• 专利标题:   High-efficiency silicon-molybdenum co-doped titanium dioxide/redox graphene composite self-cleaning film comprises molybdenum, silicon dioxide and graphene oxide.
  • 专利号:   CN111589439-A
  • 发明人:   HE H
  • 专利权人:   UNIV SHAANXI SCI TECHNOLOGY
  • 国际专利分类:   B01J023/28, B01J035/06
  • 专利详细信息:   CN111589439-A 28 Aug 2020 B01J-023/28 202077 Pages: 12 Chinese
  • 申请详细信息:   CN111589439-A CN10487419 02 Jun 2020
  • 优先权号:   CN10487419

▎ 摘  要

NOVELTY - A high-efficiency silicon-molybdenum co-doped titanium dioxide/redox graphene composite self-cleaning film comprises 0-1.0 atomic% (excluding 0) molybdenum, 30 atomic% silicon dioxide and 0-0.3 wt.% (excluding 0) graphene oxide with respect to the total amount of titanium dioxide and silicon dioxide. USE - High-efficiency silicon-molybdenum co-doped titanium dioxide/redox graphene composite self-cleaning film. ADVANTAGE - The high-efficiency composite self-cleaning film has excellent electrical conductivity, light-induced superhydrophilicity, light transmission performance, and photocatalytic property compared to pure titanium dioxide film. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for preparation of the high-efficiency silicon molybdenum co-doped titanium dioxide/redox graphene composite self-cleaning film, which involves adding 1.19 g tetrabutyl titanate, 0.312 g ethyl orthosilicate, 0-0.0088 g ammonium paramolybdate, 5 ml of 1 g/ml graphene oxide aqueous solution to mixed solvent comprising absolute ethanol, water, ethylene glycol, propylene glycol, acetylacetone and glycerol, stirring for 5-30 minutes to obtain precursor solution, adding 1.0 ml 35% concentrated hydrochloric acid to 100 ml precursor solution, stirring for 5-30 minutes until the solution is uniform and transparent, coating solution on the surface of the clean substrate, drying at 150-200 degrees C for 0.5 hour, repeating the coating 5-15 times and sintering at 450 degrees C for 1.0 hour, where the molar ratio of silicon dioxide to titanium dioxide and silicon dioxide is 0.3, the mass ratio of graphene oxide to 0-0.0030 (excluding 0) and the concentration of titanium and silicon ions in precursor solution is 0.05 mol/L.