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A preparation method of ceria nanorod doped titania nanoparticle photocatalyst

A ceria, photocatalyst technology, applied in metal/metal oxide/metal hydroxide catalysts, physical/chemical process catalysts, chemical instruments and methods, etc., can solve the problems of spinning system and preparation conditions, etc., Achieve the effect of high utilization rate, strong degradation effect and strong photocatalytic performance

Active Publication Date: 2020-04-03
NANCHANG HANGKONG UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For example Li Yuejun, Cao Tieping, Wang Changhua, Shao Changlu's "CeO 2 / TiO 2 Preparation of Composite Nanofibers and Research on Photocatalytic Properties", mentioned that CeO was prepared by coaxial electrospinning 2 -TiO 2 Composite nanofibers, although this technology has some advantages, is easily limited by the spinning system and preparation conditions. At present, the preparation of CeO by electrospinning technology 2 -TiO 2 There are few reports on composite nanofibers and their application to organic pollutants

Method used

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  • A preparation method of ceria nanorod doped titania nanoparticle photocatalyst

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Embodiment 1

[0025] A preparation method of ceria nanorod doped titania nanoparticle photocatalyst, the steps are as follows:

[0026] Synthesis of ceria nanorods:

[0027] 1.5g CeCl 3 •7H 2 O was dissolved in 5ml deionized water to make liquid A, 2.4g NaOH was dissolved in 15ml deionized water to make liquid B, mixed liquid A and liquid B, stirred for 10min, then added the mixed solution into the reaction kettle, and reacted React at 130°C for 18 hours, wash the product with deionized water, then react and dry at room temperature for 20 hours, and continue to bake at 300°C for 4 hours to prepare ceria nanorods;

[0028] Synthetic CeO 2 / TiO 2 catalyst of light:

[0029] Put 100mg of ceria nanorods prepared in step (1) into 50-100ml of water and stir, then add 0.095ml of TiCl 3 solution, stir the mixture for 30 minutes, put it in a reaction kettle, and react at 180°C for 12 hours. After the reaction is completed, the product is washed repeatedly with deionized water and ethanol, ...

Embodiment 3

[0031] A preparation method of ceria nanorod doped titania nanoparticle photocatalyst, the steps are as follows:

[0032] Synthesis of ceria nanorods:

[0033] With embodiment 1.

[0034] Synthetic CeO 2 / TiO 2 catalyst of light:

[0035] Put 100mg of ceria nanorods prepared in step (1) into 50-100ml of water and stir, then add 0.19ml of TiCl 3 solution, stir the mixture for 30 minutes, put it in a reaction kettle, and react at 180°C for 12 hours. After the reaction is completed, the product is washed repeatedly with deionized water and ethanol, and then dried in a vacuum drying oven at 60°C to obtain ceria Nanorod-doped titania particle photocatalyst, namely 20% CeO 2 / TiO 2 Nanocomposite, the mass of titanium dioxide accounts for 20% of the mass of ceria.

Embodiment 4

[0037] A preparation method of ceria nanorod doped titania nanoparticle photocatalyst, the steps are as follows:

[0038] Synthesis of ceria nanorods:

[0039] With embodiment 1.

[0040] Synthetic CeO 2 / TiO 2 catalyst of light:

[0041] Put 100mg of ceria nanorods prepared in step (1) into 50-100ml of water and stir, then add 0.285ml of TiCl 3 solution, stir the mixture for 30 minutes, put it in a reaction kettle, and react at 180°C for 12 hours. After the reaction is completed, the product is washed repeatedly with deionized water and ethanol, and then dried in a vacuum drying oven at 60°C to obtain ceria Nanorod-doped titania particle photocatalyst, namely 30% CeO 2 / TiO 2 Nanocomposite, the mass of titanium dioxide accounts for 30% of the mass of ceria.

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Abstract

The invention relates to a preparation method of ceria nanorod doped titanium dioxide nanoparticle photocatalyst, which uses cerium trichloride heptahydrate, sodium hydroxide, deionized water, titanium trichloride and ethanol as raw materials, through a hydrothermal method A photocatalyst doped with ceria nanorods and titania nanoparticles was prepared. This product is simple to prepare, low in cost, and has good catalytic and adsorption properties. Under normal temperature and pressure, and under sunlight, it can completely catalyze and degrade organic pollutants, and the degradation products are pollution-free, and the catalyst can adsorb inorganic pollutants. such as heavy metal ions. The present invention also carries out research on the photocatalytic performance and adsorption performance of the prepared photocatalyst. In the experiment, rose bengal and lead nitrate are respectively used as pollutants in the photocatalytic and adsorption experiments. The research shows that the performance of the catalyst is good.

Description

technical field [0001] The invention relates to a preparation method of a photocatalyst doped with ceria nanorods and titanium dioxide nanoparticles, and belongs to the technical field of photocatalysts. Background technique [0002] Among the ecological pollution in our country, water pollution is particularly serious. However, there are many problems in the current water pollution treatment technology, such as high cost and cumbersome operation, etc., which restrict the development of water pollution treatment. Therefore, establishing effective methods for degrading organic pollutants in water plays an important role in protecting water resources. [0003] Compared with traditional water pollution treatment technology, photocatalytic technology has great advantages. It combines the advantages of catalytic degradation and adsorption. Organic pollution and inorganic pollution can be treated at the same time, and there is less secondary pollution, moderate reaction conditions...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J23/10C02F1/30
CPCB01J23/10B01J35/004C02F1/30C02F2305/10Y02W10/37
Inventor 谢宇宋健华肖针黄子毅项文翔凌云李家辉
Owner NANCHANG HANGKONG UNIVERSITY
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