Piezoelectric catalytic activity of strontium titanate/nickel butadione oxime composites

Abstract

Vibration energy can be seen everywhere in our daily life, such as walking, noise and car engines. If all this energy could be captured and harnessed, it would be an interesting breakthrough in energy. This has been made possible by the discovery of piezoelectric materials, which can convert vibrational energy into electricity by sensing positive and negative charges. In this paper, nickel butadione oxime Ni(dmgH)2 and strontium titanate (SrTiO3) were successfully combined together to form the composite material of nickel butadione oxime/strontium titanate SrTiO3/Ni(dmgH)2 by hydrothermal method. The morphology and composition of the sample were analyzed by XRD, SEM and XPS characterization methods. Strontium titanate and nickel butadione oxime were successfully combined with good crystallinity. According to the degradation results of HTC solution, the piezoelectric catalytic performance of the dye can be significantly improved in a specific time, and the degradation efficiency of HTC solution reaches about 91 %. Compared with the pure Ni(dmgH)2, the composite sample shows better piezoelectric catalytic activity under ultrasonic vibration.