• 专利标题:   Preparation of three-dimensional graphene-based zero-valent iron nanomaterial used in advanced oxidation, involves mixing three-dimensional graphene aerogel with iron solution, adding sodium borohydride, washing, and freeze drying.
  • 专利号:   AU2021100148-A4
  • 发明人:   ZHANG P, FAN M, SUN H
  • 专利权人:   UNIV NANKAI
  • 国际专利分类:   B01J023/745, B01J027/20, B01J035/00, B01J035/02, C01B032/182, C02F001/68, C02F001/72, C02F101/30, C02F103/06
  • 专利详细信息:   AU2021100148-A4 15 Apr 2021 B01J-023/745 202138 Pages: 22 English
  • 申请详细信息:   AU2021100148-A4 AU100148 11 Jan 2021
  • 优先权号:   AU100148

▎ 摘  要

NOVELTY - Preparation of a three-dimensional (3D) graphene-based zero-valent iron nanomaterial involves preparing a 3D graphene aerogel, loading nanosized zero-valent iron, mixing the 3D graphene aerogel with a ferrous or ferric iron solution in nitrogen atmosphere to obtain a mixed solution (A), where the mass ratio of the 3D graphene to the iron is (1:1)-(1:10), adding sodium borohydride into the mixed solution (A), allowing to react for 20-40 minutes, and filtering to obtain a product (B), where the molar ratio of iron to sodium borohydride is (1:1)-(1:10), washing the product (B) with absolute ethyl alcohol, freeze-drying for 12-36 hours. USE - Preparation of three-dimensional graphene-based zero-valent iron nanomaterial used for catalytic oxidative degradation of organophosphorus pollutants by persulfate. ADVANTAGE - The method is simple, inexpensive, and efficient, and enables preparation of three-dimensional graphene-based nanosized zero-valent iron material with excellent reactivity, and high loading effect, and recycling property, and reduced secondary pollution. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are included for the following: (1) 3D graphene-based zero-valent iron nanomaterial, which is prepared by the method; and (2) use of the 3D graphene-based zero-valent iron nanomaterial in advanced oxidation technology.