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Ternary heterostructure light degradation organic matter catalyst TiO2-Bi2MoO6/Bi3.64Mo0.36O6.55 and preparation method thereof

A 5%tio2-bi2moo6, heterostructure technology, applied in catalyst activation/preparation, physical/chemical process catalyst, metal/metal oxide/metal hydroxide catalyst, etc., can solve the limitation of industrial application development of nano-TiO2, Low utilization efficiency and other problems, to achieve the effect of low production cost, high yield and good photocatalytic degradation

Active Publication Date: 2013-08-07
NANCHANG HANGKONG UNIVERSITY
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Problems solved by technology

But due to TiO 2 The wide bandgap (3.2eV) can only respond to ultraviolet light below 387.5 nnl, and the utilization efficiency of visible light, which accounts for most of the solar spectrum, is low, which limits the use of nano-TiO 2 industrial application development

Method used

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  • Ternary heterostructure light degradation organic matter catalyst TiO2-Bi2MoO6/Bi3.64Mo0.36O6.55 and preparation method thereof
  • Ternary heterostructure light degradation organic matter catalyst TiO2-Bi2MoO6/Bi3.64Mo0.36O6.55 and preparation method thereof
  • Ternary heterostructure light degradation organic matter catalyst TiO2-Bi2MoO6/Bi3.64Mo0.36O6.55 and preparation method thereof

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Embodiment Construction

[0013] Synthesis of catalyst material of the present invention:

[0014] First disperse 5 mmol of bismuth nitrate evenly into 15 ml of deionized water, then slowly add 10 ml of 0.25 mol / L ammonium molybdate solution into the above aqueous solution, and stir evenly to obtain A solution. Add 0.125 mmol of butyl titanate to 10 ml of ethanol, and stir well to obtain solution B. Then slowly pour B solution into A, stir at room temperature for 30 minutes, add 5 mol / liter of sodium hydroxide solution, adjust the pH value of the solution to 7.5, and put the above solution into a 100 ml polytetrafluoroethylene reaction kettle , and then placed in a 150°C muffle furnace for calcination for 5 hours. The calcined sample was filtered and washed several times, and then placed in a muffle furnace for calcination at 300° C. for 5 hours to obtain the target catalyst.

[0015] Such as figure 1 , figure 2 , image 3 Shown, show through X-ray powder diffraction test, the diffractogram of ca...

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Abstract

Disclosed is ternary neterogeny structural light degradation organic matter catalyst 5% TiO2-Bi2MoO6 / Bi3.64Mo0.36O6.55, which consists titanium dioxide (TiO2) and two types of dibismuth trimolybdenum dodecaoxide (Bi2MoO6 and Bi3.64Mo0.36O6.55) with different structures, wherein the titanium dioxide is 5% of total mole number of bismuth elements. The ternary neterogeny structural light degradationorganic matter catalyst 5% TiO2-Bi2MoO6 / Bi3.64Mo0.36O6.55 has the advantages that the catalyst is the ternary neterogeny structural light degradation organic matter catalyst reported for the first time; 2, the catalyst is directly synthesized by a one-step hydrothermal method, is simple in operation, low in production cost, high in synthesis yield and purity, fine in repeatability, and meets requirements of batch production; 3, the catalyst is fine in thermal stability and is high in acid resistance and alkali resistance; and 4, the catalyst has a good photocatalytic degradation organic effect, and has a higher catalysis effect as compared with single titanium dioxide, dibismuth trimolybdenum dodecaoxide (Bi2MoO6 and Bi3.64Mo0.36O6.55) and an optional combination (TiO2-Bi2MoO6, TiO2-Bi3.64Mo0.36O6.55 and Bi2MoO6 / Bi3.64Mo0.36O6.55) among the single titanium dioxide and the dibismuth trimolybdenum dodecaoxide (Bi2MoO6 and Bi3.64Mo0.36O6.55).

Description

technical field [0001] The invention relates to a photodegradation organic matter catalyst and a preparation method thereof, in particular to a ternary heterostructure photodegradation organic matter catalyst 5%TiO 2 -Bi 2 MoO 6 / Bi 3.64 Mo 0.36 o 6.55 and its preparation method. Background technique [0002] With the development of society and the improvement of people's living standards, industrial wastewater and domestic sewage account for an important part of environmental pollution and become an important issue that people have to consider. In my country, the treatment of sewage generally adopts three categories: physical method, chemical method and biological method. For example, in the physical method, activated carbon is used to adsorb toxic substances. This method only transfers pollutants from one phase to another, and the pollutants themselves have not been completely degraded. The treatment of activated carbon after adsorbing pollutants is also a problem. ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J23/31B01J37/10C02F1/30
CPCY02W10/37
Inventor 张龙珠邹建平林方程丁琳代顺臣邢秋菊
Owner NANCHANG HANGKONG UNIVERSITY
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