TY - JOUR
T1 - Synthesis route matters
T2 - Interrogating the structural, morphological, optical, surface, photoelectrochemical and photocatalytic properties of lanthanum ferrite perovskite
AU - Nkwachukwu, Oluchi V.
AU - Ndima, Gugulethu P.
AU - Arotiba, Omotayo A.
N1 - Publisher Copyright:
© 2025 The Authors
PY - 2025/7
Y1 - 2025/7
N2 - The influence of sol-gel, solid state, and hydrothermal synthesis methods on the properties and photocatalytic application of lanthanum ferrite (LaFeO3, LFO) perovskite material is reported. The LFO from each synthesis route was characterized with XRD, XPS, FTIR, Raman spectroscopy, FESEM, HRTEM, and Brunauer-Emmeth-Teller (BET) analysis. The hydrothermal LFO possessed the most improved light-harvesting capability and charge recombination suppression as shown by UV–vis–DRS and photoluminescence studies. The hydrothermal LFO generated the highest photocurrent density suggesting the highest current mobility. Lower charge transfer resistance and improved photodegradation reaction kinetic were observed at the hydrothermal LFO photoanode. The extent of tetracycline mineralization, measured by total organic carbon (TOC) analysis for sol-gel, solid state, and hydrothermal routes were 62.5, 55.0, and 77.5 % respectively. LCMS provided information on the degradation and fragmentation patterns of the photocatalytic degradation process. This study shows that the synthesis route can affect the overall performance of LaFeO3 perovskite oxide.
AB - The influence of sol-gel, solid state, and hydrothermal synthesis methods on the properties and photocatalytic application of lanthanum ferrite (LaFeO3, LFO) perovskite material is reported. The LFO from each synthesis route was characterized with XRD, XPS, FTIR, Raman spectroscopy, FESEM, HRTEM, and Brunauer-Emmeth-Teller (BET) analysis. The hydrothermal LFO possessed the most improved light-harvesting capability and charge recombination suppression as shown by UV–vis–DRS and photoluminescence studies. The hydrothermal LFO generated the highest photocurrent density suggesting the highest current mobility. Lower charge transfer resistance and improved photodegradation reaction kinetic were observed at the hydrothermal LFO photoanode. The extent of tetracycline mineralization, measured by total organic carbon (TOC) analysis for sol-gel, solid state, and hydrothermal routes were 62.5, 55.0, and 77.5 % respectively. LCMS provided information on the degradation and fragmentation patterns of the photocatalytic degradation process. This study shows that the synthesis route can affect the overall performance of LaFeO3 perovskite oxide.
KW - Hydrothermal synthesis
KW - Lanthanum ferrite
KW - Photocatalytic degradation
KW - Sol-gel synthesis
KW - Solid state synthesis
KW - Wastewater
UR - https://www.scopus.com/pages/publications/105009356513
U2 - 10.1016/j.nxmate.2025.100879
DO - 10.1016/j.nxmate.2025.100879
M3 - Article
AN - SCOPUS:105009356513
SN - 2949-8228
VL - 8
JO - Next Materials
JF - Next Materials
M1 - 100879
ER -