Composite catalyst for decomposing ozone in air at room temperature and preparation method thereof
A composite catalyst technology, applied in the direction of molecular sieve catalysts, separation methods, chemical instruments and methods, etc., can solve the problems of complex preparation process and difficulty in large-scale production, and achieve simple production process, increase loading capacity, and low production cost Effect
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Embodiment 1
[0025] Dry 1000g of coconut shell activated carbon in an oven at 110°C for 2 hours; weigh 85g of silver nitrate, 100g of ferric nitrate, 45g of manganese nitrate, and 4g of cerium nitrate, dissolve them in 500ml of deionized water respectively, and mix the four solutions evenly as solution A Weigh 93.5g of sodium carbonate and dissolve it in 2L deionized water, and record it as solution B; soak coconut shell activated carbon in solution A for 6 hours, take it out and dry it at 110°C for 8 hours, immerse it in solution B for 6 hours, wash it three times with deionized water after taking it out, Dry at 150°C for 8 hours to obtain the finished catalyst.
[0026] Catalyst performance test: The ozone catalyst is made into a component and recorded as an ozone filter, the loading amount of the catalyst is 300g, and the size of the ozone filter is: 300×300×30mm. Turn on the fan, adjust the fan speed, and adjust the wind speed in the test air duct to 0.5m / s according to the measured va...
Embodiment 2
[0046] Dry 1000g of molecular sieves in an oven at 110°C for 2 hours; weigh 85g of silver nitrate, 100g of ferric nitrate, 45g of manganese nitrate, and 4g of cerium nitrate, dissolve them in 500ml of deionized water respectively, and mix the four solutions evenly and record them as solution A; Dissolve 93.5g of sodium carbonate in 2L of deionized water, and record it as solution B; immerse the molecular sieve in solution A for 6 hours, take it out and dry it at 110°C for 8 hours, immerse it in solution B for 6 hours, wash it with deionized water three times after taking it out, and dry it at 110°C for 8 hours , to obtain the finished catalyst.
[0047] The performance test of the catalyst is the same as that in Example 1. After testing, the purification efficiency of the catalyst sample is 95%, and the purification life is 1200 hours.
Embodiment 3
[0049]Dry 9 pieces of activated carbon honeycombs with a size of 100×100×30mm in an oven at 110°C for 2 hours; weigh 85g of silver nitrate, 100g of ferric nitrate, 45g of manganese nitrate, and 4g of cerium nitrate, dissolve them in 500ml of deionized water, and mix the four Mix the two solutions evenly and record it as solution A; weigh 93.5g sodium carbonate and dissolve it in 2L deionized water, and record it as solution B; immerse the activated carbon honeycomb in solution A for 6 hours, take it out and dry it at 110°C for 8 hours, and immerse it in solution B for 6 hours. Wash with deionized water three times and dry at 110°C for 8 hours to obtain the finished catalyst.
[0050] The performance test of the catalyst is the same as that in Example 1. After testing, the purification efficiency of the catalyst sample is 100%, and the purification life is 2500 hours.
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