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A kind of carbon nanotube composite srfeo 3 Preparation method of green deep water treatment agent

A carbon nanotube composite, water treatment agent technology, applied in water/sewage treatment, adsorbed water/sewage treatment, light water/sewage treatment, etc., can solve problems such as unfavorable sustainable development, achieve good water treatment effect, adsorption Strong ability and good operability

Inactive Publication Date: 2016-08-24
DONGHUA UNIV +1
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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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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] (1) Put 10g of carbon nanotubes in 4L of H with a volume ratio of 1:1 2 SO 4 And HNO 4 The mixed solution was ultrasonically reacted at room temperature for 30 minutes, washed with water until it was neutral, and dried in vacuum at room temperature for 48 hours to obtain 5 g of carboxylated carbon nanotubes; then the above 5 g of carboxylated carbon nanotubes were dispersed in excess diethylene triamine, and 100 mg of 2-( 7-Azobenzotriazole)-N,N,N',N'-tetramethylurea hexafluorophosphate, reacted at 40℃ for 5h, washed with ethanol, and dried in vacuum at room temperature for 48h to obtain 4g of amide carbon nano Tube; Finally, 4g of aminated carbon nanotubes are ultrasonically dispersed in 1L of a mixture of water and acetone with a volume ratio of 3:1, and the pH value is adjusted to 5 with sodium carbonate solution, and 4g 2,4,6- Trifluoro-5-chloropyrimidine, adjust pH to 6 with sodium carbonate solution, ultrasonic reaction at 20℃ for 24h, ethanol washing, water washing...

Embodiment 2

[0031] (1) Put 10g of carbon nanotubes in 4L of H with a volume ratio of 3:1 2 SO 4 And HNO 4 The mixed solution was ultrasonically reacted at room temperature for 45 minutes, washed with water until it was neutral, and dried in vacuum at room temperature for 54 hours to obtain 6.5 g of carboxylated carbon nanotubes; then, the above 5 g of carboxylated carbon nanotubes were dispersed in excess diethylene triamine, and 300 mg 2- (7-Azobenzotriazole)-N,N,N',N'-tetramethylurea hexafluorophosphate, reacted at 45℃ for 5h, washed with ethanol, and dried in vacuum at room temperature for 48h to obtain 4.2g of amination Carbon nanotubes; Finally, 4.2g of aminated carbon nanotubes were ultrasonically dispersed in 1L of a 4:1 volume ratio of water and acetone mixture, the pH was adjusted to 5.5 with sodium carbonate solution, and 5g 2,4 was added dropwise to the ice water bath ,6-Trifluoro-5-chloropyrimidine, adjusted to pH 6.2 with sodium carbonate solution, reacted with ultrasound at 25...

Embodiment 3

[0035] (1) Put 10g of carbon nanotubes in 4L of H with a volume ratio of 5:1 2 SO 4 And HNO 4 The mixed solution was ultrasonically reacted at room temperature for 60 minutes, washed with water until it was neutral, and dried under vacuum at room temperature for 60 hours to obtain 8 g of carboxylated carbon nanotubes; then, the above 8 g of carboxylated carbon nanotubes were dispersed into excess diethylene triamine, and 600 mg of 2-( 7-Azobenzotriazole)-N,N,N',N'-tetramethylurea hexafluorophosphate, reacted at 50℃ for 5h, washed with ethanol, and dried in vacuum at room temperature for 48h to obtain 4.5g of amide carbon Nanotubes; Finally, 4.5g of aminated carbon nanotubes were ultrasonically dispersed in 1L of a mixture of water and acetone with a volume ratio of 5:1, adjusted to pH 6 with sodium carbonate solution, and 6g 2,4 was added dropwise to an ice water bath. 6-Trifluoro-5-chloropyrimidine, adjusted to pH 6.5 with sodium carbonate solution, ultrasonic reaction at 30°C ...

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Abstract

The invention relates to a method for preparing a carbon nano tube composite SrFeO3 green deep water treatment agent. The method comprises the following steps: (1) sequentially performing carboxylated and aminated modification and 2,4,6-trifluoro-5-chloropyrimidine modification on carbon nano tubes, thereby obtaining reactive carbon nano tubes; (2) adding nanometer SrFeO3, a stabilizer, a template agent and the reactive carbon nano tubes into a phosphate buffer solution, stirring for 30-60 minutes, and forming a turbid liquid; and (3) filtering and drying, thereby obtaining the product. The method disclosed by the invention is low in cost, simple in preparation method, low in equipment requirements and high in operability. Moreover, the water treatment agent disclosed by the invention can remove high-concentration organic pollutants in water, is suitable for deep treatment of various kinds of wastewater, is environment-friendly, does not cause secondary pollution and has the advantages of bacteria resistance, deodorization, capacity of adsorbing other heavy metal ions and the like.

Description

Technical field [0001] The invention belongs to the field of water treatment agents, and particularly relates to a carbon nanotube composite SrFeO 3 Preparation method of green deep water treatment agent. Background technique [0002] Only about 10% of the world's water is directly used by humans. The largest share, 70% is for agriculture, and the remaining 20% ​​is for industry. China's emissions are about 20% of the world's pollution, and it only gets 5% of the world's fresh water. Therefore, solving the pollution problem has been on the agenda. In the processing of textile printing and dyeing, leather, and papermaking industries, a large number of environmentally polluting and harmful additives are used. Most of these additives are discharged in liquid form to pollute the environment. They have poor biodegradability, high toxicity, and high free formaldehyde content. The content of heavy metal ions exceeds the standard. Among them, printing and dyeing wet finishing has und...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F1/28C02F1/30C02F1/58C02F1/62C02F1/00
CPCC02F1/00C02F1/28C02F1/283C02F1/30C02F1/50C02F1/725C02F2101/20C02F2101/30
Inventor 刘保江高品
Owner DONGHUA UNIV
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