Bombax ceiba fiber-base adsorption catalysis material

A technology of kapok fiber, adsorption and catalysis, applied in the direction of adsorption of water/sewage treatment, physical/chemical process catalyst, organic compound/hydride/coordination complex catalyst, etc. Simple, mild reaction conditions, and easy industrialization

Inactive Publication Date: 2015-01-14
LANZHOU INST OF CHEM PHYSICS CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the water repellency and lipophilicity of the kapok fiber itself makes it difficult to directly use it to support metal nanoparticles.

Method used

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  • Bombax ceiba fiber-base adsorption catalysis material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] In 500 mL of 1 mol / L hydrochloric acid solution, add 10 grams of aniline and 20 grams of kapok fiber, and stir for 2 hours to obtain a reaction solution; add 20 grams of initiator silver perchlorate to the above reaction solution, and stir at normal temperature and pressure to react After 12 hours, separate the obtained solid; wash the solid with water, adjust the pH to 6-7, wash with water and ethanol, and dry at 50°C to obtain a kapok fiber-based adsorption catalytic material. The product can achieve complete adsorption and catalysis of 10 mg / L methylene blue within 30 minutes.

Embodiment 2

[0021] In 500 mL of 2 mol / L nitric acid solution, add 20 grams of aniline and 20 grams of kapok fiber, and stir for 3 hours to obtain a reaction solution; add 10 grams of initiator silver nitrate and 20 grams of hydrogen peroxide into the above reaction solution, and heat at normal temperature and pressure Stirring and reacting for 24 hours, separating the obtained solid; washing the solid with water, adjusting the pH to 6-7, washing with water and ethanol, and drying at 60°C to obtain a kapok fiber-based adsorption catalytic material. The product can achieve complete adsorption and catalysis of 10 mg / L methylene blue within 30 minutes.

Embodiment 3

[0023] In 500 mL of 3 mol / L acetic acid solution, add 15 grams of aniline and 30 grams of kapok fiber, and stir for 1 hour to obtain a reaction solution; 15 grams of initiator silver perchlorate and 25 grams of ammonium persulfate are added to the above reaction solution , stirred and reacted at normal temperature and pressure for 36 hours, and the obtained solid was separated; after the solid was washed with water, the pH was adjusted to 6~7, and after being washed with water and ethanol, it was dried at room temperature at 20°C to obtain a kapok fiber-based adsorption catalyst Material. The product can achieve complete adsorption and catalysis of 10 mg / L methylene blue within 30 minutes.

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Abstract

The invention discloses a bombax ceiba fiber-base adsorption catalysis material. Bombax ceiba fiber is taken as a carrier, polyaniline is taken as a connection layer, under the conditions of room temperature and air atmosphere, the bombax ceiba fiber carrying a noble metal nanoparticle is prepared through a one-step method. The material possesses both adsorption function and catalysis function, the preparation is simple in technology, mild in conditions and easy for industrialized production. The obtained product is capable of effectively adsorbing or catalyzing dye molecules in water, and is applied to corresponding wastewater processing.

Description

technical field [0001] The invention relates to a kapok fiber-based adsorption catalytic material. Background technique [0002] Natural plant fiber is a renewable biomass resource with abundant reserves in nature. According to its source, there are bast fiber, leaf fiber, seed fiber and other fibers. Natural plant fiber is generally composed of cellulose, hemicellulose, lignin, etc., and is a kind of natural polymer material. [0003] Kapok fiber is the fruit fiber of the kapok tree. It has a unique thin-walled and large hollow structure. The hollowness is as high as 80~90%. of blended raw materials. The wax on the surface of kapok fiber endows it with excellent water repellency and lipophilicity, so kapok fiber has attracted the attention of many researchers as an oil-absorbing material. After the kapok fiber is treated with alkali, it can be used as a composite reinforcement material. After γ-ray treatment, kapok fibers are endowed with good flame-retardant properties...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J20/24B01J20/30C02F1/28C02F1/70C02F1/58B01J31/06
CPCB01J20/261B01J31/06B01J35/06C02F1/288C02F1/705C02F2101/308
Inventor 郑易安王爱勤
Owner LANZHOU INST OF CHEM PHYSICS CHINESE ACAD OF SCI
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