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Nanosphere of Pb-modified bismuth-based borate photocatalysts

  • Jie Yang
  • , Xiaolong Pan
  • , Ruge Quhe*
  • , Ke Bi
  • , Sen Lin
  • , Ce Liang
  • , Chongchong Yao
  • , Yinxiao Du
  • , Jun Liu
  • , Dongyu Fan
  • , Hujiang Yang
  • , Yonggang Wang
  • , Ming Lei
  • *Corresponding author for this work
  • Beijing University of Posts and Telecommunications
  • Zhengzhou University of Aeronautics
  • School of Materials Science and Engineering

Research output: Contribution to journalArticlepeer-review

Abstract

Bi2-xPbxO2(BO2OH) nanospheres are synthesised by means of one-step hydrothermal route by embedding Pb2+ to Bi2O2+2 layers. The obtained materials are characterised by X-ray diffraction, ultraviolet (UV)-vis diffuse reflectance, scanning electron microscope, transmission electron microscopy and X-ray photoelectron spectroscopy. Photocatalytic activity is measured by decomposition of rhodamine B under UV-light irradiation. Photocatalytic performance is boosted after inducing Pb impurity into pure Bi2O2(BO2OH) lattice, because the impurity energy level could capture the holes and restrain the recombination of electron-hole pairs. Electronic properties of the fabricated nanospheres are investigated via first-principle calculations. The highest photocatalytic performance is found in the modified Bi2O2(BO2OH) with a doping concentration of Bi/Pb = 1.5/0.5, which outperformed the pure even the commercial P25.

Original languageEnglish
Pages (from-to)430-434
Number of pages5
JournalMicro and Nano Letters
Volume12
Issue number7
DOIs
Publication statusPublished - 1 Jul 2017
Externally publishedYes

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