Simple fabrication of a hexagonal prisms with hexagonal pyramid tips V2O5@MOF(V, Co) and its application as electrochemical sensor for Pb2+

A hexagonal prisms with hexagonal pyramid tips metal–organic frameworks (MOFs) modified V2O5 nanoparticles, V2O5@MOF(V, Co) has been fabricated through a simple one-pot hydrothermal reaction and then characterized by XRD, FT-IR, FE-SEM, TEM, XPS and BET. The as-prepared V2O5@MOF(V, Co) composites were found to be an excellent electrode modification material for electrochemical detection of Pb2+ in aqueous solution. Operational parameters such as pH, deposition potential, and deposition time, were also optimized to detect trace amounts of Pb2+. This study provides a feasible research method and practical strategy for sensitive and sensitive on-line detection of lead ions using novel MOFs composites.