• 专利标题:   Bismuth iodide oxide/ferrosoferric oxide-doped graphene oxide photocatalyst used for degrading 2,4-dinitrophenol in e.g. wastewater treatment, comprises bismuth iodide oxide/ferrosoferric oxide photocatalyst immobilized on graphene oxide.
  • 专利号:   IN201811033394-A
  • 发明人:   SINGH P, SAINI A, RAIZADA P, SUDHAIK A, SHARMA R
  • 专利权人:   UNIV SHOOLINI
  • 国际专利分类:   B01F003/04, B01J035/00, C02F001/32, C02F001/72, C07C001/02
  • 专利详细信息:   IN201811033394-A 14 Aug 2020 B01J-035/00 202072 Pages: 23 English
  • 申请详细信息:   IN201811033394-A IN11033394 05 Sep 2018
  • 优先权号:   IN11033394

▎ 摘  要

NOVELTY - A bismuth iodide oxide/ferrosoferric oxide (BiOI/Fe3O4)-doped graphene oxide (GO) photocatalyst comprises a BiOI/Fe3O4 photocatalyst immobilized on graphene oxide (GO). USE - Bismuth iodide oxide/ferrosoferric oxide-doped graphene oxide photocatalyst used as magnetically separable photocatalyst in slurry-type photoreactor for degrading 2,4-dinitrophenol and rhodamine dye in wastewater treatment. ADVANTAGE - The bismuth iodide oxide/ferrosoferric oxide-doped graphene oxide photocatalyst has excellent photocatalytic activity for the DNP degradation under visible light, stability, and recycle efficiency for ten catalytic cycles. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for preparation of the photocatalyst, which involves (a) ultrasonically processing 1.0 g GO for 30 minutes in 100 mL distilled water to obtain well dispersed GO suspension, (b) adding 1.0 g bismuth(III) nitrate and 0.50 mg Fe3O4 to GO solution with magnetic stirring for 10 minutes, (c) adding 0.37 g potassium iodide and 0.35 g sodium acetate to reaction mixture with stirring for 10 minutes at room temperature followed by ultrasonically processing for 30 minutes and aging for 90 minutes, and (d) obtaining precipitates by separating using magnets, washing with water and ethanol for three times, drying the separated precipitates at 60 degrees C overnight to obtain BiOI/Fe3O4-doped GO.