Electrochemical and Fluorescent Investigation of Inorganic-organic Hybrid from Butylrhodamine B and Keggin-Type Polyoxometalates

A new inorganic-organic hybrid composed of butylrhodamine B (BRB) and Keggin-type polyoxometalates (PMo12) was introduced. The UV-visible and FTIR results indicate the formation of hybrid is caused by the interaction of butylrhodamine B and polyoxometallate. The BRB-PMo12 hybrid modified electrode shows the good electrochemical properites and catalysis to the reduction of bromate. Additionally, at the same condition, the fluorescence intensity of BRB-PMo12 hybrid is almost 1.3 times than that of butylrhodamine B. The corresponding results have important implications for the design of multi-functional hybrid materials, which could be used widely in chemo/biosensing and catalysis.