Preparation method of nickel titanate/titanium dioxide composite nanomaterial

A technology of composite nanomaterials and titanium dioxide, applied in the direction of titanium dioxide, chemical instruments and methods, titanium oxide/hydroxide, etc., can solve the problems of product without fixed shape, high reaction temperature, particle agglomeration, etc., and achieve the production cost Low, easy to control, high catalytic activity effect

Inactive Publication Date: 2016-08-31
BOHAI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

These processes require complex operations, high reaction temperature, long-term sintering process will cause particles to agglomerate, and the product has no fixed morphology

Method used

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  • Preparation method of nickel titanate/titanium dioxide composite nanomaterial
  • Preparation method of nickel titanate/titanium dioxide composite nanomaterial
  • Preparation method of nickel titanate/titanium dioxide composite nanomaterial

Examples

Experimental program
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Effect test

Embodiment 1

[0030] Slowly add the isopropanol solution of nickel acetylacetonate with a concentration of 0.2 mol / L to the isopropanol solution of titanium acetylacetonate with a concentration of 0.2 mol / L, and dissolve and mix evenly in the alcohol solution. The resulting mixed solution was subjected to a cross-linking reaction at a reaction temperature of 200 °C and a reaction time of 4 hours, wherein the molar ratio of nickel acetylacetonate to titanium acetylacetonate was 1:2. After the cross-linking reaction, the high-temperature reaction was carried out in the muffle furnace. The high-temperature reaction temperature was 600 °C and the reaction time was 24 h. After natural cooling, the target product is obtained.

[0031] The particle size of the product is between 50-70nm, and the yield of the product is 99.6%. The product purity is 99.8%, impurity content: carbon is less than 0.2%. The prepared nickel titanate / titanium dioxide composite nanomaterial was used as a photocatalyst (0...

Embodiment 2

[0033] Slowly add the methanol solution of nickel acetylacetonate with a concentration of 0.2 mol / L to the methanol solution of titanium acetylacetonate with a concentration of 0.2 mol / L slowly, dissolve and mix well in the alcohol solution. The obtained mixed solution was subjected to cross-linking reaction, the reaction temperature was 300°C, and the reaction time was 8 hours, wherein the molar ratio of nickel acetylacetonate to titanium acetylacetonate was 1:2. After the cross-linking reaction, the high-temperature reaction was carried out in a muffle furnace. The high-temperature reaction temperature was 1000 °C, and the reaction time was 6 h. After natural cooling, the target product is obtained.

[0034] The particle size of the product is between 60-80nm, and the yield of the product is 99.2%. The product purity is not less than 99.7%, and the impurity content: carbon is less than 0.3%. The prepared nickel titanate / titanium dioxide composite nanomaterial was used as a...

Embodiment 3

[0036] Slowly add the ethanol solution of nickel acetylacetonate with a concentration of 0.02 mol / L to the ethanol solution of titanium acetylacetonate with a concentration of 0.02 mol / L slowly, dissolve and mix well in the alcohol solution. The resulting mixed solution was subjected to a cross-linking reaction at a reaction temperature of 150 °C and a reaction time of 8 hours, wherein the molar ratio of nickel acetylacetonate to titanium acetylacetonate was 1:2. After the cross-linking reaction, the high-temperature reaction was carried out in a muffle furnace. The high-temperature reaction temperature was 1000 °C, and the reaction time was 6 h. After natural cooling, the target product is obtained.

[0037] The particle size of the product is between 60-70nm, and the yield of the product is 99.5%. The product purity is not less than 99.6%, and the impurity content: carbon is less than 0.4%. The prepared nickel titanate / titanium dioxide composite nanomaterial was used as a ...

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Abstract

The invention belongs to the technical field of functional materials, and relates to a preparation method of a nickel titanate / titanium dioxide composite nanomaterial. The method comprises the following steps: dissolving and uniformly mixing nickel acetylacetonate and titanium acetylacetonate in an alcohol solution, carrying out a cross-linking reaction at a certain temperature, and carrying out heat treatment in a muffle furnace to obtain the nickel titanate / titanium dioxide composite nanomaterial. The preparation method is simple and easy, and the nickel titanate / titanium dioxide composite nanomaterial has the advantages of high purity, low content of impurities, low preparation cost, excellent performances, and realization of industrial batch production. The nickel titanate / titanium dioxide composite nanomaterial prepared in the invention has high catalysis activity as a photocatalytic material, and has wide application prospects in the field of degradation of dye wastewater and indoor harmful gases and the field of photocatalytic disinfection.

Description

technical field [0001] The invention belongs to the technical field of preparation of functional materials, and in particular relates to a preparation method of a nickel titanate / titanium dioxide composite nanomaterial. Background technique [0002] Nickel titanate (NiTiO 3 ) belongs to the triangular crystal system of ilmenite structure, and is a widely used inorganic functional material, which is used in many industrial fields. Nickel titanate has high Q value, low dielectric constant and good acousto-optic and electro-optic properties, also has semi-conductivity and weak magnetism, and can be widely used as semiconductor rectifier, bicarbonate catalyst and surface-coated Dyeing mixture. In addition, nickel titanate can also be used as a cladding material to reduce friction and loss at high temperature without liquid lubricants. In addition, as a semiconductor material with a narrow band gap (2.18eV), nickel titanate has a good photoresponse in the visible light region ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01G23/053B01J23/755
CPCB01J23/755B01J35/004C01G23/053C01P2002/72C01P2004/03C01P2004/64C01P2006/80
Inventor 许家胜艾慧婷张杰张霞王莉丽王琳孙誉东李阁唐爽丁亮车昕彤刘娇邢锦娟张艳萍刘琳钱建华
Owner BOHAI UNIV
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