Strong pyro-catalysis of pyroelectric BiFeO3 nanoparticles under a room-temperature cold–hot alternation. Issue 13 (16th March 2016)

• Record Type: Journal Article
• Authors: Wu, Jiang; Mao, Wujian; Wu, Zheng; Xu, Xiaoli; You, Huilin; Xue, A'Xi; Jia, Yanmin
• Is Part Of: Nanoscale. Volume 8:Issue 13(2016)
• Page Start: 7343
• Page End: 7350
• Publication Date: 2016-03-16
• Subjects: Nanoscience -- Periodicals; Nanotechnology -- Periodicals; 620.505
• DOI: 10.1039/c6nr00972g
• Languages: English
• ISSNs: 2040-3364

Abstract

Abstract : Pyro-catalytic dye degradation was achieved using pyroelectric BiFeO3 nanoparticles between 27 °C and 38 °C. 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.