Nanometer TiO2 photocatalyst carried by metal net and its preparation
A photocatalyst, metal mesh technology, applied in physical/chemical process catalysts, chemical instruments and methods, chemical/physical processes, etc., can solve problems such as easy loss, difficult recovery of catalysts, and reduced catalyst utilization, and achieve high commercial value. , broad industrial application prospects, simple and practical effect of the process
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Examples
Embodiment 1
[0025] Passivate and modify the surface of the cleaned stainless steel Φ0.4mm, 20 mesh with concentrated sulfuric acid, soak it in sodium lauryl sulfate for 10 minutes, and then put the metal mesh in a roasting furnace at 500°C in an air atmosphere Roasting for 3 hours, 900°C for 2 hours and cooling naturally; the commercially available Portland cement is sieved through a 200-mesh standard sieve, and mixed with nano-TiO 2 Powder mixed evenly, TiO 2 The amount is 20%; the mixture is added to water to adjust to a certain viscosity, and then coated on the surface of the treated metal mesh material, and the holes that may be blocked are blown away by blowing; when the cement is slightly hardened, then Spray nano-TiO on the surface several times 2 Sol, after drying and curing, the nano-TiO supported by the metal mesh can be obtained 2 Photocatalyst, see accompanying drawing 1. Roll the photocatalyst supported by the above-mentioned metal mesh material into a multi-layer cylinder...
Embodiment 2
[0031] Passivate and modify the surface of the cleaned stainless steel mesh Φ0.4mm and 20 mesh with concentrated sulfuric acid, soak it in sodium lauryl sulfate for 10 minutes, and then put the metal mesh in a roasting furnace under air atmosphere for 500 ℃ for 3 hours, 900 ℃ for 2 hours and naturally cooled; the commercially available Portland cement was sieved through a 200-mesh standard sieve, and mixed with nano-TiO 2 Powder mixed evenly, TiO 2 The amount is 20%; the mixture is added to water to adjust to a certain viscosity, and then coated on the surface of the treated metal mesh material, and the holes that may be blocked are blown away by blowing; when the cement is slightly hardened, then The surface is sprayed several times with nano-TiO containing 0.2% platinum 2 Sol, after drying and curing, the nano-TiO supported by the metal mesh can be obtained 2 Photocatalyst, see accompanying drawing 1. Roll the photocatalyst supported by the above-mentioned metal mesh mate...
Embodiment 3
[0033] Passivate and modify the surface of the cleaned stainless steel mesh Φ0.4mm and 20 mesh with concentrated sulfuric acid, soak it in sodium lauryl sulfate for 10 minutes, and then put the metal mesh in a roasting furnace under air atmosphere for 500 ℃ for 3 hours, 900 ℃ for 2 hours and naturally cooled; the commercially available Portland cement was sieved through a 200-mesh standard sieve, and mixed with nano-TiO 2 Mix powder and 2% activated carbon evenly, TiO 2 The amount is 20%; the mixture is added to water to adjust to a certain viscosity, and then coated on the surface of the treated metal mesh material, and the holes that may be blocked are blown away by blowing; when the cement is slightly hardened, then The surface is sprayed several times with nano-TiO containing 0.2% platinum 2 Sol, after drying and curing, the nano-TiO supported by the metal mesh can be obtained 2 Photocatalyst, see accompanying drawing 1. Roll the photocatalyst supported by the above-men...
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Description
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Application Information
- IPC
- B01J21/06
- Inventors
- 吴鸣; 吴合进