A hydrothermal method in znmoo 4 The method of introducing fluoride ion in

A fluoride ion, hydrothermal method, applied in chemical instruments and methods, inorganic chemistry, molybdenum compounds, etc., can solve problems such as danger, single synthesis method, and difficulty in confirming the existence of fluoride ions, and achieve efficient synthesis methods, broad Application prospect, the effect of improving visible light activity

Active Publication Date: 2022-04-29
SHANGHAI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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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

Method used

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  • A hydrothermal method in znmoo <sub>4</sub> The method of introducing fluoride ion in
  • A hydrothermal method in znmoo <sub>4</sub> The method of introducing fluoride ion in
  • A hydrothermal method in znmoo <sub>4</sub> The method of introducing fluoride ion in

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Embodiment 1

[0026] A hydrothermal method in ZnMoO 4 The method of introducing fluoride ion in the medium comprises the following steps:

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

[0028] b. The mixed solution obtained in step a was transferred to a 100ml reactor, and hydrothermally reacted at a temperature of 150°C for 20 hours to obtain a yellow product;

[0029] c. The yellow product obtained in step b was repeatedly centrifuged and washed with deionized water and ethanol, dried under vacuum at 50°C for 10 hours, and ground into powder to obtain ZnMoO 4 :F.

Embodiment 2

[0031] A hydrothermal method in ZnMoO 4 The method of introducing fluoride ion in the medium 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. The mixed solution obtained in step a is transferred to a 100ml reactor, and hydrothermally reacted at a temperature of 180°C for 12 hours to obtain a yellow product;

[0034] c. The yellow product obtained in step b was repeatedly centrifuged and washed with deionized water and ethanol, dried under vacuum at 80°C for 6 hours, and ground into powder to obtain ZnMoO 4 :F.

Embodiment 3

[0036] A hydrothermal method in ZnMoO 4 The method of introducing fluoride ion in the medium 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. The mixed solution obtained in step a is transferred to a 100ml reactor, and hydrothermally reacted at a temperature of 200° C. for 24 hours to obtain a yellow product;

[0039] c. The yellow product obtained in step b was repeatedly centrifuged and washed with deionized water and ethanol, dried under vacuum at 60°C for 12 hours, and ground into powder to obtain ZnMoO 4 :F.

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Abstract

The invention discloses a ZnMoO by hydrothermal method 4 The method for introducing fluoride ions in the middle comprises the following steps: a. Weigh molybdenum trioxide and dissolve it in deionized water, then weigh zinc fluoride tetrahydrate and add it to the molybdenum trioxide aqueous solution; b. Transfer the mixed solution obtained in step a In the reaction kettle, hydrothermally react at a temperature of 200-201°C for 12-24 hours to obtain a yellow product; c. repeatedly centrifuge and wash the yellow product obtained in step b with deionized water and ethanol. Vacuum drying for 6‑12 hours and grinding into powder to obtain ZnMoO 4 :F. ZnMoO prepared by the present invention 4 :F materials have been proved by XPS, TG, etc. that a certain amount of fluorine ions exist in the lattice, and have visible light adsorption. The method of the invention surpasses the traditional method of preparing fluorine-containing compounds through hazardous 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 hydrothermal method in ZnMoO 4 The method of introducing fluoride ions in . Background technique [0002] The introduction of fluoride ions into oxides has always been the focus of inorganic chemistry research, because fluoride ions with strong electronegativity bring many excellent properties to oxides beyond simple oxides, such as nonlinear optical materials (nonlinear optical materials). optical materials, electrode materials, fluorescent materials, and visible light photocatalysts, etc. [0003] In traditional synthesis methods, fluoride ions in oxides are mainly synthesized under extreme conditions by using hazardous 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, 13...

Claims

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Application Information

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Patent Type & Authority Patents(China)
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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