• 专利标题:   Photocatalytic reduction and oxidation of graphene by adding deionized water to oxidized graphite, dispersing by ultrasonic wave, uniformly dispersing quadrangular zinc oxide to oxidized graphene water solution, and irradiating with UV ray.
  • 专利号:   CN101966989-A, CN101966989-B
  • 发明人:   ZHANG Q, WANG H, LI Y, ZHANG Y
  • 专利权人:   UNIV DONGHUA
  • 国际专利分类:   C01B031/04
  • 专利详细信息:   CN101966989-A 09 Feb 2011 C01B-031/04 201136 Pages: 7 Chinese
  • 申请详细信息:   CN101966989-A CN10548837 18 Nov 2010
  • 优先权号:   CN10548837

▎ 摘  要

NOVELTY - Photocatalytic reduction and oxidation of graphene by quadrangular zinc oxide includes adding deionized water to oxidized graphite; dispersing the solution by ultrasonic wave; separating out large particles; obtaining brown oxidized graphene water solution; uniformly dispersing quadrangular zinc oxide to oxidized graphene water solution; magnetically stirring the mixed solution; filling nitrogen; using UV ray to irradiate the solution; washing with hydrochloric acid; filtering the solution to remove quadrangular zinc oxide; washing the product; and separating and drying the product. USE - Photocatalytic reduction and oxidation of graphene by quadrangular zinc oxide (claimed). ADVANTAGE - The method is simple; has low material cost; adds no harmful reagent; provides reduced product with large area and performance, which is the same as graphite; and recovers electrical conductivity. DETAILED DESCRIPTION - Photocatalytic reduction and oxidation of graphene by quadrangular zinc oxide comprises: (A) weighing oxidized graphite, adding deionized water, dispersing the solution by ultrasonic wave, separating out large particles, and obtaining brown oxidized graphene water solution; and (B) weighing quadrangular zinc oxide; uniformly dispersing the quadrangular zinc oxide to the oxidized graphene water solution, where mass ratio of quadrangular zinc oxide to oxidized graphene is 1:1-3:1; magnetically stirring the mixed solution; filling nitrogen; using UV ray to irradiate the solution for 2-5 hours, where after reacting, the solution color becomes black; washing with hydrochloric acid (HCl); filtering the solution to remove quadrangular zinc oxide; using deionized water and ethanol to wash the product; and separating and drying the product.