Compound photocatalyst and preparation method thereof
A catalyst and composite light technology, applied in the direction of catalyst activation/preparation, chemical instruments and methods, physical/chemical process catalysts, etc., can solve the problem of complex preparation process of carbon nanotube carrier materials, high preparation and operation requirements, unfavorable energy saving and emission reduction, etc. problems, to achieve the effect of excellent adsorption performance, strong catalytic activity and easy operation
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Embodiment 1
[0027] (1) After weighing 5 parts of sodium hexametaphosphate and dissolving it in 200 parts of deionized water to form an aqueous solution, add 5 parts of anatase titanium dioxide and 50 parts of halloysite, mix and carry out surface treatment for 2 hours to obtain material A;
[0028] (2) After drying and breaking up the material A obtained in step (1), add it to 100 parts of ammonium titanyl oxalate solution with a concentration of 10wt%, stir and impregnate for 1 hour, filter, and dry the filter cake in an oven at 180°C for 12 hours , to obtain material B after breaking up, and the filtrate is marked as material C;
[0029] (3) Stirring the material B obtained in step (2) into the material C, followed by dropwise adding 10 parts of EDTA solution with a concentration of 2wt%, and 2 parts of H with a concentration of 3wt% 2 o 2 Solution and 10 parts of ammonia solution with a concentration of 5wt%, reacted in a water bath at 80°C for 6h, filtered, dried at 120°C, placed in ...
Embodiment 2
[0031] (1) After weighing 3 parts of sodium hexametaphosphate and dissolving it in 500 parts of deionized water to form an aqueous solution, add 10 parts of anatase titanium dioxide and 40 parts of halloysite, mix and carry out surface treatment for 1 hour to obtain material A;
[0032] (2) After drying and breaking up the material A obtained in step (1), add it to 150 parts of ammonium titanyl oxalate solution with a concentration of 10wt%, stir and impregnate for 0.5h, filter, and place the filter cake in an oven at 130°C for drying After 14 hours, the material B was obtained after breaking up, and the filtrate was marked as material C;
[0033] (3) Stir the material B obtained in step (2) into material C, then dropwise add 10 parts of EDTA solution with a concentration of 2wt%, and 10 parts of H with a concentration of 3wt%. 2 o 2 Solution and 50 parts of ammonia solution with a concentration of 5wt%, reacted in a water bath at 40°C for 1h, filtered, dried at 120°C, placed...
Embodiment 3
[0035] (1) After weighing 8 parts of sodium hexametaphosphate and dissolving in 800 parts of deionized water to form an aqueous solution, add 20 parts of anatase titanium dioxide and 80 parts of halloysite, mix and perform surface treatment for 2 hours to obtain material A;
[0036] (2) After drying and breaking up the material A obtained in step (1), add it to 300 parts of ammonium titanyl oxalate solution with a concentration of 10wt%, stir and impregnate for 1 hour, filter, and dry the filter cake in an oven at 150°C for 14 hours , to obtain material B after breaking up, and the filtrate is marked as material C;
[0037] (3) Stir the material B obtained in step (2) into material C, then dropwise add 20 parts of concentration of EDTA solution of 2wt%, 20 parts of concentration of 3wt% H 2 o 2 Solution and 100 parts of ammonia solution with a concentration of 5wt%, reacted in a water bath at 60°C for 2h, filtered, dried the filter cake at 120°C, placed in a muffle furnace fo...
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