A preparation method of nitrogen-doped titanium dioxide with controllable crystal phase
A technology of titanium dioxide and nitrogen doping, which is applied in chemical instruments and methods, chemical/physical processes, physical/chemical process catalysts, etc., to achieve the effects of mild reaction conditions, simple operation, and low energy consumption
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Embodiment 1
[0019] In a 500mL beaker, add 30mL of H with a molar concentration of 10mol / L 2 o 2 , add 2 mL of isopropyl titanate with a molar concentration of 3.3 mol / L, and stir for 35 min in a constant temperature water bath at 50°C. Thereafter, the gel was dried in an oven at 120 °C for 24 h. The dried dry rubber was ground into powder and calcined in a muffle furnace at 500°C for 4h.
Embodiment 2
[0021] In a 500mL beaker, add 30mL of H with a molar concentration of 10mol / L 2 o 2 , then add 1 mL of ammonia water with a molar concentration of 0.264 mol / L, add 2 mL of isopropyl titanate with a molar concentration of 3.3 mol / L, and stir for 35 min in a constant temperature water bath at 50°C. Thereafter, the gel was dried in an oven at 120 °C for 24 h. The dried dry rubber was ground into powder and calcined in a muffle furnace at 500°C for 4h.
Embodiment 3
[0023] In a 500mL beaker, add 30mL of H with a molar concentration of 10mol / L 2 o 2 , then add 1 mL of ammonia water with a molar concentration of 0.528 mol / L, add 2 mL of isopropyl titanate with a molar concentration of 3.3 mol / L, and stir for 35 min in a constant temperature water bath at 50°C. Thereafter, the gel was dried in an oven at 120 °C for 24 h. The dried dry rubber was ground into powder and calcined in a muffle furnace at 500°C for 4h.
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