• 专利标题:   Photocatalytic composite particle for photocatalytic film in water treatment comprises strontium titanate comprising single crystal particles of strontium titanate of octahedron, dodecahedron or regular hexahedron.
  • 专利号:   CN112604678-A, CN112604678-B
  • 发明人:   DUAN D, JIA Q, ZHONG L, CHEN S, REN Y
  • 专利权人:   INST PROCESS ENG CHINESE ACAD SCI
  • 国际专利分类:   B01J023/02, B01J023/34, B01J023/656, B01J023/89, B01J031/38, B01J035/00, B01J037/02, B01J037/34, C02F001/30, C02F101/30
  • 专利详细信息:   CN112604678-A 06 Apr 2021 B01J-023/02 202136 Pages: 20 Chinese
  • 申请详细信息:   CN112604678-A CN11495688 17 Dec 2020
  • 优先权号:   CN11495688

▎ 摘  要

NOVELTY - Photocatalytic composite particle comprises strontium titanate. A electron donors and electron acceptors are supported on the surface of the strontium titanate. The strontium titanate comprises single crystal particles of strontium titanate of octahedron, dodecahedron or regular hexahedron. USE - The particle is useful for photocatalytic film in water treatment (claimed). ADVANTAGE - The method is simple and greatly improves the degradation efficiency of photocatalysis. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are also included for: (1) preparing photocatalytic composite particles comprising (i) mixing a strontium titanate dispersion, an electron donor salt solution and an electron acceptor salt solution, and stirring under ultraviolet light irradiation to obtain a reaction product, and ((ii) drying and heating the reaction product in sequence to obtain photocatalytic composite particles; and (2) photocatalytic film.