• 文献标题:   Hypothermia-controlled Co-precipitation route to deposit well-dispersed beta-Bi2O3 nanospheres on polymorphic graphene flakes
  • 文献类型:   Article
  • 作  者:   CAO SY, CHEN CS, XIE XD, ZENG B, NING XT, LIU TG, CHEN XH, MENG XM, XIAO Y
  • 作者关键词:   betabi2o3 nanosphere, polymorphic graphene, photocatalytic, hypothermia step
  • 出版物名称:   VACUUM
  • ISSN:   0042-207X
  • 通讯作者地址:   Changsha Univ Sci Technol
  • 被引频次:   13
  • DOI:   10.1016/j.vacuum.2013.10.025
  • 出版年:   2014

▎ 摘  要

A versatile and batch-fabrication approach was developed to deposit the mono-dispersed and stable beta-bismuth oxide (beta-Bi2O3) nanospheres on graphene sheets by electrolyte-assisted co-precipitation method appended with a hypothermia step. The scanning electron microscope (SEM) results showed that well-distributed beta-Bi2O3 nanospheres with an average size of about 20 nm were uniformly loaded on polymorphic graphene including porous, multilayered, platy and frizzy 3D structures. Activity of Bi2O3 nanospheres promoted nearly by a factor of two by graphene for RhB was discovered and the reliable stability of beta-Bi2O3 was verified in further test. The homogeneity of Bi2O3 nanospheres on graphene was mainly attributed to slow nucleation under 4 degrees C and the help of organic electrolyte. The excellent activity of GR/beta-Bi2O3 depended on graphene for its special electric structure and conduct ability. (C) 2013 Elsevier Ltd. All rights reserved.