Ultrafast microwave-assisted hydrothermal synthesis and photocatalytic behaviour of ferroelectric Fe 3+ -doped BaTiO 3 nanoparticles under simulated sunlight
作者: I.C. AmaechiA. Hadj YoussefG. KolhatkarD. RawachC. Gomez-YañezJ.P. ClaverieS. SunA. Ruediger
作者单位: 1Institut National de la Recherche Scientifique, Centre Énergie, Matériaux & Télécommunications, 1650 Boulevard Lionel-Boulet, Varennes, Québec J3X 1S2, Canada
2Département de Chimie, Faculté des Sciences, Université de Sherbrooke, 2500 Boulevard de l’Université, Sherbrooke, Québec J1K 2R1, Canada
3Departamento de Ingeniería en Metalurgia y Materiales, Instituto Politécnico Nacional, Zacatenco 07738, Mexico
刊名: Catalysis Today, 2019
来源数据库: Elsevier Journal
DOI: 10.1016/j.cattod.2019.07.021
关键词: FerroelectricsFe-doped BaTiO 3Bulk photovoltaic effect and photoelectrochemical
原始语种摘要: Abstract(#br)We report on the synthesis of polycrystalline Fe-doped BaTiO 3 ferroelectric nanopowder that exhibits high visible light photocatalytic activity. The ferroelectric Fe-doped BaTiO 3 samples with nominal Fe contents ranging from 2 to 8 at% are prepared by fast microwave-assisted hydrothermal synthesis. All the doped ferroelectrics exhibit enhanced light harvesting properties due to the charge transfer center of Fe being associated to strong absorption in the visible region. Also, the bulk photovoltaic effect arising from net shift current in the non-centrosymmetric crystal, provides an additional driving force to charge carrier separation. While the best photocatalytic activity is obtained with the 2 at% Fe 3+ -doped BaTiO 3 ferroelectric, the more heavily doped systems show a...
全文获取路径: Elsevier  (合作)
影响因子:2.98 (2012)

  • hydrothermal 热液的
  • ferroelectric 铁电体
  • doped 掺杂(了)的掺了添加剂的
  • assisted 辅助的
  • light 
  • visible 看得见的
  • photovoltaic 光致电压
  • crystal 晶体
  • charge 电荷
  • microwave 微波