title: Excellent graphitic carbon nitride nanosheets-based photoelectrochemical platform motivated by Schottky barrier and LSPR effect and its sensing application.
abstract: A visible light responsive photocatalytic hybrid with excellent photoelectrochemical activity was first fabricated via the self-assembly of Au nanorods onto poly(l-cysteine) modified graphitic carbon nitride nanosheets. Herein, layered structural graphitic carbon nitride nanosheets with a proper band gap, high stability, and nontoxicity, as a photoactive material, demonstrate a high photocatalytic activity. Furthermore, the incorporation of multifunctional Au nanorods gave the hybrid a Schottky barrier and localized surface plasmonic resonance, which considerably enhanced the separation of the photo-excited electrons and holes, resulting in increased photoelectrochemical performance. As a proof of concept, mercapto-beta-cyclodextrin as a bionic recognition device was introduced into the hybrid to selectively detect naringin on the basis of the dramatic decreasing of photocurrent. The visible-light driven photoelectrochemical sensor exhibited excellent analytical performance, including high sensitivity, good selectivity and wide linear range from 1 × 10(-4) to 1 × 10(-10) M.
authors.affiliation: College of Chemistry and Chemical Engineering, Fujian Normal University, Fuzhou 350108, P. R. China. dhong@fjnu.edu.cn.
authors.forename: Hong
authors.initials: H
authors.lastname: Dai
authors.forename: Shupei
authors.initials: S
authors.lastname: Zhang
authors.forename: Yilin
authors.initials: Y
authors.lastname: Li
authors.forename: Yanyu
authors.initials: Y
authors.lastname: Lin