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A simple preparation method of cadmium vanadate single crystal nanowire

A technology of single crystal nanometer and cadmium vanadate, which is applied in the direction of single crystal growth, single crystal growth, nanotechnology, etc., can solve the problems of low yield, large grain size, and inability to produce single crystal structure, etc., and achieve high photocatalytic activity , improved electron transport performance, and excellent cycle stability

Active Publication Date: 2018-03-20
HEILONGJIANG UNIV
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Problems solved by technology

[0005] The purpose of the present invention is to solve the problems that the vanadate materials prepared by the prior art have large grain size, irregular appearance, low yield and inability to produce single crystal structure, and provide a cadmium vanadate single crystal nanowire simple preparation method of

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  • A simple preparation method of cadmium vanadate single crystal nanowire
  • A simple preparation method of cadmium vanadate single crystal nanowire
  • A simple preparation method of cadmium vanadate single crystal nanowire

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specific Embodiment approach 1

[0032] Specific embodiment one: This embodiment is a simple preparation method of cadmium vanadate single crystal nanowires, which is completed according to the following steps:

[0033] 1. Preparation of cadmium salt solution: Dissolve cadmium salt in deionized water at a temperature of 25°C to 35°C and a stirring speed of 100r / min to 300r / min to obtain a molar concentration of cadmium ions of 0.1mol / L to 0.5 mol / L cadmium salt solution;

[0034] 2. Prepare metavanadate aqueous solution containing strong electrolyte salt: Dissolve metavanadate and strong electrolyte salt into deionized water at a temperature of 25°C to 35°C and a stirring speed of 100r / min to 300r / min , to obtain a metavanadate aqueous solution containing a strong electrolyte salt;

[0035] The metavanadate ion molar concentration in the metavanadate aqueous solution containing strong electrolyte salt described in step 2 is 0.1mol / L~0.5mol / L, and the molar concentration of strong electrolyte salt is 0.01mol / ...

specific Embodiment approach 2

[0047] Embodiment 2: This embodiment differs from Embodiment 1 in that the cadmium salt described in step 1 is one of cadmium chloride, cadmium nitrate and cadmium acetate or a mixture of several of them. Other steps are the same as in the first embodiment.

specific Embodiment approach 3

[0048] Specific embodiment three: the difference between this embodiment and specific embodiment one or two is: the metavanadate described in step 2 is one or more of ammonium metavanadate, sodium metavanadate and metavanadate A mixture of several of them. Other steps are the same as those in Embodiment 1 or 2.

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Abstract

The invention discloses a simple preparation method of a cadmium vanadate monocrystalline nanometer wire and relates to a preparation method of the cadmium vanadate monocrystalline nanometer wire. The preparation method solves the problem that a vanadate material prepared by the prior art has a large crystal grain size, random morphology, a low yield and no monocrystalline structure. The preparation method comprises 1, preparing a cadmium salt solution, 2, preparing a strong electrolyte salt-containing metavanadate aqueous solution, 3, mixing the solutions, and 4, putting the dried cadmium vanadate monocrystalline nanometer wire precursor in a muffle furnace and carrying out calcining to obtain the cadmium vanadate monocrystalline nanometer wire. Compared with the existing vanadate nanometer material, the cadmium vanadate monocrystalline nanometer wire has a monocrystalline structure and a uniform nano-wire structure and improves electron transmission performances. The invention provides the simple preparation method of the cadmium vanadate monocrystalline nanometer wire.

Description

technical field [0001] The invention relates to a preparation method of cadmium vanadate single crystal nanowire. Background technique [0002] One-dimensional single crystal nanomaterials have excellent electron transport capabilities due to their confinement in specific dimensions and unique nanonization effects, and play an important role in the fields of electronic devices, gas sensing, photocatalysis, and solar cells. Huge effect. However, limited by the preparation method of nanomaterials, in order to obtain single crystal materials, people often obtain them through chemical vapor deposition, physical vapor deposition and other technologies, but this high energy consumption and high vacuum synthesis technology limits the large-scale production of single crystal nanomaterials. production and preparation. Single crystal nanomaterials are often difficult to synthesize in solution systems. Nanomaterials prepared by hydrothermal, solvothermal and other methods usually exh...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C30B7/14C30B29/30C30B29/62B82Y30/00B82Y40/00
CPCB82Y30/00B82Y40/00C30B7/14C30B29/30C30B29/62
Inventor 曲阳付宏刚井立强孟慧媛丁冬雪孙宁
Owner HEILONGJIANG UNIV
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