Sonophotocatalytic Degradation and Mineralization of Bisphenol A in A Sequential Ultrasound Intensified Photocatalytic Reactor

摘要

A sequential ultrasound intensified photocatalytic reactors was investigated to degrade and mineralize typical endocrine disruptor, bisphenol A (BPA) using nanometer TiO_2 as photocatalyst. The process parameters i.e., US power, TiO_2 dosages, air flow rate and circulating liquid velocity of the reactors were optimized of the process. Under the optimum operation condition, nearly 90% and 80% BPA was degraded and mineralized in the reactor within 2.5 h. The combination of sonolysis and photocatalysis of TiO_2 exhibits a synergetic effect, and benefits for BPA mineralization.