Titanium dioxide-carbon nanotube flexible composite film as well as preparation method and application thereof

A technology of titanium dioxide and carbon nanotubes, applied in chemical instruments and methods, alkali metal compounds, alkali metal oxides/hydroxides, etc., can solve problems such as weak hydrophilicity, achieve easy recycling, increase contact area, improve efficiency effect

Active Publication Date: 2021-08-24
TIANJIN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The purpose of the present invention is to provide a flexible composite film of titanium dioxide-carbon nanotubes for carbon nanotubes (CNTs) existing in the prior art as the problem of weak hydrophilicity of the adsorption material, and the introduction of titanium dioxide can carry out carbon nanotubes Improved hydrophilicity

Method used

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  • Titanium dioxide-carbon nanotube flexible composite film as well as preparation method and application thereof
  • Titanium dioxide-carbon nanotube flexible composite film as well as preparation method and application thereof
  • Titanium dioxide-carbon nanotube flexible composite film as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] Weigh 1.008g deionized water, 0.072g GR high-purity absolute ethanol, 0.0036g titanium tetrachloride, and 0.02g pure carbon tube film. Among them, titanium tetrachloride is used as the titanium source of this reaction, the carbon tube film is used as the carbon source, and absolute ethanol is used for the alcoholysis.

[0041] A method for preparing titanium dioxide-carbon nanotube flexible composite film, comprising the following steps:

[0042] (1) Add GR high-purity absolute ethanol to a dry beaker, add carbon tube film, and start magnetic stirring; add titanium tetrachloride solution drop by drop, and continue stirring for 10 minutes after the drop;

[0043] (2) After the solution is transparent, first use clean tweezers to transfer the carbon tube film to a beaker filled with deionized water, turn on magnetic stirring, and transfer the solution to a beaker filled with deionized water, the transfer method is drop by drop Add, dropwise time is 30min; After the solut...

Embodiment 2

[0048] Weigh 1.008g deionized water, 0.072g GR high-purity absolute ethanol, 0.0036g titanium tetrachloride, and 0.05g pure carbon tube film. Among them, titanium tetrachloride is used as the titanium source of this reaction, the carbon tube film is used as the carbon source, and absolute ethanol is used for the alcoholysis.

[0049] A method for preparing titanium dioxide-carbon nanotube flexible composite film, comprising the following steps:

[0050] (1) Add GR high-purity absolute ethanol to a dry beaker, add carbon tube film, and start magnetic stirring; add titanium tetrachloride solution drop by drop, and continue stirring for 15 minutes after the drop;

[0051] (2) After the solution is transparent, first use clean tweezers to transfer the carbon tube film to a beaker filled with deionized water, turn on magnetic stirring, and transfer the solution to a beaker filled with deionized water, the transfer method is drop by drop Add, dropwise time is 35min; After the solut...

Embodiment 3

[0055] Weigh 1.008g deionized water, 0.072g GR high-purity absolute ethanol, 0.0036g titanium tetrachloride, and 0.1g pure carbon tube film. Among them, titanium tetrachloride is used as the titanium source of this reaction, the carbon tube film is used as the carbon source, and absolute ethanol is used for the alcoholysis.

[0056] A method for preparing titanium dioxide-carbon nanotube flexible composite film, comprising the following steps:

[0057] (1) Add GR high-purity absolute ethanol to a dry beaker, add carbon tube film, and start magnetic stirring; add titanium tetrachloride solution drop by drop, and continue stirring for 15 minutes after the drop;

[0058] (2) After the solution is transparent, first use clean tweezers to transfer the carbon tube film to a beaker filled with deionized water, turn on magnetic stirring, and transfer the solution to a beaker filled with deionized water, the transfer method is drop by drop Add, dropwise time is 40min; After the soluti...

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Abstract

The invention discloses a titanium dioxide-carbon nanotube flexible composite film as well as a preparation method and application thereof. The preparation method comprises the following steps: step 1, adding a pure carbon tube film into absolute ethyl alcohol, and dropwise adding titanium tetrachloride under a stirring condition, after dropwise adding, continuously stirring the solution until white smoke above the solution is dispersed, so as to obtain a solution soaked with a thin film; step 2, taking out the thin film obtained in the step 1, transferring the thin film into deionized water, dropwise adding the solution obtained in the step 1 under a stirring condition, continuously stirring the solution after the dropwise adding is finished, then putting the thin film into a drying oven after the stirring is finished, and carrying out a hydrothermal reaction at the temperature of 50 DEG C; and step 3, taking out the film obtained in the step 2 and washing and drying the film to obtain the titanium dioxide-carbon nanotube flexible composite film. The titanium dioxide-carbon nanotube flexible composite film has good adsorption performance and can be used for degrading organic matters in sewage.

Description

technical field [0001] The invention relates to the technical field of sewage treatment, in particular to a titanium dioxide-carbon nanotube flexible composite film and its preparation method and application. Background technique [0002] With the development of my country's economy, the discharge of sewage from textile, printing and dyeing industries has increased significantly. In addition to dyeing auxiliaries and heavy metal salts, sewage also contains a large number of organic pollutants that are difficult to biodegrade, which will seriously pollute the land, fresh water and other environments. resource. Due to the high production cost and low efficiency of traditional wastewater treatment technology, the development of new materials that can be recycled and the improvement of wastewater treatment technology are future research directions. Among various degradation methods, the adsorption method has a high removal efficiency for organic matter with a high concentration ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J20/20B01J20/28C02F1/28B01J20/30C02F101/36C02F101/38
CPCB01J20/20B01J20/28033C02F1/283C02F2101/36C02F2101/38C02F2101/40C02F2303/16Y02W10/37
Inventor 侯峰郭文磊
Owner TIANJIN UNIV
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