Preparation method of heme-doped titanium dioxide photocatalyst
A titanium dioxide, photocatalyst technology, applied in physical/chemical process catalysts, chemical instruments and methods, organic compound/hydride/coordination complex catalysts, etc., can solve problems such as low photocatalytic efficiency
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[0016] The preparation process of titanium dioxide photocatalyst of the present invention is as follows:
[0017] (1) Take 10ml of deionized water and 3ml of glacial acetic acid and mix them with 30ml of absolute ethanol;
[0018] (2) Mix 15ml of isopropyl titanate with 60ml of absolute ethanol;
[0019] (3) Slowly drop the mixture in step 2 into step 1;
[0020] (4) Add 75 mg of heme solution dissolved in 15 ml of ammonia;
[0021] (5) Ultrasound for 10 minutes after stirring evenly;
[0022] (6) React in a hydrothermal reactor at 150°C for 8 hours;
[0023] (7) The mixture is filtered, and washed twice with absolute ethanol and deionized water;
[0024] (8) Dry in a vacuum oven at 45°C for 18 hours;
[0025] (9) Grinding the solid.
[0026] The catalytic efficiency of the titanium dioxide photocatalyst was tested by degrading the rhodamine b solution. After 2 hours, the degradation rate reached 84.2%. At the same time, the degradation efficiency of p25 was only 49.9%. ...
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