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Preparation method of vanadium-doped nanometer tungsten oxide material and application of preparation method

A nano-tungsten oxide, tungsten hexachloride technology, applied in nanotechnology, nanotechnology, nanotechnology for materials and surface science, etc., can solve the problem of insufficient attention on ion exchange performance, and achieve stable physical and chemical properties. , high porosity, and the effect of improving adsorption capacity

Inactive Publication Date: 2017-03-29
INST OF NUCLEAR PHYSICS & CHEM CHINA ACADEMY OF
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But for a long time, people mainly pay attention to its conductivity, superconductivity and optical properties, etc., and the ion exchange performance has not attracted enough attention.

Method used

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  • Preparation method of vanadium-doped nanometer tungsten oxide material and application of preparation method
  • Preparation method of vanadium-doped nanometer tungsten oxide material and application of preparation method
  • Preparation method of vanadium-doped nanometer tungsten oxide material and application of preparation method

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] Put 8 parts of tungsten hexachloride solution with a concentration of 0.25mol / L in a polytetrafluoroethylene reactor, add 15 parts of twice distilled water, stir to make it fully dissolve, and then add 3mol / L hydrochloric acid solution to the above solution 3 parts and 30 parts of 0.5mol / L ammonium sulfate solution, stirred for 0.5h, sealed the polytetrafluoroethylene reactor, placed in a programmed oven, set the heating and cooling rate to 1°C / min, and hydrothermally treated at a temperature of 170°C for 24h. Take out the reaction kettle and cool it down to room temperature. Wash the reaction products with distilled water until they are neutral, and dry them in an oven at 80°C for 48 hours to obtain nano-tungsten oxide materials.

Embodiment 2

[0041] Put 8 parts of tungsten hexachloride solution with a concentration of 0.2mol / L in a polytetrafluoroethylene reactor, add 14 parts of twice distilled water, stir to make it fully dissolve, and add sodium metavanadate with a concentration of 0.18mmol / L 3 parts of the solution, continue to stir, and mix thoroughly; then add 3 parts of 3mol / L hydrochloric acid solution and 30 parts of 0.5mol / L ammonium sulfate solution to the above solution, stir for 0.5h, seal the polytetrafluoroethylene reactor, and put it in the program In the oven, set the heating and cooling rate to 1°C / min, and conduct a hydrothermal treatment at a temperature of 170°C for 48 hours. Take out the reactor and cool to room temperature. Wash the reaction products with distilled water until neutral, and dry them in an oven at a temperature of 80°C for 24 hours , to obtain vanadium-doped nano-tungsten oxide material.

Embodiment 3

[0043] Put 7 parts of tungsten hexachloride solution with a concentration of 0.25mol / L in a polytetrafluoroethylene reactor, add 13 parts of twice distilled water, stir to make it fully dissolve, and add sodium metavanadate with a concentration of 0.06mmol / L 4 parts of the solution, continue to stir, and mix thoroughly; then add 5 parts of 2mol / L hydrochloric acid solution and 31 parts of 0.5mol / L ammonium sulfate solution to the above solution, stir for 1h, seal the polytetrafluoroethylene reaction vessel, and place it in a programmed oven , set the heating and cooling rate to 1°C / min, and hydrothermally treat at 180°C for 24 hours. Take out the reactor and cool to room temperature. Wash the reaction products with distilled water until they are neutral, and dry them in an oven at 80°C for 24 hours to obtain Vanadium-doped nano-tungsten oxide material.

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Abstract

The invention discloses a preparation method of a vanadium-doped nanometer tungsten oxide material and application of the preparation method. The preparation method is characterized by comprising the following steps: putting 4-10 parts of a tungsten hexachloride solution with the concentration being 0.2-0.3mol / L in a polytetrafluoroethylene reactor, adding 12-20 parts of secondary distilled water, and stirring to enable the tungsten hexachloride solution and the secondary distilled water to be fully dissolved; adding 1-10 parts of a sodium metavanadate solution with the concentration being 0.06-0.6mmol / L in the solution, continuously stirring, and fully mixing; then adding 1-5 parts of a hydrochloric acid solution with the concentration being 2-4mol / L and 28-35 parts of an ammonium sulfate solution with the concentration being 0.4-0.5mol / L in the polytetrafluoroethylene reactor, and stirring for 0.5-1h; sealing the polytetrafluoroethylene reactor, putting in a program oven with the temperature raising rate and the temperature falling rate being 1-2 DEG C / min, and carrying out hydro-thermal treatment at the temperature of 150-200 DEG C for 24-48h; taking out the reactor, and cooling to room temperature; and washing reaction products with distilled water until neutral, putting the reaction products in an oven with the temperature being 80-100 DEG C, and drying the reaction products for 24-48h to obtain the vanadium-doped nanometer tungsten oxide material.

Description

technical field [0001] The invention relates to a preparation method and application of a vanadium-doped nano-tungsten oxide material, which belongs to the field of preparation of inorganic functional materials. Background technique [0002] 137 Cs is the main heat-releasing nuclide in high-level waste liquid. If it can be separated, the radioactive level of high-level waste liquid can be greatly reduced, and the cost of subsequent treatment of radioactive waste liquid and waste solidification can be reduced. in addition, 137 Cs can be used as a gamma radiation source in breeding, food irradiation storage, sterilization of medical equipment, cancer treatment and various instrument fields. Therefore, in high-level waste liquid 137 The separation of Cs has always been one of the hot spots in the field of spent fuel reprocessing at home and abroad, and it is also an important goal in the reprocessing process. (Zhang Qi et al. in Guangdong Chemical Industry, 2015, 22(43): 1,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G21F9/12B82Y30/00
CPCG21F9/12B82Y30/00
Inventor 余钱红牟婉君蹇源李兴亮马宗平李梅魏洪源刘国平钟文彬陈琪萍谢翔唐惠周官宏
Owner INST OF NUCLEAR PHYSICS & CHEM CHINA ACADEMY OF
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