Abstract
In this study, meso‑tetrakis(4-carboxyphenyl)porphyrin (TCPP) was chemically bonded to the surface of graphene oxide (GO) nanosheets and characterized by various techniques. The sensing prowess of the prepared composite towards metal ions was investigated through photoluminescence (PL) spectroscopy. Our results indicate that TCPP-GO can detect Mn2+ ions through fluorescence quenching. Therefore, experiments related to concentration, selectivity, detection limit, and response time were conducted to study the performance of the TCPP-GO sensor. A linear response of fluorescence intensity of TCPP-GO and Mn2+ in the 25–270 μM range with a detection limit of 1.8 μM was observed. The competition test displayed that the presence of other ions such as Sn2+, Pt2+, Ca2+, Na+, Fe3+, Fe2+, Zn2+, Cu2+, Cr2+, Co2+, Ni2+ had no significant effect on detecting Mn2+ ions. Furthermore, the suggested sensor demonstrated excellent performance for sensing manganese ions in real water samples.
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.
