Ti<3+>-self-doped anatase titanium-oxide photocatalyst with large specific surface area, and synthetic method and applications thereof
A technology with large specific surface area and photocatalyst, applied in metal/metal oxide/metal hydroxide catalysts, physical/chemical process catalysts, chemical instruments and methods, etc., can solve the problem of low total efficiency of converting light energy into hydrogen energy, It is not conducive to the separation of photogenerated electrons and holes, affecting the photon quantum efficiency, etc., to achieve the effect of improving the photocatalytic hydrogen production quantum efficiency, easy structure control, and high product purity.
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[0020] Example 1
[0021] Take 8mL of water into a 50mL beaker, drop 2.0mL (2.4mmol) of TiCl 3 , Obtain a mixed solution (0.24mol / L) with a total volume of 10mL. After stirring it evenly, transfer it to the microwave reactor. The heating rate is 24°C / min, and the maximum microwave power is 800W. The temperature is raised to 150°C and kept at this temperature for 0 min. After cooling to room temperature, it is washed with water to neutrality, centrifuged and vacuum dried to obtain sample A.
[0022] Weigh 50 mg of A sample into a beaker, add 60 mL of water, 20 mL of methanol and 128 μL (0.02 mol / L) of chloroplatinic acid solution, and stir to disperse evenly. Place it under a 300W xenon lamp to illuminate for 30-40 minutes. Wash three times with water and alcohol respectively, and vacuum dry at 80-90℃ for 4h.
Example Embodiment
[0023] Example 2
[0024] Take 8.5mL water in a 50mL beaker, and drop 1.5mL (1.8mmol) of TiCl 3 , To obtain a mixed solution (0.18mol / L) with a total volume of 10 mL, and after stirring it evenly, transfer it to the microwave reactor. The temperature rise rate is 24°C / min, the maximum microwave power is 800W, the temperature is raised to 150°C and kept at this temperature for 0 min, after cooling to room temperature, washing with water to neutrality, centrifugation and vacuum drying to obtain sample A.
[0025] Weigh 50 mg of A sample into a beaker, add 60 mL of water, 20 mL of methanol, and 128 μL (0.02 mol / L) of chloroplatinic acid solution, stir and disperse evenly. Place it under a 300W xenon lamp to illuminate for 30 minutes. Wash three times with water and alcohol respectively, and vacuum dry at 80°C for 4h.
Example Embodiment
[0026] Example 3
[0027] Take 9.0mL of water into a 50mL beaker, drop 1.0mL (1.2mmol) of TiCl 3 , A mixed solution (0.12mol / L) with a total volume of 10 mL is obtained, and after being stirred uniformly, it is transferred to the microwave reactor. The heating rate is 24°C / min, and the maximum microwave power is 800W. The temperature is raised to 150°C and kept at this temperature for 0 min. After cooling to room temperature, it is washed with water to neutrality, centrifuged and vacuum dried to obtain sample A.
[0028] Weigh 50 mg of A sample into a beaker, add 60 mL of water, 20 mL of methanol, and 128 μL (0.02 mol / L) of chloroplatinic acid solution, stir and disperse evenly. Place it under a 300W xenon lamp to illuminate for 30 minutes. Wash three times with water and alcohol respectively, and vacuum dry at 80°C for 4h.
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