Nonmetal doped titanium-based film electrode as well as preparation method and application thereof
A thin-film electrode and non-metallic technology, which is applied in the field of photoelectric catalysis of inorganic non-metallic materials, to achieve high photocatalytic efficiency, simple and easy-to-operate method, and strong adhesion
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Embodiment 1
[0025] 1) Carbon-doped TiO 2 Preparation of particles: Ultrasonic mixing of glucose and titanium isopropoxide at a molar ratio of carbon to titanium of 0.05:1, under air conditions, the resulting mixed solution was kept stirring in a water bath at 30°C for 48 hours until the mixture became a powder state. Then put the powder in a muffle furnace and bake it at 400°C for 4 hours to get carbon-doped TiO 2 particles;
[0026] 2) TiO 2 Preparation of nanocrystals: At a stirring speed of 500 rpm, drop 4 mL of acetic acid into 40 mL of titanium isopropoxide, and continue stirring for 20 minutes, then add water at a uniform speed and heat to 80° C., and continue stirring for 30 minutes. Add nitric acid to adjust the pH value to 3, and then heat at 180°C for 12 hours to obtain TiO 2 Nanocrystalline milky liquid, in which TiO 2 The solid content is 20%;
[0027] 3) Preparation of carbon-doped titanium-based thin film electrodes: 0.5g carbon-doped TiO 2 Granules, 0.02g polyethylene...
Embodiment 2
[0030] 1) Iodine doped TiO 2 Preparation of particles: Ultrasonic mixing of elemental iodine and titanium isopropoxide at a ratio of iodine to titanium molar ratio of 0.1:1, under air conditions, the resulting mixed solution was stirred continuously in a water bath at 30°C for 48 hours until the mixture became a powder state. After that, put the powder in a muffle furnace and bake it at 500°C for 3 hours to obtain iodine-doped TiO 2 particles;
[0031] 2) with embodiment 1 step 2)
[0032] 3) Preparation of iodine-doped titanium-based thin film electrode: 0.5g iodine-doped TiO 2Granules, 0.01g polyethylene glycol 20000 and 1g TiO 2 After the milky liquid of nanocrystals is mixed and ground and dispersed evenly, deionized water is added to adjust the concentration to obtain TiO 2 The total solids content of the slurry is 15%. The slurry was uniformly coated on the ITO conductive glass substrate by a scalpel scraping method and dried at room temperature, and then the film w...
Embodiment 3
[0034] 1) Chlorine-doped TiO 2 Preparation of particles: Ultrasonic mixing of potassium chloride and titanium isopropoxide according to the ratio of chlorine to titanium molar ratio of 0.15:1, the resulting mixed solution was in contact with air, kept stirring in a water bath at 50°C for 48 hours until the mixture became powder state. Then put the powder in a muffle furnace and bake it at 550°C for 2 hours to get chlorine-doped TiO 2 particles;
[0035] 2) with embodiment 1 step 2)
[0036] 3) Preparation of chlorine-doped titanium-based thin film electrode: 0.5g chlorine-doped TiO 2 Granules, 0.01g sodium cellulose and 1g TiO 2 After the milky liquid of nanocrystals is mixed and ground and dispersed evenly, deionized water is added to adjust the concentration to obtain TiO 2 The total solid content of the slurry is 20%. The slurry was uniformly coated on the ITO conductive glass substrate by a scalpel scraping method and dried at room temperature, and then the film was ...
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