in water, and achieve the purpose of harmless treatment, water resource protection and the like. Background technique [0002] With the rapid development of modern technology, heavy metal pollution has undoubtedly caused serious harm to the ecological environment. Heavy metal pollution is a major environmental issue highlighted in the "Eleventh Five-Year Plan". The Party Central Committee and the State Council adhere to the concept of environmental protection for the people, and have decided to deploy a series of actions to strengthen the prevention and con...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F220/14C08F220/32C08F2/20C08F8/34B01J20/26B01J20/30C02F1/28C02F1/62C01G49/08
Inventor 沈昊宇潘胜东徐启宏胡美琴
Owner NINGBO INST OF TECH ZHEJIANG UNIV ZHEJIANG
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