A facile and efficient strategy for photoelectrochemical detection of cadmium ions based on in situ electrodeposition of CdSe clusters on TiO2 nanotubes.

An efficient protocol for selective and sensitive detection of Cd(2+) was first developed based on photocurrents obtained at CdSe clusters which are in situ electrodeposited on TiO(2) nanotubes with the gradual addition of Cd(2+), with theoretical and technical simplicity, and further successfully applied to an assay of Cd(2+) in tap and lake water samples.