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Photo-anode film and preparation method and application thereof

A photoanode and hydrothermal reaction technology, which is applied in metal material coating process, coating, liquid chemical plating, etc., can solve the problems of poor metal anti-corrosion effect, improve durability, improve anti-corrosion effect, and expand light absorption The effect of utilization efficiency

Active Publication Date: 2022-02-25
QINGDAO TECHNOLOGICAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The object of the present invention is to provide a photoanode film, which can effectively solve or alleviate the problem that the photoanode material used for photocathode protection in the prior art has poor anticorrosion effect on metals used in marine construction projects

Method used

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  • Photo-anode film and preparation method and application thereof

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preparation example Construction

[0043] The present invention also provides a SrTiO 3 -CoTiO 3 A method for preparing a photoanode film, which adopts the following technical scheme: including the following steps: (1) pretreating the conductive glass; (2) placing the conductive surface of the conductive glass obtained after the pretreatment in step (1) downward In a mixed solution containing strontium salt, cobalt salt and tetrabutyl titanate, hydrothermal reaction, the surface is deposited with SrTiO 3 -CoTiO 3 Conductive glass; (3) calcining the product obtained through step (2) to obtain the SrTiO 3 -CoTiO 3 Photoanodic film.

[0044] The present invention also provides the above-mentioned SrTiO 3 -CoTiO 3 The application of the photoanode film adopts the following technical scheme: the above-mentioned SrTiO 3 -CoTiO 3 Application of photoanodic film in anticorrosion of steel reinforcement in marine construction engineering.

Embodiment 1

[0047] 1. The SrTiO of this embodiment 3 -CoTiO 3 The photoanode film is prepared according to the following method, comprising the following steps:

[0048] (1) Pretreatment of the conductive glass: Put the FTO conductive glass into the beakers of aqueous solution containing detergent, ethanol solution of NaOH, ethanol and deionized water in sequence, and ultrasonically clean them for 15 minutes respectively, and clean them up (in hydrothermal reaction Before, the FTO conductive glass needs to be thoroughly cleaned, the purpose is to improve the adhesion between the film and the glass);

[0049] (2) Add strontium nitrate, cobalt nitrate and tetrabutyl titanate into the water, stir evenly, then add N-polyvinylpyrrolidone (PVP), continue stirring until dissolved, and prepare a solution containing 0.05mmolL -1 Strontium nitrate, 0.05mmolL -1 Cobalt nitrate, 0.1mmolL -1 A mixed solution of tetrabutyl titanate and 10mmol N-polyvinylpyrrolidone (PVP), and pour the above mixed...

Embodiment 2

[0058] 1. The SrTiO of this embodiment 3 -CoTiO 3 The photoanode film is prepared according to the following method, comprising the following steps:

[0059] (1) Pre-treat the conductive glass: Put the FTO conductive glass into the beaker of aqueous solution containing detergent, ethanol solution of NaOH, ethanol and deionized water in sequence, and ultrasonically clean it for 15 minutes to clean it;

[0060] (2) Add strontium acetate, cobalt acetate and tetrabutyl titanate to water, stir evenly, then add sodium lauryl sulfate, continue stirring until dissolved, and prepare a solution containing 2.0mmolL -1 Strontium acetate, 2.0mmolL -1 Cobalt acetate, 4mmolL -1 A mixed solution of tetrabutyl titanate and 16mmol sodium dodecyl sulfate, and pour the above mixed solution into the reaction kettle; then add the conductive side of the FTO conductive glass obtained through the pretreatment of step (1) to the above mixed solution , after reacting at 150°C for 12 hours, cooling,...

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Abstract

The invention belongs to the technical field of corrosion prevention of marine constructional engineering, and particularly relates to a photo-anode film and a preparation method and application thereof. The preparation method of the photo-anode film comprises the following steps: (1) pretreating conductive glass; (2) putting the conductive surface of the conductive glass pretreated in the step (1) downwards into a mixed solution containing strontium salt, cobalt salt and tetrabutyl titanate, and carrying out hydrothermal reaction; and (3) calcining a product obtained by treatment in the step (2) to obtain the SrTiO3-CoTiO3 photo-anode film. The SrTiO3-CoTiO3 photo-anode film can be used for improving the durability of marine constructional engineering (concrete structures and the like).

Description

technical field [0001] The invention belongs to the technical field of marine construction engineering anticorrosion, and in particular relates to a photoanode film and its preparation method and application. Background technique [0002] In the marine atmospheric environment, the relative humidity in the air is relatively high, and seawater and salt spray are highly corrosive to steel. Therefore, how to reduce the impact of corrosion and reduce maintenance costs has become an important issue that must be considered in design and construction. And with the depletion of land resources, the development of marine resources has attracted the attention of all countries in the world. Therefore, research on its related technical fields is urgent, especially the durability, corrosion resistance, and anti-corrosion prevention and control of marine concrete are problems that need to be solved urgently. [0003] Cathodic protection technology has been widely used in the field of corro...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23F13/08C23F13/14C23C18/12
CPCC23F13/08C23F13/14C23C18/1216
Inventor 金祖权张小影蒋继宏王晓晴
Owner QINGDAO TECHNOLOGICAL UNIVERSITY
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