Mesoporous Silicon / Polypyrrole Based Structures for Paranitrophenol Sensing

Abstract

Elaboration of new structures based on semi-conductors and conducting polymers can procure a new alternative to the development of various electrochemical sensors with good sensibility.The key idea of this paper is to develop a facile technique for the detection of the para-nitrophenol which is considered as an important toxic pollutant. In this context, different structures based on mesoporous silicon modified with Polypyrrole (PPy) were elaborated.The hybrid structures have been characterized by several techniques such as FTIR, SEM and Contact angle measurements.In addition, the behavior of these new structures for para-nitrophenol detection by cyclic voltammetry was studied. The results show a high sensitivity of the sensor in a large concentration interval.