• 专利标题:   Preparation of clay mineral-based catalyst used for activating persulfate in degrading organic pollutant by preparing natural clay minerals-containing slurry, adding carbon source, stirring, filtering, washing, and re-dispersing in water.
  • 专利号:   CN113181917-A, CN113181917-B
  • 发明人:   YANG H, DONG X
  • 专利权人:   UNIV CHINA GEOSCIENCES WUHAN
  • 国际专利分类:   B01J021/16, B01J023/34, B01J023/72, B01J023/745, B01J023/75, B01J023/755, B01J032/00, B01J035/10, C02F001/72, C02F101/30, C02F101/34
  • 专利详细信息:   CN113181917-A 30 Jul 2021 B01J-023/75 202180 Pages: 10 Chinese
  • 申请详细信息:   CN113181917-A CN10443138 23 Apr 2021
  • 优先权号:   CN10443138

▎ 摘  要

NOVELTY - Preparation of clay mineral-based catalyst comprises dispersing natural clay minerals in mixed solution of ethanol and water, stirring to obtain slurry containing 50-200 g/L natural clay minerals, adding carbon source, stirring, filtering, and washing to obtain first solid mixture containing 50-200 g/L carbon source; and re-dispersing 10-100 g/L first solid mixture in water, adding 2-10 g/L transition metal salt, stirring, filtering, washing, drying to obtain second solid mixture, calcining, pickling, washing with water until pH is neutral, and drying to obtain MSi double monoatomic co-doped graphene catalyst, where M is cobalt, manganese, copper, nickel and/or iron. USE - The method is for preparation of clay mineral-based catalyst used for activating persulfate in degrading organic pollutant (all claimed). ADVANTAGE - The catalyst has high safety, easy recovery, and excellent performance. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are included for: (1) a clay mineral-based catalyst; and (2) degradation of organic pollutants comprising adding MSi double monoatomic co-doped graphene catalyst and persulfate to to-be-treated organic pollutants, and reacting. The persulfate is potassium persulfate, sodium persulfate, ammonium persulfate, potassium peroxodisulfate, sodium peroxodisulfate and/or ammonium persulfate.