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

Metals

Zheng Wu¹  Zichen Han¹  Ge Bai²  Liwei Wang²  Yanmin Jia³  Huilin You³  Weiqi Qian³  Yuntao Xia³  Xiaoli Xu³  Muhammad Ismail³  Yuanting Hong³ 

[1] College of Geography and Environmental Sciences, Zhejiang Normal University, Jinhua 321004, China;Department of Chemistry, Zhejiang Normal University, Jinhua 321004, China;Department of Physics, Zhejiang Normal University, Jinhua 321004, China;

关键词: pyroelectric effect;    BaTiO3 nanofibers;    pyro-electro-chemical catalysis;    dye decomposition;   

DOI  :  10.3390/met7040122

来源: DOAJ

【 摘 要 】

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.

【 授权许可】

Unknown