Rational design of hexagonal zinc oxide/boron-doped g-C3N4 nanosheets as efficient electrocatalyst for enhanced sensing of rutin in fruit samples

Abstract

The semiconducting metal oxides coupled with carbon materials show a broad interest in developing low-cost and accurate electrochemical sensors. Herein, we designed a sensitive and selective electrode material of hexagonal zinc oxide nanodiscs decorated (ZnO NDs) boron-doped graphitic carbon nitride (B-CN) sheets fabricated over glassy carbon electrode (GCE) for efficient detection of rutin (RT). The prepared electrocatalyst and fabricated sensors were analyzed using different physicochemical and electrochemical characteristics. The prepared electrocatalyst and fabricated sensor confirmed physicochemical and electrochemical characteristics. Notably, the developed sensor shows good sensitive recognition of RT detection (1.0225 μA·μM-1·cm-2), a low limit of detection (LOD= 0.0027 µM), and a wide linear range (0.005–589.685 µM) in phosphate buffer (PB, pH 3.0). The newly developed sensor was also applied to detect potential interfering species and real-sample analysis. The proposed sensor show excellence in selectivity, reproducibility, stability (89.55%), and practicability during electrochemical RT detection. The present report demonstrates to development of a cheap and sensitive platform for RT determination in fruit samples.