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.
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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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