Abstract
In this work, graphene supported graphitic carbon nitride (g-C3N4, GCN) photocatalyst was used for photo activation of peroxymonosulfate (PMS) oxidant. Coupling with graphene (Gr) upgraded photocatalytic performance of g-C3N4 (GCN), as graphene increased surface area, acted as a sink/support material and reduced charge carriers recombination. PMS assisted photodegradation processes had superior malathion pesticide degradation efficiency in 5 h. Peroxymonosulfate activation by graphene supported graphitic carbon nitride (Gr/GCN/PMS) exhibited higher malathion degradation than other photocatalysts and followed the removal order: 94% (Gr/GCN/PMS) > 72% (Gr/GCN) > 65% (GCN/PMS) > 45% (GCN) > 30% (Gr). Likewise, 94% removal of Escherichia coli (E. coli) was observed by Gr/GCN nanocomposite in 6 h under visible light. Scavenging studies confirmed the important role of holes (h+), hydroxyl (•OH) and superoxide (SO4•−) radicals in photodegradation processes which was further validated by possible mechanism.
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.
