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Method for evenly dispersing titanic oxide in organic phase

A technology of uniform dispersion of titanium dioxide, applied in chemical instruments and methods, mixing methods, chemical/physical processes, etc., can solve problems such as harsh conditions and cumbersome processes, achieve mild reaction conditions, expand the application range, and improve the ability to adsorb organic matter and light The effect of catalytic activity

Inactive Publication Date: 2009-02-25
南通国邦科技发展有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The present invention aims to solve the shortcomings of cumbersome processes and harsh conditions in the current method for uniformly dispersing titanium dioxide in the organic phase, and provides a method for uniformly dispersing titanium dioxide in the organic phase

Method used

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  • Method for evenly dispersing titanic oxide in organic phase
  • Method for evenly dispersing titanic oxide in organic phase
  • Method for evenly dispersing titanic oxide in organic phase

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specific Embodiment approach 1

[0012] Specific Embodiment 1: In this embodiment, the method for uniformly dispersing titanium dioxide in the organic phase is carried out according to the following steps: 1. Disperse titanium dioxide nanoparticles with distilled water. Every 1 g of titanium dioxide nanoparticles needs to be added with 20-40 mL of distilled water. After stirring for 45 minutes at a speed of ~60r / min, ultrasonic oscillation was carried out for 15 minutes to obtain a suspension of titanium dioxide nanoparticles; 2. The pH value of the suspension of titanium dioxide nanoparticles obtained in step 1 was adjusted to 1 with nitric acid with a volume fraction of 10% ~4, then add hexadecyltrimethylammonium bromide whose mass is 0.5%~15% of the mass of titanium dioxide nanoparticles, and then stir for 2 hours at a speed of 40~60r / min to obtain a mixed solution, then add the mixed solution The organic phase with the same volume was then stirred for 2 hours, and separated after standing for 12 hours; nam...

specific Embodiment approach 2

[0013] Embodiment 2: The difference between this embodiment and Embodiment 1 is that in step 1, 25-35 mL of distilled water needs to be added for every 1 g of titanium dioxide nanoparticles. Other steps and parameters are the same as those in Embodiment 1.

specific Embodiment approach 3

[0014] Embodiment 3: The difference between this embodiment and Embodiment 1 is that in step 1, 30 mL of distilled water needs to be added for every 1 g of titanium dioxide nanoparticles. Other steps and parameters are the same as those in Embodiment 1.

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Abstract

The present invention relates to a method for dispersing titanium dioxide in organic phase uniformly. The present invention solves the disadvantages of the current method of complex process and rigorous condition. The method for dispersing the titanium dioxide in the organic phase uniformly is processed according to the steps as follows: firstly, titanium dioxide nanometer particle suspension is obtained; secondly, pH value is adjusted, activator is added for separating liquid, and titanium dioxide nanometer particles which are uniformly dispersed in the organic phase are obtained. The other method is processed according to the steps as follows: firstly, the titanium dioxide nanometer particle suspension is obtained; secondly, the pH value is adjusted, the activator is added for separating the liquid, and the titanium dioxide nanometer particles which are uniformly dispersed in the organic phase are obtained. The method for dispersing the titanium dioxide in the organic phase uniformly has the advantages of simple process and wide applicable condition.

Description

technical field [0001] The present invention relates to a method for dispersing titanium dioxide in an organic phase. Background technique [0002] Nano-titanium dioxide is an important inorganic semiconductor functional material, which has unique catalytic, electrical, optical and photochemical properties. However, nano-TiO 2 Its strong polarity and high surface energy make it difficult to disperse in organic media, and it is easy to agglomerate in organic media, so that its performance and application fields are limited to a large extent. Currently, titanium dioxide is uniformly dispersed in organic phases. The method has the disadvantages of cumbersome process and harsh conditions, such as the anionic surfactant sodium dodecylbenzenesulfonate, which can only achieve phase transfer in an acidic environment. Contents of the invention [0003] The present invention provides a method for uniformly dispersing titanium dioxide in the organic phase in order to solve the shor...

Claims

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Application Information

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IPC IPC(8): B01F3/12B01J21/06B01J35/12B01J37/04
Inventor 井立强付宏刚宋姝屈宜春
Owner 南通国邦科技发展有限公司