Piezoelectrically/pyroelectrically-driven vibration/cold-hot energy harvesting for mechano-/pyro- bi-catalytic dye decomposition of NaNbO3 nanofibers

Huilin You, Xinxiu Ma, Zheng Wu, Linfeng Fei, Xiaoqiu Chen, Jie Yang, Yongsheng Liu, Yanmin Jia, Huamei Li, Feifei Wang, Haitao Huang

Research output: Journal article publicationJournal articleAcademic researchpeer-review

84 Citations (Scopus)


In this work, a high efficient mechano-/pyro- bi-catalysis for dye wastewater decomposition is found in the hydrothermally-synthesized NaNbO3 nanofibers through piezoelectrically and pyroelectrically harvesting vibration and cold-hot energy. In response to vibration together with 15–50 °C cold-hot cycles, the bi-catalytic decomposition ratio of NaNbO3 nanofibers can be up to 86.5%, which is higher than that of the pyro-catalysis of ~ 63.3% or the mechano-catalysis of ~ 75.8%. Such mechano-/pyro- bi-catalysis of NaNbO3 nanofibers possesses the advantages of high efficiency, environmental benignity and being easily scaled up. Therefore, NaNbO3 may become a potential candidate for mechano-/pyro- bi-catalysis through utilizing ubiquitous vibration and thermal energy.

Original languageEnglish
Pages (from-to)351-359
Number of pages9
JournalNano Energy
Publication statusPublished - Oct 2018


  • Bi-catalysis
  • NaNbO
  • Piezoelectric effect
  • Pyroelectric effect

ASJC Scopus subject areas

  • Renewable Energy, Sustainability and the Environment
  • Materials Science(all)
  • Electrical and Electronic Engineering

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