Abstract
A novel heterojunction, on the basis of Ag doped zinc oxide nanorods (Ag–ZnO NRs) coupled with nickel cobalt layered double hydroxides (NiCo-LDHs), has been designed and prepared via a hydrothermal method followed by electrodeposition technique on F-doped SnO2 conducting glass (FTO) substrates. The morphology, compositions, optical and photoelectrochemical (PEC) performance were characterized by scanning electron microscopy, X-ray photoelectron spectroscopy, UV–vis spectroscopy, infrared spectroscopy, photoluminescence spectroscopy and PEC technique. The prepared NiCo-LDHs/Ag-ZnO NRs/FTO electrode exhibited a significantly enhanced PEC activity owing to the synergy effect of the surface plasmonic resonance of Ag nanoparticles and the heterostructure construction. The as-prepared electrode showed enhanced PEC quercetin (Qu) sensing performance under visible light irradiation. A broad linear range for Qu was obtained in the range of 1.0 × 10−10~5.0 × 10−6 mol/L and the detection limit was lowered to 0.075 nmol/L. Additionally, the PEC sensing platform for Qu exhibited advanced performances with high selectivity, good reproducibility and stability. The present work provides a new approach for the design of a PEC sensor for the detection of Qu in the practical applications.
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.
