Preparation method for chlorine doped titanium dioxide photocatalyst
A technology of titanium dioxide and photocatalyst, which is applied in the direction of physical/chemical process catalysts, chemical instruments and methods, chemical/physical processes, etc., can solve the problems of limitation, easy photocorrosion of cadmium selenide, low solar utilization rate, etc., and achieve uniform size Effect
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Embodiment 1
[0016] Preparation method of chlorine-doped titanium dioxide photocatalyst
[0017] (1) Mix titanium dioxide powder, sodium chloride and absolute ethanol for ball milling to obtain wet powder, the diameter of the ball is 4-6 mm, the ball-to-material ratio is (7-10): 1, and the milling speed is 500-600 rpm , the ball milling time is 5-7 hours;
[0018] The mass ratio of titanium dioxide powder and sodium chloride is 2.8:1.
[0019] (2) The wet powder is dried at 60°C for 2 hours, and then calcined at 800°C for 5 hours.
[0020] XRD and XPS characterizations showed that the synthesized nanomaterials were chlorine-doped titanium dioxide. The spherical particle size of the obtained titanium dioxide crystal is uniform.
[0021] The degradation rate of chlorine-doped titanium dioxide to ciprofloxacin wastewater reaches more than 87%.
[0022] (3), dissolving the ciprofloxacin template molecule, acrylamide functional monomer, azobisisobutylcyanide and trimethylol triacrylate in a...
Embodiment 2
[0031] Preparation method of chlorine-doped titanium dioxide photocatalyst
[0032] (1) Mix titanium dioxide powder, sodium chloride and absolute ethanol for ball milling to obtain wet powder, the diameter of the ball is 4-6 mm, the ball-to-material ratio is (7-10): 1, and the milling speed is 500-600 rpm , the ball milling time is 5-7 hours;
[0033] The mass ratio of titanium dioxide powder and sodium chloride is 2.8:1.
[0034] (2) The wet powder is dried at 50°C for 4 hours, and then calcined at 600°C for 7 hours.
[0035] (3), dissolving the ciprofloxacin template molecule, acrylamide functional monomer, azobisisobutylcyanide and trimethylol triacrylate in a mixed solution of methanol and water, and stirring evenly to obtain a precursor solution;
[0036] The volume ratio of methanol to water is 7:3;
[0037] The mass ratio of ciprofloxacin template molecule, acrylamide, azobisisobutylcyanide and trimethylol triacrylate is 1:2:5:3.
[0038] (4), adding the precursor s...
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