The Effects of Ultrasound on the Electro-Oxidation of Sulfate Solutions at Low pH.

ABSTRACT: The electro-oxidation of sulfate solutions is a well-established route for the generation of powerful oxidants such as persulfate. Despite this, the effects of simultaneous ultrasound irradiation during this process has attracted little attention. Herein, we investigate the effects of a low-intensity ultrasonic field on the generation of solution-phase oxidants during the electro-oxidation of sulfate solutions. Our results show that at high current densities and high sulfate concentrations, ultrasound has little effect on the Faradaic and absolute yields of solution-phase oxidants. However, at lower current densities and sulfate concentrations, the amount of these oxidants in solution appears to decrease under ultrasonic irradiation. A mechanism explaining these results is proposed (and va

SUBMITTER: Wallace AG 

PROVIDER: S-EPMC6899799 | biostudies-literature | 2019 Nov

REPOSITORIES: biostudies-literature