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TiO2/CxXWO3 compound optical catalyst and preparation method thereof

A catalyst and composite light technology, applied in catalyst activation/preparation, metal/metal oxide/metal hydroxide catalyst, physical/chemical process catalyst, etc., can solve the limitation of titanium dioxide photocatalytic efficiency, stability and repeated use, etc. problem, to achieve the effect of improving adsorption performance and large specific surface area

Active Publication Date: 2017-05-24
JIANGSU UNIV
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Problems solved by technology

However, the photocatalytic efficiency, stability and reusability of titanium dioxide modified by the above method are limited to a certain extent.

Method used

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  • TiO2/CxXWO3 compound optical catalyst and preparation method thereof
  • TiO2/CxXWO3 compound optical catalyst and preparation method thereof

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Embodiment Construction

[0020] The embodiment of the present invention is a synthetic method with simple process, low cost and green environmental protection, and TiO is prepared by solvothermal method 2 / Cs x WO 3 The composite material has 0D / 3D composite morphology characteristics, which improves the photocatalytic activity and visible light utilization rate of the material.

[0021] TiO in the present invention 2 / Cs x WO 3 Composite photocatalyst with good catalytic activity. The experiment of degrading rhodamine B under the condition of visible light shows that it has good catalytic activity.

[0022] The invention designs excellent photocatalytic activity Cs x WO 3 / TiO 2 The preparation method of composite photocatalyst comprises the following steps:

[0023] (1) Weigh 0.2976g WCl 6 Dissolve in 40ml of absolute ethanol, and stir magnetically for 30min to obtain a yellow solution;

[0024] (2) Under the condition of magnetic stirring, add weighed 0.065g CsOH·H to the yellow solution...

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Abstract

The invention relates to a TiO2 / CxXWO3 compound optical catalyst and a preparation method thereof. TiO2 / CsxWO3 (x=0.2-0.4) is prepared by virtue of a two-step solvothermal method. The TiO2 / CxXWO3 compound material provided by the invention has a stable and uniform compound shape, and the TiO2 nanoparticles are uniformly distributed on the surfaces of the CsxWO3 microspheres. The TiO2 / CxXWO3 compound material provided by the invention has good optical catalytic activity, and the catalytic activity of the material is obviously enhanced based on a TiO2 monomer. Under irradiation of an artificial visible light source within 2 hours, a rhodamine B dye is degraded, and the degradation rate reaches 80%. The material has good optical catalytic activity, the preparation process is simple and green and environmentally friendly, and the TiO2 / CxXWO3 compound optical catalyst has a huge application prospect in the field of industrial wastewater treatment.

Description

technical field [0001] The present invention relates to a kind of TiO 2 / Cs x WO 3 Composite photocatalyst and its preparation method. Preparation of TiO by a two-step solvothermal method 2 / Cs x WO 3 (x=0.2~0.4). The material has good photocatalytic activity, simple preparation process, green and environmental protection, and has great application prospects in the field of industrial sewage treatment. Background technique [0002] With the development of industrialization, the problem of water pollution and energy crisis have become more and more serious. Traditional sewage treatment methods can no longer meet people's requirements. Finding out a clean, efficient, energy-saving and environmentally friendly sewage treatment method has become a hot research direction. [0003] Since the first discovery of TiO in 1972 2 Since it has photocatalytic activity, the research on photocatalytic technology has always been a hot spot in the field of materials. Photocatalytic...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J23/30B01J37/10C02F1/30
CPCB01J23/002B01J23/30B01J37/10B01J2523/00C02F1/30C02F2101/308C02F2305/10B01J2523/15B01J2523/47B01J2523/69Y02W10/37
Inventor 严学华叶南飞沙大巍戴煜陈明王静静王琼程晓农
Owner JIANGSU UNIV
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