Method for synthesizing vanadium acid zinc micro/nanowire material by adopting hydrothermal method

A technology of nanowires and zinc vanadate, applied to the growth of polycrystalline materials, chemical instruments and methods, vanadium compounds, etc., to achieve the effect of simple operation and controllable experimental conditions

Inactive Publication Date: 2011-08-03
NORTH CHINA UNIVERSITY OF SCIENCE AND TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, there are still certain technical difficulties in controlling the micro-morphology of zinc vanadate micro/nano materials by existing synthesis methods. In particular, there are few reports on micro-nano wire-like materials in the literature; the patent of the present invention a...

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  • Method for synthesizing vanadium acid zinc micro/nanowire material by adopting hydrothermal method
  • Method for synthesizing vanadium acid zinc micro/nanowire material by adopting hydrothermal method
  • Method for synthesizing vanadium acid zinc micro/nanowire material by adopting hydrothermal method

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Embodiment 1

[0024] At room temperature, prepare a 0.00125 mol / L zinc nitrate aqueous solution, weigh the molar number of ammonium metavanadate solid to twice the molar number of zinc nitrate, add distilled water at 60-75°C until the ammonium metavanadate is completely dissolved, and then gradually Add it dropwise to an aqueous solution of zinc nitrate, move the mixed solution to a hydrothermal reaction kettle, and keep it in a 140-degree thermostat for 12 hours to prepare a pure-phase zinc vanadate micro / nano material. The product was scanned by SEM ( figure 1 ) shows that the product is an ultra-long nanowire with a uniform diameter, its diameter is 80-120 nanometers, the length can reach 3-10 microns, and the surface is smooth. Many nanowires are interwoven into a network structure, and there is a slight agglomeration phenomenon.

Embodiment 2

[0026] At room temperature, configure a 0.00750 mol / L zinc nitrate aqueous solution, weigh the molar number of ammonium metavanadate solid to twice the molar number of zinc nitrate, add distilled water at 60-75°C until the ammonium metavanadate is completely dissolved, and then gradually Add it dropwise to an aqueous solution of zinc nitrate, move the mixed solution to a hydrothermal reaction kettle, and keep it in a 140-degree thermostat for 12 hours to prepare a pure-phase zinc vanadate micro / nano material. The product was scanned by SEM ( figure 2 ) shows that the product is a nanowire with uniform length and diameter, its diameter is only 20-100 nanometers, and its length can reach 1-10 microns.

Embodiment 3

[0028] At room temperature, configure a 0.00875 mol / L zinc nitrate aqueous solution, weigh the molar number of ammonium metavanadate solid to twice the molar number of zinc nitrate, add distilled water at 60-75°C until the ammonium metavanadate is completely dissolved, and then gradually Add it dropwise to an aqueous solution of zinc nitrate, move the mixed solution to a hydrothermal reaction kettle, and keep it in a 140-degree thermostat for 12 hours to prepare a pure-phase zinc vanadate micro / nano material. The product was scanned by SEM ( image 3 ) shows that the product is a relatively large number of nanowires and a small amount of nanosheets; wherein, the well-dispersed nanowires have a uniform diameter and length, with a diameter of 50-100 nanometers and a length of 2-4 microns.

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Abstract

The invention discloses a method for synthesizing a vanadium acid zinc micro/nanowire material by adopting a hydrothermal method. In the method, ammonium metavanadate and zinc nitrate are used as reaction materials, distilled water is used as a solvent, a surfactant is used for controlling a microstructure, and the vanadium acid zinc micro/nanowire material with a regular appearance can be prepared under a hydro-thermal condition. The technology has the advantages of simplicity in operation, feasibility, controllable experimental condition, good repeatability, suitability for mass production and the like; and the synthesized material can play an important and positive role in multiple fields such as electrode material, photoluminescence, gas sensing and the like.

Description

technical field [0001] The patent of the present invention relates to the synthesis technology of inorganic functional micro-nano materials, especially a method for synthesizing zinc vanadate micro / nano wire materials by hydrothermal method. technical background [0002] Due to its unique crystal structure, metal vanadates can be used as key core materials in the fields of electrode materials, photoluminescence, gas sensing, permanent magnet materials, and biomedical materials. In order to give full play to the small size effect and quantum effect of materials, in recent years, the micronanoization of metal vanadate has become one of the research hotspots in the field of material chemistry (C.C.Yu, C.X.Li, et al, Crystal Growth & Design.2009, 9, 783; L.W. Qian, J. Zhu, et al, Chem. Eur. J. 2009, 15, 1233; J. F. Liu, Y. D. Li, Adv. Mater. 2007, 19, 1118; J. F. Liu, Y. D. Li, J. Mater. Chem.2007, 17, 1797; Y.P.Fang, A.W.Xu, et al, Adv.Funct.Mater.2003, 13.955; A.W.Xu, Y.P.Fan...

Claims

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Application Information

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IPC IPC(8): C30B29/30C30B29/62C30B7/10C01G31/00
Inventor 李春生孙嬿张志佳马雪刚王莉娜宋明阳
Owner NORTH CHINA UNIVERSITY OF SCIENCE AND TECHNOLOGY
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