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A kind of preparation method of magnetically loaded tio2 composite photocatalyst material

A catalyst and composite light technology, which is applied in chemical instruments and methods, physical/chemical process catalysts, metal/metal oxide/metal hydroxide catalysts, etc. Low light source utilization rate and other problems, to achieve the effect of preventing photomelting, easy operation, and high light source utilization rate

Inactive Publication Date: 2016-01-20
HEILONGJIANG UNIV
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  • Summary
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  • Claims
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Problems solved by technology

[0007] The present invention aims to solve the problems in the prior art that it is difficult to recycle and reuse, the utilization rate of the light source is low, and the traditional sewage treatment process is complicated, the efficiency is low, and the secondary pollution is easy to form, and a magnetically loaded TiO 2 Preparation method of composite photocatalyst material

Method used

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  • A kind of preparation method of magnetically loaded tio2 composite photocatalyst material
  • A kind of preparation method of magnetically loaded tio2 composite photocatalyst material
  • A kind of preparation method of magnetically loaded tio2 composite photocatalyst material

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specific Embodiment approach 1

[0030] Specific embodiment one: a kind of magnetically loaded TiO described in this embodiment 2 The preparation method of composite photocatalyst material is specifically carried out according to the following steps:

[0031] 1. Preparation of Fe 3 o 4 particle

[0032] FeCl 3 ·6H 2 O. Dissolve polyvinylpyrrolidone and sodium acetate in ethylene glycol, stir at a stirring speed of 180r / min to 360r / min for 1h to 2h to obtain a mixed solution, put the mixed solution in a polytetrafluoroethylene reactor, and React at a temperature of 180°C to 200°C for 6h to 10h, then cool down to room temperature, wash with deionized water for 3 to 5 times, then wash with absolute ethanol for 3 to 5 times, and finally at a temperature of 45°C to 60°C Drying for 6h ~ 10h under the hood to obtain Fe 3 o 4 particle;

[0033] The FeCl 3 ·6H 2 The mass ratio of O to polyvinylpyrrolidone is 1:(1~3); the FeCl 3 ·6H 2 The mass ratio of O and sodium acetate is 1:(0.5~1.5); The FeCl 3 ·6H 2...

specific Embodiment approach 2

[0045] Specific embodiment two: the difference between this embodiment and specific embodiment one is: the FeCl described in step one 3 ·6H 2 The mass ratio of O to polyvinylpyrrolidone is 1:(1-2). Others are the same as in the first embodiment.

specific Embodiment approach 3

[0046] Specific embodiment three: the difference between this embodiment and specific embodiment one or two is: the FeCl described in step one 3 ·6H 2 The mass ratio of O to sodium acetate is 1: (0.5-1). Others are the same as in the first or second embodiment.

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Abstract

The invention discloses a preparation method of a magnetically-supported TiO2 composite photocatalyst material, which relates to a preparation method of a composite photocatalyst material and aims at solving the problems that recycling is difficult to achieve, the utilization rate of a light source is low, and the traditional sewage treatment technological process is complicated and low in efficiency and easily causes secondary pollution in the prior art. The preparation method of the TiO2 composite photocatalyst material comprises the following steps: firstly, preparing Fe3O4 particles; secondly, pretreating the Fe3O4 particles; thirdly, preparing a Fe3O4 / SiO2 crude product; fourthly, cleaning and drying; and fifthly, preparing a Fe3O4 / SiO2 / TiO2 composite material. The preparation method of the TiO2 composite photocatalyst material has the advantages that recycling is easy to achieve, the utilization rate of a light source is high, and the technological process is simple and easy to perform. The preparation method is used for preparing the magnetically-supported TiO2 composite photocatalyst material.

Description

technical field [0001] The invention relates to a preparation method of a composite photocatalyst material. Background technique [0002] With the rapid development of society and economy, environmental pollution also follows, especially the pollution of water and air is more serious. Among them, there are various types and large quantities of pollutants entering the water body through various channels, causing serious pollution to the environment and directly affecting human health and social development. However, due to the complex process, low efficiency, and secondary pollution of the traditional sewage treatment process, the photocatalytic oxidation method has attracted extensive attention and has been studied and applied. Compared with the traditional physical, chemical and biological environmental treatment methods, the photocatalytic oxidation method has the advantages of application at room temperature, short process flow, simple reaction device, no secondary pollu...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J23/745C02F1/30
CPCY02W10/37
Inventor 万家峰刘洋史秉楠毕天娇
Owner HEILONGJIANG UNIV
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