Abstract
Powdered sludge carbons were prepared by pyrolysis at 800 °C and used for the first time as microparticle electrodes of a three-dimensional electrode reactor. It was found that acid orange 7 (AO7) could be efficiently removed by adsorption and electro-oxidation. The electrochemical oxidation could degrade both AO7 in aqueous solution and AO7 adsorbed on the microparticle electrodes. The degradation efficiency of the former reached 80.2%, and that of the latter is estimated to be 13.6% of the adsorption amount under the conditions of 20 V cell voltage, 300 mL min–1 airflow, and 60 min reaction time. This degradation is a result of not only the electrocatalytic activity of the carbon component but also the electro-Fenton-like effect of Fe3O4 and the co-Fenton-like effect of SiO2 and Al2O3 in the sludge carbon.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
