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  • 文献标题:   Graphene oxide quantum dot-sensitized porous titanium dioxide microsphere: Visible-light-driven photocatalyst based on energy band engineering
  • 文献类型:   Article
  • 作　　者:   ZHANG Y, QI FY, LI Y, ZHOU X, SUN HF, ZHANG W, LIU DL, SONG XM
  • 作者关键词:   graphene oxide, tio2 microsphere, quantum dot, photocatalysi
  • 出版物名称:   JOURNAL OF COLLOID INTERFACE SCIENCE
  • ISSN:   0021-9797 EI 1095-7103
  • 通讯作者地址:   Liaoning Univ
  • 被引频次:   14
  • DOI:   10.1016/j.jcis.2017.03.048
  • 出版年:   2017

▎ 摘　　要

We report a novel graphene oxide quantum dot (GOQD)-sensitized porous TiO2 microsphere for efficient photoelectric conversion. Electro-chemical analysis along with the Mott-Schottky equation reveals conductivity type and energy band structure of the two semiconductors. Based on their energy band structures, visible light-induced electrons can transfer from the p-type GOQD to the n-type TiO2. Enhanced photocurrent and photocatalytic activity in visible light further confirm the enhanced separation of electrons and holes in the nanocomposite. (C) 2017 Elsevier Inc. All rights reserved.