▎ 摘　　要

Graphene@CdS nanowires (GP@CdS NWs) was synthesized by electrostatic assembly and hydrothermal method, and then decorated with CuO nanoparticles via electrodeposition on substrate of glassy carbon electrode to conctruct a photoelectrochemical enzyme-free glucose sensor. Scanning electron microscopy, electrochemical impedance spectroscopy and cyclic voltammetry were used to characterize the morphology and electrochemical properties of the above ternary CuO/GP@CdS NWs nanocomposites. The integration of photosensitive material GP@CdS NWs with electrocatalytic materials of CuO makes the nanocomposites show prominent photoelectrocatalytic activity toward glucose oxidation in alkaline solution. A 2.45 times increase in sensitivity under visible light irradiation was observed compared to dark condition. As a photoelectrochemical platform for non-enzymatic glucose sensing, the CuO/GP@CdS NWs modified electrode exhibited advantages, such as high detection sensitivity, wide linear concentration range, low detection limit and acceptable anti-interference ability. Good recovery obtained for glucose analysis in human serum sample suggested the validity of the proposed method for real sample analysis.