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Preparation method and application of MoO2 powder with favorable photoelectric properties

A technology of optoelectronic performance and powder, applied in the field of preparation of MoO2 powder, can solve the problems of difficult control and adjustment of reaction conditions, complicated preparation method, and poor performance of MoO2, and achieves uniform size, good adsorption performance and photocatalytic performance, Good cyclic voltammetry performance

Inactive Publication Date: 2014-11-19
XUZHOU UNIV OF TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Now MoO 2 There are many preparation methods. Some synthesis methods require vacuum reaction and inert gas protection, and some require the use of precursors for reaction. This not only requires harsh reaction conditions, but also requires sophisticated reaction instruments. The preparation method is complicated and difficult to control and adjust. Reaction conditions, and the prepared MoO 2 performance is not very good

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  • Preparation method and application of MoO2 powder with favorable photoelectric properties
  • Preparation method and application of MoO2 powder with favorable photoelectric properties
  • Preparation method and application of MoO2 powder with favorable photoelectric properties

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Embodiment

[0042] c: 1 g of ammonium molybdate, 34 ml of deionized water, 4 ml of acetic acid, and 1 g of glucose.

[0043] The preparation method is the same as that of Comparative Example a, and will not be repeated here.

[0044] In order to make the purpose, technical scheme and advantages of the present invention clearer, the MoO provided by the present invention will be described below in conjunction with the examples and experiments. 2 The photoelectric properties of the powders were verified.

[0045] 1. The German Bruker AXS D8ADVANCEX-ray powder diffractometer (XRD, Cu Kα radiation, 40kV, 200mA) to MoO 2 The powder was subjected to phase determination, and the results were as follows: figure 1 Shown, calculate MoO according to formula (1) 2 particle size,

[0046] D=Kλ / (βcosθ) (1)

[0047] In the formula, D is the particle diameter (nm) of the crystal grain perpendicular to the crystal plane direction, K is a constant (0.89), λ is the X-ray wavelength (0.15406nm), and β ...

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Abstract

The invention provides a preparation method and application of MoO2 with favorable photoelectric properties. The preparation method comprises the following steps: S10: an ammonium molybdate aqueous solution with concentration of 25 mg / L is prepared; S20: acetate and glucose are added into the ammonium molybdate solution and stirred to obtain a uniformly mixed solution; S30: the solution obtained in the S20 is sealed in a reaction kettle for heating and subjected to reduction reaction to obtain sediments; S40: the sediments obtained in the S30 are subjected to suction filtration and washing through the adoption of a reagent to obtain brownish-black sediments; S50: the brownish-black sediments obtained in the S40 is dried and grinded to obtain MoO2 powder. According to the preparation method provided by the invention, the prepared MoO2 powder has favorable absorbability and photo-catalytic activity on hexavalent chromium in water and the MoO2 further has a favorable circular volt-ampere property.

Description

【Technical field】 [0001] The present invention relates to a kind of MoO 2 Preparation method of powder, in particular to a kind of MoO with good photoelectric properties 2 Preparation method and application of powder. 【Background technique】 [0002] MoO 2 It is a wide bandgap transition metal oxide with high melting point, high chemical stability and high electrical conductivity. in MoO 2 The distorted octahedral structure in MoO determines the lithium ions in MoO 2 The speed of intercalation and deintercalation in MoO 2 With the advantage of capacity reversibility, MoO 2 It has become a research hotspot in the field of electrochemistry, and can be used as field emission materials, sensors, photochromic color detectors, electrochemical supercapacitors, etc. But about MoO 2 Reports on the treatment of pollutants in water as adsorption materials and semiconductor photocatalysts are rare. [0003] Because the performance of the material depends on the particle size, cr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01G39/02B01J20/06B01J23/28
Inventor 李靖朱杨杨陈艳堵锡华蔡可迎
Owner XUZHOU UNIV OF TECH
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