MnSe/TiO2 composite film for photogenerated cathode protection as well as preparation and application thereof

A photogenerated cathodic protection and composite film technology, which is applied in the plating of superimposed layers, surface reaction electrolytic coatings, electrolytic coatings, etc., can solve the problem of difficult to maintain a good photogenerated cathodic protection effect, low solar light utilization rate of thin films, and low photoelectric efficiency. and other problems, to achieve excellent photocathode protection effect, good stability effect, and uniform coating effect.

Active Publication Date: 2015-02-18
INST OF OCEANOLOGY - CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The purpose of the present invention is to overcome the TiO prepared in the past 2 In order to solve the problems of low utilization rate of sunlight, low photoelectric efficiency and difficulty in

Method used

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  • MnSe/TiO2 composite film for photogenerated cathode protection as well as preparation and application thereof
  • MnSe/TiO2 composite film for photogenerated cathode protection as well as preparation and application thereof
  • MnSe/TiO2 composite film for photogenerated cathode protection as well as preparation and application thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0044] MnSe / TiO 2 Preparation of composite membrane:

[0045] Take 0.1mm thick rectangular pure titanium foil as the sample, its length is 15mm and the width is 10mm. Sequentially ultrasonically cleaned in acetone, absolute ethanol and deionized water for 10 min.

[0046] Weigh 0.22g NH 4 F, dissolve in 5 mL of deionized water, add 50 mL of ethylene glycol, and mix well. At room temperature, the cleaned titanium foil was used as the anode and the foil was used as the cathode. In the above mixture, anodization was carried out at a voltage of 20V for 60min. Then, the sample was placed in a muffle furnace and calcined at 450 °C for 2 h, and then cooled to room temperature with the furnace, that is, TiO was prepared on the surface of Ti. 2 Nanotube array films.

[0047] in TiO 2 MnSe nanoparticles were prepared on the surface of nanotube array film, which was 0.166g SeO 2 Dissolve in 50mL absolute ethanol, add 0.058g NaBH 4 Se as a reducing agent 4+ reduced to Se 2- As t...

Embodiment 2

[0055] MnSe / TiO 2 Preparation of composite membrane:

[0056] Take 0.1mm thick rectangular pure titanium foil as the sample, its length is 15mm and the width is 10mm. Sequentially ultrasonically cleaned in acetone, absolute ethanol and deionized water for 10 min.

[0057] Weigh 0.22g NH 4F, dissolve in 5 mL of deionized water, add 50 mL of ethylene glycol, and mix well. At room temperature, the cleaned titanium foil was used as the anode and the foil was used as the cathode. In the above mixture, anodization was carried out at a voltage of 20V for 60min. Then, the sample was placed in a muffle furnace and calcined at 450 °C for 2 h, and then cooled to room temperature with the furnace, that is, TiO was prepared on the surface of Ti. 2 Nanotube array films.

[0058] in TiO 2 MnSe nanoparticles were prepared on the surface of nanotube array film, which was 0.166g SeO 2 Dissolve in 50mL absolute ethanol, add 0.058g NaBH 4 Se as a reducing agent 4+ reduced to Se 2- As th...

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Abstract

The invention relates to a composite film photoanode, in particular to a MnSe/TiO2 composite film for photogenerated cathode protection as well as preparation and application thereof. A TiO2 nanotube array film is calcined and loaded on the surface of a titanium substrate; the nanotube array film is alternately immersed in a solution containing Mn<2+> and a solution containing Se<2-> to obtain the MnSe/TiO2 composite film. The TiO2 nanotube array film is prepared on the surface of titanium foil by an anodic oxidation method firstly and then the MnSe/TiO2 composite film is obtained through continuous ion layer adsorption reaction; the composite film used as a photoanode, has an excellent photogenerated cathode protection effect.

Description

technical field [0001] The invention relates to a composite film photoanode, in particular to a MnSe / TiO used for photogenerated cathodic protection 2 Composite membrane and its preparation and application. Background technique [0002] TiO 2 It is a relatively common optoelectronic material with good photocatalysis, photosensitization and other characteristics. It has become a material with great development prospects and is widely used in air purification, wastewater treatment, solar cells, gas sensors and other fields. In addition, its value in metal corrosion control has gradually attracted extensive attention of scholars at home and abroad. Especially after Yuan and Tsujikawa proposed the concept of photocathode protection, the use of TiO 2 The cathodic protection of metals by photogenerated electrons of semiconductors, which is a green and environmentally friendly method for metal corrosion protection, has aroused great interest. (Yuan Jiangnan, Shigeo Tsujikawa. Ph...

Claims

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Application Information

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IPC IPC(8): C23F13/08C23C28/04C25D11/26
Inventor 王秀通张亮李红孙好芬侯保荣
Owner INST OF OCEANOLOGY - CHINESE ACAD OF SCI
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