Photocatalysis dust haze eliminating agent and preparation method thereof
A photocatalyst and photocatalytic technology, applied in chemical instruments and methods, separation methods, combined devices, etc., can solve the problems of poor haze particle trapping ability and low practicability, and improve the photocatalytic ability and reduce the surface area. Tension, easy trapping effect
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Embodiment 1
[0044] Dissolve 25.8g (0.1mol) of chemical reagent titanyl sulfate (0.1mol), 4.0g (0.01mol) of ferric sulfate, and 17.2g (0.05mol) of aluminum sulfate in deionized water to prepare a 2mol / L sulfate solution, and filter to remove insoluble substances, mixed to form a mixed sulfate solution. Under stirring, add 205 mL of ammonia water with a concentration of 2 mol / L to the mixed sulfate solution to co-precipitate titanium, iron and aluminum hydroxide, neutralize the solution to a pH value of 11, filter and separate the formed hydroxide precipitate, and use deionized Wash the hydroxide precipitate with water, and use barium chloride test solution to check that the washing water does not contain sulfate ions. Disperse the hydroxide precipitate in 56g (0.56mol) acetylacetone solvent, so that the hydroxide precipitate can be completely peptized, and heat and reflux at 130-140°C for 6h to form Fe-Al co-doped nano-TiO 2 Photocatalyst sol.
[0045] Dilute 37.2g (0.187mol) of commerci...
Embodiment 2
[0048] Dissolve 25.8g (0.1mol) of chemical reagent titanyl sulfate (0.1mol), 8.0g (0.02mol) of iron sulfate, and 8.6g (0.025mol) of aluminum sulfate in deionized water to prepare a 2mol / L sulfate solution, and filter to remove insoluble matter , mixed to form a mixed sulfate solution. Under stirring, add 235 mL of ammonia water with a concentration of 2 mol / L to the mixed sulfate solution to co-precipitate titanium, iron and aluminum hydroxide, neutralize the solution until the pH value is 10, filter and separate the formed hydroxide precipitate, and use deionized Wash the precipitated hydroxide with water, and use barium chloride test solution to check that there is no sulfate ion in the washing water. Disperse the hydroxide precipitate in 47g (0.47mol) acetylacetone solvent, so that the hydroxide precipitate can be completely peptized, and heat and reflux at 130-140°C for 10h to form Fe-Al co-doped nano-TiO 2 Photocatalyst sol.
[0049] Dilute 47.1g (0.235mol) of commercia...
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