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 sensi...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.展开更多
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)
文摘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.
