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A preparation method of phenolic amine-coated iron oxide material for removing dye ions

A technology of coating iron and oxides, which is applied to chemical instruments and methods, water pollutants, and other chemical processes, can solve problems that hinder drinking water quality and reduce infiltration, and achieve sustainable development of the environment, low cost, and The effect of simple preparation process

Active Publication Date: 2021-10-26
山东济清科技服务有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For example, the presence of dyes hinders the drinking quality of water and reduces the penetration of sunlight and oxygen in aquatic ecosystems, affecting the normal flow of water systems

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] Weigh 0.12g of ferric chloride and add it to 150mL of ultrapure water, then add 0.088g of sodium hydroxide, redisperse the obtained precipitate into 200mL of ultrapure water, then add 0.126g of tannic acid and stir for 24h; Then add 0.107g of hexamethylenediamine and stir for 48h, finally wash with ultrapure water 3 times, freeze-dry.

[0021] The adsorption material of the phenolic amine-coated iron oxide material prepared by the above method has an adsorption capacity of 305 mg / g of Congo red.

Embodiment 2

[0023] Weigh 0.12g of ferric chloride and add it to 150mL of ultrapure water, then add 0.088g of sodium hydroxide, redisperse the obtained precipitate into 200mL of ultrapure water, then add 0.25g of tannic acid and stir for 24h; Then add 0.214g of hexamethylenediamine and stir for 48h, finally wash with ultrapure water 3 times, freeze-dry. The adsorption material of the phenolic amine-coated iron oxide material prepared by the above method has an adsorption capacity of 325 mg / g for Congo red.

Embodiment 3

[0025] Weigh 0.12g of ferric chloride and add it to 150mL of ultrapure water, then add 0.088g of sodium hydroxide, redisperse the obtained precipitate into 200mL of ultrapure water, then add 0.378g of tannic acid and stir for 24h; Then add 0.32g of hexamethylenediamine and stir for 48h, finally wash with ultrapure water 3 times, freeze-dry. The adsorption material of the phenolic amine-coated iron oxide material prepared by the above method has an adsorption capacity of 484 mg / g for Congo red.

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Abstract

The invention discloses a preparation method of a phenolic amine-coated iron oxide material for removing dye ions. Said materials include tannic acid (TA), hexamethylenediamine (HA), iron oxides. The preparation steps of the material are as follows: first dissolve ferric chloride in water and add a certain amount of sodium hydroxide to make it precipitate, then separate the precipitate and redisperse it in ultrapure water, then add a certain amount of tannic acid, Finally, hexamethylenediamine is added, and the material of iron oxide coated with phenolic amine is prepared after centrifugal drying. The adsorption material prepared by the invention has good stability, simple preparation process, strong operability, low cost, can be recycled without secondary pollution, and is widely used in the field of removing dye ions from sewage.

Description

technical field [0001] The invention relates to the preparation of an adsorbent, in particular to a preparation method of a phenolic amine-coated iron oxide material for removing dye ions. Background technique [0002] With the development of science and technology and the progress of industry, the chemical industry continues to develop, and more and more chemical products have entered our lives, which has brought us great convenience. However, when people are immersed in the convenience brought by chemical products, environmental problems have become increasingly prominent, and human beings are facing great negative effects brought about by industrialization, such as ecological pollution, energy shortage, resource depletion, especially the waste of water resources and pollution. Among them, one of the causes of water pollution is dye ion pollution. Although water-soluble dyes have low optical stability and oxidation properties, they are still difficult to degrade in the en...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J20/22B01J20/30C02F1/28C02F101/38
CPCB01J20/06B01J20/22B01J20/30C02F1/285C02F2101/308
Inventor 刘钦泽高嵩刘鹏张文丽张艳胡涛
Owner 山东济清科技服务有限公司