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Fiber/CNT(carbon nano tube)/TiO2 three-dimensional recyclable efficient catalytic material, as well as preparation and application thereof

A technology of carbon nanotubes and catalytic materials, which is applied in the field of catalyst materials and their preparation and application, can solve problems such as unfavorable sustainable development, and achieve the effects of recycling and reuse, increasing the contact interface, and accelerating the reaction rate

Inactive Publication Date: 2017-05-31
DONGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The methods currently used to treat wastewater mainly include: physical separation, biodegradation, and chemical decomposition, but these methods have certain limitations and are not conducive to sustainable development.

Method used

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  • Fiber/CNT(carbon nano tube)/TiO2 three-dimensional recyclable efficient catalytic material, as well as preparation and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] (1) Add 150mg CNTs to 30mL of mass percent concentration 30% FeCl 2 Solution, adjust pH=3, then add 30mL H 2 o 2 , sonicate at room temperature for 0.5 h, magnetically stir at room temperature for 6 h, add 500 mL of water, wash with water until neutral, and filter with suction. Vacuum drying at 60°C for 24h to obtain product a;

[0032] Under the condition of blowing nitrogen, disperse 1.5g of product a in 100mL DMF in a dry three-necked flask, cool in an ice-water bath, add 300mg of NaH at 0°C, and continue stirring for 20min. Then gradually raise the temperature to 85°C, add 2mL of 1-perfluorohexyl iodide dropwise, react with ultrasound for 18h, add a small amount of water to quench the reaction, and wash by centrifugation with DMF, ethanol and water successively. The obtained black granular product b was dried in a vacuum oven at 50°C for 96h;

[0033] Disperse 1g of black product b in 50mL of water, add 300mg of NaOH, ultrasonically disperse for 0.5h, disperse 1...

Embodiment 2

[0039] (1) Add 175mg CNTs to 35mL of 30% FeCl 2 In the solution, adjust the pH to 3, then add 35mL H2O2, sonicate at room temperature for 1.5h, magnetically stir at room temperature for 87h, add 500mL of water, wash with water until neutral, and filter with suction. Vacuum drying at 60°C for 24h to obtain product a;

[0040] Under the condition of blowing nitrogen, disperse 2.5g of product a in 150mL DMF in a dry three-necked flask, cool in an ice-water bath, add 411mg of NaH at 0°C, and continue stirring for 30min. Then gradually raise the temperature to 88°C, add 2.5mL of 1-perfluorohexyl iodide dropwise, and react perfluorohexyl iodide with ultrasound for 20 hours. A small amount of water was added to quench the reaction, followed by centrifugation washing with DMF, ethanol and water. The obtained black granular product b was dried in a vacuum oven at 50°C for 96h;

[0041] Disperse 1.5g of product b in 50mL of water, add 438mg of NaOH, ultrasonically disperse for 1h, di...

Embodiment 3

[0047] (1) Add 200mg CNTs to 40mL of 30% FeCl 2 In the solution, adjust pH=3, then add 40mL H2O2, ultrasonicate at room temperature for 2h, magnetically stir at room temperature for 8h, add 500mL of water, wash with water until neutral, and filter with suction. Vacuum drying at 60°C for 24h to obtain product a;

[0048] Under the condition of blowing nitrogen, disperse 3g of product a in 200mL DMF in a dry three-necked flask, cool in an ice-water bath, add 522mg of NaH at 0°C, and continue stirring for 30min. Then gradually raise the temperature to 90°C, add 3mL of 1-perfluorohexyl iodide dropwise, and react perfluorohexyl iodide with ultrasound for 24 hours. A small amount of water was added to quench the reaction, followed by centrifugation washing with DMF, ethanol and water. The obtained black granular product b was dried in a vacuum oven at 50°C for 96h;

[0049] Disperse 2g of product b in 50mL of water, add 438mg of NaOH, ultrasonically disperse for 1h, disperse 2g o...

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Abstract

The invention relates to a fiber / CNT(carbon nano tube) / TiO2 three-dimensional recyclable efficient catalytic material, as well as preparation and application thereof. A three-dimensional continuous structure is constructed on the surface of textile fiber by CNTs, and surfaces of the CNTs are loaded with nano TiO2. Preparation comprises: soaking fiber in a dispersion liquid containing CNT compound TiO2 and polyethylene glycol 2000, lasting reaction for 2-4 h at 60-80 DEG C, drying, washing with water, repeating processes of soaking, drying and washing with water for 3-5 times, and obtaining the material. The fiber / CNT / TiO2 three-dimensional recyclable efficient catalytic material is low in cost, the preparation method is simple, requirements on equipment is are low, and the operability is good; a water treatment agent provided by the invention can remove high-concentration organic pollutants in water, is suitable for advanced treatment of various wastewater, protects the environment, avoids secondary pollution, and has the advantages of being antibacterial, removing odor, absorbing other heavy metal ions, and the like.

Description

technical field [0001] The invention belongs to the field of catalyst materials and their preparation and application, in particular to a fiber / carbon nanotube / TiO 2 Three-dimensional recyclable high-efficiency catalytic materials and their preparation and application. Background technique [0002] Only about 10% of the world's water is directly used by humans. The largest share, 70%, is used in agriculture, and the remaining 20% ​​is used in industry. China's sewage is about 20% of the world's, but it only gets 5% of the world's fresh water. Therefore, solving the pollution problem is on the agenda. In the process of textile printing and dyeing, leather, and paper-making industries, a large number of additives that pollute the environment and are harmful to the human body are used. Most of these additives are discharged in the form of liquid and pollute the environment. They have poor biodegradability, high toxicity, and high free formaldehyde content. The content of he...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J31/38C02F1/30C02F1/72
CPCY02W10/37B01J31/38C02F1/30C02F1/725C02F2305/10
Inventor 刘保江
Owner DONGHUA UNIV
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