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Preparation method and application of carbon nano tube compound titanium dioxide porous carbon material

A carbon nanotube composite, porous carbon material technology, applied in chemical instruments and methods, separation methods, water/sludge/sewage treatment, etc., can solve the problems of low desalination efficiency and poor wettability, and achieve high desalination efficiency. , good wettability and high adsorption rate

Active Publication Date: 2019-01-15
NANJING UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, capacitive deionization technology generally uses activated carbon, mesoporous carbon, carbon nanotubes, graphene, etc. as electrode materials. The main problems of this material are poor wettability to water and low desalination efficiency.

Method used

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  • Preparation method and application of carbon nano tube compound titanium dioxide porous carbon material
  • Preparation method and application of carbon nano tube compound titanium dioxide porous carbon material
  • Preparation method and application of carbon nano tube compound titanium dioxide porous carbon material

Examples

Experimental program
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Effect test

Embodiment 1

[0029] A1. Measure 30ml of N,N-dimethylformamide (DMF) and 3.33ml of methanol (MeOH) into the centrifuge tube in turn, then add 1.67g of terephthalic acid, after ultrasonic dissolution is complete, then add 0.1g of carbon nano After ultrasonication at room temperature for 1 hour, add 0.87ml tetrabutyl titanate, add a stirrer and stir for 30 minutes at a speed of 600r / min, transfer the solution to the lining of a 50ml reactor, put it into the iron box of the reactor, and then put React in an oven at 150°C for 24h. After cooling to room temperature, wash with DMF and methanol three times respectively, and put it in an oven at 110°C overnight to obtain the metal-organic framework material CNT-Ti-MOF composited with carbon nanotubes, whose morphology is as follows: figure 1 and 2 shown.

[0030] A2. Put the above-mentioned synthesized CNT-Ti-MOF material into a clean porcelain boat, heat up to 600°C at a rate of 5°C / min in a tube furnace under a high-purity nitrogen gas atmosphe...

Embodiment 2

[0037] B1. Measure 30ml of N,N-dimethylformamide (DMF) and 3.33ml of methanol (MeOH) into the centrifuge tube in turn, then add 1.81g of 2-aminoterephthalic acid, after ultrasonic dissolution is complete, then add 0.8 g carbon nanotubes, after ultrasonication at room temperature for 1 hour, add 0.87ml of tetrabutyl titanate, add a stirrer and stir at a speed of 800r / min for 1 hour, transfer the solution to the lining of a 50ml reaction kettle, put it into the iron box of the reaction kettle and put Into a 150 ° C oven for 24 hours. After cooling to room temperature, wash twice with DMF and methanol respectively, and place in an oven at 80°C overnight to obtain the carbon nanotube-composite metal organic framework material CNT-Ti-MOF.

[0038] B2. Put the above-mentioned synthesized CNT-Ti-MOF material into a clean porcelain boat, heat up to 600°C at a rate of 3°C / min in a tube furnace under a high-purity nitrogen gas atmosphere, keep it for 2 hours and then cool it down to ro...

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Abstract

The invention discloses a preparation method of a carbon nano tube compound titanium dioxide porous carbon material. The preparation method comprises the following steps: adding N,N-dimethyl formamideand methyl alcohol into a centrifugal tube and then adding terephthalic acid or other related ligands; adding a carbon nano tube after complete dissolution is achieved, then adding a titanic acid precursor, performing heating reaction on the solution, cooling to the room temperature after reaction finishes, washing the mixture for many times through a first organic solvent and drying the mixtureunder 60 to 120 DEG C to obtain a CNT-Ti-MOF material; putting the prepared CNT-Ti-MOF into a porcelain boat, carbonizing the prepared CNT-Ti-MOF in a tubular furnace, keeping warmpreserving the temperature for 2 to 5 h and cooling to the room temperature to obtain a carbon nano tube compound titanium dioxide porous carbon material, wherein a carbonizing temperature is 400 to 1,000 DEG C, the heating rate is 2 to 10 DEG C / min, and carbonizing gas is N2 or Ar. Compared with a traditional carbon-based electrode material, the material prepared by the method has better wettability to water and higher desalting efficiency.

Description

technical field [0001] The invention relates to the technical field of capacitive deionization materials, in particular to a preparation method and application of a carbon nanotube composite titanium oxide porous carbon material. Background technique [0002] Fresh water resources are an indispensable part of human survival and development. Human life activities, social activities, and industrial and agricultural development cannot do without fresh water. Although 70% of the earth's surface is covered by seawater, only 0.27% of the fresh water resources can be utilized by humans. And due to the pollution of natural fresh water resources caused by industry, agriculture and urban residents' daily life, the crisis of fresh water and drinking water resources has become more and more serious. Therefore, how to convert seawater into fresh water that can be used by humans and how to purify drinking water are problems that need to be solved urgently. Traditional desalination and p...

Claims

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Application Information

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IPC IPC(8): C02F1/469C02F103/08
CPCC02F1/4691C02F2103/08
Inventor 李盛霍峰蔚张如男郭少华袁博花迪邵梦吴健生郑冰张伟娜
Owner NANJING UNIV OF TECH