• 专利标题:   Preparation method of porous carbon aerogel salt-tolerant ozone catalyst used for catalyzing ozone to remove organic matters, involves concentrating carbon material solution, precooling, sealing, placing in an oven, and shaping to obtain carbon material hydrogel containing nitrate, regenerating.
  • 专利号:   CN114700062-A
  • 发明人:   TANG J
  • 专利权人:   JIANGSU JIANING ENVIRONMENTAL TECHNOLOGY CO LTD
  • 国际专利分类:   B01J021/10, B01J023/10, B01J023/34, B01J035/10, B01J037/32, C02F001/72, C02F001/78, C02F101/30
  • 专利详细信息:   CN114700062-A 05 Jul 2022 B01J-021/10 202297 Chinese
  • 申请详细信息:   CN114700062-A CN10459642 28 Apr 2022
  • 优先权号:   CN10459642

▎ 摘  要

NOVELTY - Preparation method of porous carbon aerogel salt-tolerant ozone catalyst, involves concentrating carbon material solution to 1-1000 mg/mL, precooling to-5-0 ℃, adding 10-1000 mL of 1-500 mg/mL nitrate solution at stirring speed of 10-3000 rpm, sealing, placing in an oven, and shaping at 20-70 ℃ for 4-18 h to obtain carbon material hydrogel containing nitrate; regenerating hydrogel in deionized water and surface of hydrogel are neutral, and then putting hydrogel into freeze dryer for drying for 2-36 hours at temperature of-100-0 ℃ to prepare frozen gel, placing carbon material gel in reaction furnace preserving heat at 800-1500 ℃ for 0.5-8 h for high-temperature carbonization pyrolysis, introducing activated gas to activate and pore-form carbon aerogel after carbonization is started for 10-120 min, cooling, soaking in water, performing filtration by using filter membrane,washing and drying to obtain porous carbon aerogel loaded with metal oxide MxOy. USE - Preparation method of porous carbon aerogel salt-tolerant ozone catalyst used for catalyzing ozone to remove organic matters. ADVANTAGE - The carbon aerogel has good stability, high porosity, large specific surface area, high conductivity, more substances and electron transmission pore passage. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are included for the followings:(1) A salt-tolerant ozone catalyst of porous carbon aerogel, specific surface area reaches 600 to 950m2.g -1The porosity is up to 75-98%, and the aperture is 2.5-8.0 nm.(2)The application of the salt-tolerant ozone catalyst of the porous carbon aerogel, is used for catalyzing ozone to remove organic matters which are difficult to degrade in high-concentration brine with TDS of 1-10%.