Hydrothermal fabrication and analysis of piezotronic-related properties of BiFeO3 nanorods

Andrea Pauline Ricasata Arazas, Chia Chen Wu, Kao-Shuo Chang

研究成果: Article

摘要

This paper reports the fabrication of vertically oriented BiFeO3 (BFO) nanorods on indium tin oxide/glass substrates through hydrothermal synthesis. Further, their piezotronic, piezophototronic, and piezophotocatalytic properties were analyzed. Various synthesis parameters were examined to modulate the morphology and alignment of BFO nanorods, including the ratios of precursors, the pH values, types of complex agents, and reaction times and temperatures. Transmission electron microscopy results demonstrated single crystallinity of the BFO nanorods. A band gap of approximately 2.3 eV was determined. The piezotronic and piezophototronic properties were observed through facile current–voltage measurement. The extended application of piezophotocatalysis under alternating external stress and visible-light irradiation, to decompose methylene blue solutions, was also ascertained. The piezophotocatalytic efficiency was improved by approximately 30% over photocatalysis in the first 30 min. Both O2 □and□·OH radicals were crucial for these activities.

原文English
頁(從 - 到)14158-14162
頁數5
期刊Ceramics International
44
發行號12
DOIs
出版狀態Published - 2018 八月 15

指紋

Nanorods
Fabrication
ITO glass
Photocatalysis
Methylene Blue
Hydrothermal synthesis
Energy gap
Irradiation
Transmission electron microscopy
Substrates
Temperature

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Ceramics and Composites
  • Process Chemistry and Technology
  • Surfaces, Coatings and Films
  • Materials Chemistry

引用此文

Arazas, Andrea Pauline Ricasata ; Wu, Chia Chen ; Chang, Kao-Shuo. / Hydrothermal fabrication and analysis of piezotronic-related properties of BiFeO3 nanorods. 於: Ceramics International. 2018 ; 卷 44, 編號 12. 頁 14158-14162.
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abstract = "This paper reports the fabrication of vertically oriented BiFeO3 (BFO) nanorods on indium tin oxide/glass substrates through hydrothermal synthesis. Further, their piezotronic, piezophototronic, and piezophotocatalytic properties were analyzed. Various synthesis parameters were examined to modulate the morphology and alignment of BFO nanorods, including the ratios of precursors, the pH values, types of complex agents, and reaction times and temperatures. Transmission electron microscopy results demonstrated single crystallinity of the BFO nanorods. A band gap of approximately 2.3 eV was determined. The piezotronic and piezophototronic properties were observed through facile current–voltage measurement. The extended application of piezophotocatalysis under alternating external stress and visible-light irradiation, to decompose methylene blue solutions, was also ascertained. The piezophotocatalytic efficiency was improved by approximately 30{\%} over photocatalysis in the first 30 min. Both O2 −□and□·OH radicals were crucial for these activities.",
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Hydrothermal fabrication and analysis of piezotronic-related properties of BiFeO3 nanorods. / Arazas, Andrea Pauline Ricasata; Wu, Chia Chen; Chang, Kao-Shuo.

於: Ceramics International, 卷 44, 編號 12, 15.08.2018, p. 14158-14162.

研究成果: Article

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AB - This paper reports the fabrication of vertically oriented BiFeO3 (BFO) nanorods on indium tin oxide/glass substrates through hydrothermal synthesis. Further, their piezotronic, piezophototronic, and piezophotocatalytic properties were analyzed. Various synthesis parameters were examined to modulate the morphology and alignment of BFO nanorods, including the ratios of precursors, the pH values, types of complex agents, and reaction times and temperatures. Transmission electron microscopy results demonstrated single crystallinity of the BFO nanorods. A band gap of approximately 2.3 eV was determined. The piezotronic and piezophototronic properties were observed through facile current–voltage measurement. The extended application of piezophotocatalysis under alternating external stress and visible-light irradiation, to decompose methylene blue solutions, was also ascertained. The piezophotocatalytic efficiency was improved by approximately 30% over photocatalysis in the first 30 min. Both O2 −□and□·OH radicals were crucial for these activities.

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