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A carbon nanotube composite znin 2 s 4 Preparation method of green advanced water treatment agent

A carbon nanotube composite and water treatment agent technology, which is applied in the direction of adsorption water/sewage treatment, light water/sewage treatment, oxidized water/sewage treatment, etc., can solve the problems of unfavorable and sustainable development, and achieve good water treatment effect, The preparation method is simple and the effect of low cost

Inactive Publication Date: 2016-08-17
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 mixture was subjected to ultrasonic reaction at room temperature for 30min, washed with water to neutrality, and vacuum-dried at room temperature for 48h to obtain 5g of carboxylated carbon nanotubes; then the above-mentioned 5g of carboxylated carbon nanotubes were dispersed in excess diethylenetriamine, and 100 mg of 2-( 7-Azobenzotriazole)-N,N,N',N'-tetramethylurea hexafluorophosphate, reacted at 40°C for 5h, washed with ethanol, and dried in vacuum at room temperature for 48h to obtain 4g of carbon amide nanoparticles Finally, 4g of aminated carbon nanotubes were ultrasonically dispersed in 1L of a mixture of water and acetone with a volume ratio of 3:1, the pH was adjusted to 5 with sodium carbonate solution, and 4g of 2,4,6- Trifluoro-5-chloropyrimidine was adjusted to pH 6 with sodium carbonate solution, ultrasonically reacted at 20°C for 24h, washed with ethanol, washed ...

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 4The mixed solution was subjected to ultrasonic reaction at room temperature for 45 min, washed with water until neutral, and vacuum-dried at room temperature for 54 h to obtain 6.5 g of carboxylated carbon nanotubes; then the above 5 g of carboxylated carbon nanotubes were dispersed in excess diethylenetriamine, and 300 mg of 2- (7-Azobenzotriazole)-N,N,N',N'-tetramethylurea hexafluorophosphate, reacted at 45°C 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 mixture of water and acetone with a volume ratio of 4:1, the pH was adjusted to 5.5 with sodium carbonate solution, and 5g of 2,4 was added dropwise to an ice-water bath. ,6-trifluoro-5-chloropyrimidine, adjust the pH value with sodium carbonate solution to 6.2, ultrasonica...

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 subjected to ultrasonic reaction at room temperature for 60min, washed with water to neutrality, and vacuum-dried at room temperature for 60h to obtain 8g of carboxylated carbon nanotubes; then the above-mentioned 8g of carboxylated carbon nanotubes were dispersed in excess diethylenetriamine, and 600mg of 2-( 7-Azobenzotriazole)-N,N,N',N'-tetramethylurea hexafluorophosphate, react at 50°C for 5h, wash with ethanol, and dry in vacuum at room temperature for 48h to obtain 4.5g of carbon amide Nanotubes; finally, 4.5g of carbon nanotubes were ultrasonically dispersed in 1L of a mixture of water and acetone with a volume ratio of 5:1, the pH was adjusted to 6 with sodium carbonate solution, and 6g of 2,4 was added dropwise to an ice-water bath. 6-Trifluoro-5-chloropyrimidine, adjusted to pH 6.5 with sodium carbonate solution, ultrasonically reacted at 30°C for 48...

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Abstract

The invention relates to a preparation method for an environment-friendly advanced water treatment agent by combining a carbon nano tube and ZnIn2S4. The preparation method includes the steps that firstly, carboxylation, aminated modification and 2, 4, 6-trifluoro-5-chloropyrimidine modification are sequentially conducted on the carbon nano tube to obtain a reaction type carbon nano tube; secondly, the nano ZnIn2S4, a stabilizer, a template agent and the reaction type carbon nano tube are added into phosphate buffered saline to be stirred for 30 min-60 min to form turbid liquid; thirdly, the turbid liquid is filtered and dried to obtain the environment-friendly advanced water treatment agent. The preparation method is low in cost, simple, low in equipment requirement and good in operability. The water treatment agent can be used for removing high-concentration organic pollutants in water, is suitable for advanced treatment of various kinds of wastewater, environmentally friendly and free of secondary pollution and has the advantages of being antibacterial, deodorant, capable of adsorbing other heavy metal ions and the like.

Description

technical field [0001] The invention belongs to the field of water treatment agents, in particular to a carbon nanotube composite ZnIn 2 S 4 The 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 used in agriculture, and the remaining 20% ​​is used in industry. China emits about 20% of the world's sewage, while it gets only 5% of the world's fresh water. Therefore, solving the pollution problem is on the agenda. In the processing process of textile printing and dyeing, leather and paper industry, a large number of auxiliaries that pollute the environment and are harmful to human body are used. Most of these auxiliaries 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 heavy metal ions exceeds the standard. Among them, printing and dy...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J27/04C02F1/28C02F1/30C02F1/72C02F103/30
Inventor 刘保江
Owner DONGHUA UNIV
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