• 专利标题:   Preparing cellulose-based catalytic membrane for treating dye wastewater by adding graphene oxide into ethylene glycol, adding cotton pulp cellulose into solvent system, and adding composite material into cellulose solution.
  • 专利号:   CN110302837-A
  • 发明人:   ZHANG S, LI H, HOU C, ZHAO M, HUA C, CHEN W
  • 专利权人:   UNIV SHAANXI SCI TECHNOLOGY
  • 国际专利分类:   B01J031/22, B01J031/28, B01J035/06, B01J037/06, B01J037/34, C02F001/72, C02F101/30, C02F101/36, C02F101/38
  • 专利详细信息:   CN110302837-A 08 Oct 2019 B01J-031/22 201988 Pages: 7 Chinese
  • 申请详细信息:   CN110302837-A CN10654807 19 Jul 2019
  • 优先权号:   CN10654807

▎ 摘  要

NOVELTY - Preparing cellulose-based catalytic membrane for treating dye wastewater by advanced oxidation process involves: (a) adding graphene oxide (GO) into ethylene glycol, then adding ferric chloride hexahydrate (FeCl3.6H2O) and sodium acetate, uniformly stirring, reacting the mixed solution at 150-170oC for 4-10 hours, washing and drying after the reaction is ended to obtain iron(II, III) oxide (Fe3O4)/RGO nano composite material; (b) respectively dissolving benzimidazole and cobalt(II) nitrate hexahydrate (Co(NO3)2.6H2O) in N,N-dimethylformamide, mixing, adding the Fe3O4/RGO nanocomposite into the mixed solution, uniformly stirring, and adding ammonia water, washing and drying to obtain the ZIF-9-at-Fe3O4/RGO composite material; and (c) adding cotton pulp cellulose into solvent system to prepare cellulose solution, adding ZIP-9-at-Fe3O4/RGO composite material into the cellulose solution, and uniformly mixing; pouring the dispersion liquid into a surface vessel; and drying. USE - The method is useful for preparing cellulose-based catalytic membrane for treating dye wastewater by advanced oxidation process (claimed). ADVANTAGE - Tthe composite catalytic membrane with different additive amounts of the composite material has very high catalytic activity with 96% of methylene blue can be degraded within 10 minutes. The catalytic membrane can be easily separated from the reaction system, and recycling of the catalyst can be facilitated. DETAILED DESCRIPTION - Preparing cellulose-based catalytic membrane for treating dye wastewater by advanced oxidation process involves: (a) adding graphene oxide (GO) into ethylene glycol, then adding ferric chloride hexahydrate (FeCl3.6H2O) and sodium acetate, uniformly stirring to obtain a mixed solution A, reacting the mixed solution at 150-170oC for 4-10 hours, washing and drying after the reaction is ended to obtain iron(II, III) oxide (Fe3O4)/rGO nano composite material; (b) respectively dissolving benzimidazole and cobalt(II) nitrate hexahydrate (Co(NO3)2.6H2O) in N,N-dimethylformamide, mixing to obtain mixed solution B, adding the Fe3O4/RGO nanocomposite into the mixed solution B, uniformly stirring, and adding ammonia water after stirring for 1-2 hours, washing and drying to obtain the ZIF-9-at-Fe3O4/RGO composite material, where the ratio of benzimidazole, Co(NO3)2. 6H2O and Fe3O4/RGO is (5-10) mmol:(5-10) mmol:(3-5) g; and (c) adding cotton pulp cellulose into a solvent system to prepare a cellulose solution, adding ZIP-9-at-Fe3O4/RGO composite material into the cellulose solution, and uniformly mixing to obtain a dispersion liquid, where the ZIF-9-at-Fe3O4/RGO composite material accounts for 25-35 mass% of the mass of the cotton pulp cellulose; pouring the dispersion liquid into a surface vessel for heat preservation and then generating a membrane; and drying to obtain a cellulose-based catalytic membrane for treating dye wastewater by advanced oxidation process. An INDEPENDENT CLAIM is included for a cellulose-based catalytic membrane prepared by using above, and used for treating dye wastewater by advanced oxidation process.