Abstract
Three-dimensional (3D) hydrangea-like Mn3O4@(PSS/PDDA/Pt)n was prepared via in situ reduction of Pt4+ on sea-urchin-like MnO2 coated with lay-by-layer (LBL) films of polyelectrolytes. Combining of ultrafine Pt nanoparticles, 3D structure and manganese oxide support makes these Mn3O4@(PSS/PDDA/Pt)n particles suitable for anode-oxidation of tetracycline (TC) with both excellent mass activity and durability. The performance and possible mechanism of TC degradation on Mn3O4@(PSS/PDDA/Pt)n anode were investigated. The maximal TC removal efficiency on Mn3O4@(PSS/PDDA/Pt)n anode achieved 98.8% at a TC concentration of 60 mg L−1, pH 7.0 and 8 V in the presence of NaCl. The TC electrochemical oxidation on Mn3O4@(PSS/PDDA/Pt)n anode followed a pseudo-first-order kinetic. Additionally, the efficiency of TC removal on Mn3O4@(PSS/PDDA/Pt)1 anode maintained more than 95% after recycling for 5 times, indicating the considerable durability. We also evaluated the application for degradation of other antibiotics. Thus, our research provides a deep insight into the preparation of efficient anode based on 3D manganese oxides loaded with ultrafine Pt particles for potential application in electrochemical oxidation of TC and other antibiotics in contaminated water.
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 callMore From: Journal of the Taiwan Institute of Chemical Engineers
Disclaimer: 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.
