稀土Nd改性纳米TiO2-NTs/SnO2-Sb电极的制备, 结构及性 能

Translated title of the contribution: Preparation, structure and performance of nano-scale Nd doped SnO2-Sb electrode based on TiO2 nanotubes

Lisha Yang, Junfeng Liu, Linlin Huang, Jiayu Guo, Yujie Feng, Bruce Logan

Research output: Contribution to journalArticle

Abstract

Nd-doped TiO2-NTs/SnO2-Sb electrode was successfully fabricated by solvothermal synthesis approach. Phenol degradation test showed that the electrocatalytic property was affected by Nd doping content. Compare with the control electrode, the degradation rate of phenol and TOC were increased 60% and 52% on the one with Nd3%. The morphology and crystals structure of the catalytic coating were determined through SEM and XRD, the results showed that an optimum Nd content level could gain a denser surface structure and a smaller grain size than the control sample. The analysis of XPS indicated that introducing Nd could reduce the lattice oxygen (Olat), which was testified from the fact of lower banding energy of Sn displayed on Nd(3%)-doped electrode. In addition, the Sb on the electrode (Nd3%) surface reduced, and the adsorbed oxygen species (Oads) increased, which was 1.6 times as much as that on the control. The results from EPR further verified the mechanism of performance enhancement, introducing Nd could increase the concentration of oxygen vacancy and thus change chemical environment of the each element on the electrode surface, which greatly raised the oxygen evolution potential and strengthened the generation ability of •OH to destroy organic matters.

Original languageChinese
Pages (from-to)2161-2169
Number of pages9
JournalChinese Journal of Environmental Engineering
Volume12
Issue number8
DOIs
StatePublished - Aug 5 2018

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All Science Journal Classification (ASJC) codes

  • Environmental Engineering
  • Environmental Chemistry
  • Water Science and Technology
  • Waste Management and Disposal
  • Pollution

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