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

Autor: Yuntao Xia, Yanmin Jia, Weiqi Qian, Xiaoli Xu, Zheng Wu, Zichen Han, Yuanting Hong, Huilin You, Muhammad Ismail, Ge Bai, Liwei Wang
Jazyk: angličtina
Rok vydání: 2017
Předmět:
Zdroj: Metals, Vol 7, Iss 4, p 122 (2017)
Druh dokumentu: article
ISSN: 2075-4701
DOI: 10.3390/met7040122
Popis: 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.
Databáze: Directory of Open Access Journals