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A method for modifying magnetic nano-ferric oxide based on wool fiber

A technology of ferroferric oxide and wool fiber, applied in chemical instruments and methods, alkali metal oxides/hydroxides, inorganic chemistry, etc., to achieve the effects of simple preparation method, anti-oxidation, and small particle size

Active Publication Date: 2018-02-27
XI'AN POLYTECHNIC UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

At present, there is no report on the related technology of using waste wool fiber to prepare magnetic nano-Fe3O4

Method used

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  • A method for modifying magnetic nano-ferric oxide based on wool fiber
  • A method for modifying magnetic nano-ferric oxide based on wool fiber
  • A method for modifying magnetic nano-ferric oxide based on wool fiber

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0045] Fully dissolve 0.2g of sodium carbonate in 100mL of deionized water, weigh 2g of waste wool fiber according to the bath ratio of 1:50 and soak it in an aqueous solution of sodium carbonate at 40°C for 10min, then wash it with deionized water, and then Soak the wool fiber in an anhydrous ethanol solution at 40°C for 10 minutes, wash it once with deionized water, and dry it at 50°C. Fully dissolve 1g of sodium hydroxide in 50mL of deionized water, weigh 0.25g of washed wool fiber according to the bath ratio of 1:200, add it to the sodium hydroxide solution at 70°C, and speed stirring. After the wool fiber was completely dissolved, the sodium hydroxide solution was sealed with a plastic film, then kept at 70°C for 6 hours, and then ultrasonically oscillated for 20 minutes to obtain a wool fiber degradation solution rich in amino acids. Prepare a ferrous chloride solution with a volume of 1L and a concentration of 5% with deionized water, weigh ferric chloride according to...

Embodiment 2

[0048] Fully dissolve 1g of sodium carbonate in 100mL of deionized water, weigh 5g of waste wool fiber according to the bath ratio of 1:20 and soak it in an aqueous solution of sodium carbonate at 50°C for 30min, then wash it with deionized water, and then Wool fibers were soaked in absolute ethanol solution at 60°C for 30 minutes, washed with deionized water three times, and dried at 50°C. Fully dissolve 6g of sodium hydroxide in 100mL of deionized water, weigh 1g of washed wool fiber according to the bath ratio of 1:100, add it to the sodium hydroxide solution at 90°C, and turn it at a speed of 200 rpm Stir. After the wool fiber was completely dissolved, the sodium hydroxide solution was sealed with a plastic film, then kept at 90°C for 12 hours, and then ultrasonically oscillated for 40 minutes to obtain a wool fiber degradation solution rich in amino acids. Prepare a ferrous chloride solution with a volume of 200mL and a concentration of 10% with deionized water, weigh fe...

Embodiment 3

[0051] Fully dissolve 0.8g of sodium carbonate in 100mL of deionized water, weigh 2.5g of waste wool fiber according to the bath ratio of 1:40 and soak it in an aqueous solution of sodium carbonate at 45°C for 20min, then wash it with deionized water, Then soak the wool fiber in an anhydrous ethanol solution at 50°C for 20 minutes, wash it twice with deionized water, and dry it at 50°C. Fully dissolve 4g of sodium hydroxide in 100mL of deionized water, weigh 0.67g of washed wool fiber according to the bath ratio of 1:150, add it to the sodium hydroxide solution at 80°C, and speed stirring. After the wool fiber was completely dissolved, the sodium hydroxide solution was sealed with a plastic film, then kept at 80°C for 8 hours, and then ultrasonically oscillated for 30 minutes to obtain a wool fiber degradation solution rich in amino acids. Prepare a ferrous chloride solution with a volume of 1L and a concentration of 7% with deionized water, weigh ferric chloride according to...

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Abstract

The invention discloses a method for carrying out magnetic nano ferroferric oxide modification based on wool fibers. Organic degradation liquid containing rich amino acid is prepared and then added into a ferroferric oxide precursor solution, nano ferroferric oxide crystallization and settling are carried out, and finally modified nano ferroferric oxide is obtained through filtering, washing and drying. By adding a certain amount of wool fiber degradation liquid, hematite ferroferric oxide nanopaticles for wrapping organic ingredients can be prepared, the clustering phenomenon of generated magnetic nano ferroferric oxide can be avoided, the particle size is small, the ferroferric oxide is uniformly distributed, damage to the crystal structure of ferroferric oxide can be avoided, an organic film wrapped by magnetic nanopaticles on the surface can achieve certain thickness, and combination is firm; meanwhile, ferroferric oxide can be prevented from being oxidized, the adsorption performance on heavy metal ions is good, and ferroferric oxide can be repeatedly used. The preparing method is simple, efficient and free of pollution to the environment.

Description

technical field [0001] The invention belongs to the technical field of textile engineering, and in particular relates to a method for modifying magnetic nanometer iron tetroxide based on wool fiber. Background technique [0002] As we all know, heavy metal ions not only affect the effective use of water resources, but also cause great harm to public health, which has become a difficult problem in the current water pollution. Traditional water treatment methods cannot decompose and destroy heavy metal ions in wastewater such as chromium, cadmium, copper, mercury, nickel and zinc, but can only transfer their existing positions or change their physical and chemical states. Ferroferric oxide itself has no toxic and side effects, and has good biocompatibility. Nanoscale ferroferric oxide has high specific surface area and surface activity, which will increase the chance of contact with heavy metal ions to a certain extent, and also has a certain Magnetic properties, conducive to...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J20/24B01J20/30B01J20/28C02F1/28C02F1/62
CPCB01J20/06B01J20/24B01J20/28009B01J2220/46B01J2220/4806B01J2220/4856C02F1/281C02F1/286C02F1/288C02F2101/20C02F2101/22
Inventor 张辉徐军孙润军
Owner XI'AN POLYTECHNIC UNIVERSITY
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