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Nanocomposite Zn2TiO4 functional material and preparation method of dispersion liquid thereof

A nano-composite and functional material technology, applied in the field of preparation of nano-oxide materials, can solve problems such as easy saturation of adsorption materials, achieve high-concentration preparation, increase uniformity, and maintain long-term stability

Pending Publication Date: 2018-11-13
常州德维勒新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to overcome the defect that the adsorption material is easily saturated in the existing VOC removal technology, and to provide a composite chelating agent for preparing nanocomposite Zn 2 TiO 4 Functional material and preparation method of dispersion thereof

Method used

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  • Nanocomposite Zn2TiO4 functional material and preparation method of dispersion liquid thereof
  • Nanocomposite Zn2TiO4 functional material and preparation method of dispersion liquid thereof
  • Nanocomposite Zn2TiO4 functional material and preparation method of dispersion liquid thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0023] Example 1: Premix 300 ml of ethanol and 30 ml of water to form a mixed solvent, then add 6 ml of HNO 3 As an inhibitor of the follow-up reaction; Zn and Ti compounds, weighed 22.32g of zinc nitrate and 10.66g of tetraisopropyl titanate according to the molar ratio of 2:1, added to the previous alcohol-water-acid mixture, passed Stir with a magnetic heating stirrer until it is completely dissolved; then add 10.72 g of ethylenediaminetetraacetic acid and 3.52 g of citric acid into the pre-mixed metal ion solution, mix well, add ammonia water dropwise to adjust the pH value to 7, and continue stirring ; After the above mixed solution is stirred evenly into a sol, then 80 o C heating and stirring until gel state, then at 200 oC Dried in the blast oven for 6 hours to obtain a black fluffy precursor; put the precursor into the muffle furnace for 300 o C,1 oC / min heating rate and calcined for 5 hours to obtain white Zn 2 TiO 4 (ZnO-TiO 2 ) composite powder; take 1 gZn...

Embodiment 2

[0024] Example 2: Premix 300 ml ethanol and 90 ml water to form a mixed solvent, then add 15 ml of HNO 3 As an inhibitor of the follow-up reaction; Zn and Ti compounds, weigh 10.41g of zinc chloride and 13g of tetra-n-butyl titanate according to the molar ratio of 2:1, join in the previous alcohol-water-acid mixture, pass Stir with a magnetic heating stirrer until it is completely dissolved; then add 15.3 g of lauric acid and 7.3 g of nitrilotriacetic acid into the premixed metal ion solution, mix well, add ammonia water dropwise to adjust the pH to 7.5, and continue stirring; After the above mixed solution was stirred evenly to form a sol, then 80 o C heating and stirring until gel state, then at 250 oC Dried in the blast oven for 12 hours to obtain a black fluffy precursor; put the precursor into the muffle furnace for 400 o C, 5 oC / min heating rate calcined for 10 hours to obtain white Zn 2 TiO 4 (ZnO-TiO 2 ) composite powder; take 10 g Zn 2 TiO 4 Composite powde...

Embodiment 3

[0025] Example 3: Premix 300 ml of ethanol and 150 ml of water to form a mixed solvent, then add 21 ml of HNO 3 As an inhibitor of subsequent reactions; Zn and Ti compounds, according to the molar ratio of 2:1, weigh 15.1g of dimethyl zinc and 15g of titanium tetrachloride, and add them to the previous alcohol-water-acid mixture. Heat the stirrer and stir until it is completely dissolved; then add 124.41 g of diethylenetriaminepentaacetic acid and 30.38 g of citric acid into the pre-mixed metal ion solution, mix well and add ammonia water dropwise to adjust the pH value to 8. Continue to stir; after the above mixed solution is stirred evenly into a sol, then 80 o C heating and stirring until gel state, then at 300 oC Dried in the blast oven for 24 hours to obtain a black fluffy precursor; put the precursor into the muffle furnace for 500 o C, 10 oC / min heating rate calcined for 15 hours to obtain white Zn 2 TiO 4 (ZnO-TiO 2 ) composite powder; take 30 gZn 2 TiO 4 Co...

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Abstract

The invention discloses a nanocomposite Zn2TiO4 (ZnO-TiO2) functional material and a preparation method of dispersion liquid thereof. The preparation method comprises the following steps, firstly, preparing high-dispersion nanocomposite Zn2TiO4, adding a zinc compound and a titanium compound in a stoichiometric ratio into a solvent, adding a hydrolysis inhibitor, stirring for slowly hydrolyzing the zinc compound and the titanium compound, adding a composite chelating agent and metal ions to generate a chelation reaction under an alkaline condition, stirring, heating, gelling, and then carryingout heat preservation at 250-300 DEG C for 6 to 36 hours, so as to obtain a sintered precursor; finally, carrying out heat preservation on the precursor at 300-500 DEG C for 5 to 15 hours, so as to obtain ZnO-TiO2 powder having primary particle size of 10 to 30 nm. On this basis, with a low-temperature centrifugal separation technology, ZnO-TiO2, a dispersant and the solvent can achieve high dispersion and high stability on the microscopic scale, and the 1%-60% high-solid-content nanocomposite Zn2TiO4 dispersion liquid can be widely used in antibacterial plastics, deodorant sprays, antibacterial fibers, formaldehyde removal of home improvement and other environmental protection fields.

Description

technical field [0001] The invention relates to a preparation method of nano oxide material. In particular, it relates to a preparation method of a nanocomposite Zn2TiO4 functional material and its dispersion liquid. Background technique [0002] At present, home life has gradually become an important point in people's daily life, and home decoration paint is an indispensable part of home decoration, but the paint generally contains a large amount of organic volatile compounds (VOC), which will cause great harm to people's health. big damage. VOCs can affect the central nervous system and immune function, causing symptoms such as headaches, fatigue, and difficulty concentrating. The VOC content in the air is less than 0.2mg / m 3 When, it has no effect on the human body; 0.2~3mg / m 3 Slightly irritating or uncomfortable to the human body; 3~25 mg / m 3 When it is irritating to the human body or causing headache; greater than 25mg / m 3 When it affects the nerves. Common ...

Claims

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Application Information

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IPC IPC(8): B01J23/06B01J37/03B01J37/08B01D53/86B01D53/44
CPCB01D53/007B01D53/8687B01J23/002B01J23/06B01J37/033B01J37/036B01J37/082B01D2259/4508B01D2257/708B01J35/39B01J35/23
Inventor 张春明张鑫王云波
Owner 常州德维勒新材料科技有限公司
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