TY - JOUR A1 - Huang, Chao-Wei A1 - Hsu, Shu-Yu A1 - Lin, Jun-Han A1 - Jhou, Yun A1 - Chen, Wei-Yu A1 - Lin, Kun-Yi Andrew A1 - Lin, Yu-Tang A1 - Nguyen, Van-Huy T1 - Solar-light-driven LaFexNi1−xO3 perovskite oxides for photocatalytic Fenton-like reaction to degrade organic pollutants JF - Beilstein Journal of Nanotechnology PY - 2022/// VL - 13 SP - 882 EP - 895 SN - 2190-4286 DO - 10.3762/bjnano.13.79 PB - Beilstein-Institut JA - Beilstein J. Nanotechnol. UR - https://doi.org/10.3762/bjnano.13.79 KW - LaFeO3 KW - LaNiO3 KW - methylene blue (MB) KW - perovskite oxides KW - photocatalyst N2 - LaFexNi1−xO3 perovskite oxides were prepared by the sol–gel method under various conditions, including different pH values (pH 0 and pH 7) and different calcination temperatures (500–800 °C) as well as different Fe/Ni ratios (1/9, 3/7, 5/5, 7/3, 9/1). The samples were examined by XRD, DRS, BET, and SEM to reveal their crystallinity, light-absorption ability, specific surface area, and surface features, respectively. The photocatalytic Fenton reaction was conducted using various LaFexNi1−xO3 perovskite oxides to decompose the methylene blue molecules. Accordingly, the synthesis condition of pH 0, calcination temperature at 700 °C, and Fe/Ni ratio = 7/3 could form LaFe0.7Ni0.3O3 perovskite oxides as highly efficient photocatalysts. Moreover, various conditions during the photocatalytic degradation were verified, such as pH value, catalyst dosage, and the additional amount of H2O2. LaFe0.7Ni0.3O3 perovskite oxides could operate efficiently under pH 3.5, catalyst dosage of 50 mg/150 mL, and H2O2 concentration of 133 ppm to decompose the MB dye in the 1st order kinetic rate constant of 0.0506 s−1. ER -