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The room temperature stabled monoclinic KNbO_3 nanowires were found to act as photocatalyst for photocatalytic methane production and dye degradation in this work. Higher activities have been observed for monoclinic phase compared to the reference(orthorhombic phase). In the photoreduction of CO2 reaction, the monoclinic KNbO_3 nanowires exhibited a CH_4 evolution rate of 0.025 μmol·g~(-1)·h~(-1), which was higher than 0.021 μmol·g~(-1)·h~(-1) of orthorhombic KNbO_3 nanowires. In the photodegradation of rhodamine B(Rh B), almost all the Rh B were degraded after 90 min light illumination for monoclinic KNbO_3 nanowires. But for orthorhombic KNbO_3 nanowires, the concentration of Rh B only decreased to 62% of the initial value.
The room temperature stabled monoclinic KNbO_3 nanowires were found to act as photocatalyst methane production and dye degradation in this work. Higher activities have been observed for monoclinic phase compared to the reference (orthorhombic phase). In the photoreduction of CO2 reaction, the monoclinic KNbO_3 nanowires exhibited a CH_4 evolution rate of 0.025 μmol · g -1 · h -1, which was higher than 0.021 μmol · g -1 h -1 of orthorhombic KNbO 3 nanowires. In the photodegradation of rhodamine B (Rh B), almost all of the Rh B were degraded after 90 min light illumination for monoclinic KNbO 3 nanowires. But for orthorhombic KNbO 3 nanowires, the concentration of Rh B only decreased to 62% of the initial value.