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A kind of preparation method of molecular sieve photocatalyst for ceramic ink

The technology of photocatalyst and ceramic ink is applied in the field of preparation of molecular sieve photocatalyst, which can solve the problems of darkening of colorant, no color development, photocatalytic performance to be improved, etc., and achieve the effect of improving color brightness and stable color development.

Active Publication Date: 2022-01-04
佛山市利德嘉陶瓷制釉有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the inkjet printing ceramic inks that have been published for decorative ceramics have been disclosed to have photocatalytic properties, but their photocatalytic properties still need to be improved; in addition, the colorants of ceramic inks are mainly organic solvent-soluble Composed of metal salts, after the ceramic ink is printed and baked, some colorants undergo chemical changes under high temperature, which leads to darkening or even no coloring of the colorants, especially red and yellow

Method used

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  • A kind of preparation method of molecular sieve photocatalyst for ceramic ink

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Embodiment 1

[0027] The preparation of the molecular sieve photocatalyst for ceramic ink provided by the present embodiment is described as follows:

[0028] A preparation method for a molecular sieve photocatalyst for ceramic ink, comprising the following steps:

[0029] (1) Take lanthanum source, vanadium source and solvent respectively according to the mass volume ratio of lanthanum source, vanadium source and solvent in the ratio of 3g:4g:5ml, and mix the above materials to obtain system I, wherein the lanthanum source is Lanthanum nitrate, the vanadium source is vanadium tetrachloride, and the solvent is water; under vigorous stirring at a stirring speed of 1700r / min, the obtained system I is slowly added dropwise to nitric acid with a pH of 4 and a temperature of 50°C Hydrolysis in the solution to obtain system II, keeping the volume ratio of the total mass of lanthanum source and vanadium source to water in system II at 1:15, and hydrothermally reacting in an autoclave at 120°C for ...

Embodiment 2

[0035] The preparation of the molecular sieve photocatalyst for ceramic ink provided by the present embodiment is described as follows:

[0036] A preparation method for a molecular sieve photocatalyst for ceramic ink, comprising the following steps:

[0037] (1) Take lanthanum source, vanadium source and solvent respectively according to the mass volume ratio of lanthanum source, vanadium source and solvent in the ratio of 4g:5g:7ml, and mix the above materials to obtain system I, wherein the lanthanum source is A mixture of lanthanum chloride and lanthanum acetate mixed in any proportion, the vanadium source is vanadium oxalate, and the solvent is an aqueous organic acid solution; under vigorous stirring at a stirring speed of 1800r / min, the obtained system I is slowly added dropwise Hydrolyze in a nitric acid solution with a pH of 5 and a temperature of 65°C to obtain System II, keep the volume ratio of the total mass of lanthanum source and vanadium source to the water in ...

Embodiment 3

[0043] The preparation of the molecular sieve photocatalyst for ceramic ink provided by the present embodiment is described as follows:

[0044] A preparation method for a molecular sieve photocatalyst for ceramic ink, comprising the following steps:

[0045] (1) Take lanthanum source, vanadium source and solvent respectively according to the mass volume ratio of lanthanum source, vanadium source and solvent in the ratio of 5g:6g:8ml, and mix the above materials to obtain system I, wherein the lanthanum source is A mixture of lanthanum nitrate, lanthanum chloride and lanthanum acetate mixed in any proportion, the vanadium source is a mixture of vanadium tetrachloride and vanadium oxalate mixed in any proportion, and the solvent is an aqueous organic acid solution; the stirring speed is 1900r / min Under vigorous stirring, the obtained system I was slowly added dropwise to a nitric acid solution with a pH of 6 and a temperature of 80°C for hydrolysis to obtain a system II, and th...

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Abstract

The invention belongs to the technical field of preparation of photocatalyst materials, and in particular relates to a method for preparing a molecular sieve photocatalyst used in ceramic inks, comprising the following steps: firstly preparing lanthanum vanadate nanoparticles by a hydrothermal method, and preparing the obtained lanthanum vanadate nanoparticles The particles and furan are mixed in a certain proportion, and oxidative polymerization is realized by chemical oxidation method to obtain a polyfuran-lanthanum vanadate composite, and the obtained polyfuran-lanthanum vanadate composite is then loaded on a molecular sieve to obtain a molecular sieve photocatalyst. The invention applied to ceramic ink can endow the ceramic ink with photocatalytic performance, effectively degrade the organic pollutants on the ceramic surface and decompose the organic harmful gas in the air; in addition, it can stabilize the color development of the colorant and improve the brightness of red and yellow colors .

Description

【Technical field】 [0001] The invention belongs to the technical field of preparation of photocatalyst materials, and in particular relates to a preparation method of a molecular sieve photocatalyst used in ceramic ink. 【Background technique】 [0002] With the development of science and technology and the modernization of industry, people's living standards have been significantly improved, but at the same time people are also harmed by the ensuing environmental pollution. Water pollution, air pollution and indoor harmful gases have caused serious harm to human health. Sewage treatment and air purification have therefore become important research contents for scientific researchers in various countries. How to effectively remove toxic substances such as surfactants, dyes, and heavy metal ions in industrial wastewater, as well as organic waste gases and toxic gases in the atmosphere, has become a hot topic in various research fields. As an advanced oxidation technology, phot...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J31/36C09D11/30A62D3/17B01D53/86B01D53/44B01D53/72A01N59/16A01N43/08A01P3/00A01P1/00
CPCA62D3/17B01D53/8668B01D53/8687A01N43/08A01N59/16C09D11/30B01J31/36B01J35/004
Inventor 刘来君何霞凤郑贤德周硕
Owner 佛山市利德嘉陶瓷制釉有限公司
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