Nitrogen oxide adsorbent as well as preparation method and application thereof
A technology of nitrogen oxides and adsorbents, applied in chemical instruments and methods, other chemical processes, gas treatment, etc., can solve problems such as high investment, operation and maintenance costs, low feasibility, and low purification efficiency of nitrogen oxides , to achieve the effect of convenient industrial production, good treatment effect and ideal effect
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Embodiment 1
[0016] In the embodiment of the present invention, a nitrogen oxide adsorbent is composed of the following raw materials in parts by weight: 26 parts of nano-attapulgite, 9 parts of gallic acid, 5 parts of peroxidase, and 1 part of cerium acetylacetonate.
[0017] The peroxidase is mixed with 3.2 times the mass of ethanol to prepare the peroxidase solution; the gallic acid is mixed with 8.3 times the mass of deionized water to prepare the gallic acid solution. Mix and grind nano-attapulgite and cerium acetylacetonate, add gallic acid solution, heat to 88°C and seal and stir at this temperature for 86min, then add peroxidase solution, cool down to 66°C and stir at this temperature 52min, then lowered to 60°C and ultrasonically treated at this temperature for 33min, the ultrasonic power was 1000W, then stirred at 98°C until dry, and then calcined in a muffle furnace at 430°C for 3.2h to obtain the adsorbent.
Embodiment 2
[0019] In the embodiment of the present invention, a nitrogen oxide adsorbent is composed of the following raw materials in parts by weight: 34 parts of nano-attapulgite, 17 parts of gallic acid, 13 parts of peroxidase, and 5 parts of cerium acetylacetonate.
[0020] The peroxidase is mixed with 3.2 times the mass of ethanol to prepare the peroxidase solution; the gallic acid is mixed with 8.3 times the mass of deionized water to prepare the gallic acid solution. Mix and grind nano-attapulgite and cerium acetylacetonate, add gallic acid solution, heat to 88°C and seal and stir at this temperature for 86min, then add peroxidase solution, cool down to 66°C and stir at this temperature 52min, then lowered to 60°C and ultrasonically treated at this temperature for 33min, with an ultrasonic power of 1000W, then stirred at a temperature of 100°C until dry, and then calcined in a muffle furnace at 430°C for 3.2h to obtain the adsorbent.
Embodiment 3
[0022] In the embodiment of the present invention, a nitrogen oxide adsorbent is composed of the following raw materials in parts by weight: 28 parts of nano-attapulgite, 11 parts of gallic acid, 7 parts of peroxidase, and 2 parts of cerium acetylacetonate.
[0023] The peroxidase is mixed with 3.2 times the mass of ethanol to prepare the peroxidase solution; the gallic acid is mixed with 8.3 times the mass of deionized water to prepare the gallic acid solution. Mix and grind nano-attapulgite and cerium acetylacetonate, add gallic acid solution, heat to 88°C and seal and stir at this temperature for 86min, then add peroxidase solution, cool down to 66°C and stir at this temperature 52min, then lowered to 60°C and ultrasonically treated at this temperature for 33min, with an ultrasonic power of 1000W, then stirred at a temperature of 99°C until dry, and then calcined in a muffle furnace at 430°C for 3.2h to obtain the adsorbent.
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