Lithium-based catalyst, preparation method thereof and application of lithium-based catalyst in persulfate degradation of wastewater
A catalyst, lithium-based technology, applied in the direction of catalyst activation/preparation, chemical instruments and methods, physical/chemical process catalysts, etc., can solve the problems of limited cobalt ion leaching, secondary pollution, etc., achieve good catalytic performance, reduce By-products, evenly distributed effects
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Embodiment 1
[0044] Preparation of Li-AL LDH
[0045] 1) Weigh 4.833g LiCl·H 2 O and 4.829g AlCl 3 ·6H 2 0 to a 1L flat-bottomed flask and placed in a fume hood, add 20mL of ultrapure water and then stir magnetically. After the mixed metal salts are completely dissolved, add 90mL of isopropanol and n-butanol in turn and continue stirring. This mixed liquid is called A liquid.
[0046] 2) Add 20mL and 6% ammonia water into the conical flask, then add 90mL of isopropanol and n-butanol in sequence, and then mix the liquid in the conical flask evenly. This mixture is called liquid B.
[0047]3) Pour liquid B into the constant pressure funnel, and drop it into the stirred liquid A at a constant speed at a constant speed. After the addition of liquid B is completed, start timing from this time and continue stirring for 24 hours. Then the mixture was centrifuged, washed twice with absolute ethanol and once with ultrapure water, transferred to a 60°C oven for drying and grinding to obtain the...
Embodiment 2
[0049] Preparation of Li-AL LDH
[0050] 1) Weigh 2.416g LiCl·H 2 O and 2.415g AlCl 3 ·6H 2 0 to a 1L flat-bottomed flask and placed in a fume hood, add 20mL of ultrapure water and then stir magnetically. After the mixed metal salts are completely dissolved, add 90mL of isopropanol and n-butanol in turn and continue stirring. This mixed liquid is called A liquid.
[0051] 2) Add 20mL and 6% ammonia water into the conical flask, then add 90mL of isopropanol and n-butanol in sequence, and then mix the liquid in the conical flask evenly. This mixture is called liquid B.
[0052] 3) Pour liquid B into the constant pressure funnel, and drop it into the stirred liquid A at a constant speed at a constant speed. After the addition of liquid B is completed, start timing from this time and continue stirring for 24 hours. Then the mixture was centrifuged, washed twice with absolute ethanol and once with ultrapure water, transferred to a 60°C oven for drying and grinding to obtain th...
Embodiment 3
[0054] Preparation of Li-AL LDH
[0055] 1) Weigh 4.833g LiCl·H 2 O and 4.829g AlCl 3 ·6H 2 0 to a 1L flat-bottomed flask and placed in a fume hood, add 20mL of ultrapure water and then stir magnetically. After the mixed metal salts are completely dissolved, add 90mL of ethanol and n-octanol in turn and continue stirring. This mixed liquid is called A liquid.
[0056] 2) Add 20 mL and 6% ammonia water to the conical flask, then add 90 mL of ethanol and n-octanol in sequence, and then mix the liquid in the conical flask evenly. This mixture is called liquid B.
[0057] 3) Pour liquid B into the constant pressure funnel, and drop it into the stirred liquid A at a constant speed at a constant speed. After the addition of liquid B is completed, start timing from this time and continue stirring for 24 hours. Then the mixture was centrifuged, washed twice with absolute ethanol and once with ultrapure water, transferred to a 60°C oven for drying and grinding to obtain the produc...
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