Component reconstitution-driven photoelectrochemical sensor for sensitive detection of Cu2+ based on advanced CuS/CdS p-n junction

作     者：Jing Liu Ying Liu Wei Wang Jing Li Xinyuan Yu Qinshu Zhu Zhihui Dai 

作者机构：Jiangsu Collaborative Innovation Center of Biomedical Functional Materials School of Chemistry and Materials ScienceNanjing Normal University 

出 版 物：《Science China Chemistry》 (中国科学（化学英文版）)

年 卷 期：2019年第62卷第12期

页      面：1725-1731页

核心收录：

学科分类：08[工学] 081101[工学-控制理论与控制工程] 0811[工学-控制科学与工程] 081102[工学-检测技术与自动化装置] 

基　　金：supported by the National Natural Science Foundation of China (21625502) Priority Academic Program Development and Postgraduate Research & Practice Innovation Program of Jiangsu Province (KYCX18,1188) 

主　　题：component reconstitution photoelectrochemical p-n junction CuS/CdS hybrids Cu^2+ 

摘      要：The rational design of robust photoactive material and artful sensing strategy are vital for the construction of an ultrasensitive photoelectrochemical（PEC） sensor. Although great progress has been made in PEC sensing, the resultant detection performances and adoptable sensing strategies are still limited. Herein, through the design of a subtle component reconstitution strategy, an ultrasensitive PEC sensor is developed for the detection of Cu2+ based on advanced Cu S/Cd S nanohybrids（NHs）.This proposed sensor shows superior sensing performances with a low detection limit of 0.1 n M and a wide detection range from0.2 n M to 60 μM due to the formation of p-n junction between Cu S and Cd S and the component transformation of Cd S to CuxS（x=1,2）. Moreover, such PEC sensor also displays goodish results for monitoring the Cu2+released from apoptotic He La cells in vitro. This idea of component reconstitution provides a new paradigm for the design of advanced PEC sensors.