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

By Huilin You, Xinxiu Ma, Zheng Wu, L. Fei, Xiaoqiu Chen, Jie Yang, Yongsheng Liu, Yanmin Jia, Huamei Li, Feifei Wang and 1 more. Nano Energy, 2018

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Abstract 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.

Subfields: Biomedical Engineering, Materials Chemistry

View Paper: https://www.semanticscholar.org/paper/3d8afa620a0b64425470a749a0e9eb867ff3a5e1