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Metals 2017, 7(4), 122; doi:10.3390/met7040122

Pyroelectrically Induced Pyro-Electro-Chemical Catalytic Activity of BaTiO3 Nanofibers under Room-Temperature Cold–Hot Cycle Excitations

1
Department of Physics, Zhejiang Normal University, Jinhua 321004, China
2
College of Geography and Environmental Sciences, Zhejiang Normal University, Jinhua 321004, China
3
Department of Chemistry, Zhejiang Normal University, Jinhua 321004, China
*
Authors to whom correspondence should be addressed.
Academic Editor: Jung-Hyuk Koh
Received: 1 March 2017 / Revised: 24 March 2017 / Accepted: 27 March 2017 / Published: 1 April 2017
(This article belongs to the Special Issue Piezoelectric Materials and Applications)
View Full-Text   |   Download PDF [3390 KB, uploaded 19 April 2017]   |  

Abstract

A pyro-electro-chemical catalytic dye decomposition using lead-free BaTiO3 nanofibers was realized under room-temperature cold–hot cycle excitation (30–47 °C) with a high Rhodamine B (RhB) decomposition efficiency ~99%, which should be ascribed to the product of pyro-electric effect and electrochemical redox reaction. Furthermore, the existence of intermediate product of hydroxyl radical in pyro-electro-chemical catalytic process was also observed. There is no significant decrease in pyro-electro-chemical catalysis activity after being recycled five times. The pyro-electrically induced pyro-electro-chemical catalysis provides a high-efficient, reusable and environmentally friendly technology to remove organic pollutants from water. View Full-Text
Keywords: pyroelectric effect; BaTiO3 nanofibers; pyro-electro-chemical catalysis; dye decomposition pyroelectric effect; BaTiO3 nanofibers; pyro-electro-chemical catalysis; dye decomposition
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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Xia, Y.; Jia, Y.; Qian, W.; Xu, X.; Wu, Z.; Han, Z.; Hong, Y.; You, H.; Ismail, M.; Bai, G.; Wang, L. Pyroelectrically Induced Pyro-Electro-Chemical Catalytic Activity of BaTiO3 Nanofibers under Room-Temperature Cold–Hot Cycle Excitations. Metals 2017, 7, 122.

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