• 专利标题:   Preparing super-hydrophobic wood with excellent electrothermal and photothermal effects, comprises e.g. placing wood in mixed solution of sodium hydroxide and sodium sulfite, heating, to reduce graphene oxide and graft sulfhydryl groups, freeze-drying, and curing in ultraviolet curing oven.
  • 专利号:   CN115068979-A
  • 发明人:   WU H, CHEN R, ZHANG M, LI K, SU X, CHEN Z, WU W
  • 专利权人:   UNIV DONGGUAN TECHNOLOGY
  • 国际专利分类:   B01D017/022
  • 专利详细信息:   CN115068979-A 20 Sep 2022 B01D-017/022 202201 Chinese
  • 申请详细信息:   CN115068979-A CN10646787 09 Jun 2022
  • 优先权号:   CN10646787

▎ 摘  要

NOVELTY - Preparing super-hydrophobic wood with excellent electrothermal and photothermal effects, comprises (1) placing the wood in a mixed solution of sodium hydroxide and sodium sulfite, heating at 80-100℃ for 6-12 hours, placing in a hydrogen peroxide solution, heating at 80-100℃ for 0.5-2 hours, (2) placing the wood treated in graphene oxide solution, under vacuum condition, performing the load of graphene oxide, blast drying, repeating this process 4-8 times, obtaining the wood saturated with graphene oxide, soaking the wood saturated with graphene oxide in thiourea solution, heating at 60-100℃ for 2-8 hours to reduce graphene oxide and graft sulfhydryl groups, and freeze-drying, and (3) placing the wood in a vinyl-terminated polydimethylsiloxane solution, taking out and curing in an ultraviolet curing oven to obtain an excellent electric heating, and photothermal effect of superhydrophobic wood. USE - The method is useful for preparing super-hydrophobic wood with excellent electro-thermal effect which is used for separating high viscosity oil and in the separation of crude oil and sewage (claimed). ADVANTAGE - The method provides super-hydrophobic wood with excellent electric heating and photo-thermal effect. The wood has three-dimensional porous structure and chemical structure of layer-by-layer bonding. It exhibits stable super- hydrophobic performance and excellent electro-thermally and photothermal effects. It can be quickly heated under the application of voltage or illumination to reduce the viscosity of the crude oil and enhance fluidity and realizes high-efficient and fast separation of crude oil. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for a super-hydrophobic wood with excellent electro-thermal effect and photo-thermal effect, obtained by the method as mentioned above.