• 专利标题:   Preparing carbon nanotube-graphene material useful for supporting nano-cuprous oxide particles for photocatalysis, comprises e.g. pre-treating carbon nanotube, graphene, adding carbon nano tube in mixed solution of concentrated nitric acid.
  • 专利号:   CN106622236-A, CN106622236-B
  • 发明人:   BAO R, LIU L, YI J, LI C, LIU Y, LI F, TAO J, YOU X, TAN S
  • 专利权人:   UNIV KUNMING SCI TECHNOLOGY, UNIV KUNMING SCI TECHNOLOGY
  • 国际专利分类:   B01J023/72
  • 专利详细信息:   CN106622236-A 10 May 2017 B01J-023/72 201750 Pages: 13 Chinese
  • 申请详细信息:   CN106622236-A CN10002327 03 Jan 2017
  • 优先权号:   CN10002327

▎ 摘  要

NOVELTY - Preparing carbon nanotube-graphene material comprises e.g. pre-treating carbon nanotube and graphene, adding carbon nano tube in mixed solution of concentrated nitric acid, concentrated sulfuric acid, heating in water bath at 30-80 degrees C and ultrasonically dispersing for 10-180 minutes, filtering after washing to neutral, drying to obtain the pre-treated carbon nano tube, adding graphite into de-ionized water, heating in water bath at 60-80 degrees C for 10-300 minutes, adding hydrazine hydrate, allowing the reactant to be neutral by methanol, de-ionized water after many times of washing and freezing. USE - The method is useful for preparing carbon nanotube-graphene material useful for supporting nano-cuprous oxide particles for photocatalysis (claimed). DETAILED DESCRIPTION - Preparing carbon nanotube-graphene material pre-treating carbon nanotube and graphene, adding carbon nano tube in the mixed solution of concentrated nitric acid and concentrated sulfuric acid, heating in water bath at 30-80 degrees C and ultrasonically dispersing for 10-180 minutes, filtering after washing to neutral, drying to obtain the pre-treated carbon nano tube, adding graphite into de-ionized water, heating in water bath at 60-80 degrees C for 10-300 minutes, adding hydrazine hydrate,allowing the reactant to be neutral by methanol and de-ionized water after many times of washing, freezing and drying to obtain the graphene sheet; (ii) adding carbon nano-tube and graphite in two container filled with deionized water in the ratio 1:40-60, heating in water bath for 30-50 degrees C, ultrasonically dispersing for 1-10 hours, slowly dropping carbon nano tube solution to graphene oxide solution, where the mass ratio of the carbon nano-tube and graphite alkene is 5:1-5:3, continuing ultrasonic dispersion for 2-4 hours to obtain the carbon nano tube-graphene oxide mixed solution, adding 3-30% organic binder, allowing to stand for 8-24 hours to make fully compatible with water; (iii) stirring the organic binder solution at a temperature of 70-80 degrees C using magnetic stirrer, and adding carbon nano-tube and graphene oxide mixed solution obtained in the step (ii) into the organic binder solution to obtain the uniformly mixed carbon nano-tube and graphite alkene-organic caking agent, adding prepared carbon nano-tube-graphene organic adhesive slurry slowly into graphite mold, cooking and stirring continuously in the process to obtain 0.5-3% carbon nanometre tube-graphene, placing in the freeze dryer for freeze-drying for 8 to 12h, taking out the sample after freezing and drying to obtain the carbon nano tube-graphene-organic binder skeleton; (iv) heating the materials obtained in the step (iii) in a heat furnace at 400-600 degrees C, removing the organic binder in the framework in a flowing atmosphere to obtain the carbon nano tube/graphene carrier; (v) uniformly stirring 0.1-10% copper salt solution as the precursor, pouring into the atomizer, adding carbon nano-tube and graphene carrier fixing the tubular furnace in low temperature area of 150-250 degrees C and high-temperature area of the tubular furnace at 400-500 degrees C, opening the atomizer atomization mode and precursor liquid fog drop atomization generating region by high temperature thermal decomposition after generating cuprous oxide, depositing a nucleation and growth on to carrier of low temperature area to obtain nanometre cuprous oxide particles of carbon nano-tube and graphene composition photocatalyst.