Synthesis and piezocatalytic performance of β-BaTi2O5 nanorods by hydrothermal method from dried gel

ABSTRACT β-BaTi2O5 (β-BT2) nanorods were obtained for the first time by a simple hydrothermal method from a dried gel precursor. The influence of NaOH solution concentration sfrom 0.1 M to 2 M on crystallisation and microstructure was discussed. β-BT2 nanorod with a single-crystal structure exhibited obvious piezoelectric response and piezocatalytic capability for rhodamine B. The degradation of RhB by β-BT2 nanorods under ultrasonic irradiation demonstrated that β-BT2 was a potential piezocatalyst. The proposed strategy can serve as a valuable reference for the synthesis of β-BT2 nanorods and their application in piezocatalysis.