Pyroelectrically induced pyro‐electro‐chemical catalytic activity of batio3 nanofibers under room‐ temperature cold–hot cycle excitations

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.