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Radiant energy photocatalysis combiner

A technology of photocatalyst and radiant energy, which is applied in the direction of physical/chemical process catalysts, chemical instruments and methods, chemical/physical processes, etc., and can solve problems such as high cost, affecting reaction efficiency, and consumption

Inactive Publication Date: 2008-12-17
王竹方
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

For example, titanium dioxide absorbs some colored metal ions such as chromium (Cr), vanadium (V), manganese (Mn), iron (Fe) or nickel (Ni), and these metal ions are in an excited state after absorbing visible light. It is injected into the titanium dioxide material to generate oxygen vacancies by means of plasma radiation to trigger the photocatalyst reaction, but the disadvantage of this method is that it is difficult to form a uniform dispersion state, which not only affects the efficiency of the reaction, but also consumes a relatively high cost

Method used

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  • Radiant energy photocatalysis combiner
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  • Radiant energy photocatalysis combiner

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Example 1. Preparation of radiant energy-efficient photocatalyst complex

[0029] Add appropriate amount of EDTA to the alkaline aqueous solution at room temperature, add and dissolve barium nitrate and sodium fluoride, add quantitative ceramic powder and other powders, after uniform stirring, add titanium tetrachloride dropwise and stir for about 2 hours. Secondly, after the solution is evaporated to dryness by a heat source, the powder is dried in an oven and calcined at a high temperature of about 400° C. to obtain photocatalyst powder. The mixing weight ratio (in grams) of each reactant such as barium nitrate, sodium fluoride, titanium tetrachloride, and porous materials (ceramic powder, glass powder, or activated carbon) is 1~5:0.7~1.8: 0.4-2.0: 2-7, and the number of moles of EDTA is the sum of the number of moles of barium nitrate and titanium tetrachloride. After the reaction is completed, barium fluoride as a promoter and titanium dioxide as a photocatalyst have ...

Embodiment 2

[0032] Example 2. Photocatalyst reaction with radiant energy-efficient photocatalyst complex

[0033] Prepare 6 groups of methyl blue solutions with a concentration of 10 ppm, respectively add 0.2 g of the photocatalyst complex (C1-C6) prepared in Example 1 into the methyl blue solution, and irradiate with 25Gy of Co-60γ radiation source . Since methyl blue has a very large and sensitive absorption peak at the wavelength of about 663nm in the visible light range, the change in the intensity of the absorption peak can be measured by a photoelectric colorimeter. In addition, the methyl blue solution is blue in the oxidized state and colorless in the reduced state. Therefore, the color change of the solution can be easily checked by the naked eye to determine whether the solution sample has undergone redox reaction.

[0034] The device during the reaction can be as Figure 4 As shown, the target to be treated (such as waste resin or industrial wastewater, and here is the methyl blu...

Embodiment 3

[0038] Example 3. Decomposing organic matter with radiant energy-efficient photocatalyst complex

[0039] The reaction device is as described in Example 2, except that the target material to be processed is changed to the cation exchange resin of Purolite Company actually used in Taiwan's nuclear power plant. Combine 1 gram of resin, 1 gram of C6 photocatalyst complex (the preparation method is as in Example 1), 70ml of water and an activity of 5×10 6 Bq's Co-60 placement Figure 4 In the reaction vessel, the maximum absorbed dose rate of the solution is about 4mGy / h. The test was performed with different radiation doses, and the total carbon (TOC) content after the radiation was measured with an element analyzer. The results are shown in Table 4, irradiation doses of 1-9Gy can decompose the resin. As the irradiation dose increases, the resin gradually turns from granular to powder, and finally becomes small molecules in the solution. The irradiation doses listed in Table 4 are t...

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Abstract

The present invention provides a photocatalyst complex with radiation energy effect and its manufacturing method and utilization method. The photocatalyst complex can use ionizing radiation energy or non-ionizing radiation energy as the excitation energy of photocatalyst reaction, which contains a photocatalyst, which can carry out UV photocatalyst reaction, a accelerator, which can absorb radiation energy and release photons that prompt the photocatalyst to react, and a porous material, which can provide a place for fixing photocatalyst and accelerator particles to form a complex , applied to related photocatalytic reactions. Using radiant energy as the excitation energy of the photocatalyst has the advantages of environmental protection, high penetration, energy reuse, and no time limit. In addition, the invention can effectively solve the problem of processing waste resin and organic waste liquid in radioactive waste, and produce a new generation of pollution-free hydrogen energy.

Description

Technical field [0001] The invention relates to a radiant energy-efficient photocatalyst composite that can use radiant energy as a photocatalytic energy source, and a method for manufacturing and using the same. Background technique [0002] Photocatalyst has become one of the most noticed environmental purification materials. It can effectively treat pollutants such as chlorobenzene organics, chlorophenol compounds, cyanides, metal ions and other pollutants. For nitrogen oxides (NO x ), sulfur oxide (SO x ) And other gas pollution treatments also have good results. In addition, the photocatalyst only plays the role of a catalyst in the reaction, it will not be consumed by itself, and will not cause other adverse reactions to the environment, so the development and application of photocatalyst has become one of the most promising research targets. [0003] There are many kinds of photocatalyst materials, such as TiO 2 , ZnO, SnO 2 , ZrO 2 Other oxides and sulfides such as CdS an...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J21/06B01J27/08
Inventor 王竹方余庆聪李振弘
Owner 王竹方
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