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Zinc molybdate-cobalt titanate coaxial fiber photo-anode film and preparation method and application thereof

A technology of cobalt titanate and zinc molybdate, which is applied in construction, building components, building insulation materials, etc., can solve problems such as poor anti-corrosion effect, and achieve the effect of improving durability and high-efficiency photocathode protection

Active Publication Date: 2022-03-25
QINGDAO TECHNOLOGICAL UNIVERSITY
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0006] The object of the present invention is to provide a zinc molybdate-cobalt titanate coaxial fiber photoanode film and its preparation method and application. The problem of poor anticorrosion effect of photoanode materials used in photocathode protection on metals used in marine construction projects

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  • Zinc molybdate-cobalt titanate coaxial fiber photo-anode film and preparation method and application thereof
  • Zinc molybdate-cobalt titanate coaxial fiber photo-anode film and preparation method and application thereof
  • Zinc molybdate-cobalt titanate coaxial fiber photo-anode film and preparation method and application thereof

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preparation example Construction

[0030] The present invention also proposes a method for preparing the zinc molybdate-cobalt titanate coaxial fiber photoanode film. The preparation method of the zinc molybdate-cobalt titanate coaxial fiber photoanode film in the embodiment of the present invention includes the following steps: (1) Prepare ZnMoO separately 4 Spinning Precursor and CoTiO 3 Spinning precursor; (2) Spinning to prepare coaxial ZnMoO 4 -CoTiO 3 precursor; (3) on the coaxial ZnMoO 4 -CoTiO 3 The precursor is fired to obtain the zinc molybdate-cobalt titanate coaxial fiber photoanode film.

[0031] In a preferred embodiment of the present invention, the ZnMoO 4 Spinning precursor by adding ZnMoO 4 The precursor solution is prepared by uniformly mixing the first spinning aid solution.

[0032] In a preferred embodiment of the present invention, the CoTiO 3 Spinning precursor by adding CoTiO 3 The precursor solution is prepared by uniformly mixing the second spinning aid solution.

[0033] In...

Embodiment 1

[0053] 1. The zinc molybdate-cobalt titanate coaxial fiber photoanode film of this embodiment is prepared according to the following method:

[0054] (1) CoTiO 3Precursor solution: Prepare a cobalt nitrate solution with a concentration of 1 mmol / L, adjust the pH to 2.5 with citric acid, then add butyl titanate with an equal molar number to the cobalt nitrate, and stir to form a solution.

[0055] (2) ZnMoO 4 Precursor solution: Prepare a zinc nitrate solution with a concentration of 50mmol / L, adjust the pH to 3 with glacial acetic acid, then add ammonium molybdate with an equal molar number to cobalt nitrate, and stir evenly to form a solution.

[0056] (3) Second spinning aid solution: dissolving the second spinning aid polyethylene oxide in the first organic solvent ethanol to prepare a second spinning aid solution with a mass concentration of 25%;

[0057] The first spinning aid solution: dissolving the first spinning aid polyvinyl alcohol in the second organic solvent is...

Embodiment 2

[0065] 1. The zinc molybdate-cobalt titanate coaxial fiber photoanode film of this embodiment is prepared according to the following method:

[0066] (1) CoTiO 3 Precursor solution: adjust pH=5.5 by sulfamic acid, prepare cobalt chloride solution with a concentration of 100mmol / L, adjust pH=5.5 by sulfamic acid, then add butyl titanate with cobalt chloride equimolar number, stir to prepare into solution.

[0067] (2) ZnMoO 4 Precursor solution: Prepare a zinc chloride solution with a concentration of 1mmol / L, adjust the pH to 3.5 with ethylenediaminetetraacetic acid, then add sodium molybdate with an equal molar number to zinc chloride, and stir to form a solution.

[0068] (3) Second spinning aid solution: dissolving the second spinning aid polyvinyl alcohol in the second organic solvent acetone to prepare a second spinning aid solution with a mass concentration of 15%;

[0069] The first spinning aid solution: dissolving the first spinning aid polyacrylic acid in the firs...

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Abstract

The invention belongs to the technical field of corrosion inhibition of marine constructional engineering metal materials, and particularly relates to a zinc molybdate-cobalt titanate coaxial fiber photo-anode film and a preparation method and application thereof. The zinc molybdate-cobalt titanate coaxial fiber photo-anode film is a coaxial fiber-shaped ZnMoO4-CoTiO3 nano heterojunction, and is characterized in that the zinc molybdate-cobalt titanate coaxial fiber photo-anode film is a The zinc molybdate-cobalt titanate coaxial fiber photo-anode film can effectively solve or relieve the problem that in the prior art, a photo-anode material for photoelectric cathode protection has a poor anti-corrosion effect on metal used in marine construction engineering, and efficient photoelectric cathode protection of a marine construction engineering structure is achieved; and the durability of marine constructional engineering (deep and far sea engineering structures) is improved.

Description

technical field [0001] The invention belongs to the technical field of corrosion inhibition of metal materials in marine construction engineering, and in particular relates to a zinc molybdate-cobalt titanate coaxial fiber photoanode film and a preparation method and application thereof. Background technique [0002] With the continuous development of my country's industry and economy, the utilization rate of metals is getting higher and higher. Among them, reinforced concrete is constantly developing with its advantages of stability, firmness and low price, and its utilization rate in various constructions is getting higher and higher. Although the steel bars of reinforced concrete have a good protective effect on metals, with the promotion of use, the problems of corrosion are becoming more and more prominent, especially in the construction of marine-related projects. Cathodic protection is an effective measure to protect metals from corrosion in the ocean. According to t...

Claims

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Application Information

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IPC IPC(8): C23F13/14C23F13/08E04B1/64
CPCC23F13/14C23F13/08E04B1/642Y02E60/36
Inventor 张小影金祖权王晓晴程海洋李宁唐恒闫杰蒋浩森陈越华刘佳豪张依梦仝瑞轩
Owner QINGDAO TECHNOLOGICAL UNIVERSITY
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