This paper describes the development of a piezoelectric flextensional transducer, which aims toeffectively degrade the TCE contained in aqueous solution. In order to adjust the 1st flextensionalresonant frequency and output displacement of the flextensional transducer, the effect of the geometricalvariations on performance was analyzed using the finite element analysis (FEM). The results indicatedthat the effect of external shell`s thickness and curvature were most significant, and experimentalfabrication and characterization of a transducer was performed to confirm the results. To prove the capacity to degrade the TCE contained in aqueous solution, 50 and 100 ppm of TCE were prepared in sealed chamber, and investigated the removal rate of TCE through the time and initial concentration.
