Issue 13, 2016

Strong pyro-catalysis of pyroelectric BiFeO3 nanoparticles under a room-temperature cold–hot alternation

Abstract

A strong pyro-catalytic dye degradation with an ultrahigh degradation efficiency (>99%) in hydrothermally synthesized pyroelectric BiFeO3 nanoparticles was achieved under a room-temperature cold–hot alternating excitation (between 27 °C to 38 °C). The pyro-catalysis originated from a combination of the pyroelectric effect and the electrochemical oxidation–reduction reaction. The intermediate products (hydroxyl radicals and superoxide radicals) of pyro-electro-catalysis were observed. Pyro-catalysis provides a highly efficient and reusable dye wastewater decomposition technology through utilizing environmental day–night temperature variation.

Graphical abstract: Strong pyro-catalysis of pyroelectric BiFeO3 nanoparticles under a room-temperature cold–hot alternation

Article information

Article type
Paper
Submitted
02 Feb 2016
Accepted
02 Mar 2016
First published
03 Mar 2016

Nanoscale, 2016,8, 7343-7350

Strong pyro-catalysis of pyroelectric BiFeO3 nanoparticles under a room-temperature cold–hot alternation

J. Wu, W. Mao, Z. Wu, X. Xu, H. You, A. Xue and Y. Jia, Nanoscale, 2016, 8, 7343 DOI: 10.1039/C6NR00972G

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