• 专利标题:   Magnetic ferric oxide/graphene oxide nanocomposite Fenton-like catalytic material comprises ferric oxide with nano hollow sphere structure, and graphene oxide with a fold-like thin film structure covering the surface of the hollow sphere.
  • 专利号:   CN110586097-A
  • 发明人:   ZHOU J, DU Y, PENG Y, WANG S
  • 专利权人:   UNIV GUANGXI
  • 国际专利分类:   B01J021/18, B01J023/745, B01J035/08, B01J035/10, C02F001/30, C02F001/72, C02F103/28
  • 专利详细信息:   CN110586097-A 20 Dec 2019 B01J-023/745 202006 Pages: 12 Chinese
  • 申请详细信息:   CN110586097-A CN10827780 03 Sep 2019
  • 优先权号:   CN10827780

▎ 摘  要

NOVELTY - Magnetic ferric oxide/graphene oxide nanocomposite Fenton-like catalytic materials comprises ferric oxide with nano hollow sphere structure, and graphene oxide with a fold-like thin film structure covering the surface of the hollow sphere. USE - Magnetic ferric oxide/graphene oxide nanocomposite Fenton-like catalytic material used to papermaking wastewater, where papermaking wastewater is the effluent from a secondary biochemical pond of a paper mill, and pH range of the wastewater is below 7.0, and the dosage of hydrogen peroxide is 2.0-3.5 mole per liter (all claimed). ADVANTAGE - The magnetic ferric oxide/graphene oxide nanocomposite Fenton-like catalytic material is magnetically recyclable, has mild reaction conditions, a wide pH range, and good processing effects. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a method for preparing magnetic ferric oxide/graphene oxide nanocomposite Fenton-like catalytic material, which involves: (A) dissolving graphene oxide in ultrapure water, sonicating, and collecting the supernatant by centrifugation; (B) adding ferric trichloride hexahydrate, urea and citric acid to the supernatant, stirring, adding polyacrylic acid dropwise to the solution and mixing well; and (C) carrying out a hydrothermal reaction, and finally obtaining the magnetic triiron tetroxide/graphene nano-composite Fenton-based catalytic material through an external magnetic field separation, washing separately with water and absolute ethanol.