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Method for introducing fluorine ions into ZnMoO4 through hydrothermal method

A technology of fluoride ion and hydrothermal method, which is applied in chemical instruments and methods, inorganic chemistry, molybdenum compounds, etc., can solve the problems of difficulty in confirming the existence of fluoride ion, danger, single synthesis method, etc., and achieve the improvement of visible light activity and high efficiency. Synthetic method, the effect of broad application prospects

Active Publication Date: 2021-01-01
SHANGHAI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Doping with cations such as Tb3+ and Eu3+ is a common way to improve its optical properties, but the introduction of anions such as fluorine ions is in ZnMoO 4 No report has been found in the research, on the one hand, because the current synthesis method is too single and dangerous (HF as the source of fluoride ion), on the other hand, the fluoride ion in the oxide ZnMoO 4 It is more difficult to confirm the presence or absence of cations in

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  • Method for introducing fluorine ions into ZnMoO4 through hydrothermal method
  • Method for introducing fluorine ions into ZnMoO4 through hydrothermal method
  • Method for introducing fluorine ions into ZnMoO4 through hydrothermal method

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Embodiment 1

[0026] A hydrothermal method on ZnMoO 4 The method for importing fluoride ions in the present invention comprises the following steps:

[0027] a. Weigh 432.2 mg of molybdenum trioxide and dissolve it in 70 ml of deionized water, then weigh 527.5 mg of zinc fluoride tetrahydrate and add it to the molybdenum trioxide aqueous solution;

[0028] b. Transfer the mixed solution obtained in step a to a 100ml reaction kettle, and conduct a hydrothermal reaction at a temperature of 150° C. for 20 hours to obtain a yellow product;

[0029] c. Repeated centrifugal washing of the yellow product obtained in step b with deionized water and ethanol, vacuum drying at 50°C for 10 hours, and grinding into powder to obtain ZnMoO 4 :F.

Embodiment 2

[0031] A hydrothermal method on ZnMoO 4 The method for importing fluoride ions in the present invention comprises the following steps:

[0032] a. Weigh 432.8 mg of molybdenum trioxide and dissolve it in 70 ml of deionized water, then weigh 527.2 mg of zinc fluoride tetrahydrate and add it to the molybdenum trioxide aqueous solution;

[0033] b. Transfer the mixed solution obtained in step a to a 100ml reaction kettle, and conduct a hydrothermal reaction at a temperature of 180° C. for 12 hours to obtain a yellow product;

[0034] c. Repeated centrifugal washing of the yellow product obtained in step b with deionized water and ethanol, vacuum drying at 80°C for 6 hours, and grinding into powder to obtain ZnMoO 4 :F.

Embodiment 3

[0036] A hydrothermal method on ZnMoO 4 The method for importing fluoride ions in the present invention comprises the following steps:

[0037] a. Weigh 432.0 mg of molybdenum trioxide and dissolve it in 70 ml of deionized water, then weigh 527.0 mg of zinc fluoride tetrahydrate and add it to the molybdenum trioxide aqueous solution;

[0038] b. Transfer the mixed solution obtained in step a to a 100ml reaction kettle, and conduct a hydrothermal reaction at a temperature of 200° C. for 24 hours to obtain a yellow product;

[0039] c. Repeated centrifugal washing of the yellow product obtained in step b with deionized water and ethanol, vacuum drying at 60°C for 12 hours, and grinding into powder to obtain ZnMoO 4 :F.

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Abstract

The invention discloses a method for introducing fluorine ions into ZnMoO4 by a hydrothermal method. The method comprises the following steps: a, weighing molybdenum trioxide, dissolving themolybdenumtrioxide in deionized water, weighing zinc fluoride tetrahydrate, and adding into the obtained aqueous molybdenum trioxide solution; b, transferring a mixed solution obtained in step a into a reaction kettle, and carrying out a hydrothermal reaction for 12-24 hours at the temperature of 200-201 DEG C to obtain a yellow product; and c, repeatedly and centrifugally washing the yellow product obtained in step b with deionized water and ethanol, carrying out vacuum drying for 6-12 hours at the temperature of 50-80 DEG C, and grinding into powder to obtain ZnMoO4: F. According to the ZnMoO4: F material prepared by the invention, XPS, TG and the like prove that a certain amount of fluorine ions exist in crystal lattices, and the ZnMoO4: F material has visible light adsorption. The method disclosed by the invention exceeds the traditional method for preparing the fluorine-containing compound by using dangerous reactants such as HF and PVDF, and is a non-toxic and simple preparation method.

Description

technical field [0001] The invention relates to the technical field of hydrothermal synthesis, in particular to a method of hydrothermal synthesis of ZnMoO 4 The method of introducing fluoride ion in the Background technique [0002] The introduction of fluorine ions into oxides has always been the focus of inorganic chemistry research, because fluorine ions with strong electronegativity bring many excellent properties to oxides beyond simple oxides, such as nonlinear optical materials (nonlinear optical materials), electrode materials, fluorescent materials, and visible light photocatalysts. [0003] In traditional synthesis methods, fluoride ions in oxides are mainly synthesized under extreme conditions by using dangerous compounds such as hydrofluoric acid (HF), polyvinylidene fluoride (PVDF), and high temperature and high pressure reactions, such as layered compounds RbLaNb2O6F (J. Am. Chem. Soc. 2009, 131, 9849–9855) and PbFeO2F (Chem. Mater. 2005, 17, 6, 1386–1390). ...

Claims

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Application Information

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IPC IPC(8): C01G39/00
CPCC01G39/006C01P2002/72C01P2002/84C01P2002/85C01P2002/88C01P2004/03
Inventor 陈文倩唐量朱慜施文彦吴明红
Owner SHANGHAI UNIV
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